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US3439865A - Woven plastic bags - Google Patents

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Publication number
US3439865A
US3439865A US3439865DA US3439865A US 3439865 A US3439865 A US 3439865A US 3439865D A US3439865D A US 3439865DA US 3439865 A US3439865 A US 3439865A
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Patent type
Prior art keywords
yarns
fabric
woven
bag
plastic
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
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Inventor
Morton I Port
Bernard L Schwartz
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Parker Pace Corp
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Parker Pace Corp
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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
    • B65D31/00Bags or like containers made of paper and having structural provision for thickness of contents
    • 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
    • B65D29/00Sacks or like containers made of fabrics; Flexible containers of open-work, e.g. net-like construction
    • DTEXTILES; PAPER
    • D02YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02GCRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/02Yarns or threads characterised by the material or by the materials from which they are made
    • D02G3/06Threads formed from strip material other than paper
    • DTEXTILES; PAPER
    • D03WEAVING
    • D03DWOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D3/00Woven fabrics characterised by their shape
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/70General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • DTEXTILES; PAPER
    • D03WEAVING
    • D03DWOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D2700/00Woven fabrics; Methods of weaving; Looms
    • D03D2700/03Tubular fabrics or bags; Endless fabrics
    • 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
    • Y10T428/29Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof

Description

April 22, 1969 M. 1. PORT ETAL WOVEN PLASTIC BAGS Filed. Dec. 17, 1964 i pmsr/a Kwws u T INVENTORS 559M1 0 Z 66W? United States Patent 3,439,865 WOVEN PLASTIC BAGS Morton I. Port, West End, N.J., and Bernard L. Schwartz,

Scarsdale, N.Y., assignors to Parker Pace Corporation,

a corporation of New York Filed Dec. 17, 1964, Ser. No. 419,140

Int. Cl. B65d 29/00 US. Cl. 229-53 5 Claims This invention relates generally to plastic sacks and bags, and more particuuarly to sacks fabricated of woven, flat synthetic yarns to produce a light-weight, dimensionally stable sack of exceptional strength which is waterproof and yet permeable to air and vapor.

In the bailing of chemical powders, tobacco, grain, raw wool and cotton, and other bulk materials, the need exists for heavy-duty bags or sacks which not only have suflicient strength for the intended load, but which afford protective cover therefor. Though conventional bags for such purposes made of multi-walled paper or natural fibers such as cotton or jute have the requisite strength when dry, they lose substantial strength when wet, with a resultant failure of the bag. Moreover, 'bags of conventional design are subject to rot, mildew and attack by insects.

It is also known to fabricate bags of extruded plastic film material. Such bags are generally immune to deterioration, but they lack other important qualities. Thus, while plastic bags are waterproof, they are also impermeable to the air and water vapor. With certain bulk :materials such as grain and tobacco, one must avoid hermetically sealing the contents, and while the 'bag should be waterproof, it nevertheless must allow for the limited flow of air and vapor. Furthermore, bags of plastic film or sheet have limited strength and tend to stretch under heavy loads. On the other hand, where the bag is not of film material, but is of woven construction, the resultant pores not only permit the passage of water, but in the case of fine powders, give rise to spillage of the contents.

Accordingly, it is the main object of this invention to provide a bag formed of woven plastic yarn which has exceptional tensile and tear strength despite its light weight, and which is waterproof, spillproof, and yet permeable to air and vapor. Thus, while the bag is impervious to liquids it is porous to gases.

More specifically, it is an object of this invention to provide a bag of the above-described type wherein the bag walls are composed of closely woven, flat synthetic plastic yarns which are oriented and drawn to high tensile strength.

Also an object of the invention is to provide a fabirc woven of flat, synthetic yarns which afford maximum coverage for a minimum number of yarns, the fabric being heat-stabilized and calendered to produce a lightweight bag which is dimensionally stabilized.

Still another object of the invention is to provide a durable bag of high quality formed of flat yarns of the above-described type, which may be manufactured and sold at very low cost.

Briefly stated, a bag in accordance with the invention is composed of a fabric woven of warp and weft yarns which are of flat monofilament construction and which are longitudinally oriented to maximize their tensile strength, the yarns being woven with sufficient tightness to render the fabric waterproof but permeable to gas flow, the warp and weft yarns being interbonded to prevent slippage thereof and to maintain the dimensional stability of the fabric.

A significant advantage of the invention resides in the fact that the interbonding is effected by sintering the warp and weft yarns rather than by fusion, whereby when 3,439,865 Patented Apr. 22, 1969 the bag is subjected to a tearing action, the warp and weft yarns break away from each other and shift into bunches affording maximum tear resistance.

For a better understanding of the invention as well as other objects and further features thereof, reference is had to the following detailed description to be read in conjunction with the accompanying drawing, wherein:

FIG. 1 is a perspective view of a bag in accordance with the invention;

FIG. 2 is a plan view of the woven fabric used in making the bag; and

FIG. 3 schematically shows the process by which the fabric is made and stabilized.

Referring now to FIG. 1, the bag or sack, generally designated by numeral 10, is formed by a fabric composed of horizontally-extending fiat warp yarns 11 and transversely-extending fiat weft or filler yarns 13. The warp and weft yarns are tightly woven in any known manner on a textile loom to form a sheetlike material relatively free of interstices.

The yarns used for this purpose are ribbon-like synthetic plastic, monofilament yarns manufactured in various densities and having a rectangular cross-section. Such yarns may be produced from any suitable synthetic plastic material, including polypropylene, polyamides such as nylon, polyester of polyacrylic yarns, as well as vinyl and polyethylene yarns. In practice, yarns of l to 2 mils thickness and 50 to 200 mils in width are suitable. A preferred weave is 12 x 9 and higher, although weaves of 8 x 8 are satisfactory.

It will be appreciated that by reasons of the flat yarn, maximum coverage is obtained with the least amount of weaving, for as compared to round yarns, it requires relatively few yarns per inch to cover a given surface.

It is important that the ribbon-like yarns be highly oriented mono-axially in the longitudinal direction. This is usually accomplished by so drawing the flat yarn or the web from which the flat yarn ribbons are slit, as to irreversibly stretch the yarn or web, thereby orienting the molecular structure of the material. In bi-axially oriented yarn or sheeting, the material is stretched both in the transverse and longitudinal directions, but for purposes of the present invention, it is vital that the orientation be carried out only in the longitudinal direction.

When the mono-axially oriented synthetic plastic yarns are interwoven, they cross over in the warp and weft directions, and because of their high tear and tensile strength as well as their hydrophilic properties, the resultant fabric is stable. Thus the bag is capable of supporting unusually heavy loads without sagging or stretching of the walls.

With a close weave, there nevertheless remain minute pores at the points of intersection. Because of surface tension effects, water is unable to pass through these pores and the bag material is effectively waterproof. However these pores permit the passage of gas and vapors which, as indicated previously, is desirable for certain organic bulk materials to prevent mildew and other deleterious effects.

With the use of fiat yarns there is a tendency of the yarns to shift one over the other. As shown in FIG. 3, this drawback is obviated by conducting the woven web emerging from the loom 13 into a pair of heat rolls 14 and 15 which subject the overlying warp and weft yarns to pressure and cause a slight interbonding or sintering therebetween.

In practice, the temperature of the rolls may be approximately in the range of 300 F. to 320 F. However, the appropriate temperature will depend on the physical nature of the synthetic plastic being treated. The sintering of the warp and weft yarns may also be carried out by using hot air on infra-red heating elements.

The sintering effect must be carefully controlled so u that under ordinary circumstances the yarns will not shift one over the other and the shape of the sack will be preserved. But if the sack is subjected to a tearing action, the sintered yarns, which are slightly bonded together only by surface fusion, will break apart and the yarns will then tend to shift and bunch. The bunched yarns are difiicult to tear for they present maximum tear resistance.

In shaping the fabric into a sack, it is only necessary to cut a suitable rectangle of the material and to fold the same, after which the long end 16 is seamed or heatsealed to produce a sleeve, and the short end 17 is seamed and possibly reinforced by a marginal fold-over to produce the bottom.

What we claim is:

1. A dimensionally stable, heavy duty waterproof, gas pervious sack of high strength, said sack having an open end and a closed end and being fabricated of a fabric Woven of flat, monofilament warp and Weft yarns formed of a mono-axially oriented synthetic plastic material, the weave of said fabric being sufliciently tight to render said fabric waterproof but pervious to gas.

2. A dimensionally stable, heavy duty, waterproof, gas pervious sack of high strength, said sack having an open end and a closed end and being fabricated of a fabric woven of fiat, monofilament warp and weft yarns formed of a mono-axially oriented synthetic plastic material, the weave of said fabric being sufficiently tight to render said UNITED STATES PATENTS 3,297,509 1/1967 Mercer 156-271 3,270,370 9/1966 Mercer 18-12 3,270,103 8/1966 Kurtz 264-45 3,266,966 8/1966 Patchell 156-167 3,255,065 6/1966 Wyckotf 156-229 2,752,276 6/1956 Woock 161-109 2,545,981 3/1951 Warp 161-143 2,332,373 10/1943 Dorogh et 31.

ROBERT F. BURNETT, Primary Examiner.

MARK A. LITMAN, Assistant Examiner.

US. Cl. X.R.

Claims (1)

1. A DIMENSIONALLY STABLE, HEAVY DUTY WATERPROOF, GAS PERVIOUS SACK OF HIGH STRENGTH, SAID SACK HAVING AN OPEN END AND A CLOSED END BEING FABRICATED OF A FABRIC WOVEN AND A CLOSED END AND BEING FABRICATED OF A FABRIC WOVEN OF FLAT, MONOFILAMENT WARP AND WEFT YARNS FORMED OF A MONO-AXIALLY ORIENTED SYNTHETIC PLASTIC MATERIAL, THE WEAVE OF SAID FABRIC BEING SUFFICIENTLY TIGHT TO RENDER SAID FABRIC WATERPROOF BUT PERVIOUS TO GAS.
US3439865A 1964-12-17 1964-12-17 Woven plastic bags Expired - Lifetime US3439865A (en)

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US41914064 true 1964-12-17 1964-12-17

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US3439865A true US3439865A (en) 1969-04-22

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US3439865A Expired - Lifetime US3439865A (en) 1964-12-17 1964-12-17 Woven plastic bags

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BE (1) BE673941A (en)
DE (1) DE1479604C3 (en)
ES (1) ES321143A1 (en)
FI (1) FI45159C (en)
FR (1) FR1464250A (en)
GB (1) GB1066660A (en)
NL (1) NL6516458A (en)

Cited By (46)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3503106A (en) * 1968-06-27 1970-03-31 Avisun Corp Continuous techniques for making flat woven synthetic fabrics
US3542632A (en) * 1969-02-28 1970-11-24 Standard Oil Co Fibrillated fabrics and a process for the preparation thereof
US3544404A (en) * 1968-01-05 1970-12-01 Burlington Industries Inc Method of making polypropylene bags
US3627605A (en) * 1969-11-24 1971-12-14 Burlington Industries Inc Method for making bonded fabric
US3645299A (en) * 1966-10-25 1972-02-29 Chemiefaser Lenzing Ag Process for the production of foil ribbon fabrics and apparatus for carrying out this process
US3709263A (en) * 1970-09-08 1973-01-09 Thiokol Chemical Corp Woven fabric for nursery plant root balls
US3731351A (en) * 1970-10-12 1973-05-08 Monsanto Co Process of manufacturing tightly woven acrylic fabric
FR2204726A1 (en) * 1972-10-26 1974-05-24 Du Pont Canada
US3894161A (en) * 1972-10-18 1975-07-08 Great Western Sugar Co Method of protecting stored sugarbeets and an article useful therefor
US4264659A (en) * 1978-12-08 1981-04-28 E. I. Du Pont De Nemours And Company Stiff woven polyethylene fabric comprising layers bonded together by an adhesive layer consisting of a thermoplastic material in the form of a lace
US4291082A (en) * 1978-11-15 1981-09-22 E. I. Du Pont De Nemours And Company Breathable fabric and sack made therefrom
US4309487A (en) * 1968-08-23 1982-01-05 Phillips Petroleum Co. Laminated armor
US4643119A (en) * 1985-07-12 1987-02-17 Exxon Chemical Patents Inc. Industrial textile fabric
US4934125A (en) * 1986-10-13 1990-06-19 Gallaher Limited A method of filling a container
US5082701A (en) * 1987-12-09 1992-01-21 Quadrax Corporation Multi-directional, light-weight, high-strength interlaced material and method of making the material
US5098754A (en) * 1990-05-29 1992-03-24 Marilyn Horstmyer Hay bag
US5229177A (en) * 1987-12-09 1993-07-20 Quadrax Corporation Multi-directional, light-weight, high-strength interlaced material
US5356024A (en) * 1992-03-26 1994-10-18 Allure Home Creation Co., Inc. Collapsible hamper for storage of laundry and other items
US5437905A (en) * 1994-05-17 1995-08-01 Park; Andrew D. Ballistic laminate structure in sheet form
US5590775A (en) * 1995-07-14 1997-01-07 Moore; Carter Christmas tree transport and storage satchel
US5732745A (en) * 1994-01-31 1998-03-31 Marko I.R.D.C., Inc. Thermoplastic tube
US5925434A (en) * 1997-06-12 1999-07-20 Bp Amoco Corporation Tuftable backing and carpet construction
US5935678A (en) * 1994-05-17 1999-08-10 Park; Andrew D. Ballistic laminate structure in sheet form
US5952078A (en) * 1994-05-17 1999-09-14 Park; Andrew D. Athletic guard including energy absorbing laminate structure
US5964533A (en) * 1996-09-16 1999-10-12 Lamont Limited Hamper apparatus and methods
US6089394A (en) * 1996-07-22 2000-07-18 Lamont Limited Collapsible hamper for the storage of laundry and other items
USD461638S1 (en) 2000-11-30 2002-08-20 Bajer Design & Marketing, Inc. Collapsible container
USRE37924E1 (en) 1998-07-01 2002-12-10 Bajer Design & Marketing, Inc. Collapsible container and method of making and using same
US6494335B1 (en) 1998-07-01 2002-12-17 Bajer Design & Marketing, Inc. Two frame collapsible structure and method of making and using same
US20030031825A1 (en) * 1998-12-11 2003-02-13 Edward Barkis Tuftable fabric with balanced construction
US20050167428A1 (en) * 1998-07-01 2005-08-04 Bajer Design & Marketing, Inc. Collapsible structure
US6948632B2 (en) 1998-07-01 2005-09-27 Bajer Design & Marketing, Inc. Collapsible structure
US20050233034A1 (en) * 1999-06-24 2005-10-20 Culdrose Engineering Food heating container
US20050260380A1 (en) * 2004-05-20 2005-11-24 Moon Richard C Tuftable carpet backings and carpets with enhanced tuft holding properties
US20060204696A1 (en) * 2005-03-14 2006-09-14 Global Strategies, Inc. High strength ribbon-woven disposable bag for containing refuse
US20070034627A1 (en) * 2003-05-02 2007-02-15 Richard Roy Wood Intermediate bulk container
US20070178790A1 (en) * 2006-01-31 2007-08-02 Propex Fabrics Inc. Secondary carpet backing and buckling resistant carpet made therefrom
US20070210490A1 (en) * 2006-03-03 2007-09-13 Malloy Cassie M Low profile textile wire bundler sleeve
US20090223954A1 (en) * 2008-03-05 2009-09-10 Bajer Design & Marketing, Inc. Collapsible container having discontinuous frame members
US20090261094A1 (en) * 1998-07-01 2009-10-22 Bajer Design & Marketing, Inc. Collapsible structure
USD610352S1 (en) 2003-04-11 2010-02-23 Bajer Design & Marketing, Inc. Collapsible structure
USD612117S1 (en) 2008-09-03 2010-03-16 Bajer Design & Marketing, Inc. Collapsible structure
WO2010139560A2 (en) * 2009-06-05 2010-12-09 Starlinger & Co Gesellschaft M.B.H. Flaw location detection
USD661900S1 (en) 2010-02-22 2012-06-19 Bajer Design & Marketing, Inc. Collapsible structure
USD680329S1 (en) 2012-06-19 2013-04-23 Bajer Design & Marketing, Inc. Collapsible structure
US9485957B2 (en) 2014-08-28 2016-11-08 Sportpet Designs, Inc. Pet kennel

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DE3274663D1 (en) * 1982-03-19 1987-01-22 Phormium N V Shadow and insulation screen for greenhouses or an open field protection screen, and process for making it
DE4216659A1 (en) * 1992-05-20 1993-11-25 Akzo Nv Textile container for wet clothing etc. - has inner non-porous polymer membrane which is permeable to water vapour, enabling contents to dry out without growth of bacteria or mould
DE29809341U1 (en) * 1998-05-23 1998-08-20 Curtis 1000 Europ Gmbh Retention packaging for bread, rolls or the like.

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US2332373A (en) * 1942-03-03 1943-10-19 Du Pont Flexible transparent sheet material
US2545981A (en) * 1945-12-03 1951-03-20 Flex O Glass Inc Reinforced plastic sheet
US2752276A (en) * 1950-12-11 1956-06-26 Plastaket Mfg Company Plastic web-sheet and method of making same
US3266966A (en) * 1959-03-23 1966-08-16 Smith & Nephew Cast plastic sheets or films
US3255065A (en) * 1961-06-02 1966-06-07 Fmc Corp Method for making a composite film
US3270103A (en) * 1962-03-31 1966-08-30 Basf Ag Production of shockproof expanded plastic sheets
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Cited By (65)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3645299A (en) * 1966-10-25 1972-02-29 Chemiefaser Lenzing Ag Process for the production of foil ribbon fabrics and apparatus for carrying out this process
US3544404A (en) * 1968-01-05 1970-12-01 Burlington Industries Inc Method of making polypropylene bags
US3503106A (en) * 1968-06-27 1970-03-31 Avisun Corp Continuous techniques for making flat woven synthetic fabrics
US4309487A (en) * 1968-08-23 1982-01-05 Phillips Petroleum Co. Laminated armor
US3542632A (en) * 1969-02-28 1970-11-24 Standard Oil Co Fibrillated fabrics and a process for the preparation thereof
US3627605A (en) * 1969-11-24 1971-12-14 Burlington Industries Inc Method for making bonded fabric
US3709263A (en) * 1970-09-08 1973-01-09 Thiokol Chemical Corp Woven fabric for nursery plant root balls
US3731351A (en) * 1970-10-12 1973-05-08 Monsanto Co Process of manufacturing tightly woven acrylic fabric
US3894161A (en) * 1972-10-18 1975-07-08 Great Western Sugar Co Method of protecting stored sugarbeets and an article useful therefor
FR2204726A1 (en) * 1972-10-26 1974-05-24 Du Pont Canada
US4291082A (en) * 1978-11-15 1981-09-22 E. I. Du Pont De Nemours And Company Breathable fabric and sack made therefrom
US4264659A (en) * 1978-12-08 1981-04-28 E. I. Du Pont De Nemours And Company Stiff woven polyethylene fabric comprising layers bonded together by an adhesive layer consisting of a thermoplastic material in the form of a lace
US4643119A (en) * 1985-07-12 1987-02-17 Exxon Chemical Patents Inc. Industrial textile fabric
US4934125A (en) * 1986-10-13 1990-06-19 Gallaher Limited A method of filling a container
US5011008A (en) * 1986-10-13 1991-04-30 Gallaher Limited Container
US5229177A (en) * 1987-12-09 1993-07-20 Quadrax Corporation Multi-directional, light-weight, high-strength interlaced material
US5082701A (en) * 1987-12-09 1992-01-21 Quadrax Corporation Multi-directional, light-weight, high-strength interlaced material and method of making the material
US5098754A (en) * 1990-05-29 1992-03-24 Marilyn Horstmyer Hay bag
US5464113A (en) * 1992-03-26 1995-11-07 Allure Home Creation Co., Inc. Collapsible hamper for storage of laundry and other items
US5356024A (en) * 1992-03-26 1994-10-18 Allure Home Creation Co., Inc. Collapsible hamper for storage of laundry and other items
US5732745A (en) * 1994-01-31 1998-03-31 Marko I.R.D.C., Inc. Thermoplastic tube
US5935678A (en) * 1994-05-17 1999-08-10 Park; Andrew D. Ballistic laminate structure in sheet form
US5443883A (en) * 1994-05-17 1995-08-22 Park; Andrew D. Ballistic panel
US5443882A (en) * 1994-05-17 1995-08-22 Park; Andrew D. Armored garment
US5547536A (en) * 1994-05-17 1996-08-20 Park; Andrew D. Method for fabricating a ballistic laminate structure
US5437905A (en) * 1994-05-17 1995-08-01 Park; Andrew D. Ballistic laminate structure in sheet form
US5952078A (en) * 1994-05-17 1999-09-14 Park; Andrew D. Athletic guard including energy absorbing laminate structure
US5590775A (en) * 1995-07-14 1997-01-07 Moore; Carter Christmas tree transport and storage satchel
US6089394A (en) * 1996-07-22 2000-07-18 Lamont Limited Collapsible hamper for the storage of laundry and other items
US5964533A (en) * 1996-09-16 1999-10-12 Lamont Limited Hamper apparatus and methods
US5925434A (en) * 1997-06-12 1999-07-20 Bp Amoco Corporation Tuftable backing and carpet construction
US6948632B2 (en) 1998-07-01 2005-09-27 Bajer Design & Marketing, Inc. Collapsible structure
US8127956B2 (en) 1998-07-01 2012-03-06 Bajer Design & Marketing, Inc. Collapsible structure
US6494335B1 (en) 1998-07-01 2002-12-17 Bajer Design & Marketing, Inc. Two frame collapsible structure and method of making and using same
US20090261094A1 (en) * 1998-07-01 2009-10-22 Bajer Design & Marketing, Inc. Collapsible structure
US20090114648A1 (en) * 1998-07-01 2009-05-07 Sportpet Designs, Inc. Collapsible structure
US20050167428A1 (en) * 1998-07-01 2005-08-04 Bajer Design & Marketing, Inc. Collapsible structure
USRE37924E1 (en) 1998-07-01 2002-12-10 Bajer Design & Marketing, Inc. Collapsible container and method of making and using same
US6897170B2 (en) * 1998-12-11 2005-05-24 Propex Fabrics, Inc. Tuftable fabric with balanced construction
US20030031825A1 (en) * 1998-12-11 2003-02-13 Edward Barkis Tuftable fabric with balanced construction
US7824720B2 (en) * 1999-06-24 2010-11-02 Planit Products Limited Food heating container
US20050233034A1 (en) * 1999-06-24 2005-10-20 Culdrose Engineering Food heating container
USD461638S1 (en) 2000-11-30 2002-08-20 Bajer Design & Marketing, Inc. Collapsible container
USD610352S1 (en) 2003-04-11 2010-02-23 Bajer Design & Marketing, Inc. Collapsible structure
US20070034627A1 (en) * 2003-05-02 2007-02-15 Richard Roy Wood Intermediate bulk container
US8100264B2 (en) * 2003-05-02 2012-01-24 Almar Packaging (Pty) Ltd. Intermediate bulk container
US20050260380A1 (en) * 2004-05-20 2005-11-24 Moon Richard C Tuftable carpet backings and carpets with enhanced tuft holding properties
US7510327B2 (en) * 2005-03-14 2009-03-31 Global Strategies, Inc. High strength ribbon-woven disposable bag for containing refuse
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Also Published As

Publication number Publication date Type
FR1464250A (en) 1966-12-30 grant
NL6516458A (en) 1966-06-20 application
FI45159B (en) 1971-11-30 application
GB1066660A (en) 1967-04-26 application
DE1479604C3 (en) 1975-06-12 grant
DE1479604B2 (en) 1974-10-31 application
FI45159C (en) 1972-03-10 grant
DE1479604A1 (en) 1969-06-04 application
ES321143A1 (en) 1967-02-01 application
BE673941A (en) 1966-06-17 grant

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