US3915301A - Covered tubular package of glass roving and method of making - Google Patents
Covered tubular package of glass roving and method of making Download PDFInfo
- Publication number
- US3915301A US3915301A US376080A US37608073A US3915301A US 3915301 A US3915301 A US 3915301A US 376080 A US376080 A US 376080A US 37608073 A US37608073 A US 37608073A US 3915301 A US3915301 A US 3915301A
- Authority
- US
- United States
- Prior art keywords
- roving
- package
- covering
- tube
- heat
- 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.)
- Expired - Lifetime
Links
Images
Classifications
-
- 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
- B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
- B65D75/002—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers in shrink films
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B53/00—Shrinking wrappers, containers, or container covers during or after packaging
- B65B53/02—Shrinking wrappers, containers, or container covers during or after packaging by heat
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H49/00—Unwinding or paying-out filamentary material; Supporting, storing or transporting packages from which filamentary material is to be withdrawn or paid-out
- B65H49/02—Methods or apparatus in which packages do not rotate
- B65H49/04—Package-supporting devices
- B65H49/06—Package-supporting devices for a single operative package
- B65H49/08—Package-supporting devices for a single operative package enclosing the package
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H55/00—Wound packages of filamentary material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/30—Handled filamentary material
- B65H2701/31—Textiles threads or artificial strands of filaments
- B65H2701/312—Fibreglass strands
Definitions
- the heat shrunk film also 58 Field of Search 206/389, 392, 410, 497, g 23:2 gfig f g gfjiifi gf 206/45.33, 409; 229/DIG. 12; 242/170, 171, withdrawn from k b th 168 159 pac age ere y preven mg e (30118 from slumping together and becomlng entangled.
- the plastic covering is provided with an opening at [56] References Cited one end thereof which acts as a guide for the filaments UNITED STATES PATENTS as they are withdrawn from the package. 2,035,930 3/1936 Strong 242/171 2,720,309 10 1955 KimbaIL... 3 Claims, S DraWmg Figures 2,878,628 3/1959 Curry 229/DIG. 12
- This invention relates generally to the packaging of filamentary material, particularly strands or rovings of continuous glass fibers, for shipping, handling, and further processing.
- Continuous glass filaments are made by flowing molten glass through small orifices in a bushing to form streams of molten glass, attenuating the glass streams into filaments, gathering a plurality of these filaments into a strand or roving, and winding the strand or roving onto a revolving drum.
- the attenuating force is provided by the revolving drum which also serves to coil the filaments into a transportable package.
- a traverse mechanism is used to move the strand or roving back and forth along the length of the pulling drum to produce a generally tubularly shaped body of coiled filaments in which the coiled filaments are superimposed over each other in layers.
- a sizing is usually applied to the filaments as they are formed to give integrity to the strand or roving, and to prevent abrasion of the filaments as they are coiled on the drum.
- the tubular body of filaments reaches a generally predetermined diameter it is removed from the drum and prepared for shipment to processors.
- the tension that is built up between the layers of filaments during the winding is sufficient to make the package self-supporting.
- Free ends of the rov- 7 ing are provided both within the interior of the tubular package and on the exterior surface. Either free end can be pulled to remove roving from the package.
- the processor prefers to withdraw the roving by pulling on the interior free end. This method of withdrawal does not require removal of the package from its container, does not result in ballooning of the strand as it unwinds, and does not result in abrasion of the roving such as occurs when the exterior end is pulled over the edge of the package.
- a further feature of the invention results because the heat shrunk plastic film supports the outer coils of filaments as the package is unwound.
- the coils in the outer layers are held in their coiled relationship as the roving or strand is withdrawn thereby preventing them from slumping or collapsing to the supporting surface and becoming entangled.
- this invention enables the processor of the roving or strand to completely unwind the package, or to transfer from one package to another, without disrupting his operation or scrapping any of the filaments.
- a still further feature of the invention results when the shrinkage of the resinous film is controlled to produce a substantially circular opening in the film at one end of the package.
- This opening serves as a guide for the roving or strand as it is withdrawn from the package. Under the proper conditions the opening is located concentric with the tubular textile package, and causes the roving to be pulled at least partially radially inward as it is being withdrawn. When the roving is withdrawn in at least a partially radial direction it does not rub or abrade adjacent coils of filaments on the interior surface of the package.
- This opening or guide also cooperates in improving the runout and transfer characteristics of the package.
- FIG. 1 is an isometric view of a cylindrical package of coiled continuous glass filaments
- FIG. 2 is an isometric view of the package of filaments of FIG. 1 encased in a heat shrunk plastic sheet material;
- FIG. 3 is a sectional view taken along the line 3-3 of FIG. 2 with a portion of the film broken away to show both ends of the filaments more clearly;
- FIG. 4 is a schematic view of apparatus used for encasing a package of coiled filaments in a heat shrunk plastic film in accordance with the present invention.
- FIG. 5 is an elevational view of a heat shrinkable plastic bag which is used to encase the package of FIG. 1; the bag has been flattened along a diameter to more clearly show the curvature of its base.
- the package of glass filaments shown in FIG. 1 consists of a continuous glass roving wound in successive layers of coils to form a generally cylindrical tubular shape.
- the continous roving has a free end 12 on the exterior of the wound package 10, and an internally exposed free end 14 which can be pulled to unwind the package from the inside.
- the package 10 has generally parallel inner l6 and outer l8 cylindrical surfaces.
- the roving can be wound in successive layers of equal length, with the roving in each layer being in side-by-side relationship, to provide a package having generally flat annular end surfaces perpendicular to the inner and outer surfaces.
- This square ended cylindrical package is a particularly economical and otherwise suitable configuration for the packaging of continuous glass fibers, especially glass rovings used in the reinforcement of plastics.
- some coiled packages have an outer surface having a gradual taper in one or both axial directions.
- the inner surface may also have a slight draft to facilitate removal from the winding drum, etc.
- the ends are tapered to reduce sloughing of the outer coils in the package end. It is understood that the present invention is applicable to those additional package configurations, and the term generally cylindircal, as hereinafter used, is meant to include these slightly tapered surfaces.
- FIGS. 2 and 3 the roving package 10 is shown encased in a protective covering 20 of a heat shrunk plastic sheet or film.
- the covering consists of a cylindrical trunk portion 22 and end portions 24 and 26.
- One end portion 26 of the covering 20 is continuous across the end of the roving package; the other end portion 24 extends radially inward from the trunk 22 and terminates in a circular opening or aperature 30.
- the opening 30 is smaller in diameter than the inner cylindrical surface 16 of the package. Therefore, the covering 20 fully protects the package ends while the opening 30 serves as a guide for the roving as it is withdrawn; a feature to be discussed later.
- the covering 20 is formed from a heat shrinkable plastic material.
- Heat shrinkable films are stretched during their manufacture to produce a strained orientation of the molecules. When cooled the film retains its strained condition; but upon reheating the molecules revert to their natural orientation causing the film to shrink.
- Such films find wide use in packaging, and include polyethylene, polypropolene, polybutylene, polyvinyl chloride, polyvinylidene chloride, polystyrene, polyacrylates, linear polyester, and polyarnides.
- This film is a bi-axially oriented, cross linked polyolefin marketed by the Cryovac Division of W. R. Grace Company under the designation of L900 film. It was found that this film does not stick to itself as it is being shrunk. Consequently, this film does not result in wrinkles in the covering. Such wrinkles, which may result if care is not exercised in using other films, bite into the glass filaments in the package and may cause abrasion of the filaments. Furthermore this film provides a more uniform shrinkage and facilitates forming a smooth, snag free opening 30 in the covering.
- FIG. 4 is shown schematically a method for applying the covering 20 to the wound package 10.
- a seamless bag 40 of the shrinkable film is placed over the end of the roving package.
- the package is then placed on a coveyor 50, either in the horizontal position, as shown, or in an upright position, and passed through'an oven 52.
- the package 10 is conveyed horizontally as shown in FIG. 4, it is rotated slowly to insure a uniform shrinkage of the film.
- Heat for shrinking the film can be provided by any suitable means such as the electrical resistance heaters 54 shown.
- the package cooled and placed in a carton or on a pallet for shipping.
- the film is shown in FIG. 4 in the form of a bag 40, the film can be provided in the form of a tubular sleeve open at both ends.
- the bag form is preferred because it is more readily aligned on the package, and also because it produces a package with a closed end 26 as shown in FIG. 3. It is foreseen that there may be situations in which the processor prefers a package with an opening 30 in both ends. In those cases, a tubular form of plastic material could be used.
- the bag or sleeve' will largelybe determined by the type of film and the particular application for which it is us'e d.
- the roving package of FIG. 1 maybe approximately 32 inches in circumference and inches in length.
- the diameter of the inner surface 16 of the package may be approximately6% inches.
- Successful trials have been conducted by encasing such a package in a heat shrinkable polyolefin film which was 2.2 to 2.6 mils thick before shrinkage.
- the film was supplied in the form of a bag having a circumference of 34 inches and an overall length of approximately 22 inches.
- the bag 40 When flattened along one diameter, as shown in FIG. 5, the bag 40 has a curved base'with a radius r of approximately 11% inches.
- the film has been assured to be in the range of 4 to 5 mils thick along the trunk portion 22 and as high as 15 to mils thick in the open end region 24.
- the shrinkage was controlled to produce an opening'30 having a diameter between 3 and 5% inches. It has been observed that exposure of the film to 400 F. for about 20 seconds will produce the desired shrinkage.
- the heat shrunk covering 20 protects the glass filaments from becoming abraded when the roving package comes in contact with another object or is otherwise subjected to external forces.
- the tightness of the covering 20, after it has been shrunk around the package 10, minimizes movement of the film relative to the glass roving when the film is acted upon by an external force. Consequently, the filaments are not abraded by movement of the film. Furthermore, it has been observed, even when the external force is sufficient to cause some movement of the film, the filaments on the outer and end surfaces of the package are not moved. Therefore, the tight covering 20 also protects the glass roving from self-abrasion due to relative movement of the filaments.
- a feature of the present invention is that additional protection for the package ends is provided. As was discussed previously, when the film has been shrunk it becomes substantially thicker in the end portions 24 and 26. Thus the end portions 24 and 26 become more rigid or taut and provide greater resistance to movement relative to the filaments.
- FIG. 2 Another significant feature of the covered roving package of FIG. 2 is its improved runout and transfer characteristics. It has been found that the roving from the package can be completely unwound by pulling the free end 14 without the coils of roving on the outer surface 18 slumping together and becoming entangled. Consequently, the processor can use all the roving without any scrap. Furthermore, the processor can tie the trailing end 12 to the leading end of another package for an uninterrupted operation. When shrinking the covering 20 onto the roving package 10, roving end 12 is made accessible through the opening 30.
- the opening 30 in the end 24 is also believed to contribute to the improved runout and transfer properties of the invention.
- the opening 30 is smaller in diameter than the inner cylindrical surface 16 of the textile package. Under the proper process conditions a smooth round, concentric opening is formed during the heat shrinking operation. It is preferred that the opening 30 be con-- centric with the inner surface 16, but it has been observed that eccentrically located openings occasionally result. However, the packages having eccentric openings are still operable as long as the opening 30 falls with the area of the inner surface 16 so that the end portion 24 of the covering 20 fully protects all the glass roving on the package end.
- the opening 30 serves as a guide eye for the roving as it is withdrawn as shown in FIG. 3.
- the roving is pulled through the opening 30 it is pulled at least partially radially inward from the surface 16. This radial movement prevents the roving from rubbing adjacent coils on the surface 16 and thereby reduce selfabrasion of the glass filaments. Furthermore, when only the last few coils or layers of coils remain in the package, the radial movement of the roving prevents it from disturbing adjacent coils and causing them to slump or collapse.
- the opening 30 In order for the opening 30 to serve as a guide, it must be smooth and free of snags or wrinkles in the material.
- the opening 30 could of course be manually cut into the end portion 24 of the covering.
- the opening is naturally formed with a smooth edge.
- a covered tubular package of glass roving from the interior of which roving can be completely withdrawn without interruption comprising a roving of glass filaments, the roving being wound in successive annular layers of equal axial length to form a cylindrical tube having a pair of generally flat, annular, opposite end surfaces, and a tubular covering longer than the tube of roving, open at one end, and formed of heat-shrinkable resinous film, the tube of roving being disposed endwise in the tubular covering, a first generally cylindrical portion of the covering being shrunk by heat into a tubular sleeve in intimate contact with an outer layer of the roving, a second generally cylindrical open end portion of the covering being shrunk by heat into a flat, annular, wrinkle-free, taut end portion in contact with the adjacent end surface of the tube of roving and having a smooth, generally circular opening substantially con-' centric with the tube of roving and of smaller diameter than an inner diameter of the tube, an inner peripheral portion of the flat, annular
- a method of making a covered tubular package of glass roving from the interior of which roving can be completely withdrawn without interruption comprising providing a roving of glass filaments, winding the roving in successive annular layers of equal axial length to form a cylindrical tube having a pair of generally flat, annular, opposite end surfaces, providing a tubular covering longer than the tube of roving, open at one end, and formed of heat-shrinkable resinous film, inserting the tube of roving endwise into the tubular covering through the one open end thereof, shrinking a first generally cylindrical portion of the covering by heat into a tubular sleeve in intimate contact with an outer layer inner diameter of the tube.
Abstract
Description
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US376080A US3915301A (en) | 1971-02-08 | 1973-07-02 | Covered tubular package of glass roving and method of making |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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US11321971A | 1971-02-08 | 1971-02-08 | |
US376080A US3915301A (en) | 1971-02-08 | 1973-07-02 | Covered tubular package of glass roving and method of making |
Publications (1)
Publication Number | Publication Date |
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US3915301A true US3915301A (en) | 1975-10-28 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US376080A Expired - Lifetime US3915301A (en) | 1971-02-08 | 1973-07-02 | Covered tubular package of glass roving and method of making |
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Cited By (30)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1978000016A1 (en) * | 1977-06-09 | 1978-12-21 | R Brook | Supply package for wet-impregnated multifilament roving |
US4220295A (en) * | 1979-02-21 | 1980-09-02 | Owens-Corning Fiberglas Corporation | Packaged strand |
US4264010A (en) * | 1978-10-04 | 1981-04-28 | Mitsubishi Plastics Industries, Ltd. | Heat shrinkable polyvinyl chloride film |
FR2485490A1 (en) * | 1980-06-24 | 1981-12-31 | Oda Gosen Kogyo Kk | PACKAGING OF ENVELOPED FILES HAVING EFFICIENT ENDS AND A PROCESS OF MANUFACTURING THE SAME |
US4348439A (en) * | 1981-02-18 | 1982-09-07 | Certain-Teed Corporation | Package of wound strand material |
US4460086A (en) * | 1979-10-01 | 1984-07-17 | Ppg Industries, Inc. | Tubular glass fiber package and method |
US4467916A (en) * | 1982-04-26 | 1984-08-28 | Ppg Industries, Inc. | Tubular glass fiber package and method |
US4475651A (en) * | 1981-11-05 | 1984-10-09 | Elsner Engineering Works, Inc. | Roll-wrapping apparatus, method and intermediate product |
US4493464A (en) * | 1983-09-19 | 1985-01-15 | Owens-Corning Fiberglas Corporation | Packaged strand |
US4546880A (en) * | 1983-06-02 | 1985-10-15 | Ppg Industries, Inc. | Shippable package of glass fiber strands and process for making the package and continuous strand mat |
EP0300976A1 (en) * | 1987-04-02 | 1989-01-25 | SANTEX S.p.A. | Automatic system for making fabric layers to be packaged in a parcel shape |
FR2662431A1 (en) * | 1990-05-23 | 1991-11-29 | Bihr Freres Filature Ficelleri | Reel of wire, string, rope or the like, which unwinds from the inside |
US5147040A (en) * | 1989-10-06 | 1992-09-15 | Nitto Boseki Co., Ltd. | Roving package wrapper |
US5238114A (en) * | 1992-04-10 | 1993-08-24 | Owens-Corning Fiberglas Technology, Inc. | Strand packages |
US5551563A (en) * | 1994-12-21 | 1996-09-03 | Ppg Industries, Inc. | Packaging units for packaging a plurality of generally cylindrical objects |
US5867969A (en) * | 1995-10-10 | 1999-02-09 | Quinones; Victor Manuel | Method for wrapping steel |
US6012587A (en) * | 1998-07-20 | 2000-01-11 | Tenneco Packaging Inc. | Pallet load corner protector with locking tabs |
US6047523A (en) * | 1998-03-18 | 2000-04-11 | Tenneco Packaging Inc. | Vertical packaging of webbing rolls |
US6576305B2 (en) * | 1996-06-07 | 2003-06-10 | Saint-Gobain Vetrotex America, Inc. | Package having a multilayer film disposed around a layered coil of filament strands |
US20050263640A1 (en) * | 2004-06-01 | 2005-12-01 | David Vanderslice | Storage spool |
WO2008025084A1 (en) * | 2006-08-30 | 2008-03-06 | Merctech Pty Ltd | An external cover for a spool of thread to prevent thread from freely coming off as the spool is being used |
ITMI20121252A1 (en) * | 2012-07-18 | 2014-01-19 | Trafilerie Galli Bruno & C S N C | COIL STRUCTURE, PARTICULARLY FOR THE WINDING UP OF PRE-STRENGTH STEEL WIRES. |
US20140230375A1 (en) * | 2008-08-08 | 2014-08-21 | Furukawa Electric Co., Ltd. | Method for packing cable |
EP2835332A1 (en) * | 2013-08-08 | 2015-02-11 | Grupo General Cable Sistemas S.A. | Procedure for the manufacture of a cable roll with individual packaging and cable roll with individual packaging obtained by this procedure |
USD761637S1 (en) | 2014-05-07 | 2016-07-19 | Lincoln Global, Inc. | Wire coil package |
US9950895B2 (en) | 2014-07-03 | 2018-04-24 | Lincoln Global, Inc. | Welding wire coil packaging system |
US10292545B2 (en) | 2016-11-18 | 2019-05-21 | RD Textiles, LLC | Center-pull dispenser system |
US10538379B2 (en) | 2014-03-11 | 2020-01-21 | Lincoln Global, Inc. | Welding wire coil package |
US10919727B2 (en) * | 2017-02-14 | 2021-02-16 | Jushi Group Co., Ltd. | Process for knotting roving packages |
US11820538B2 (en) | 2020-09-29 | 2023-11-21 | Gpcp Ip Holdings Llc | Hole punching and spindle stuffing after bagger |
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US3371877A (en) * | 1965-05-14 | 1968-03-05 | Owens Corning Fiberglass Corp | Method for packaging multistrand roving |
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US3399761A (en) * | 1966-07-04 | 1968-09-03 | Asahi Chemical Ind | Yarn package |
US3700185A (en) * | 1970-02-17 | 1972-10-24 | Anaconda Wire & Cable Co | Dispensable coil package |
-
1973
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Cited By (40)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4147253A (en) * | 1977-06-09 | 1979-04-03 | Desoto, Inc. | Supply package for wet-impregnated multifilament roving |
WO1978000016A1 (en) * | 1977-06-09 | 1978-12-21 | R Brook | Supply package for wet-impregnated multifilament roving |
US4264010A (en) * | 1978-10-04 | 1981-04-28 | Mitsubishi Plastics Industries, Ltd. | Heat shrinkable polyvinyl chloride film |
DE2953552C1 (en) * | 1979-02-21 | 1984-09-27 | Owens-Corning Fiberglas Corp., Toledo, Ohio | Diaper pack and method of making the same |
WO1980001792A1 (en) * | 1979-02-21 | 1980-09-04 | Owens Corning Fiberglass Corp | Packaged strand |
US4220295A (en) * | 1979-02-21 | 1980-09-02 | Owens-Corning Fiberglas Corporation | Packaged strand |
FR2449615A1 (en) * | 1979-02-21 | 1980-09-19 | Owens Corning Fiberglass Corp | COIL OF THREAD SURROUNDED BY AN ENVELOPE AND METHOD FOR OBTAINING SUCH A COIL |
US4460086A (en) * | 1979-10-01 | 1984-07-17 | Ppg Industries, Inc. | Tubular glass fiber package and method |
FR2485490A1 (en) * | 1980-06-24 | 1981-12-31 | Oda Gosen Kogyo Kk | PACKAGING OF ENVELOPED FILES HAVING EFFICIENT ENDS AND A PROCESS OF MANUFACTURING THE SAME |
US4348439A (en) * | 1981-02-18 | 1982-09-07 | Certain-Teed Corporation | Package of wound strand material |
US4475651A (en) * | 1981-11-05 | 1984-10-09 | Elsner Engineering Works, Inc. | Roll-wrapping apparatus, method and intermediate product |
US4467916A (en) * | 1982-04-26 | 1984-08-28 | Ppg Industries, Inc. | Tubular glass fiber package and method |
US4546880A (en) * | 1983-06-02 | 1985-10-15 | Ppg Industries, Inc. | Shippable package of glass fiber strands and process for making the package and continuous strand mat |
US4493464A (en) * | 1983-09-19 | 1985-01-15 | Owens-Corning Fiberglas Corporation | Packaged strand |
EP0300976A1 (en) * | 1987-04-02 | 1989-01-25 | SANTEX S.p.A. | Automatic system for making fabric layers to be packaged in a parcel shape |
US5147040A (en) * | 1989-10-06 | 1992-09-15 | Nitto Boseki Co., Ltd. | Roving package wrapper |
FR2662431A1 (en) * | 1990-05-23 | 1991-11-29 | Bihr Freres Filature Ficelleri | Reel of wire, string, rope or the like, which unwinds from the inside |
US5238114A (en) * | 1992-04-10 | 1993-08-24 | Owens-Corning Fiberglas Technology, Inc. | Strand packages |
US5551563A (en) * | 1994-12-21 | 1996-09-03 | Ppg Industries, Inc. | Packaging units for packaging a plurality of generally cylindrical objects |
US5867969A (en) * | 1995-10-10 | 1999-02-09 | Quinones; Victor Manuel | Method for wrapping steel |
US20030207055A1 (en) * | 1996-06-07 | 2003-11-06 | Williams Allen C. | Package having a multilayer film disposed around a layered coil of filament strands |
US6576305B2 (en) * | 1996-06-07 | 2003-06-10 | Saint-Gobain Vetrotex America, Inc. | Package having a multilayer film disposed around a layered coil of filament strands |
US6047523A (en) * | 1998-03-18 | 2000-04-11 | Tenneco Packaging Inc. | Vertical packaging of webbing rolls |
US6012587A (en) * | 1998-07-20 | 2000-01-11 | Tenneco Packaging Inc. | Pallet load corner protector with locking tabs |
US20050263640A1 (en) * | 2004-06-01 | 2005-12-01 | David Vanderslice | Storage spool |
WO2008025084A1 (en) * | 2006-08-30 | 2008-03-06 | Merctech Pty Ltd | An external cover for a spool of thread to prevent thread from freely coming off as the spool is being used |
US20100108795A1 (en) * | 2006-08-30 | 2010-05-06 | Merctech Pty Ltd | External cover for a spool of thread to prevent thread from freely coming off as the spool is being used |
US8302894B2 (en) | 2006-08-30 | 2012-11-06 | Merctech Pty Ltd | External cover for a spool of thread to prevent thread from freely coming off as the spool is being used |
AU2007291955B2 (en) * | 2006-08-30 | 2014-01-23 | Merctech Pty Ltd | An external cover for a spool of thread to prevent thread from freely coming off as the spool is being used |
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