US2620939A - Sealing closure for containers - Google Patents

Sealing closure for containers Download PDF

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Publication number
US2620939A
US2620939A US48346A US4834648A US2620939A US 2620939 A US2620939 A US 2620939A US 48346 A US48346 A US 48346A US 4834648 A US4834648 A US 4834648A US 2620939 A US2620939 A US 2620939A
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Prior art keywords
membrane
cap
film
adhesive
sealing
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Expired - Lifetime
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US48346A
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George A Weisgerber
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Johnson and Johnson
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Johnson and Johnson
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D41/00Caps, e.g. crown caps or crown seals, i.e. members having parts arranged for engagement with the external periphery of a neck or wall defining a pouring opening or discharge aperture; Protective cap-like covers for closure members, e.g. decorative covers of metal foil or paper
    • B65D41/02Caps or cap-like covers without lines of weakness, tearing strips, tags, or like opening or removal devices
    • B65D41/04Threaded or like caps or cap-like covers secured by rotation
    • B65D41/0435Threaded or like caps or cap-like covers secured by rotation with separate sealing elements
    • B65D41/045Discs
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/21Circular sheet or circular blank
    • Y10T428/214End closure
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/21Circular sheet or circular blank
    • Y10T428/215Seal, gasket, or packing

Definitions

  • My invention seeks to overcome these and other disadvantages of known seals by providing an improved seal which can readily and economically be attached, which is secure until it is forcibly removed, but yet is readily removable by the user, and which leaves the container clean when removed. It is particularly an object to provide such a seal which is completely effective with glass containers. Other objects and advantages will be apparent in the description and claims.
  • Fig. 1 is an exploded perspective view of a bottle and screw cap embodying one form of my invention
  • Fig. 2 is a section of the cap
  • Fig. 3 vis a perspective of one modified form of a portion of my improved seal
  • Fig. 4 is a perspective Yof a second modified form
  • Fig. 5 is a magnified edge view of a composite seal embodying a third modified form.
  • a container lll preferably of 'dielectric material, especially glass, has the usual opening or mouth l2, in a neck or wall I4 which includes an end surface I6 surrounding the mouth and disposed in a plane. This surface is preferably fiat and relatively broad.
  • the usual cap I8 may be used. It and the neck may be provided with screw threads, or any other known or suitable means for mechanically holding the cap against the end surface I6.
  • the cap is preferably formed of any suitable dielectric material such as any of a wide variety of molded plastics. Any suitable resilient, impervious sealing disk 20, inert to the material to be put in the container is secured in the cap.
  • My improved seal includes, for example, a film 22 of material which will adhere to the container, especially to glass -and is inert with respect to the contents. It also includes a unitary sealing membrane collectively denoted -by 24, inert to the contents and adapted to adhere to the lm 22.
  • a unitary sealing membrane collectively denoted -by 24, inert to the contents and adapted to adhere to the lm 22.
  • the materials of the container, the film 22 and the membrane 24 are so related to each other that the strength of the adhesive bond between the film and the container is less than the internal strength or internal cohesive bond within the lm and less than the strength of the adhesive bond between the nlm and the membrane.
  • the adhesive bonds within the compositeV membrane 24 are also greater than the lm-to-glass bond.
  • the strength of the bond between the film and the glass is such as to permit forcible although leasy lrem-oval of the membrane with a fingernail. This .arrangement .assures that when any adequate attempt is made to remove the seal, the lm leaves the glass cleanly, and neither the membrane nor the lm will split itself. rIhis effectively prevents any bits of membrane or of adhesive film from remaining on the bottle.
  • the bottle can be capped and yclosed in the usual way, the reseal liner 20 preventing leakage as long as the cap is tight.
  • the materials heretofore described are dielectric, and a disk of metal foil is placed in or on the sealing membrane.
  • the film .22 is of heat-sealing or thermo-adhesive material, by which is meant material which becomes adhesive at high temperatures.
  • the film and membrane are placed in position and the cap is screwed on tight.
  • the assembly is then heated in any suitable manner, preferably by placing it in a high frequency dielectric field which rapidly heats the metal disk. This heats the film 22 by conduction until the film becomes adhesive while under the pressure of the cap.
  • the bottle is then removed from the field and upon cooling the nlm is adhered both to the bottle and to the membrane, as described.
  • the membrane may be formed of a heat-sealing resin sheet 26 (herein designated Resin A), which may, if desired, have a somewhat higher softening temperature than the softening temperature of the film 22 (herein designated Resin B) and a sheet of metal foil 28, such as thin aluminum.
  • Resin A heat-sealing resin sheet 26
  • Resin B heat-sealing resin sheet 22
  • metal foil 28 such as thin aluminum.
  • the membrane may be faced on its upper vsurface vby a layer of stiff paper 30 which may be adhered to the foil-in any suitable way. This prevents damage to the foil layer when the cap is screwed on.
  • the strengths of the bonds between the foil and both layers of the membrane exceeds the strength of the film-to-glass bond to prevent splitting of the membrane during removal of the seal.
  • the adhesive film is schematically represented. It may be formed ,and placed in a variety of ways. It may be a Washer .22 of cast film, as indicated in Fig. l, 'or 'it may ybe a disk 22a of cast film as indicated in Fig. 3. Preferably it is a dried heat-sealing deposit 22h from a solution of the adhesive applied beforehand to the bottle (Fig. 4).
  • AI may form a sandwich of the two sheets 26 and 30 and ⁇ the inner layer 28 of metal foil.
  • I apply an adhesive nlm A222e of heatsea1 ing resin B.
  • This film may be applied by solvent coating, by heating .and pressing a cast film or in any suitable way.
  • the film 22e is distinctively colored to facilitate assembly right side up.
  • I may grind the surface lf3 is increase the adhesion of the film to the glass.
  • I ⁇ may use polyvinyl butyral or any wide variety of known vinyl resins, with or without a suitable plasticizer, the molecular weight of the vinyl polymer and the kind and proportion of the plasticizer being regulated to give the desired thermoplastic and adhesive properties, as known in the art.
  • I may use a film deposited by evaporating a l to 20% solution of VMCH in methyl ethyl ketone or other suitable solvent.
  • a coating solution which may be applied to the end surface I6 by roller coating with subsequent evaporation of the solvent, such a solution consisting of any of the following:
  • Example I Per cent VMCH 1.7 VYHH 11.0 Paraplex G-25 (plasticizer) 1.3 Methyl ethyl ketone 86.0
  • Example III Per cent VMCH 3.0 Saran F--120 (200 centipoises) 8.0 Paraplex (J1-25 1.2 Methyl ethyl ketone 87.8
  • Example IV Per cent VYHH '6.0 Saran F-l20 (200 centipoises) 6.0 Paraplex ACir-25 '0.5
  • VMCH is the vinyl resin identified above
  • VYHH is the trade ydesignation of a Vinyl resin manufactured by Carbide and Carbon Chemicals vCorpora-tion and said -to Lbe a thermoplastic copolymer of vinyl chloride and vinyl acetate having approximately to 88% vinyl chloride and an average lmolecular weight of 10,000 (Staudinger viscosity method).
  • Paraplex G-25 is a trade name applied lby Resinous Products and Chemical Company, Philadelphia, Pennsylvania, to a plasticizer identified by them only as -a resinous polyester.
  • Saran is the generic name for a series of polymers -and copolymers of vinylidene chloride usually with vinyl chloride with or without acrylonitrile.
  • Saran F-.120 is the trade designation applied by Dow Chemical Company, Midland, Michigan, to a copolymer of vinylidene chloride and acrylonitrile vhaving in a 20% solution in methyl ethyl ketone a viscosity of from 40 to 8000 centipoises (Brookfield 25 C).
  • A-container having an opening and comprising in combination an end surface surrounding the opening, a wall surrounding the end surface, a cap, means on the cap and wall adapted to cooperate to urge the cap toward the end surface, and a sealing membrane for closing the opening, the membrane including a heat-sealing adhesive film in contact with the end surface and an electrically conductive layer in thermal contact with the adhesive film.
  • a container having an opening and com prising in combination an end surface surrounding the opening, a wall surrounding the end surface, a cap, means Aon the cap and wall adapted to cooperate to urge the cap toward the -end'surcooperate to urge the cap toward the end surface, 10
  • the membrane including a heat sealing adhesive lm in contact with the end surface, said a-dhesive film having a stronger bond to the membrane than to the end surface, and an electrically conductive layer in thermal contact with the adhesive lm.
  • a glass container having an opening and comprising in combination an end surface surrounding the opening, a Wall surrounding the end surface, a cap, means on the cap and wall adapted to cooperate to urge the cap toward the end surface, a sealing membrane for closing the opening, the membrane including heat sealing adhesive lm in contact with the end surface,
  • said adhesive lm having internal strength greater than the strength of the adhesive bond between the lm and the container, and the adhesive bond between the lm and the membrane being greater than the strength of the adhesive bond between the film and the container, and a metal sheet in thermal contact with the adhesive film.

Description

De@- 9 3952 G. A. wElsGERBER 2,(,520939 SEALING CLOSURE FOR CONTAINERS Filed Sept. 9, 1948 lai. T1 -5- 50 Msi/1L Patented Dec. 9, 1952 SEALING CLOSURE FOR CONTAINERS George A. Weisgerber, Havertown, Pa., assigner to Johnson & Johnson, a corporation of New Jersey Application September 9, 1948, Serial No. 48,346
4 Claims. -(Cl. 215-40) This invention relates to -readily removable sealing closures for containers. It is especially useful for glass bottles containing lotions, medicaments or chemicals Where it is important to prevent leakage in transit or to prevent substitution or adulteration. Therefore the invention will be described, for illustration only, as applied to such use.
It is customary to pack liquids in bottles hav- -ing a screw cap lined with a resilient and impervious disk or gasket which seals the bottle when the cap is screwed on. It has also been proposed to prevent tampering and leakage in transit and the like by sealing the bottle with a diaphragm or memb-rane adhered to the mouth of the bottle in addition t-o the cap. When the bottle is first opened the membrane is broken or removed and thereafter the bottle is closed by screwing von the cap, relying on the resilient disk which is then called a re-sealing disk. Such seals that have come to my attention have been unsatisfactory in several respects, particularly in the case of glass bottles containing oils or medicaments vfor personal use, for example, because the sealing membrane was difficult to remove, or because bits of the membrane or adhesive yor both adhered to the bottle, making it unsightly and creating suspicions of uncleanliness.
My invention seeks to overcome these and other disadvantages of known seals by providing an improved seal which can readily and economically be attached, which is secure until it is forcibly removed, but yet is readily removable by the user, and which leaves the container clean when removed. It is particularly an object to provide such a seal which is completely effective with glass containers. Other objects and advantages will be apparent in the description and claims.
In the drawings:
Fig. 1 is an exploded perspective view of a bottle and screw cap embodying one form of my invention;
Fig. 2 is a section of the cap;
Fig. 3 vis a perspective of one modified form of a portion of my improved seal;
Fig. 4 is a perspective Yof a second modified form; and
Fig. 5 is a magnified edge view of a composite seal embodying a third modified form.
A container lll, preferably of 'dielectric material, especially glass, has the usual opening or mouth l2, in a neck or wall I4 which includes an end surface I6 surrounding the mouth and disposed in a plane. This surface is preferably fiat and relatively broad. The usual cap I8 may be used. It and the neck may be provided with screw threads, or any other known or suitable means for mechanically holding the cap against the end surface I6. The cap is preferably formed of any suitable dielectric material such as any of a wide variety of molded plastics. Any suitable resilient, impervious sealing disk 20, inert to the material to be put in the container is secured in the cap.
My improved seal includes, for example, a film 22 of material which will adhere to the container, especially to glass -and is inert with respect to the contents. It also includes a unitary sealing membrane collectively denoted -by 24, inert to the contents and adapted to adhere to the lm 22. When the cap is screwed on and the adhesive film is -activated the membrane is sealed to the bottle and the cap can become loose or can be removed, leaving the bottle sealed. This prevents leakage in transit, and serves to detect opening of t-he bottle by unauthorized persons. To facilitate detection the membrane may be provided with the bottlers signature, and an adhesive is used which, when the seal is once removed, cannot be readily resealed to the bottle.
The materials of the container, the film 22 and the membrane 24 are so related to each other that the strength of the adhesive bond between the film and the container is less than the internal strength or internal cohesive bond within the lm and less than the strength of the adhesive bond between the nlm and the membrane. The adhesive bonds within the compositeV membrane 24 are also greater than the lm-to-glass bond. Also the strength of the bond between the film and the glass is such as to permit forcible although leasy lrem-oval of the membrane with a fingernail. This .arrangement .assures that when any adequate attempt is made to remove the seal, the lm leaves the glass cleanly, and neither the membrane nor the lm will split itself. rIhis effectively prevents any bits of membrane or of adhesive film from remaining on the bottle.
When the sealing membrane and film have thus been removed and discarded, the bottle can be capped and yclosed in the usual way, the reseal liner 20 preventing leakage as long as the cap is tight.
The results described above can be effected in a simple and economical manner which can be performed quickly on a production line.
Preferably all of the materials heretofore described are dielectric, and a disk of metal foil is placed in or on the sealing membrane. The film .22 is of heat-sealing or thermo-adhesive material, by which is meant material which becomes adhesive at high temperatures. The film and membrane are placed in position and the cap is screwed on tight. The assembly is then heated in any suitable manner, preferably by placing it in a high frequency dielectric field which rapidly heats the metal disk. This heats the film 22 by conduction until the film becomes adhesive while under the pressure of the cap. The bottle is then removed from the field and upon cooling the nlm is adhered both to the bottle and to the membrane, as described.
The membrane may be formed of a heat-sealing resin sheet 26 (herein designated Resin A), which may, if desired, have a somewhat higher softening temperature than the softening temperature of the film 22 (herein designated Resin B) and a sheet of metal foil 28, such as thin aluminum. These layers are sealed into a'unitary assembly in any suitable known way as by solvent spreading the sheet 216 onto the foil te secure adhesion. The high softening temperature of the sheet 26 prevents loosening the bond ibetWeen that sheet and the metal foil under the relatively low temperature attained during .the sealing operation, Vbut permits the sheet to .be adhered to the metal at .a vhigher temperature when the membrane is manufactured. 'The membrane may be faced on its upper vsurface vby a layer of stiff paper 30 which may be adhered to the foil-in any suitable way. This prevents damage to the foil layer when the cap is screwed on. The strengths of the bonds between the foil and both layers of the membrane exceeds the strength of the film-to-glass bond to prevent splitting of the membrane during removal of the seal.
In Fig. 1 the adhesive film is schematically represented. It may be formed ,and placed in a variety of ways. It may be a Washer .22 of cast film, as indicated in Fig. l, 'or 'it may ybe a disk 22a of cast film as indicated in Fig. 3. Preferably it is a dried heat-sealing deposit 22h from a solution of the adhesive applied beforehand to the bottle (Fig. 4).
In still another form of the invention as indicated in Fig. 5, AI may form a sandwich of the two sheets 26 and 30 and `the inner layer 28 of metal foil. To the lower surfaceof this menibrane I apply an adhesive nlm A222e of heatsea1 ing resin B. This film may be applied by solvent coating, by heating .and pressing a cast film or in any suitable way. .Preferably the film 22e is distinctively colored to facilitate assembly right side up. In any case and especially where the modification of Figs. l, 3 or 5 is used I may grind the surface lf3 is increase the adhesion of the film to the glass.
As materials for Resin A, I `may use polyvinyl butyral or any wide variety of known vinyl resins, with or without a suitable plasticizer, the molecular weight of the vinyl polymer and the kind and proportion of the plasticizer being regulated to give the desired thermoplastic and adhesive properties, as known in the art. In particular, I may use a resin designated in the trade as VMCH and manufactured by Carbide and Carbon Chemicals Corporation, New York, New York and said to be a copolymer of vinyl vchloride .and vinyl acetate having approximately 85% to 88% vinyl chloride and being copolymerized with approximately 1% of malec acid. I may use a film deposited by evaporating a l to 20% solution of VMCH in methyl ethyl ketone or other suitable solvent.
For the heat-sealing film or resin B, I may use as in Fig. 4 a coating solution, which may be applied to the end surface I6 by roller coating with subsequent evaporation of the solvent, such a solution consisting of any of the following:
Example I Per cent VMCH 1.7 VYHH 11.0 Paraplex G-25 (plasticizer) 1.3 Methyl ethyl ketone 86.0
Example II Per cent VMCH 3.0 VYHH 12.0 Dioctyl phthalate (plasticizer) 1.5 Methyl ethyl ketone 83.5
Example III Per cent VMCH 3.0 Saran F--120 (200 centipoises) 8.0 Paraplex (J1-25 1.2 Methyl ethyl ketone 87.8
Example IV Per cent VYHH '6.0 Saran F-l20 (200 centipoises) 6.0 Paraplex ACir-25 '0.5
Methyl ethyl ketone 87.5
vExample V Per cent Polyvinyl butyral (high viscosity) 12.0 Dioctyl phthalate 1.5 Ethanol 86.5
In these examples, VMCH is the vinyl resin identified above, VYHH is the trade ydesignation of a Vinyl resin manufactured by Carbide and Carbon Chemicals vCorpora-tion and said -to Lbe a thermoplastic copolymer of vinyl chloride and vinyl acetate having approximately to 88% vinyl chloride and an average lmolecular weight of 10,000 (Staudinger viscosity method). Paraplex G-25 is a trade name applied lby Resinous Products and Chemical Company, Philadelphia, Pennsylvania, to a plasticizer identified by them only as -a resinous polyester. Saran is the generic name for a series of polymers -and copolymers of vinylidene chloride usually with vinyl chloride with or without acrylonitrile. Saran F-.120 is the trade designation applied by Dow Chemical Company, Midland, Michigan, to a copolymer of vinylidene chloride and acrylonitrile vhaving in a 20% solution in methyl ethyl ketone a viscosity of from 40 to 8000 centipoises (Brookfield 25 C).
rThe invention claimed is:
1. A-container having an opening and comprising in combination an end surface surrounding the opening, a wall surrounding the end surface, a cap, means on the cap and wall adapted to cooperate to urge the cap toward the end surface, and a sealing membrane for closing the opening, the membrane including a heat-sealing adhesive film in contact with the end surface and an electrically conductive layer in thermal contact with the adhesive film.
.2. A container having an opening and com prising in combination an end surface surrounding the opening, a wall surrounding the end surface, a cap, means Aon the cap and wall adapted to cooperate to urge the cap toward the -end'surcooperate to urge the cap toward the end surface, 10
and a sealing membrane for closing the opening, the membrane including a heat sealing adhesive lm in contact with the end surface, said a-dhesive film having a stronger bond to the membrane than to the end surface, and an electrically conductive layer in thermal contact with the adhesive lm.
4. A glass container having an opening and comprising in combination an end surface surrounding the opening, a Wall surrounding the end surface, a cap, means on the cap and wall adapted to cooperate to urge the cap toward the end surface, a sealing membrane for closing the opening, the membrane including heat sealing adhesive lm in contact with the end surface,
said adhesive lm having internal strength greater than the strength of the adhesive bond between the lm and the container, and the adhesive bond between the lm and the membrane being greater than the strength of the adhesive bond between the film and the container, and a metal sheet in thermal contact with the adhesive film.
GEORGE A. WEISGERBER.
REFERENCES CITED The following references are of record in the iile of this patent:
UNITED STATES PATENTS Number Name Date 1,304,304 Garhart May 20, 1919 1,382,051 Beavers et a1 June 21, 1921 1,603,057 Wright Oct. 12, 1926 1,731,195 Ellis Oct. 8, 1929 1,916,977 Gutmann July 4, 1933 1,966,273 Waring July 10, 1934 2,004,079 McManus June 4, 1935 2,013,119 Warth Sept. 3, 1935 2,026,937 Eisen Jan. 7, 1936 2,077,992 Eisen Apr. 20, 1937 2,233,160 Eisen Feb. 25, 1941 2,326,722 Burkardt Aug. 10, 1943 FOREIGN PATENTS Number Country Date 367,366 Great Britain Feb. 18, 1932
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US20090308868A1 (en) * 2007-03-13 2009-12-17 Benoit Portier Flow limiter production process
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US7766178B2 (en) 2001-12-21 2010-08-03 Rexam Medical Packaging Inc. Closure for a retort processed container having a peelable seal
US7780024B1 (en) 2005-07-14 2010-08-24 Rexam Closures And Containers Inc. Self peel flick-it seal for an opening in a container neck
US7798359B1 (en) 2004-08-17 2010-09-21 Momar Industries LLC Heat-sealed, peelable lidding membrane for retort packaging
US8100277B1 (en) 2005-07-14 2012-01-24 Rexam Closures And Containers Inc. Peelable seal for an opening in a container neck
US8251236B1 (en) 2007-11-02 2012-08-28 Berry Plastics Corporation Closure with lifting mechanism
US20220169427A1 (en) * 2020-12-01 2022-06-02 Jeffrey Julian Bottle or container seal

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US2946471A (en) * 1957-11-04 1960-07-26 Owens Illinois Glass Co Venting closure cap
US2937481A (en) * 1958-06-19 1960-05-24 Fr Corp Method of producing a package
US3067552A (en) * 1958-12-08 1962-12-11 Owens Illinois Glass Co Glass packaging
US3165431A (en) * 1960-09-23 1965-01-12 Eastman Kodak Co Record card structure
DE1297520B (en) * 1964-12-09 1969-06-12 United Glass Ltd Method and device for the tight closing of containers made of non-metallic material with a metal foil
US3266625A (en) * 1965-07-08 1966-08-16 H V Hardman Co Inc Package for reactive multi-component compositions
US3342326A (en) * 1965-10-22 1967-09-19 Johnson & Johnson Sterile flexible package
US3475243A (en) * 1966-03-28 1969-10-28 Owens Illinois Inc Container sealing method
US3413743A (en) * 1967-02-08 1968-12-03 Armstrong Cork Co Low profile embossed-debossed printing on a closure
US3625785A (en) * 1968-04-10 1971-12-07 Tetra Pak Ab Method of producing a mechanically stiff gastight packaging container
US3581690A (en) * 1968-12-16 1971-06-01 Zapata Industries Inc Crown type closure with double removable liner unit enclosing trapped indicia and method of manufacture
US3819460A (en) * 1969-09-03 1974-06-25 J Dukess Material for cap liner
US3928109A (en) * 1972-09-11 1975-12-23 Phoenix Closures Inc Method of assembling and bonding a laminated liner within a closure member
US3909326A (en) * 1973-02-26 1975-09-30 Kraftco Corp Method for applying heat sealable membrane
USB337023I5 (en) * 1973-03-01 1976-03-30
US4013188A (en) * 1973-03-01 1977-03-22 General Foods Corporation Induction sealed closure
US4015401A (en) * 1973-03-07 1977-04-05 American Hospital Supply Corporation Method of forming closure system for medical liquid container
US4109815A (en) * 1976-12-08 1978-08-29 Aluminum Company Of America Induction heat sealed containers
US4180961A (en) * 1976-12-08 1980-01-01 Aluminum Company Of America Induction heat sealed containers
JPS5426597B1 (en) * 1977-05-04 1979-09-05
US4258529A (en) * 1978-07-21 1981-03-31 Phillips Petroleum Company Method of sealing a container
FR2444863A1 (en) * 1978-12-18 1980-07-18 Manuf Gle Joints SEAL FOR CONTAINERS WITH REMOVABLE LID
US4280653A (en) * 1979-10-01 1981-07-28 Boise Cascade Corporation Composite container including a peelable membrane closure member, and method
US4638134A (en) * 1981-02-07 1987-01-20 Deutsche Gesellschaft Device for evacuating, filling and closing final storage containers for radioactive materials
FR2510073A1 (en) * 1981-07-27 1983-01-28 Lincrusta Container mouth seal of film anchored by expandable adhesive - ensuring complete seal which is removable but not reusable
US4588465A (en) * 1983-02-04 1986-05-13 Minnesota Mining And Manufacturing Company Method for forming a sealed container
US4650082A (en) * 1983-02-04 1987-03-17 Minnesota Mining And Manufacturing Company Cap having a liner with embossed indicia
USRE33764E (en) * 1983-06-24 1991-12-10 Press-on cap and seal
US4576297A (en) * 1983-11-21 1986-03-18 Minnesota Mining And Manufacturing Company Tamper resistant closure
US4773552A (en) * 1986-11-03 1988-09-27 Bodenseewerk Perkin-Elmer & Co., Gmbh Closure for sample bottles
US4771903A (en) * 1986-11-14 1988-09-20 Leon Levene Glass container sealing method
US5433992A (en) * 1987-09-09 1995-07-18 Stanpac Inc. Sealing member for a container
US5514442A (en) * 1987-09-09 1996-05-07 Stanpac, Inc. Sealing member for a container
US5004111A (en) * 1989-02-27 1991-04-02 Minnesota Mining & Manufacturing Company Internally delaminating tabbed innerseal for a container and method of applying
US5012946A (en) * 1989-02-27 1991-05-07 Minnesota Mining & Manufacturing Company Innerseal for a container and method of applying
US5226281A (en) * 1989-02-27 1993-07-13 Minnesota Mining And Manufacturing Company Z-tab innerseal for a container and method of application
US4934544A (en) * 1989-02-27 1990-06-19 Minnesota Mining And Manufacturing Company Z-tab innerseal for a container and method of application
US5560989A (en) * 1992-06-05 1996-10-01 Minnesota Mining And Manufacturing Company Multilayer innerseal facing
US5712042A (en) * 1995-04-17 1998-01-27 Kerr Group Inc. Second seal for closure liners
US20040065977A1 (en) * 2001-01-12 2004-04-08 Pascale Bron Closure device and container equipped with same
US7766178B2 (en) 2001-12-21 2010-08-03 Rexam Medical Packaging Inc. Closure for a retort processed container having a peelable seal
US7644902B1 (en) 2003-05-31 2010-01-12 Rexam Medical Packaging Inc. Apparatus for producing a retort thermal processed container with a peelable seal
US7798359B1 (en) 2004-08-17 2010-09-21 Momar Industries LLC Heat-sealed, peelable lidding membrane for retort packaging
US8100277B1 (en) 2005-07-14 2012-01-24 Rexam Closures And Containers Inc. Peelable seal for an opening in a container neck
US7780024B1 (en) 2005-07-14 2010-08-24 Rexam Closures And Containers Inc. Self peel flick-it seal for an opening in a container neck
US20100009162A1 (en) * 2006-06-28 2010-01-14 Alfelder Kunststoffwerke Herm. Meyer Gmbh Sealing insert for container closures
DE102006030116B3 (en) * 2006-06-28 2007-08-23 Alfelder Kunststoffwerke Herm. Meyer Gmbh Sealing insert for container closures, has support layer, transparent lamination film and adhesive layer, which is joined lamination film to support layer
WO2008000673A1 (en) * 2006-06-28 2008-01-03 Alfelder Kunststoffwerke Herm. Meyer Gmbh Sealing insert for container closures
US7850033B2 (en) * 2006-11-28 2010-12-14 Selig Sealing Products, Inc. Synthetic two-piece induction seal products
US20080121605A1 (en) * 2006-11-28 2008-05-29 Illinois Tool Works Inc. Synthetic two piece induction seal products
US20080197099A1 (en) * 2007-02-20 2008-08-21 Adam Pawlick Non-removable closure
US8113367B2 (en) * 2007-02-20 2012-02-14 Con Agra Foods RDM, Inc. Non-removable closure having a dispensing aperture extending therethrough
US20090308868A1 (en) * 2007-03-13 2009-12-17 Benoit Portier Flow limiter production process
DE102007022935B4 (en) * 2007-05-14 2009-04-30 Alfelder Kunststoffwerke Herm. Meyer Gmbh Sealing insert for container closures
DE102007022935A1 (en) * 2007-05-14 2008-11-20 Alfelder Kunststoffwerke Herm. Meyer Gmbh Sealing insert for container closure i.e. container lid, has film layer e.g. polyolefin, laid on carrier layer that consists of extruded foam material, where film layer is dyed and side of carrier layer is provided with another film layer
US8251236B1 (en) 2007-11-02 2012-08-28 Berry Plastics Corporation Closure with lifting mechanism
US8650839B1 (en) 2007-11-02 2014-02-18 Berry Plastics Corporation Closure with lifting mechanism
US20220169427A1 (en) * 2020-12-01 2022-06-02 Jeffrey Julian Bottle or container seal

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