US20060218876A1 - Apparatus for Inflating and Sealing Pillows in Packaging Cushions - Google Patents
Apparatus for Inflating and Sealing Pillows in Packaging Cushions Download PDFInfo
- Publication number
- US20060218876A1 US20060218876A1 US11/456,648 US45664806A US2006218876A1 US 20060218876 A1 US20060218876 A1 US 20060218876A1 US 45664806 A US45664806 A US 45664806A US 2006218876 A1 US2006218876 A1 US 2006218876A1
- Authority
- US
- United States
- Prior art keywords
- film
- inflation
- plastic film
- longitudinally extending
- extending channel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form
- B32B3/10—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material
- B32B3/12—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material characterised by a layer of regularly- arranged cells, e.g. a honeycomb structure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
- B29C65/22—Heated wire resistive ribbon, resistive band or resistive strip
- B29C65/221—Heated wire resistive ribbon, resistive band or resistive strip characterised by the type of heated wire, resistive ribbon, band or strip
- B29C65/222—Heated wire resistive ribbon, resistive band or resistive strip characterised by the type of heated wire, resistive ribbon, band or strip comprising at least a single heated wire
- B29C65/223—Heated wire resistive ribbon, resistive band or resistive strip characterised by the type of heated wire, resistive ribbon, band or strip comprising at least a single heated wire comprising several heated wires
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/004—Preventing sticking together, e.g. of some areas of the parts to be joined
- B29C66/0042—Preventing sticking together, e.g. of some areas of the parts to be joined of the joining tool and the parts to be joined
- B29C66/0044—Preventing sticking together, e.g. of some areas of the parts to be joined of the joining tool and the parts to be joined using a separating sheet, e.g. fixed on the joining tool
- B29C66/00441—Preventing sticking together, e.g. of some areas of the parts to be joined of the joining tool and the parts to be joined using a separating sheet, e.g. fixed on the joining tool movable, e.g. mounted on reels
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
- B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
- B29C66/112—Single lapped joints
- B29C66/1122—Single lap to lap joints, i.e. overlap joints
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
- B29C66/13—Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of joint cross-sections not provided for in groups B29C66/11 - B29C66/12
- B29C66/133—Fin-type joints, the parts to be joined being flexible
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
- B29C66/23—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being multiple and parallel or being in the form of tessellations
- B29C66/232—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being multiple and parallel or being in the form of tessellations said joint lines being multiple and parallel, i.e. the joint being formed by several parallel joint lines
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/344—Stretching or tensioning the joint area during joining
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
- B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
- B29C66/43—Joining a relatively small portion of the surface of said articles
- B29C66/439—Joining sheets for making inflated articles without using a mould
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
- B29C66/812—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the composition, by the structure, by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps
- B29C66/8122—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the composition, by the structure, by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps characterised by the composition of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
- B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
- B29C66/8145—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps
- B29C66/81463—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps comprising a plurality of single pressing elements, e.g. a plurality of sonotrodes, or comprising a plurality of single counter-pressing elements, e.g. a plurality of anvils, said plurality of said single elements being suitable for making a single joint
- B29C66/81465—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps comprising a plurality of single pressing elements, e.g. a plurality of sonotrodes, or comprising a plurality of single counter-pressing elements, e.g. a plurality of anvils, said plurality of said single elements being suitable for making a single joint one placed behind the other in a single row in the feed direction
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
- B29C66/834—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools moving with the parts to be joined
- B29C66/8341—Roller, cylinder or drum types; Band or belt types; Ball types
- B29C66/83411—Roller, cylinder or drum types
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
- B29C66/834—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools moving with the parts to be joined
- B29C66/8341—Roller, cylinder or drum types; Band or belt types; Ball types
- B29C66/83411—Roller, cylinder or drum types
- B29C66/83413—Roller, cylinder or drum types cooperating rollers, cylinders or drums
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/84—Specific machine types or machines suitable for specific applications
- B29C66/851—Bag or container making machines
- B29C66/8511—Bag making machines
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31D—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER, NOT PROVIDED FOR IN SUBCLASSES B31B OR B31C
- B31D5/00—Multiple-step processes for making three-dimensional articles ; Making three-dimensional articles
- B31D5/0039—Multiple-step processes for making three-dimensional articles ; Making three-dimensional articles for making dunnage or cushion pads
- B31D5/0073—Multiple-step processes for making three-dimensional articles ; Making three-dimensional articles for making dunnage or cushion pads including pillow forming
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
- B65D81/02—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage
- B65D81/05—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage maintaining contents at spaced relation from package walls, or from other contents
- B65D81/051—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage maintaining contents at spaced relation from package walls, or from other contents using pillow-like elements filled with cushioning material, e.g. elastic foam, fabric
- B65D81/052—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage maintaining contents at spaced relation from package walls, or from other contents using pillow-like elements filled with cushioning material, e.g. elastic foam, fabric filled with fluid, e.g. inflatable elements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2022/00—Hollow articles
- B29L2022/02—Inflatable articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/712—Containers; Packaging elements or accessories, Packages
- B29L2031/7138—Shock absorbing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/712—Containers; Packaging elements or accessories, Packages
- B29L2031/7138—Shock absorbing
- B29L2031/714—Shock absorbing for use in loose form
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
- Y10T156/17—Surface bonding means and/or assemblymeans with work feeding or handling means
- Y10T156/1702—For plural parts or plural areas of single part
- Y10T156/1712—Indefinite or running length work
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
- Y10T156/17—Surface bonding means and/or assemblymeans with work feeding or handling means
- Y10T156/1702—For plural parts or plural areas of single part
- Y10T156/1712—Indefinite or running length work
- Y10T156/1737—Discontinuous, spaced area, and/or patterned pressing
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
- Y10T428/1334—Nonself-supporting tubular film or bag [e.g., pouch, envelope, packet, etc.]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
- Y10T428/1334—Nonself-supporting tubular film or bag [e.g., pouch, envelope, packet, etc.]
- Y10T428/1345—Single layer [continuous layer]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24479—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness
- Y10T428/24562—Interlaminar spaces
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24479—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness
- Y10T428/24612—Composite web or sheet
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24628—Nonplanar uniform thickness material
- Y10T428/24661—Forming, or cooperating to form cells
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24744—Longitudinal or transverse tubular cavity or cell
Abstract
A machine which inflates and seals pillows in packaging is compact in overall size, can be conveniently operated to produce varied lengths of strips of inflated pillow-type packaging as needed, can begin production of inflated pillow-type strip packaging immediately after being held out of a production cycle for some period of time, and applies a heated sealing element directly to and in sliding contact with a web of film to securely seal the inlet port of an inflated pillow while the pillow is under pressure and as the web of film is continuously and uninterruptedly advanced through the machine.
Description
- This is a continuation of application Ser. No. 11/186,820, filed Jul. 22, 2005, which is a continuation application of application Ser. No. 10/732,437, filed Dec. 9, 2003, which is a division of application Ser. No. 10/366,812, filed Feb. 13, 2003, which in turn is a division of application Ser. No. 10/108,823, filed Mar. 26, 2002, now U.S. Pat. No. 6,605,169, and a division of application Ser. No. 09/638,843, filed Aug. 14, 2000, now U.S. Pat. No. 6,659,150, which in turn is a continuation-in-part of application Ser. No. 09/439,552, filed Nov. 12, 1999, now U.S. Pat. No. 6,209,286, which claims priority under 35 U.S.C. § 119(e) to Provisional Application No. 60/123,497, filed Mar. 9, 1999.
- This invention relates to methods and apparatus for inflating and sealing pillows in packaging.
- This invention relates particularly to the construction and operation of a machine which is small enough to be installed for operation on site where articles packaged for transport are placed in shipping containers with protective inflated pillow-type strip packaging.
- This invention relates particularly to a machine which is compact in overall size, which can be conveniently operated to produce varied lengths of strips of inflated pillow-type packaging as needed, which can begin production of inflated pillow-type strip packaging immediately after being held out of a production cycle for some period of time and which applies a heated sealing element directly to and in sliding contact with a web of film to securely seal the inlet port of an inflated pillow while the pillow is under pressure and as the web of film is continuously and uninterruptedly advanced through the machine.
- This invention relates particularly to a machine which forms the seal complete and secure during a short path of travel and during a short interval of time. The seal is made without the need for additional pressing together of the film after the sealing and without the need for additional cooling of the seal after the sealed inlet port moves out of contact with the sealing structure.
- Webs of plastic film which are constructed to permit the production of strips of air filled envelopes, cushions and pillows have (in the past ten years or so) been used extensively for cushioning objects to be transported in containers.
- The thin webs of plastic film are inexpensive, tough, resilient and recyclable. Strips of inflated pillow packaging which are created from these webs of plastic film are used for void-fill packaging to replace products such as crumpled paper or polystyrene peanuts and for protective packaging to replace molded or extruded foams.
- U.S. Pat. No. 5,454,642; U.S. Pat. No. 5,651,237; U.S. Pat. No. 5,755,328; U.S. Pat. No. 4,017,351; and U.S. Pat. No. 5,824,392 disclose methods, apparatus, and webs of plastic film used for making strips of inflated pillow packaging of this general kind. Each of these U.S. patents is incorporated by reference in this application.
- U.S. Pat. Nos. 6,116,600 and 6,209,286 also disclose methods, apparatus and webs of plastic film of this general kind and are incorporated herein by reference.
- Sealing an inflated pillow made a web of plastic film while the air inflates the pillow under pressure and while the web of plastic film is being transported through the machine presents problems.
- The seal must be secure and must not leak in order for the inflated pillow packaging to be used effectively for cushioning objects transported within a container.
- The seal needs to be formed efficiently, quickly and without extensive, related pressing and/or cooling structure in order to make the machine as compact as possible in size and as efficient as possible in production rate.
- To simplify machine construction and to provide a high efficiency of production, it is desirable to be able to make the seal as the web of plastic film is moved continuously and without any interruption and/or intermittent stopping of the film transport during the sealing operation.
- It is a primary object of the present invention to construct and to operate a machine which is compact in size, which is efficient in production, which is continuous and uninterrupted in operation and which produces seals which are secure and which do not leak.
- In a specific embodiment of the present invention, a machine inflates and seals pillows in packaging while continuously and uninterruptedly advancing a web of film through an inflating station and a sealing station. The inflating station sequentially inflates pillows at preformed patterns in the web of film by introducing pressurized air through a narrow width inlet port of a preformed pattern. The sealing station seals each inlet port by applying a heated sealing element directly to and in sliding contact with the web of film while the air in an inflated pillow is under pressure as the inlet port moves across the heated sealing element.
- The web of film has an uninflated pillow pattern and an uninflated inflation channel preformed in the film. The uninflated pillow patterns comprise multiple, spaced apart, pillow patterns aligned along one side of an inflation channel. The inflation channel extends longitudinally and continuously along the entire length of the film. Each uninflated pillow pattern has a narrow width inlet port extending generally transversely to the longitudinally extending inflation channel and connecting the uninflated pillow pattern to the uninflated inflation channel so that, when pressurized air is introduced into the inflation channel, the pressurized air can be transmitted through the inlet port to inflate the pillow pattern. In some cases the preformed pattern is also formed with outlet ports connected to the inflation channel in such a way that air entering the inflation channel can move into a pillow through an inlet port and can also exit out of the inflation channel through the outlet port. The outlet port is generally shaped smaller than the inlet port.
- By allowing the air above a desired pressure to escape through an outlet port or ports, the pressure in the inflation channel is maintained at a desired level for inflating the pillows creating over-pressurization.
- The air escaping through the outlet port is also sensed to detect where the pillows are in the machine. These detected outlet port positions are then used as signals for an associated electronic unit to count the number of pillows inflated in a particular run through the machine. This also facilitates being able to stop the movement of the film through the machine after one production run of a selected number of inflated pillows at a position which is the right position to start a subsequent production run of a selected number of inflated pillows.
- In a specific embodiment of the present invention, the web of film with the preformed patterns is stored on a storage roller of the machine and is advanced through the machine by a first set of nip rollers and a second set of nip rollers at a respective first film transport station and a second film transport station.
- Pressurized air is introduced into the inflation channel of the web of film at an inflating station as the web of film is transported through the first film transport station. The pressurized air inflates at least one of the pillow patterns prior to the time the web of film is continuously transported through a sealing station.
- Pressure is maintained in the inflated pillow pattern within a calibrated pressure range during the time that the web of film is continuously transported through the sealing station.
- At the sealing station the inlet port of an inflated pillow is sealed by applying a heated sealing element directly to and in sliding contact with the web of film. The heated sealing element slides across the inlet port while the air in the inflated pillow is under pressure and as the web of film is continuously and uninterruptedly advanced throughout all components of the machine.
- The heated sealing element has a relatively small longitudinal dimension in the direction of movement of the web of film. In a specific embodiment the length of the heated sealing element is about the same as the width of the inlet port of a pillow pattern. This small size of the heated sealing element helps minimize the amount of sealing heat applied to the web of film.
- The sealing station includes a sealing roller disposed alongside the heated sealing element so as to permit the web of film to be advanced between the sealing roller and the heated sealing element. Adjustable biasing means provide for adjustment of the force with which the heated sealing element and the sealing roller are pressed toward engagement with one another.
- The sealing roller is positioned with respect to the first and second pairs of nip rollers so as to cause the web of film to wrap around a part of the peripheral surface of the sealing roller both in a circumferential direction and also in a lateral direction. This helps create a dead and flat zone right at and adjacent to the line of sealing across the inlet port. This in turn facilitates making a secure seal without leaking while the pillow is inflated under pressure.
- The axes of rotation of at least the second pair of nip rollers are preferably canted at a slight angle with respect to the axis of rotation of the sealing roller.
- The second pair of nip rollers are preferably rotated at a speed slightly faster than the speed of rotation of the first pair of nip rollers so as to maintain tension in the web of film between the second and first pair of nip rollers.
- In one specific embodiment of the present invention the heated sealing element is a fabric covered Nichrome wire disposed at the end of a bar element which is biased toward engagement with a sealing roller. The fabric covering of the Nichrome wire has a Teflon coating on its outer surface for facilitating sliding of the heated sealing element on the engaged surface of the film as the web of film is advanced through the machine.
- The bar on which the heated sealing element is mounted is a composite bar. The very tip of the bar is a ceramic having good insulating qualities, and the remainder of the bar is a different material selected to provide enhanced mechanical durability.
- The seal is formed complete and secure during a short path of travel through the sealing station.
- The seal is complete and secure at the time the web of film moves out of contact with the wheel at the sealing station and without the need for additional pressing together of the film after the sealing station and without the need for additional cooling of the film across the sealed inlet port after the sealed inlet port moves out of contact with the sealing station.
- In a second specific embodiment of the present invention the sealing wheel is pressure biased toward engagement with the heated sealing element.
- In both the first and second specific embodiments the heated sealing element and the sealing wheel are spaced apart from one another when the machine is not transporting the web of film through the machine in a production run. This enables the heated sealing element to be maintained at a desired temperature level while preventing contact with and possible burning of the unmoving film at the sealing station.
- In one specific embodiment of the invention the fabric covering for the Nichrome wire is held in a fixed position at the end of the bar element and is replaced as needed.
- In another specific embodiment of the invention the heating station includes a cartridge unit which can be quickly and easily interchanged with another cartridge unit. The cartridge unit includes an elongated strip of the fabric covering. The strip is mounted on two rotatable reels. The fabric always covers the Nichrome wire, as in the first specific embodiment, and the fabric has a Teflon coating on the side which engages the film in sliding contact, as in the first specific embodiment. The elongated strip of fabric covering is wound between the two reels so as to be moved across the length of the Nichrome wire at a speed which is much slower than the speed of movement of the film through the machine but which is fast enough to ensure that the covering strip of fabric is always effective to function properly without any bum through of the fabric or damage to the film from the heated Nichrome wire. The cartridge unit permits the Nichrome wire of the heated sealing element to be easily disconnected from its power supply. The cartridge units are constructed to be readily interchanged as units, rather than having to replace individual components of the cartridge unit.
- Methods and apparatus which incorporate the features noted above and which are effective to function as described above comprise further, specific objects of this invention.
- Other and further objects of the present invention will be apparent from the following description and claims and are illustrated in the accompanying drawings, which by way of illustration, show preferred embodiments of the present invention and the principles thereof and what are now considered to be the best modes contemplated for applying these principles. Other embodiments of the invention embodying the same or equivalent principles may be used and structural changes may be made as desired by those skilled in the art without departing from the present invention and the purview of the appended claims.
-
FIG. 1 is an isometric view of a machine, constructed in accordance with one embodiment of the present invention, for inflating and sealing pillows in packaging.FIG. 1 is a general view which illustrates how a web of film is transported through the machine.FIG. 1 shows how the web of film has a preferred pattern of spaced-apart, inflatable pillows aligned along one side of a longitudinally extending inflation channel.FIG. 1 illustrates how rollers (at a first transport station, at a sealing station, and at a second transport station) are positioned to engage the underside (as viewed inFIG. 1 ) of the web of film. -
FIG. 2 is another isometric view of the machine shown inFIG. 1 , but inFIG. 2 the lower part of the figure has been revised to (in effect) see through the web of film in order to show details of certain structure of the machine.FIG. 2 shows the inflation tube of the inflating action, the nip rollers of the first transport station, the heated sealing element and the associated sealing roller at the sealing station, and the nip rollers at the second transport station. -
FIG. 3 is an isometric view of the machine ofFIGS. 1 and 2 , but without the web of film material.FIG. 3 shows the main structural and operative features of the machine itself. -
FIG. 4 is an isometric, enlarged view showing details of the features of the first film transport station, the inflation station structure, the sealing station structure, the slitting station structure, and the second film transport station structure. -
FIG. 5 is an isometric, enlarged view likeFIG. 4 but shows details of just the mechanism for driving the various rollers of the machine.FIG. 5 does not show the inflation station structure, the heated sealing element at the sealing station, or the slitter structure for opening up the inflation tube of the web of film after the sealing station. -
FIG. 6 is an isometric view showing details of the structure of the sealing station.FIG. 6 shows the heated sealing element pressed toward engagement with the sealing wheel in the positions occupied by those two components during a production run of the inflated pillow packaging through the machine. -
FIG. 7 is a top plan view, taken along the line and in the direction indicated by the arrows 7-7 inFIG. 6 , but showing the heated sealing element retracted away from the sealing wheel in the positions occupied by those two components when no film is being transported through the machine. -
FIG. 8 is a top plan view of a specific embodiment of a web of film constructed in accordance with the present invention and having a specific pattern of inflatable pillows, inlet ports for permitting inflation of the pillows, and escape ports for preventing over pressurization of the pillows and for also permitting more accurate position sensing of the pillows as the web of film moves through the machine. -
FIGS. 9A-9G are a series of the isometric views showing details of the structure, components and sequence of assembly of certain components of the heated sealing element at the sealing station. -
FIG. 10 is an isometric view of a machine constructed in accordance with a second embodiment of the present invention. The embodiment of the machine shown inFIG. 10 includes a cartridge unit which is mounted on a separate sub-plate or sub-frame and which permits all of the components of the cartridge unit to be quickly and easily removed and replaced by another, replacement cartridge unit. The cartridge unit provides the heated sealing element components for the sealing station.FIG. 10 shows the sealing wheel of the sealing station positioned to engage the web of film in sliding contact with the heated sealing element during a production run of packaging. -
FIG. 11 is an isometric view likeFIG. 10 but showing the sealing wheel moved to a retracted position which permits the web of film to move out of contact with the heated sealing element when the machine is stopped between production runs and the film is not being transported through the machine. -
FIG. 12 is an enlarged, isometric view of the replaceable cartridge unit itself.FIG. 12 shows the strip of covering fabric in stored positions on the reels of the cartridge unit prior to installation of the cartridge unit in the machine. When installed in the machine, a portion of the strip of covering fabric is positioned over the wire of the heating element (as illustrated inFIGS. 10 and 11 ). -
FIG. 13 is an enlarged, isometric view of the sealing wheel and the related actuator mechanism for positioning the sealing wheel at the sealing station. -
FIG. 14 is an enlarged, side elevation view of the sealing station structure with the structure in the operative position shown inFIG. 10 ; and, -
FIG. 15 is an enlarged, side elevation view of the sealing station structure with the structure in the non-operating position shown inFIG. 11 . -
FIG. 16 is an isometric view of a machine for manufacturing air-filled sheet plastic shipping pillows or cushions in a continuous manner from a roll of film material in accordance with another embodiment of the present invention. -
FIG. 17 shows an alternative embodiment of the machine shown inFIG. 16 . -
FIGS. 1, 2 and 3 are isometric views of a machine, constructed in accordance with one embodiment of the present invention, for inflating and sealing pillows in packaging. - The machine is indicated by the
general reference numeral 11 in each ofFIGS. 1, 2 and 3. - The
machine 11, as most easily viewed inFIG. 3 , comprises amain plate 13 on which various structural and operational features are mounted. - A
support tube 15 is mounted at the upper (as viewed inFIGS. 1-3 ) of themain plate 13 for supporting aroll 17 of a web of film 19 (seeFIGS. 1 and 2 ). -
Guide tubes plate 13 below thetube 15. Thetubes film 19 from theroll 17 to theoperating mechanism 25 of themachine 11. Theoperating mechanism 25 is described in more detail below. - The
mechanism 25 is illustrated in detail inFIG. 4 and comprises a firstfilm transport station 27, a secondfilm transport station 29, an inflatingstation 31, a sealingstation 33, and a slittingstation 35. - The first
film transport station 27 includes a first pair of niprollers FIG. 1 ) and for pulling the web offilm 19 from theroll 17 and under and over theguide tubes film transport station 27 when the nip rollers are rotated by associated drive gears 41, 43 and adrive belt 45. The niprollers FIG. 4 . - The
drive belt 45 is driven by adrive gear 47 which is in turn driven by a motor 49 (seeFIG. 5 ). - The second
film transport station 29 comprises a second pair of niprollers film 19 to continuously advance the web offilm 19 from thefirst transport station 27 to and through the inflatingstation 25 and to and through the sealingstation 33 and then to and through the secondfilm transport station 29. - The nip
rollers FIG. 4 . - Drive
shafts rollers - Drive
shafts rollers - With continued reference to
FIG. 4 , thedrive belt 45 passes about anidler gear 57. The drive gears 41, 43, 47, 53, 55 andidler gear 57 are all mounted for rotation on and are supported by themain plate 13. - The inflating
station 31 includes aninflation tube 59 and a generally spherically shaped and partially Teflon coatedball 61 located at the upper end (as viewed inFIG. 4 ) of thetube 59. Theball 61 has a plurality ofopenings 63 for injecting pressurized air into an inflation channel in the web offilm 19. - As illustrated in
FIGS. 1, 2 and 8, the web offilm 19 as stored on theroll 17 shown inFIG. 1 has a pattern ofpillows 65, a longitudinally extendinginflation channel 67,inlet ports 69, andoutlet ports 71 preformed in the web of film. Thepillows 65,channel 67,ports 69 andports 71 are uninflated in the web of film as stored on theroll 17. - The
uninflated pillow patterns 65 are longitudinally spaced apart from one another and are aligned (in the embodiment of the web offilm 19 illustrated in the drawings) along one side of theinflation channel 67. - The
inflation channel 67 extends longitudinally and continuously along the entire length of the web offilm 19. - The
inflation channel 67 is dimensioned to provide a close, sliding fit over the Teflon coatedball 61. - Each
pillow 65 is connected to theinflation channel 67 by aninlet port 69. Theinlet port 69 extends generally transversely to the longitudinally extendinginflation channel 67 and has a narrow interior width which is positioned at the sealing station 33 (in a manner to be described more fully below) to facilitate quick and secure sealing of pressurized air within aninflated pillow 65 in a small path of travel and in a short time of continuous, uninterrupted travel through the sealingstation 33. - The
outlet ports 71 are shaped to be somewhat smaller than theinlet ports 69. Theseoutlet ports 51 are located on the side of thechannel 67 opposite theinlet ports 69 and are generally aligned with theinlet ports 69. - As will be described in greater detail below, the
outlet ports 71 allow air to escape in a way to maintain pressure in thechannel 67 and in the inflated pillows at a calibrated, desired level without creating over-pressurization in the pillows. - In addition, the air that exists from an
outlet port 71 can be sensed by a pressure transducer 73 (seeFIG. 8 ) to allow for accurate position sensing of the pillows as the pillows move through themachine 11. - The air escaping through the outlet ports is sensed to detect where the pillows are in the machine. These detected outlet port positions are then used as signals for an associated electronic unit to count the number of pillows inflated in a particular run through the machine. This also facilitates being able to stop the movement of the film through the machine, after one production run of a selected number of inflated pillows, at a position which is the right position to start a subsequent production run of a selected number of inflated pillows.
- The upper end of the
inflation tube 59 is formed with a small curvature so as to better follow the path of thefilm 19 as the film is advanced through thefirst transport station 27 and the sealingstation 33. - Details of the construction and mode of operation of the sealing
station 33 are illustrated and will be described with reference toFIGS. 4, 6 and 7. - The sealing
station 33 comprises a sealingroller 75 mounted on ashaft 77 which is in turn mounted for rotation in a bearing assembly attached to themain plate 13. - The sealing
station 33 also comprises a heated sealing element located at the outer end (the right hand end as viewed inFIG. 7 ) of abar 81. Thevery tip 80 of thebar 81 is a ceramic of aluminum silicate to provide an insulation function, and the remainder of thebar 81 is a different material selected for mechanical durability. - The
bar 81 is mounted for sliding motion within asupport 83. - A
spring 85 and anadjustment screw 87 provide a selectable bias force for biasing thebar 81 toward the opposed periphery of theroller 75 so that the film 19 (in the longitudinally extending strip which crosses the inlet ports 69) is pressed in rolling contact with theouter periphery roller 75 and in sliding contact with the end surface of thebar 81 as the first and second film transport stations continuously advance the web offilm 19 through the sealingstation 33. - An
actuator 89 is included in the sealingstation 33 for retracting thebar 81 against the bias ofspring 85 and away from engagement with theroller 75 when thefilm 19 is not being advanced through themachine 11. This facilitates keeping the heating element energized at the proper heating level and out of contact with thefilm 19 during time intervals when themachine 11 is not being used to produce inflated pillow packaging. - Details of the structure, components and sequence of assembly of components of the heated sealing element are shown in the exploded views of
FIGS. 9A-9F . - The heating element disposed at the end of the
bar 81, in a specific embodiment of the present invention, comprises at least oneNichrome wire 70 which runs vertically (as viewed inFIGS. 9A-9G ) along the right hand end of thebar 81. - The
Nichrome wire 70 at this location has a length about the same as the throat width of anoutlet port 69 in thefilm 19, and theNichrome wire 70 is covered by afabric 72 having a Teflon coating on the surface which contacts thefilm 19. The fabric covering 72 helps to form thewire 70 to a preferred shape for engagement with thefilm 19, and the Teflon coating facilitates sliding movement of thefilm 19 with respect to the heated sealing element. - The heated sealing element comprises at least one
Nichrome wire 70, but (as illustrated inFIGS. 9A-9F ) the present invention also encompasses using a plurality of parallel extending and laterally spaced apartNichrome wires 70 for providing multiple seal lines acrossinlet ports 69 of thepillows 65. - As best illustrated in
FIGS. 6 and 7 ,wires - The slitting station 35 (see
FIG. 4 ) includes ablade 95 attached to theinflation tube 59 and positioned to slit theinflation channel 67 in thefilm 19 after theoutlet port 69 of apillow 65 has been sealed at the sealingstation 33. This enables strips of inflated packaging to be removed from themachine 11. - It is an important feature and benefit of the present invention that the components of the
mechanism 25 and the coaction between those components enable a seal to be formed complete and secure in a short path of travel of the film through the sealingstation 33 and in a short period of time and without the need for additional pressing together of the web of film after the sealing station and without the need for additional cooling of the seal across the inlet port after the sealed inlet port moves out of contact with the sealing station. The sealing of the inlet port at the sealing station is performed by applying the heated sealing element directly to and in sliding contact with the web of film and across the inlet port while the air and the inflated pillow is under pressure and as the web of film is continuously and uninterruptedly advanced through themechanism 25 shown inFIG. 4 . - A number of features of the present invention contribute to obtaining this efficient and beneficial sealing result.
- As described above, the outermost tip of the
bar 81 is a ceramic material which functions as an insulator to help confine the heat of the heating element to substantially just the linear area of contact of the fabric covered Nichrome wire with thefilm 19. - The
roller 75 is laterally offset outwardly (as viewed inFIGS. 1-5 ) and is positioned with respect to the pairs of nip rollers 37-39 and 49-51 so as to cause a bump in thefilm 19 at the sealingstation 33. This helps to create a dead zone adjacent theinlet port 69 to be sealed by causing the web offilm 19 to wrap around a part of the peripheral surface of the sealingroller 75 both in a circumferential direction and also in a lateral direction. - Driving the second pair of nip rollers 49-51 at a slightly higher speed than the first pair of nip rollers 37-39 helps to insure that the
film 19 is maintained flat and in substantially pressure sealing engagement with the periphery of the sealingroller 75. - As best shown in
FIG. 5 , the axes of rotation of at least the second set of nip rollers 49-51 are preferably canted at a slight upward (as viewed inFIG. 5 ) angle with respect to the axes of rotation of themain drive gear 47 and the sealingroller 75. - In a specific embodiment of the present invention the axes of rotation of the first set of nip rollers 37-39 are also canted at this same slightly upwardly inclined angle.
- The inclusion and positioning of the outlet ports 71 (see
FIG. 8 ) and the smaller size of these outlet ports contribute to allowing air to escape through the outlet ports in an amount to maintain sufficient pressure in thechannel 67 without permitting over-pressurization in thatchannel 67 or in thepillows 65. - The present invention permits sealing the inlet port at a sealing station by applying a heated sealing element directly to and in sliding contact with the web of film and across the inlet port while the air and the inflated pillow is under pressure and as the web of film is continuously and uninterruptedly advanced through each of the first transport station, inflating station, sealing station, second transport station and slitting station.
- In
FIGS. 1, 2 and 8 of the drawings thepillows 65 are shown in a generally rectangular-shaped pattern. It should be noted, however, that thepillows 65 can be any preformed pattern configuration. The patterns of thepillows 65 can, for example, include preformed seal line elements within the interior of the pillows which permit the pillows to be folded along one or more of the preformed interior seal lines. This in turn permits one pillow to cushion an object in more than one direction when placed within a shipping container. - Score lines (not illustrated in the drawings, but similar to score lines shown in webs of plastic film described in numerous ones of the prior U.S. patents incorporated by reference in this application) permit ready detachment of single ones or groups of inflated pillows from the
film 19 after the pillows are inflated and sealed. - A number of different film compositions (also as noted in U.S. patents incorporated by reference in this application) can be used as the composition material for the web of
film 19. - The machines that are used to preform the patterns on the web of
film 19 include conventional presses which impress multiple pillow patterns (and the related ports and inflation channel) on a strip offilm 19 on each pressing operation. The pattern is formed while there is no inflation pressure anywhere in theweb 19. - The preformed pattern can also be formed by a roller arrangement in which at least one roller is heated and configured to form the desired patterns.
- Pattern forming machines of these kinds are also disclosed in several of the U.S. patents incorporated by reference in this application.
- Such machines for forming preformed patterns in the
film 19 can be associated with themachine 11 shown inFIG. 1 to replace thestorage roll 17 so that the preformed patterns can be preformed continuously at the site where themachine 11 is installed. However, in most cases it is more practical to use astorage roll 17 with preformed patterns than it is to preform the patterns at the job site where themachine 11 is to be used. - A second embodiment of a machine constructed in accordance with the present invention is illustrated in
FIGS. 10-15 of the drawings. This second embodiment is indicated by thegeneral reference numeral 101. - The components and parts of the
machine 101 which correspond to themachine 11 shown inFIGS. 1-9 are indicated by corresponding reference numerals. - The
machine 101 includes a cartridge unit 103 (seeFIG. 12 ) which is mounted on a separate sub-plate orsub-frame 105. Thesub-frame 105 is mounted on the main plate ormain frame 13. This cartridge unit technique permits the components of the entire cartridge unit to be quickly and easily interchanged (as a unit) with another replacement cartridge unit. Individual components of the cartridge unit do not have to be removed and replaced. - In the
machine 101 shown inFIGS. 10-15 , the construction and mounting of thecartridge unit 103 permits the entire cartridge unit to be pulled out of a box and plugged in as a unit at the production site. This cartridge unit permits all of the components of the cartridge unit to be replaced as a unit. It is never necessary, for example, to replace the Nichrome wires as individual elements in the field. Instead, the entire cartridge unit is just pulled out and replaced as a unit with a replacement cartridge unit. - The structure, components and mode of operation of the first
film transport station 27, the secondfilm transport station 29, theinflation station 31, and the slittingstation 35 are the same as the corresponding mechanism, components and mode of operation described above with reference to themachine 11, and will not be reviewed in more specific detail at this point. - The specific structure of the sealing
station 33 of themachine 101 is different from themachine 11 and will be described in more detail below. However, the method of making seals across theinlet ports 69 in themachine 101 is the same as the method ofmachine 11, as will be understood from the description to follow. - One difference between the sealing station structure of the
machine 11 and the sealing station structure of themachine 101 is in the way that the heated sealing element and the sealing wheel are moved apart from one another during those times when the machine is stopped between production runs of inflated pillows. - In the machine 11 (and as illustrated in
FIG. 7 ) the heated sealing element which is mounted on the end of thebar 81 is retracted away from thesealing wheel 75. In themachine 11 theshaft 75 of theheated sealing wheel 75 is held in a fixed position with respect to theframe 13 in all modes of operation of themachine 11. - In the
machine 101 the heated sealing element is held in a fixed position with respect to theframe 13. Therotational shaft 77 of thesealing wheel 75 is mounted for rotation in amovable support bracket 75 so that thesealing wheel 75 is movable toward and away from the heated sealing element. - As best illustrated in
FIG. 13 , thesupport bracket 75 is mounted on arod 82 of anactuator 84. Theactuator 84 is mounted on asupport plate 86, and thesupport plate 86 is mounted on themain plate 13 of themachine 101. - The
actuator 84 extends and retracts therod 82 to move thesealing wheel 75 between the retracted position of therod 82 shown inFIGS. 11 and 15 and the extended position shown inFIGS. 10 and 14 . - In the retracted position illustrated in
FIGS. 11 and 15 thesealing wheel 75 is positioned to let thefilm 19 remain out of contact with the heated sealing element when themachine 101 is not operated in a production run. - In the extended position shown in
FIGS. 10 and 14 thesealing wheel 75 is positioned to engage thefilm 19 and to press thatfilm 19 in sliding contact with the heated sealing element as thefilm 19 is continuously and uninterruptedly advanced through the machine during a production run of inflated pillows. - In the extended position shown in
FIGS. 10 and 14 thesealing wheel 75 is positioned to engage thefilm 19 and to press thatfilm 19 in sliding contact with the heated sealing element as thefilm 19 is continuously and uninterruptedly advanced through the machine during a production run of inflated pillows. - The force with which the
film 19 is engaged in sliding contact with the heated sealing element is determined by selecting the pressure level within theactuator 84. - As best illustrated in
FIGS. 12, 10 , and 14, thecartridge unit 103 comprises aguide block 107 mounted in a fixed position on the sub-plate 105, tworeels 109 and 111, each mounted for rotation on the sub-plate 105, and aguide post 113 mounted on the sub-plate 105. - The
reels 109 and 111 are storage and take-up reels for a strip of coveringfabric 72. Thefabric 72 has a Teflon coating on the side engaged in sliding contact with thefilm 19. - The strip of covering
fabric 72 is trained around aguide post 113 and into theguide slots flanges guide block 107. - The way that the strip of covering
fabric 72 is conveyed from thestorage roller 109, around theguide post 113, through theguide slot 115, over theNichrome wires 70, through theguide slot 117 and onto the reel 111 is best illustrated inFIGS. 10, 11 , 14 and 15. - In a specific embodiment of the
machine 101 the lower reel 111 is driven, through reduction gearing, and by an electric motor (not shown), to pull the strip of coveringfabric 72 across theNichrome wires 70 at a relatively slow speed (a speed considerably slower than a speed at which the web offilm 19 is transported through themachine 101 during a production run), but at a speed fast enough to insure that no part of the coveringfabric 72 is ever in contact with theNichrome wires 70 long enough to permit any bum through of the fabric by theNichrome wires 70. The reel storage of the coveringfabric 72 and the slow movement of the fabric with respect to theNichrome wires 70 during operation of themachine 101 thus insure that the area of the fabric engageable with the Nichrome wires is, in effect, renewed soon enough to prevent any burn through. - As best illustrated in
FIGS. 12 and 15 , the outer tips of theflanges 119 and 120 extend slightly beyond the outer surfaces of theNichrome wires 70. This insures that the coveringfabric 72 is engaged with theNichrome wires 70 only when thesealing wheel 75 is moved to the position shown inFIGS. 10 and 14 during a production run of themachine 101. - The strip of covering
fabric 72 is held out of contact with theNichrome wires 70 when themachine 101 is not being operated in a production run of packaging. - While not illustrated in
FIGS. 10-15 , theNichrome wires 70 are energized bydetachable leads 91 and 93 (as illustrated for themachine 11 inFIGS. 9A-9G ) - The sealing
roller 75 of themachine 101 is laterally offset outwardly in the same way as the sealingroller 75 of themachine 11 so as to cause a bump in thefilm 19 at the sealingstation 33. This helps to create a dead zone adjacent theinlet port 69 to be sealed by causing the web offilm 19 to wrap around a part of the peripheral surface of the sealingroller 75 both in circumferential direction and also in a lateral direction (as described above with reference to the machine 11). - The
machine 101 permits sealing the inlet port at a sealing station by applying a heated sealing element directly to and in sliding contact with the web of film and across the inlet port while the air in an inflated pillow is under pressure and as the web of film is continuously and uninterruptedly advanced through each of the first transport station, inflating station, sealing station, second transport station and slitting station. -
FIG. 16 illustrates amachine 240 for manufacturing a continuous production of pneumatically filled packaging pillows in accordance with another embodiment of the present invention. The strip of flattened preformedfilm material 210 having continuous heat seals 214 definingpillow chambers 216 is compactly wound ontoroll 220 and placed at one end of themachine 240. The preformedfilm material 210 is advanced along a path through themachine 240 and is first fed between a set of tightly spaced niprollers 242. The opening to thecommon inflation channel 218 of the preformed sheet ofmaterial 210 is guided ontoinflation tube 244 at a first station and is pulled further into themachine 240 by a first set ofdrive rollers 246. Thedrive rollers 246, in combination with the closely spaced pair of free spinning idler wheels orrollers 248, provide a direct drive means for advancing the preformedsheet material 210 along theinflation tube 244 in the direction of travel indicated by arrow B and at a rate substantially equal to the rotational speed of thedrive rollers 246. - A seal forming apparatus, generally indicated by
reference arrow 252 inFIG. 16 , is located downstream of the first set ofdrive rollers 246 and defines a second station of themachine 240. Theseal forming apparatus 252, through a combination of light pressure and heat, is effective to form a pair of spaced apart and continuous seals, each seal being formed along opposite sides of theinflation channel 218. The continuous seals formed by the seal forming apparatus are effective to seal off theentrance ports 220 and thereby trap a quantity of pressurized air within eachpillow chamber 216. - Located downstream of the
seal forming apparatus 252 is what is referred to as the take upsection 253. In the embodiment ofFIG. 16 , take upsection 253 comprises the combination of a second set ofdrive rollers 254 and abelt drive assembly 256. The take upsection 253 is effective to (1) take up the slack in the preformedfilm material 210 by keeping thefilm material 210 taut in the lengthwise or longitudinal direction and (2) pull thefilm material 210 through theseal forming apparatus 252. Thebelt drive assembly 256 includes anelastomeric belt 258, preferably of silicone rubber, which loops aroundforward wheel 260 andrearward wheel 262. In the embodiment described herein, only therearward wheel 262 is driven, the forward wheel being free spinning. The second set ofdrive rollers 254 are driven at a higher rate of speed than the first set ofdrive rollers 246. Therearward wheel 262 of the belt drive assembly is preferably driven at an even higher rate of speed than the second set ofdrive rollers 254. The contact pressure between thefilm material 210 and the combination of second set ofdrive rollers 254 and belt drive assembly is light, however, such that there is sufficient drag force on thefilm material 210 to continue advancing it through themachine 240 but not so great a drag force that would otherwise cause thefilm material 210 to separate along the perforations or scorelines 221. The combination ofdrive rollers 254 andbelt drive assembly 256 effectively form a clutch with both thedrive rollers 254 andbelt 258 slipping against thefilm material 210, but at different speeds. - The
inflation tube 244 is further provided with ablade 278 at a third station downstream of theseal forming apparatus 252. Theblade 278 is generally angled and is operative to cut either one of the upper, lower or both layers of the preformedfilm material 210 in the region of thecommon inflation channel 218, thus allowing thecommon inflation channel 218 to separate from thetube 244 so that the strip of adjacent and connected (and now) inflated pillow sections are able to continue to progress forward through themachine 240. Theblade 278 is positioned upstream of the contact point between the second set ofdrive rollers 254 andbelt 258 such that any friction imparted by the blade onto thefilm material 210 is compensated for by the drag force imparted on the preformedfilm material 210 by thedrive rollers 254 andbelt 258. - As an option, the
machine 240 may further include another take uproller 264 positioned downstream of the belt drive assembly 256 (seeFIG. 16 ). The take uproller 264 is driven at a high rate of speed in order to take up the slack in thefilm material 210 after passing through the second set ofdrive rollers 254 andbelt drive assembly 256. Upon exiting the second set ofdrive rollers 254 andbelt drive assembly 256, the now air-filled and sealed pillow sections can then be separated from each other along theperforations 221 using acutter 266 as shown to produce individual air-filled pillows or cushions. Alternatively, the air-filled pillow sections can be kept together as a continuous sheet which can be broken apart into pillows as desired by the end user. -
FIG. 17 illustrates amachine 440 for producing air-filled packaging pillows in a continuous manner from aroll 228 of preformed film material in accordance with an alternate embodiment of the invention. Themachine 440 ofFIG. 17 is substantially identical to themachine 240 ofFIG. 16 with the exception of the take up section. In all other respects, structural elements of themachine 440 ofFIG. 17 common tomachine 240 ofFIG. 16 are indicated by identical reference numerals. Inmachine 440, take upsection 453 includes a pair of opposing rollers orwheels Rollers 454 are free spinning and are used to heat seal the film material at the port openings of each pillow chamber. Therollers 454 are made of a heat conducting material, preferably aluminum, and are heated to a constant temperature or optionally fitted with electrically regulated nichrome heating elements. Therollers 456 are driven and are positioned in light contact withrollers 454 in order to both advance the film material 10 through themachine 440 and drive thefree spinning rollers 454. - While we have illustrated and described the preferred embodiments of our invention, it is to be understood that these are capable of variation and modification, and we therefore do not wish to be limited to the precise details set forth, but desire to avail ourselves of such changes and alterations as fall within the purview of the following claims.
Claims (25)
1. A system for manufacturing air cushions for use as packaging dunnage comprising:
(a) a longitudinally extending plastic film comprising a relatively narrow longitudinally extending channel, at least one row of generally rectangular presealed inflatable chambers each having an unsealed opening into the longitudinally extending channel, and a plurality of laterally extending perforations separating the inflatable chambers; and
(b) an inflation machine for inflating the inflatable chambers of the plastic film, the inflation machine comprising:
a pair of film drive rollers that cause the plastic film to be gripped at or near the narrow longitudinally extending channel and drawn in a continuous and uninterrupted manner through inflation, sealing and slitting mechanisms in a substantially planar path;
wherein the inflation mechanism comprises a source of inflation gas and an air outlet which together cause inflation gas to be injected into the relatively narrow longitudinally extending channel of the plastic film as the plastic film is drawn through the inflation mechanism;
wherein the sealing mechanism comprises an electrically energized heating element that generates heat to be delivered to the inflation side of one or more of the inflatable chambers to seal the unsealed opening and trap the inflation gas within the inflatable chambers as the plastic film is drawn through the sealing mechanism; and
wherein the slitting mechanism comprising a blade that slices open the relatively narrow longitudinally extending channel of the plastic film as the film is drawn through the slitting mechanism.
2. The system of claim 1 wherein the inflation mechanism comprises an elongate member adapted for insertion into the relatively narrow longitudinally extending channel of the plastic film as the film is drawn through the inflation mechanism; and
wherein the blade of the slitting mechanism slices open the relatively narrow longitudinally extending channel of the plastic film to allow the film to disengage from the elongate member as the film is drawn through the slitting mechanism.
3. The system of claim 2 wherein the elongate member has at least one opening for injecting inflation gas from the source of inflation gas into the narrow longitudinally extending channel of the plastic film.
4. The system of claim 1 wherein the inflatable chambers have a periphery defined by three closed sides and an inflation side having the unsealed opening, the inflatable chambers further comprising secondary heat seals within the periphery.
5. The system of claim 1 wherein the laterally extending perforations extend at least partway across the width of the film and separate each chamber or multiple chambers.
6. The system of claim 5 wherein the laterally extending perforations extend the entire width of the film.
7. The system of claim 1 wherein the source of inflation gas comprises a source of pressurized air.
8. A system for manufacturing air cushions for use as packaging dunnage comprising:
(a) a longitudinally extending plastic film comprising a relatively narrow longitudinally extending channel and at least one row of generally rectangular presealed inflatable chambers each having an unsealed opening into the longitudinally extending channel; and
(b) an inflation machine for inflating the inflatable chambers of the plastic film, the inflation machine comprising:
an elongate member adapted for slidable insertion into the narrow longitudinally extending channel of the plastic film,
a pair of film drive rollers that cause the plastic film to be gripped at or near the narrow longitudinally extending channel and drawn in a continuous and uninterrupted manner through inflation, sealing and slitting mechanisms in a substantially planar path,
wherein the inflation mechanism comprises a source of inflation gas and an air outlet which together cause inflation gas to be injected into the inflation side of one or more of the inflatable chambers as the film is drawn through the inflation mechanism;
wherein the sealing mechanism comprises an electrically energized heating element that generates heat to be delivered to the inflation side of one or more of the inflatable air chambers to seal the unsealed opening and trap the inflation gas within the chambers as the film is drawn through the sealing mechanism; and
wherein the slitting mechanism comprising a blade that slices open the relatively narrow longitudinally extending channel of the plastic film to allow the film to disengage from the elongate member as the film is drawn through the slitting mechanism.
9. The system of claim 8 wherein the elongate member has at least one opening for injecting inflation gas from the source of inflation gas into the longitudinally extending channel of the plastic film.
10. The system of claim 8 wherein the plastic film further comprises a plurality of laterally extending perforations separating each chamber or multiple chambers.
11. The system of claim 10 wherein the laterally extending perforations extend the entire width of the film.
12. The system of claim 8 wherein the source of inflation gas comprises a source of pressurized air.
13. Apparatus for inflating a plurality of inflatable chambers in a plastic film having a relatively narrow longitudinally extending channel to form inflated packaging pillows, the apparatus comprising:
a pair of film drive rollers that cause the plastic film to be gripped at or near the relatively narrow longitudinally extending channel and drawn in a continuous and uninterrupted manner through inflation, sealing and slitting mechanisms in a substantially planar path;
wherein the inflation mechanism comprises a source of inflation gas and an air outlet which together cause inflation gas to be injected into the inflatable chambers as the plastic film is drawn through the inflation mechanism;
wherein the sealing mechanism comprises an electrically energized heating element that generates heat to be delivered to seal an unsealed opening of the inflatable chambers and trap the inflation gas within the inflatable chambers as the plastic film is drawn through the sealing mechanism; and
wherein the slitting mechanism comprising a blade that slices open the relatively narrow longitudinally extending channel of the plastic film as the film is drawn through the slitting mechanism.
14. The apparatus of claim 13 wherein the air outlet injects air into the relatively narrow longitudinally extending channel.
15. The apparatus of claim 13 further comprising an elongate member adapted for insertion into the relatively narrow longitudinally extending channel of the plastic film;
wherein the blade of the slitting mechanism slices open the relatively narrow longitudinally extending channel of the plastic film to allow the film to disengage from the elongate member as the film is drawn through the slitting mechanism.
16. The apparatus of claim 13 further comprising an elongate member adapted for insertion into the relatively narrow longitudinally extending channel of the plastic film, wherein the elongate member has at least one opening for injecting inflation gas into the relatively narrow longitudinally extending channel of the plastic film.
17. The apparatus of claim 13 wherein the source of inflation gas is a source of pressurized air.
18. Apparatus for use in inflating a plurality of inflatable chambers in a plastic film having a longitudinally extending channel, the apparatus comprising:
a driving mechanism configured to cause the plastic film to be gripped at or near the longitudinally extending channel and drawn in a continuous and uninterrupted manner in a generally planar path;
an inflation mechanism positioned along the generally planar path comprising a source of inflation gas and an air outlet which together are capable of injecting inflation gas into the inflatable chambers as the plastic film is drawn along the path and through the inflation mechanism;
a sealing mechanism positioned along the generally planar path comprising an electrically energized heating element capable of generating heat to be delivered to seal an unsealed opening of the inflatable chambers and trap the inflation gas within the inflatable chambers as the plastic film is drawn along the path and through the sealing mechanism; and
a slitting mechanism positioned along the generally planar path comprising a blade that is configured to slice open the longitudinally extending channel of the plastic film as the film is drawn along the path and through the slitting mechanism.
19. The apparatus of claim 18 wherein the air outlet is configured to inject air into the longitudinally extending channel.
20. The apparatus of claim 18 further comprising an elongate member adapted for insertion into the longitudinally extending channel of the plastic film;
wherein the blade of the slitting mechanism is configured to slice open the longitudinally extending channel of the plastic film to allow the film to disengage from the elongate member as the film is drawn along the path and through the slitting mechanism.
21. The apparatus of claim 18 further comprising an elongate member adapted for insertion into the longitudinally extending channel of the plastic film, wherein the elongate member has at least one opening capable of injecting inflation gas into the longitudinally extending channel of the plastic film.
22. The apparatus of claim 18 wherein the source of inflation gas is a source of pressurized air.
23. The apparatus of claim 18 wherein the driving mechanism comprises a pair of drive rollers.
24. A system for manufacturing air cushions for use as packaging dunnage comprising:
(a) a longitudinally extending plastic film comprising a relatively narrow longitudinally extending channel, at least one row of generally rectangular presealed inflatable chambers each having an unsealed opening into the longitudinally extending channel, and a plurality of laterally extending perforations separating the inflatable chambers; and
(b) an inflation machine for inflating the inflatable chambers of the plastic film, the inflation machine comprising:
drive rollers that cause the plastic film to be gripped at or near the narrow longitudinally extending channel and drawn in a continuous and uninterrupted manner through inflation, sealing and slitting mechanisms in a substantially planar path;
wherein the inflation mechanism comprises a source of inflation gas and an air outlet which together cause inflation gas to be injected into the relatively narrow longitudinally extending channel of the plastic film as the plastic film is drawn through the inflation mechanism;
wherein the sealing mechanism comprises an electrically energized heating element that generates heat to be delivered to the inflation side of one or more of the inflatable chambers to seal the unsealed opening and trap the inflation gas within the inflatable chambers as the plastic film is drawn through the sealing mechanism; and
wherein the slitting mechanism comprising a blade that slices open the relatively narrow longitudinally extending channel of the plastic film as the film is drawn through the slitting mechanism.
25. A system for manufacturing air cushions for use as packaging dunnage comprising:
(a) a longitudinally extending plastic film comprising a relatively narrow longitudinally extending channel and at least one row of generally rectangular presealed inflatable chambers each having an unsealed opening into the longitudinally extending channel; and
(b) an inflation machine for inflating the inflatable chambers of the plastic film, the inflation machine comprising:
an elongate member adapted for slidable insertion into the narrow longitudinally extending channel of the plastic film,
drive rollers that cause the plastic film to be gripped at or near the narrow longitudinally extending channel and drawn in a continuous and uninterrupted manner through inflation, sealing and slitting mechanisms in a substantially planar path,
wherein the inflation mechanism comprises a source of inflation gas and an air outlet which together cause inflation gas to be injected into the inflation side of one or more of the inflatable chambers as the film is drawn through the inflation mechanism;
wherein the sealing mechanism comprises an electrically energized heating element that generates heat to be delivered to the inflation side of one or more of the inflatable air chambers to seal the unsealed opening and trap the inflation gas within the chambers as the film is drawn through the sealing mechanism; and
wherein the slitting mechanism comprising a blade that slices open the relatively narrow longitudinally extending channel of the plastic film to allow the film to disengage from the elongate member as the film is drawn through the slitting mechanism.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US11/456,648 US20060218876A1 (en) | 1999-03-09 | 2006-07-11 | Apparatus for Inflating and Sealing Pillows in Packaging Cushions |
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US12349799P | 1999-03-09 | 1999-03-09 | |
US09/439,552 US6209286B1 (en) | 1999-03-09 | 1999-11-12 | Machine and method for manufacturing a continuous production of pneumatically filled inflatable packaging pillows |
US09/638,843 US6659150B1 (en) | 2000-08-14 | 2000-08-14 | Apparatus for inflating and sealing air-filled packing cushions |
US10/108,823 US6605169B2 (en) | 2000-08-14 | 2002-03-26 | Method of making air-filled packing cushions |
US10/366,812 US7090912B2 (en) | 1999-03-09 | 2003-02-13 | Film material for air-filled packing cushions |
US10/732,437 US7059097B2 (en) | 1999-03-09 | 2003-12-09 | Apparatus for inflating and sealing air-filled packing cushions |
US18682005A | 2005-07-22 | 2005-07-22 | |
US11/456,648 US20060218876A1 (en) | 1999-03-09 | 2006-07-11 | Apparatus for Inflating and Sealing Pillows in Packaging Cushions |
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US09/638,843 Ceased US6659150B1 (en) | 1999-03-09 | 2000-08-14 | Apparatus for inflating and sealing air-filled packing cushions |
US10/108,820 Expired - Lifetime US6565946B2 (en) | 2000-08-14 | 2002-03-26 | Web of film formed with a pattern of pillows to be inflated and sealed and used in packaging |
US10/108,823 Expired - Lifetime US6605169B2 (en) | 1999-03-09 | 2002-03-26 | Method of making air-filled packing cushions |
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US11/303,092 Expired - Fee Related USRE40288E1 (en) | 1999-03-09 | 2005-12-16 | Apparatus for inflating and sealing air-filled packing cushions |
US11/275,869 Expired - Lifetime US7223462B2 (en) | 1999-03-09 | 2006-02-01 | Film material for air-filled packing cushions |
US11/456,648 Abandoned US20060218876A1 (en) | 1999-03-09 | 2006-07-11 | Apparatus for Inflating and Sealing Pillows in Packaging Cushions |
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US09/638,843 Ceased US6659150B1 (en) | 1999-03-09 | 2000-08-14 | Apparatus for inflating and sealing air-filled packing cushions |
US10/108,820 Expired - Lifetime US6565946B2 (en) | 2000-08-14 | 2002-03-26 | Web of film formed with a pattern of pillows to be inflated and sealed and used in packaging |
US10/108,823 Expired - Lifetime US6605169B2 (en) | 1999-03-09 | 2002-03-26 | Method of making air-filled packing cushions |
US10/366,812 Expired - Lifetime US7090912B2 (en) | 1999-03-09 | 2003-02-13 | Film material for air-filled packing cushions |
US10/732,437 Expired - Lifetime US7059097B2 (en) | 1999-03-09 | 2003-12-09 | Apparatus for inflating and sealing air-filled packing cushions |
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US11/303,092 Expired - Fee Related USRE40288E1 (en) | 1999-03-09 | 2005-12-16 | Apparatus for inflating and sealing air-filled packing cushions |
US11/275,869 Expired - Lifetime US7223462B2 (en) | 1999-03-09 | 2006-02-01 | Film material for air-filled packing cushions |
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US12/620,751 Expired - Fee Related US7832562B2 (en) | 1999-03-09 | 2009-11-18 | Apparatus for inflating and sealing air-filled packing cushions |
US13/208,518 Expired - Fee Related US8323774B2 (en) | 1999-03-09 | 2011-08-12 | Apparatus for inflating and sealing pillows in packaging cushions |
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Cited By (5)
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US20170275036A1 (en) * | 2016-03-28 | 2017-09-28 | Pregis Innovative Packaging Llc | Blade holder for inflation and sealing device |
US10974858B2 (en) * | 2016-03-28 | 2021-04-13 | Pregis Innovative Packaging Llc | Blade holder for inflation and sealing device |
US20210229851A1 (en) * | 2016-03-28 | 2021-07-29 | Pregis Innovative Packaging Llc | Blade holder for inflation and sealing device |
US11691774B2 (en) * | 2016-03-28 | 2023-07-04 | Pregis Innovative Packaging Llc | Blade holder for inflation and sealing device |
US11542086B2 (en) | 2018-08-06 | 2023-01-03 | Better Packages, Inc. | Packaging apparatus for film inflation and method thereof |
Also Published As
Publication number | Publication date |
---|---|
US8323774B2 (en) | 2012-12-04 |
EP1311431A4 (en) | 2007-04-18 |
US6605169B2 (en) | 2003-08-12 |
US20110293864A1 (en) | 2011-12-01 |
WO2002014156A1 (en) | 2002-02-21 |
JP2004505862A (en) | 2004-02-26 |
US20050236295A1 (en) | 2005-10-27 |
US7223462B2 (en) | 2007-05-29 |
USRE40288E1 (en) | 2008-05-06 |
US7832562B2 (en) | 2010-11-16 |
US20040134164A1 (en) | 2004-07-15 |
US20050235600A1 (en) | 2005-10-27 |
US20060257601A1 (en) | 2006-11-16 |
US20020112808A1 (en) | 2002-08-22 |
US9003743B2 (en) | 2015-04-14 |
DE01964572T1 (en) | 2004-05-19 |
US20030118778A1 (en) | 2003-06-26 |
US20060110581A1 (en) | 2006-05-25 |
ES2208144T1 (en) | 2004-06-16 |
US6565946B2 (en) | 2003-05-20 |
US6659150B1 (en) | 2003-12-09 |
US20020108697A1 (en) | 2002-08-15 |
US20090217620A1 (en) | 2009-09-03 |
US7090912B2 (en) | 2006-08-15 |
US7361397B2 (en) | 2008-04-22 |
US7536837B2 (en) | 2009-05-26 |
AU2001285411A1 (en) | 2002-02-25 |
US20050244613A9 (en) | 2005-11-03 |
US7059097B2 (en) | 2006-06-13 |
US20100068430A1 (en) | 2010-03-18 |
EP1311431A1 (en) | 2003-05-21 |
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Legal Events
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AS | Assignment |
Owner name: UNION BANK OF CALIFORNIA, N.A., CALIFORNIA Free format text: SECURITY INTEREST;ASSIGNOR:FREE-FLOW PACKAGING INTERNATIONAL, INC.;REEL/FRAME:019390/0271 Effective date: 20070530 |
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STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |
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AS | Assignment |
Owner name: PREGIS INNOVATIVE PACKAGING LLC, ILLINOIS Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:FREE-FLOW PACKAGING INTERNATIONAL, INC.;REEL/FRAME:048992/0797 Effective date: 20190404 |