US3378189A - Plastic sack - Google Patents

Plastic sack Download PDF

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Publication number
US3378189A
US3378189A US577492A US57749266A US3378189A US 3378189 A US3378189 A US 3378189A US 577492 A US577492 A US 577492A US 57749266 A US57749266 A US 57749266A US 3378189 A US3378189 A US 3378189A
Authority
US
United States
Prior art keywords
sack
weld
mouth
gusset
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
Application number
US577492A
Other languages
English (en)
Inventor
Dickson Robert Walker
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
British Visqueen Ltd
Original Assignee
British Visqueen Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by British Visqueen Ltd filed Critical British Visqueen Ltd
Application granted granted Critical
Publication of US3378189A publication Critical patent/US3378189A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B65D33/00—Details of, or accessories for, sacks or bags
    • B65D33/01—Ventilation or drainage of bags
    • 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
    • B65D31/00—Bags or like containers made of paper and having structural provision for thickness of contents
    • B65D31/08—Bags or like containers made of paper and having structural provision for thickness of contents with block bottoms
    • 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
    • B65D31/00—Bags or like containers made of paper and having structural provision for thickness of contents
    • B65D31/10—Bags or like containers made of paper and having structural provision for thickness of contents with gusseted sides
    • 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
    • B65D31/00—Bags or like containers made of paper and having structural provision for thickness of contents
    • B65D31/14—Valve bags, i.e. with valves for filling
    • B65D31/147—Valve bags, i.e. with valves for filling the filling port being provided in a side wall

Definitions

  • an air vent comprising a perforation through the sack wall is provided in conjunction, ⁇ with at least one of said welds in a corner portion of an outwardly directed pleat, the position of the air vent andthe shape of the weld being such that the weld is adaptedgto screen the air vent from the contents of the sack but to allow the passage of air from the sack interior to the air vent.
  • FIGURE 1 is a side view of one side of the gusseted sack provided with a weld in one corner portion;
  • the weld 31 may follow a straight line or may be a spot weld between the film layers, or more than one weld may be provided. It is preferred, however, that the weld be of a rounded configuration, for example crescent shaped or arc shaped, or substantially semi-circular, since this distributes strains around the weld; considera-ble strains may be imposed upon the weld when the sack is being filled.
  • the sacks of this invention may be used for packing any materials, but are especially useful for packing powdered or granular materials, for example fertilizers, plastic granules, cement, salt, feeding stuffs.
  • Polythene and poly ⁇ vinyl chloride heavy duty films are widely used for mak- 3. ing sacks for such applications, and the sacks of this invention may readily be made from these materials' and also from other plastic films, for example from films of other polyolelines, for example polypropylene.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bag Frames (AREA)
US577492A 1965-09-06 1966-09-06 Plastic sack Expired - Lifetime US3378189A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB3797765 1965-09-06
GB37978/65A GB1152463A (en) 1965-09-06 1965-09-06 Plastics Gusseted Sack

Publications (1)

Publication Number Publication Date
US3378189A true US3378189A (en) 1968-04-16

Family

ID=26263654

Family Applications (1)

Application Number Title Priority Date Filing Date
US577492A Expired - Lifetime US3378189A (en) 1965-09-06 1966-09-06 Plastic sack

Country Status (7)

Country Link
US (1) US3378189A (enrdf_load_stackoverflow)
BE (1) BE686514A (enrdf_load_stackoverflow)
ES (1) ES130978Y (enrdf_load_stackoverflow)
GB (1) GB1152463A (enrdf_load_stackoverflow)
LU (1) LU51879A1 (enrdf_load_stackoverflow)
NL (1) NL6612547A (enrdf_load_stackoverflow)
SE (1) SE322464B (enrdf_load_stackoverflow)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4491959A (en) * 1982-04-22 1985-01-01 Wavin B.V. Plastic bag with gusset folds and perforations
US4573203A (en) * 1982-06-14 1986-02-25 Paramount Packaging Corp. Reusable plastic bag with loop handle
US4613988A (en) * 1984-02-29 1986-09-23 Mobil Oil Corporation Thermoplastic bag and method of forming the same
US4713839A (en) * 1982-06-14 1987-12-15 Paramount Packaging Corp. Resealable reusable flexible plastic bag with loop handle
US4890934A (en) * 1987-10-30 1990-01-02 The Procter & Gamble Company Plastic carrier bag with cut-out carry handle
US5112138A (en) * 1982-06-14 1992-05-12 Paramount Packaging Corporation Resealable reusable flexible plastic bag with loop handle
US5350239A (en) * 1991-10-03 1994-09-27 Norsk Hydro A.S. Suspension and venting
US6196717B1 (en) 1998-03-27 2001-03-06 Pactiv Corporation Folded thermoplastic bag structure
US20020147091A1 (en) * 2000-05-24 2002-10-10 Colgate-Palmolive Company Reclosable bag
US20040188310A1 (en) * 2003-03-31 2004-09-30 Peter Hamilton Ventable storage bag
US20050157961A1 (en) * 2004-01-21 2005-07-21 Dudley Langston Vented package
US20060257056A1 (en) * 2003-07-24 2006-11-16 Hidenobu Miyake Packaging bag with steam releasing function and package body using the packaging bag
EP2135818A1 (de) * 2008-06-20 2009-12-23 Nordfolien GmbH Entlüftbare Verpackung
US20110158562A1 (en) * 2009-12-31 2011-06-30 Emballage Rouville Inc. Deflatable bag with laterally perforated liner and non-adjacent humidity barrier
US20160107826A1 (en) * 2014-10-21 2016-04-21 The Procter & Gamble Company Flexible package and methods of making same

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3902494B2 (ja) * 2001-07-19 2007-04-04 博之 山田 脱気構造を有する袋体及びその製造方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE40107C (de) * A. KEMPE in Olbernhau, Sachsen Verschiebbarer Luftgewehrlauf
US2790591A (en) * 1954-04-20 1957-04-30 Milprint Inc Commodity bag for automatic filling machines
US3023947A (en) * 1955-08-16 1962-03-06 Int Paper Co Multiwall bag
US3133691A (en) * 1962-10-30 1964-05-19 Nat Distillers Chem Corp Vent for thermoplastic bag
US3237844A (en) * 1963-10-07 1966-03-01 Ici Ltd Bag closure

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE40107C (de) * A. KEMPE in Olbernhau, Sachsen Verschiebbarer Luftgewehrlauf
US2790591A (en) * 1954-04-20 1957-04-30 Milprint Inc Commodity bag for automatic filling machines
US3023947A (en) * 1955-08-16 1962-03-06 Int Paper Co Multiwall bag
US3133691A (en) * 1962-10-30 1964-05-19 Nat Distillers Chem Corp Vent for thermoplastic bag
US3237844A (en) * 1963-10-07 1966-03-01 Ici Ltd Bag closure

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4491959A (en) * 1982-04-22 1985-01-01 Wavin B.V. Plastic bag with gusset folds and perforations
US4573203A (en) * 1982-06-14 1986-02-25 Paramount Packaging Corp. Reusable plastic bag with loop handle
US4713839A (en) * 1982-06-14 1987-12-15 Paramount Packaging Corp. Resealable reusable flexible plastic bag with loop handle
US5112138A (en) * 1982-06-14 1992-05-12 Paramount Packaging Corporation Resealable reusable flexible plastic bag with loop handle
US4613988A (en) * 1984-02-29 1986-09-23 Mobil Oil Corporation Thermoplastic bag and method of forming the same
US4890934A (en) * 1987-10-30 1990-01-02 The Procter & Gamble Company Plastic carrier bag with cut-out carry handle
US5350239A (en) * 1991-10-03 1994-09-27 Norsk Hydro A.S. Suspension and venting
US6196717B1 (en) 1998-03-27 2001-03-06 Pactiv Corporation Folded thermoplastic bag structure
US20020147091A1 (en) * 2000-05-24 2002-10-10 Colgate-Palmolive Company Reclosable bag
US7237953B2 (en) * 2000-05-24 2007-07-03 Colgate-Palmolive Company Reclosable bag
US20040188310A1 (en) * 2003-03-31 2004-09-30 Peter Hamilton Ventable storage bag
US7004632B2 (en) 2003-03-31 2006-02-28 The Glad Products Company Ventable storage bag
US20060257056A1 (en) * 2003-07-24 2006-11-16 Hidenobu Miyake Packaging bag with steam releasing function and package body using the packaging bag
US8777486B2 (en) * 2003-07-24 2014-07-15 Toppan Printing Co., Ltd. Packaging bag with steam venting function and package using the packaging bag
US20050157961A1 (en) * 2004-01-21 2005-07-21 Dudley Langston Vented package
EP2135818A1 (de) * 2008-06-20 2009-12-23 Nordfolien GmbH Entlüftbare Verpackung
US20110158562A1 (en) * 2009-12-31 2011-06-30 Emballage Rouville Inc. Deflatable bag with laterally perforated liner and non-adjacent humidity barrier
US20160107826A1 (en) * 2014-10-21 2016-04-21 The Procter & Gamble Company Flexible package and methods of making same

Also Published As

Publication number Publication date
LU51879A1 (enrdf_load_stackoverflow) 1966-11-03
SE322464B (enrdf_load_stackoverflow) 1970-04-06
BE686514A (enrdf_load_stackoverflow) 1967-03-06
ES130978Y (es) 1968-05-16
GB1152463A (en) 1969-05-21
ES130978U (es) 1968-01-16
NL6612547A (enrdf_load_stackoverflow) 1967-03-07

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