US2593328A - Perforated multiple ply bag - Google Patents
Perforated multiple ply bag Download PDFInfo
- Publication number
- US2593328A US2593328A US38525A US3852548A US2593328A US 2593328 A US2593328 A US 2593328A US 38525 A US38525 A US 38525A US 3852548 A US3852548 A US 3852548A US 2593328 A US2593328 A US 2593328A
- Authority
- US
- United States
- Prior art keywords
- bag
- plies
- ply
- paper
- perforated
- 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
- 239000000463 material Substances 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000004568 cement Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
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
- 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
- B65D31/04—Bags or like containers made of paper and having structural provision for thickness of contents with multiple walls
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S229/00—Envelopes, wrappers, and paperboard boxes
- Y10S229/938—Sandwich holder
Definitions
- An object of the present invention is to provide for the more rapid escape of air through the plies that have been electrically perforated and form the body of a bag such as shown in my United States Patent No. 2,340,546, dated February 1, 1944.
- the speed at which the bag is filled may be increased and thus, the production of the filling machines may be correspondingly increased.
- Fig. 1 is a side view of a valved type of multiple ply bag embodying my invention
- Figs. 2 and 3 are section views on an enlarged Fig. 1;
- Fig. 4 is a perspective view on a greatly enlarged scale of a portion of the bag shown in Fig. 1 and illustrating the arrangement of the plies therein;
- Fi s. 5 and 6 are and views taken from the side and top, respectively, of Fig. 4;
- Figs. '7 and 8 are end views taken from the side and top, respectively, of a modified form of a multiple ply bag structure embodying my invention
- Figs. 9 and 10 are end views taken from the side and top, respectively, of another form of multiple ply bag structure embodying my invention.
- Figs. 11 and 12 are end views taken from the side and top, respectively, of another form of multiple ply bag structure embodying my invention.
- a multiple ply bag I of the valved type is shown in Fig. 1.
- This type of bag is shown for the purposes of illustrations only and it will be understood that the present invention may be utilized in other types of multiple ply bags as well.
- Bags of the valved type are well known and are commonly 4 Claims. (Cl. 229-55) scale taken along the lines 22 and 3-3 of used for packaging commodities such as cement or the like.
- the bag I is provided with a valved opening 2 at one corner thereof through which the bag may be filled from a suitable filling device and it has sewn end closures 3.
- the body of the bag I is formed from a number of superimposed plies of paper.
- Each of the plies are in thefo'rm of a tube with its vertical edges overlapped and pasted together as indicated at 4, 5 and 6 in Figs. 1 and 2.
- each of the plies thatform the body of the bag I may be electrically perforated to provide minute, burrless perforations through which the air ontrapped in the bag during filling may escape, but which are small enough to prevent the commodity with which the bag is filled from passing through such perforations or water from entering such, perforations.
- the electrically perforated plies that have previously been used to form the bag body are smooth surfaced and under the pressure due to filling of the bag, there is a tendency for the contacting smooth surfaces 'of adjoining plies to be forced into such close contact that the flow of the air that is escaping 30 through the plies is restricted in passing from one ply to the next.
- a. ply I of electrically perforated paper having crinkled surfaces such as a creped or ribbed paper between plies 8 and 9 of electrically perforated, smooth surfaced paper so as to provide passageways ill for the air passing between the plies that the rate at which the air entrappedin the bag may flow through the plies is greatly increased and thus, the rate at which the bag can be filled is also increased.
- the irregularities in the surface of the creped or ribbed paper forming the ply I form a multitude of small passageways as indicated at ID in Figs. 5 and 6 through which the escaping air may pass to an opening in the next ply. The movement of the air in this manner is indicated diagrammatically by the arrows in Fig. 6.
- the paper forming the creped or ribbed ply I may be creped or ribbed. at practically no additional expense by subjecting the sheet of paper to the action of a creping or rlb-. bing roll immediately after electric perforation of the sheet.
- the use of a creped or ribbed paper for the ply I also adds strength 3 and elasticity to the bag due to the ability of such paper to stretch considerably before rupturing. In electro-perforated bags of this type air entrapped in the bag during filling will escape but the material being placed in the bag does not; pass through such perforations.
- plies ll of creped or ribbed paper interposed between plies I2 of smooth surfaced paper.
- plies l3 of crinkled or ribbed paper are placed on either side of a ply M of smooth sur-, faced paper.
- a single ply l5 of creped or ribbed paper is positioned next to a single ply [6 of smooth surfaced paper.
- the illustrated embodiments of the invention demonstrate the essential feature of placing :80 sheet or ply of perforated, creped or ribbed paper next to .asheet orgply of, perforated, smooth. surfacepaperto provide passageways through which the air passing through perforations in .one .of
- the plies may-move without being blocked in any way until it reaches a perforation in the adjacent ply. It will be understood that various changes .andmodifications maybe made in the illustrated embodiments of Y the invention without departing from theLscope of the invention as defined bythe .claiins appended hereto.
- a' bag consisting of a plurality of plies .ofsheet material forming a body of 'the bag, the combination of a ,ply of sheet material having a plurality of perforations distributed throughout the surface area thereofand a ply of sheet material having a crinkled surface and a plurality ,gof fperforations distributed throughout the sur- V and'in the .crinkl'edsurface ply.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Making Paper Articles (AREA)
Description
April 15, 1952 J. w. MEAKER PERFORATED MULTIPLE PLY BAG 2 SHEETS-SHEET 1 Filed July 13, 1948 INVENTOR. v Jofin VIZ/Weak er A Tram/Em v lzlai April 1952 J. w. MEAKER 2,593,328
PERFORATED MULTIPLE PLY BAG Filed July 15, 1948 2 SHEETS-SHEET 2 JNVENTOR. Jo/m MK Meaker" ATTOfi/WEYJ Patented Apr. 15, 1952 ll UNITED STATES PATENT OFFICE 2,593,328 PERFORATED MULTIPLE PLY BAG John W. Meaker, New York, N .Y. Application July 1a, 1948, Serial No. 38,525
trically perforated to permit entrapped air to "escape therethrough as the bag is being filled. "It-will be understood that the term "paper as used herein refers to material of the character indicated as distinguished from woven materials. An object of the present invention is to provide for the more rapid escape of air through the plies that have been electrically perforated and form the body of a bag such as shown in my United States Patent No. 2,340,546, dated February 1, 1944. By increasing the rate at which entrapped air may pass through the body of a bag as the bag is being filled, the speed at which the bag is filled may be increased and thus, the production of the filling machines may be correspondingly increased.
Other objects and advantages of my invention will be apparent and best understood from the following description and the accompanying drawings in which:
Fig. 1 is a side view of a valved type of multiple ply bag embodying my invention;
Figs. 2 and 3 are section views on an enlarged Fig. 1;
Fig. 4 is a perspective view on a greatly enlarged scale of a portion of the bag shown in Fig. 1 and illustrating the arrangement of the plies therein;
Fi s. 5 and 6 are and views taken from the side and top, respectively, of Fig. 4;
Figs. '7 and 8 are end views taken from the side and top, respectively, of a modified form of a multiple ply bag structure embodying my invention;
Figs. 9 and 10 are end views taken from the side and top, respectively, of another form of multiple ply bag structure embodying my invention; and
Figs. 11 and 12 are end views taken from the side and top, respectively, of another form of multiple ply bag structure embodying my invention.
Referring to the drawings in detail. a multiple ply bag I of the valved type is shown in Fig. 1. This type of bag is shown for the purposes of illustrations only and it will be understood that the present invention may be utilized in other types of multiple ply bags as well. Bags of the valved type are well known and are commonly 4 Claims. (Cl. 229-55) scale taken along the lines 22 and 3-3 of used for packaging commodities such as cement or the like. The bag I is provided with a valved opening 2 at one corner thereof through which the bag may be filled from a suitable filling device and it has sewn end closures 3.
For the purposes of strengthening the bag and to obtain otherdesired properties such as water'- proofed outer surface, the body of the bag I is formed from a number of superimposed plies of paper. Each of the plies are in thefo'rm of a tube with its vertical edges overlapped and pasted together as indicated at 4, 5 and 6 in Figs. 1 and 2.
As shown and described in myUnited States Patent No. 23 10546 of February 1, 1944, each of the plies thatform the body of the bag I may be electrically perforated to provide minute, burrless perforations through which the air ontrapped in the bag during filling may escape, but which are small enough to prevent the commodity with which the bag is filled from passing through such perforations or water from entering such, perforations. As shown, for example, in my patent referred to above, the electrically perforated plies that have previously been used to form the bag body are smooth surfaced and under the pressure due to filling of the bag, there is a tendency for the contacting smooth surfaces 'of adjoining plies to be forced into such close contact that the flow of the air that is escaping 30 through the plies is restricted in passing from one ply to the next.
I have discovered that by interposing a. ply I of electrically perforated paper having crinkled surfaces such as a creped or ribbed paper between plies 8 and 9 of electrically perforated, smooth surfaced paper so as to provide passageways ill for the air passing between the plies that the rate at which the air entrappedin the bag may flow through the plies is greatly increased and thus, the rate at which the bag can be filled is also increased. The irregularities in the surface of the creped or ribbed paper forming the ply I form a multitude of small passageways as indicated at ID in Figs. 5 and 6 through which the escaping air may pass to an opening in the next ply. The movement of the air in this manner is indicated diagrammatically by the arrows in Fig. 6.
If desired, the paper forming the creped or ribbed ply I may be creped or ribbed. at practically no additional expense by subjecting the sheet of paper to the action of a creping or rlb-. bing roll immediately after electric perforation of the sheet. As is well known, the use of a creped or ribbed paper for the ply I also adds strength 3 and elasticity to the bag due to the ability of such paper to stretch considerably before rupturing. In electro-perforated bags of this type air entrapped in the bag during filling will escape but the material being placed in the bag does not; pass through such perforations.
In the embodiment of the invention illustrated in Figs. '7 and 8, five plies are shown with plies ll of creped or ribbed paper interposed between plies I2 of smooth surfaced paper. In the embodiment of the invention illustrated in Figs. 9 and 10, plies l3 of crinkled or ribbed paper are placed on either side of a ply M of smooth sur-, faced paper. And in the embodiment of the invention illustrated in Figs. 1'1 and 12 a single ply l5 of creped or ribbed paper is positioned next to a single ply [6 of smooth surfaced paper.
The illustrated embodiments of the invention; demonstrate the essential feature of placing :80 sheet or ply of perforated, creped or ribbed paper next to .asheet orgply of, perforated, smooth. surfacepaperto provide passageways through which the air passing through perforations in .one .of
.the plies may-move without being blocked in any way until it reaches a perforation in the adjacent ply. It will be understood that various changes .andmodifications maybe made in the illustrated embodiments of Y the invention without departing from theLscope of the invention as defined bythe .claiins appended hereto.
I claim: ;1.lIn amultiple ply bag, a bag body consist- :mg ;of aplurality of plies of paper, said-plies be- ;ing superimposed on each other and at least one of the plies of each pair of adjoining plies having tending through said plies with the perforations in one ply being connected with the perforations in the ,adjoiningply through the passageways formed by said surface irregularities.
2. In a' bag consisting of a plurality of plies .ofsheet material forming a body of 'the bag, the combination of a ,ply of sheet material having a plurality of perforations distributed throughout the surface area thereofand a ply of sheet material having a crinkled surface and a plurality ,gof fperforations distributed throughout the sur- V and'in the .crinkl'edsurface ply.
distributed throughout the surface area thereof,
said crinkled surface contacting with the smooth surface of the first-mentioned ply and forming passageways "between the plies communicating with perforationsin each of the plies.
4:111 'abag-consisting of a plurality of plies forming a body portion of the bag, the combination of a pair of plie of electrically perforatable sheet .material, each of said plies having substantial smooth opposing surfacesand a,-plur ality of electrical perforations distributed throughout the surface areas thereof, and a, ply eof .electrically perforatable sheet material havingcrinkled surfaces interposed between the smooth surfaces of the first-mentionedpa'ir of plies and a-plurality of electrical perforations distributed throughout the surface area thereof, said crinkled surfaces contacting with thesmooth surfaces of -the.firstmentioned plies and defining passageways com;- municating with perforations inthe pair of ,plies JOHN w.
REFERENCES CITED The following references "are of recordin the file of this patent:
UNITED STATES PATENTS Great Britain Feb. 11,1932
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US38525A US2593328A (en) | 1948-07-13 | 1948-07-13 | Perforated multiple ply bag |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US38525A US2593328A (en) | 1948-07-13 | 1948-07-13 | Perforated multiple ply bag |
Publications (1)
Publication Number | Publication Date |
---|---|
US2593328A true US2593328A (en) | 1952-04-15 |
Family
ID=21900450
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US38525A Expired - Lifetime US2593328A (en) | 1948-07-13 | 1948-07-13 | Perforated multiple ply bag |
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Cited By (43)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2988207A (en) * | 1958-08-18 | 1961-06-13 | John L Lovelace | Container for ready-mix concrete |
US3085737A (en) * | 1962-04-25 | 1963-04-16 | Olin Mathieson | Bag with interrupted longitudinal seam |
US3268152A (en) * | 1964-11-27 | 1966-08-23 | Thermoplastic Ind Inc | Self-sealing valve bag |
US3364663A (en) * | 1965-06-28 | 1968-01-23 | Nat Union Electric Corp | Vacuum cleaner bag |
US3507443A (en) * | 1968-07-01 | 1970-04-21 | Jiffy Mfg Co | Ventilated multi-ply bag |
US3625348A (en) * | 1969-08-08 | 1971-12-07 | Dow Chemical Co | Packaging articles in containers having self-adhering inner layers |
US3628720A (en) * | 1968-11-18 | 1971-12-21 | Windmoeller & Hoelscher | Plastics sacks provided with venting or aerating perforations |
US4132347A (en) * | 1976-07-07 | 1979-01-02 | Showa Seitai Kogyo Kaisha Ltd. | Moisture proof bags provided with blow-in ports and method of manufacturing the same |
USRE30098E (en) * | 1969-08-08 | 1979-09-18 | American Can Company | Packaging articles in containers having self-adhering inner layers |
EP0126816A1 (en) * | 1983-05-25 | 1984-12-05 | St. Regis Corporation | Bags, particularly multiwall bags |
US4550441A (en) * | 1984-07-18 | 1985-10-29 | St. Regis Paper Company | Vented bag |
US4672684A (en) * | 1983-10-06 | 1987-06-09 | C I L, Inc. | Thermoplastic bag |
US4744466A (en) * | 1981-12-08 | 1988-05-17 | Chase Bag Company | Quick opening pinch seal bag |
US4866786A (en) * | 1988-04-18 | 1989-09-12 | Sentinel Bag & Paper Company, Inc. | Ovenable bag |
US5399022A (en) * | 1993-02-25 | 1995-03-21 | Ab Specialty Packaging, Inc. | Venting structure for a multiple ply bag |
US5405561A (en) * | 1993-08-31 | 1995-04-11 | Dowbrands L.P. | Process for microperforating zippered film useful for manufacturing a reclosable zippered bag |
US5553942A (en) * | 1994-03-11 | 1996-09-10 | Robert Bosch Gmbh | Laminate for producing packaging containers |
US5655842A (en) * | 1993-12-28 | 1997-08-12 | Packs Co., Ltd. | Wrapping device |
US5988881A (en) * | 1997-06-18 | 1999-11-23 | Bpb Plc | Paper sack |
US6134863A (en) * | 1997-11-11 | 2000-10-24 | Silberline Limited | Process for packaging metal pigment powder |
US20030179960A1 (en) * | 2002-02-12 | 2003-09-25 | Sylvain Beaulieu | Multiwall paper bag |
US20040190796A1 (en) * | 2001-07-13 | 2004-09-30 | Yakima Packaging Automation, Inc. | Baling bag for automatic bag loading |
US20040221551A1 (en) * | 2001-07-13 | 2004-11-11 | Germunson & Main Llc | Method for automated produce bag loading |
FR2858302A1 (en) * | 2003-07-30 | 2005-02-04 | Nordson Corp | WATERPROOF AND AIR-PERMEABLE CONTAINER AND METHOD FOR MANUFACTURING THE SAME |
US6986605B1 (en) | 2003-04-23 | 2006-01-17 | Exopack-Technology, Llc | Multiwall vented bag, vented bag forming apparatus, and associated methods |
US20080102233A1 (en) * | 2004-05-20 | 2008-05-01 | Dekunder Staci A | Porous Films |
WO2008058079A2 (en) * | 2006-11-06 | 2008-05-15 | Marko I.R.D.C. | Plastic bag with improved air evacuation structure |
DE102008007384A1 (en) * | 2008-02-01 | 2009-08-06 | Nordenia International Ag | Package e.g. side gusseted bag, for e.g. gypsum, has foil connected with interior of package by ventilation openings in inner layer, where ventilation openings and openings at outer layer are spaced at distance to each other |
US7874731B2 (en) | 2007-06-15 | 2011-01-25 | S.C. Johnson Home Storage, Inc. | Valve for a recloseable container |
US7967509B2 (en) | 2007-06-15 | 2011-06-28 | S.C. Johnson & Son, Inc. | Pouch with a valve |
US20110158562A1 (en) * | 2009-12-31 | 2011-06-30 | Emballage Rouville Inc. | Deflatable bag with laterally perforated liner and non-adjacent humidity barrier |
US20120040134A1 (en) * | 2005-01-07 | 2012-02-16 | Ole-Bendt Rasmussen | Laminate of thermoplastic film materials exhibiting throughgoing porosity |
US20120134606A1 (en) * | 2008-10-20 | 2012-05-31 | Borchardt Michael G | Non-Continuously Laminated Multi-Layered Bags With Ribbed Patterns And Methods of Forming The Same |
US20120269465A1 (en) * | 2011-04-25 | 2012-10-25 | The Glad Products Company | Thermoplastic Films With Visually-Distinct Stretched Regions and Methods For Making The Same |
US20120269466A1 (en) * | 2011-04-25 | 2012-10-25 | The Glad Products Company | Multi-Layered Films With Visually-Distinct Regions and Methods of Making The Same |
US20130243982A1 (en) * | 2010-11-16 | 2013-09-19 | The Glad Products Company | Discontinuously laminated film structures with improved visual characteristics |
US20140314344A1 (en) * | 2013-04-18 | 2014-10-23 | Nordfolien Gmbh | Packaging container for bulk materials |
US20150010251A1 (en) * | 2009-09-03 | 2015-01-08 | The Glad Products Company | Embossed draw tape bag |
WO2013116264A3 (en) * | 2012-01-31 | 2015-06-18 | The Glad Products Company | Non-continuously laminated multi-layered bags with ribbed patterns and methods of forming the same |
DE202018100246U1 (en) * | 2018-01-17 | 2019-04-30 | Dy-Pack Verpackungen Gustav Dyckerhoff Gmbh | Multi-ply bag |
US10543658B2 (en) | 2009-11-16 | 2020-01-28 | The Glad Products Company | Ribbed film structures with pigment created visual characteristics |
US10549467B2 (en) | 2009-11-16 | 2020-02-04 | The Glad Products Company | Ribbed film structures with voiding agent created visual characteristics |
WO2023274929A1 (en) * | 2021-07-02 | 2023-01-05 | Haver & Boecker Ohg | Ventilation device and method for producing same |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB366620A (en) * | 1930-11-14 | 1932-02-11 | John William Winskill | Improvements in multi-ply paper bags |
US2046146A (en) * | 1935-04-22 | 1936-06-30 | Bemis Bro Bag Co | Bag |
US2084296A (en) * | 1936-01-20 | 1937-06-15 | Union Bag & Paper Corp | Carbon black sack |
US2237499A (en) * | 1937-03-19 | 1941-04-08 | Ragnar K Osterdahl | Vacuum-cleaner bag |
US2340546A (en) * | 1939-12-13 | 1944-02-01 | John W Meaker | Container |
US2493349A (en) * | 1946-11-30 | 1950-01-03 | St Regis Paper Co | Bag with extensile sealed liner and method for making same |
-
1948
- 1948-07-13 US US38525A patent/US2593328A/en not_active Expired - Lifetime
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB366620A (en) * | 1930-11-14 | 1932-02-11 | John William Winskill | Improvements in multi-ply paper bags |
US2046146A (en) * | 1935-04-22 | 1936-06-30 | Bemis Bro Bag Co | Bag |
US2084296A (en) * | 1936-01-20 | 1937-06-15 | Union Bag & Paper Corp | Carbon black sack |
US2237499A (en) * | 1937-03-19 | 1941-04-08 | Ragnar K Osterdahl | Vacuum-cleaner bag |
US2340546A (en) * | 1939-12-13 | 1944-02-01 | John W Meaker | Container |
US2493349A (en) * | 1946-11-30 | 1950-01-03 | St Regis Paper Co | Bag with extensile sealed liner and method for making same |
Cited By (56)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2988207A (en) * | 1958-08-18 | 1961-06-13 | John L Lovelace | Container for ready-mix concrete |
US3085737A (en) * | 1962-04-25 | 1963-04-16 | Olin Mathieson | Bag with interrupted longitudinal seam |
US3268152A (en) * | 1964-11-27 | 1966-08-23 | Thermoplastic Ind Inc | Self-sealing valve bag |
US3364663A (en) * | 1965-06-28 | 1968-01-23 | Nat Union Electric Corp | Vacuum cleaner bag |
US3507443A (en) * | 1968-07-01 | 1970-04-21 | Jiffy Mfg Co | Ventilated multi-ply bag |
US3628720A (en) * | 1968-11-18 | 1971-12-21 | Windmoeller & Hoelscher | Plastics sacks provided with venting or aerating perforations |
US3625348A (en) * | 1969-08-08 | 1971-12-07 | Dow Chemical Co | Packaging articles in containers having self-adhering inner layers |
USRE30098E (en) * | 1969-08-08 | 1979-09-18 | American Can Company | Packaging articles in containers having self-adhering inner layers |
US4132347A (en) * | 1976-07-07 | 1979-01-02 | Showa Seitai Kogyo Kaisha Ltd. | Moisture proof bags provided with blow-in ports and method of manufacturing the same |
US4744466A (en) * | 1981-12-08 | 1988-05-17 | Chase Bag Company | Quick opening pinch seal bag |
EP0126816A1 (en) * | 1983-05-25 | 1984-12-05 | St. Regis Corporation | Bags, particularly multiwall bags |
US4672684A (en) * | 1983-10-06 | 1987-06-09 | C I L, Inc. | Thermoplastic bag |
US4550441A (en) * | 1984-07-18 | 1985-10-29 | St. Regis Paper Company | Vented bag |
US4866786A (en) * | 1988-04-18 | 1989-09-12 | Sentinel Bag & Paper Company, Inc. | Ovenable bag |
US5399022A (en) * | 1993-02-25 | 1995-03-21 | Ab Specialty Packaging, Inc. | Venting structure for a multiple ply bag |
US5405561A (en) * | 1993-08-31 | 1995-04-11 | Dowbrands L.P. | Process for microperforating zippered film useful for manufacturing a reclosable zippered bag |
US5839832A (en) * | 1993-12-28 | 1998-11-24 | Packs Co. Ltd. | Wrapping device |
US5655842A (en) * | 1993-12-28 | 1997-08-12 | Packs Co., Ltd. | Wrapping device |
US5553942A (en) * | 1994-03-11 | 1996-09-10 | Robert Bosch Gmbh | Laminate for producing packaging containers |
US5988881A (en) * | 1997-06-18 | 1999-11-23 | Bpb Plc | Paper sack |
US6134863A (en) * | 1997-11-11 | 2000-10-24 | Silberline Limited | Process for packaging metal pigment powder |
US20040190796A1 (en) * | 2001-07-13 | 2004-09-30 | Yakima Packaging Automation, Inc. | Baling bag for automatic bag loading |
US20040221551A1 (en) * | 2001-07-13 | 2004-11-11 | Germunson & Main Llc | Method for automated produce bag loading |
US20030179960A1 (en) * | 2002-02-12 | 2003-09-25 | Sylvain Beaulieu | Multiwall paper bag |
US6883964B2 (en) * | 2002-02-12 | 2005-04-26 | Hood Packaging Corporation/Emballage Hood Corporation | Multiwall paper bag |
US6986605B1 (en) | 2003-04-23 | 2006-01-17 | Exopack-Technology, Llc | Multiwall vented bag, vented bag forming apparatus, and associated methods |
US20080063323A1 (en) * | 2003-07-30 | 2008-03-13 | Philippe Chevilliard | Moisture-Repellent Receptacle and Method for the Production Thereof |
FR2858302A1 (en) * | 2003-07-30 | 2005-02-04 | Nordson Corp | WATERPROOF AND AIR-PERMEABLE CONTAINER AND METHOD FOR MANUFACTURING THE SAME |
WO2005012121A1 (en) * | 2003-07-30 | 2005-02-10 | Nordson Corporation | Moisture-repellent receptacle, and method for the production thereof |
US20080102233A1 (en) * | 2004-05-20 | 2008-05-01 | Dekunder Staci A | Porous Films |
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