US3446420A - Flexible mouth container - Google Patents

Flexible mouth container Download PDF

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Publication number
US3446420A
US3446420A US3446420DA US3446420A US 3446420 A US3446420 A US 3446420A US 3446420D A US3446420D A US 3446420DA US 3446420 A US3446420 A US 3446420A
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Prior art keywords
container
fastening strip
sheet
embodiment
portion
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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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Franz G Rinecker
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American Velcro Inc
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American Velcro Inc
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    • AHUMAN NECESSITIES
    • A44HABERDASHERY; JEWELLERY
    • A44BBUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
    • A44B18/00Fasteners of the touch-and-close type; Making such fasteners
    • 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
    • B65D33/00Details of, or accessories for, sacks or bags
    • B65D33/16End- or aperture-closing arrangements or devices
    • B65D33/24End- or aperture-closing arrangements or devices using self-locking integral or attached closure elements, e.g. flaps
    • 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
    • B65D2313/00Connecting or fastening means
    • B65D2313/02Connecting or fastening means of hook-and-loop type

Description

May 27, 1969 Filed Feb. 8, 1968 FEQ? F. 5. RINECKER 3,446,420

FLEXIBLE MOUTH CONTAINER Sheet 1 of 4 INVENTCR FRANZ e. RINECKER ATTORNEYS y 1969 F. G. RINECKER 3,446,420

FLEXIBLE MOUTH CONTAINER Filed Feb. 8, 1968 Sheet 419 of 4 INVENTOR FRANZ G. RINECKER BY FJm /S. ilk mi n, T 101 gA l mfi ATTORNEYS ay 27, 1969 F. G. RINECKER 3,446,420

FLEXIBLE MOUTH CONTAINER Filed Feb. 8, 1968 Sheet 3 014 FIG. l3 3o |a+ mvemon FRANZ s. RINECKER BY Mid/w ds, L A 011m, 5 10' Adams ATTOR NEYS F. e. RINECKER 3,446,420 FLEXIBLE MOUTH CONTAINER Filed Feb. 8, 1968 Sheet 4 L f 53 a: i'f ff f:

INVENTOR FRANZ G. RINECKER 47 BY mni vmonclS, LZZJM. 10% A0 0 ATTORNEYS Unite States Patent i 3,446,420 FLEXIBLE MOUTH CONTAINER Franz G. Rinecker, Wayne, N.J., assignor to American Velcro, Inc., a corporation of New Hampshire Filed Feb. 8, 1968, Ser. No. 703,926 Int. Cl. B65d 33/16, 27/14 U.S. Cl. 22962 6 Claims ABSTRACT OF THE DISCLOSURE Background of the invention This invention relates to a container of the type having a mouth defined by a flexible sheet, and more particularly it relates to a container in which a convoluted marginal edge portion is confined in a fold between separable fastening means of the hook and loop type characterized by the properties that placing a surface containing hooks into face-to-face contact with a surface containing loops will result in a plurality of hooks engaging a plurality of loops which resist separation parallel to the interfacial plane of engagement but are readily separable by peeling forces, applied substantially normal to this plane.

In many instances, it is desirable to provide a container which is readily sealable and reusable and preferably one that is fluid tight. For example, in the storage of foodstuffs such as bread it i required that the container both protect the bread from drying out and be resealable after each use. In more rigorous applications, a container must both provide a seal of suflicient integrity either to prevent the entry of foreign fluids or to prevent leakage of contained fluids and be readily operable and resealable. Examples of the foregoing include containers for storage of gas masks and containers for shipment of fluids which are to be delivered by parachute drop. In the former instance, gas masks must be carried by soldiers in containers to protect them from water damage while the soldier is crossing a river or otherwise operating in muddy or swampy terrain. It is further required that the gas mask container be opened quickly and easily to give ready access to the gas mask. In the latter instance, it is common military practice to airdrop supplies to troops in isolated areas. The items so delivered include liquids such as smoke-free cooking fuel. It has been found that metal containers are not suitable for this purpose because they are too heavy and bulky and for a lightweight container to be suitable for this purpose it must have the capability of withstanding pressures which are encountered when the container hits the ground. Furthermore, such containers must provide easy access for cleaning before reuse. A lightweight container which is able to withstand both internal and external fluid pressure, which allows ready access to its contents, and which is easily resealable would be particularly suitable for the above purposes. However, no such container has heretofore been available.

Summary of the invention The invention is in a container of the type having a mouth defined by a flexible sheet which can be opened 3,446,420 Patented May 27, 1969 wide and closed by flattening the sheet into two sheet portions and convoluting marginal end portions of the sheet together. The improvement includes a first fastening strip provided on an outside surface of one portion of the flattened flexible sheet to define therebetween a marginal edge portion of a flexible sheet of suflicient size to be convoluted into a plurality of convolutions to seal the opening. A second complementary fastening strip is provided on the outside surface of the other opposed portion of the flattened flexible sheet and is spaced a distance further from the endmost edge of the flexible sheet than the first fastening to permit the first fastening strip to be folded over the convoluted marginal edge portion and into registry with the second marginal strip to confine the convoluted marginal edge portion within the fold. The fastening strips have outer surfaces defined by hooking elements of the type characterized by the property of placing a surface containing hooks into face-to-face contact with a surface containing loops, a plurality of hooks engage a plurality of loops which resist separation parallel to the interfacial plane of engagement but are readily separable by peeling forces applied substantially normal to this plane. Such an arrangement will generally provide a fluid-tight container.

The present invention preferably utilizes the hook and loop fasteners such as those described in US. Patents Nos. 2,717,427 and 3,009,235 which includes separable members which comprise sheets of woven fabric having raised loop threads of synthetic material wherein the loops of one member are cut at their outer extremities to form hooks while the loops of the other member remain uncut. It is also contemplated that a given member may comprise both hooks and loops. When the two members of the fasteners are pressed together in face-to-face relationship there is a substantial engagement of hook threads with loop threads. A considerable effort must be applied to separate the members unless they are peeled apart. In that event, the members may be separated quite easily.

The present invention has a versatility and convenience of operation that is not approached in the prior art. Aside from providing a seal which both resists internal fluid pressure and external fluid pressure, the present container may be opened and closed repeatedly without any loss in the effectiveness of the seal. Furthermore, the present container is particularly useful in applications that require instant access to the container contents.

Brief description of drawings FIG. 1 is an elevation of a first embodiment of the container of the present invention in an unsealed position;

FIG. 2 is an elevation of a first embodiment of the container of the present invention in a first partially sealed position;

FIG. 3 is an elevation of a first embodiment of the present invention in a second partially sealed position;

FIG. 4 is an elevation of a first embodiment of the container of the present invention in a sealed position;

FIG. 5 is a section taken susbtantially along line 5-5 of FIG. 1;

FIG. 6 is a section taken substantially along line 66 of FIG. 4;

FIG. 7 is an elevation of a second embodiment of the container of the present invention in an unsealed position;

FIG. 8 is a section taken substantially along line 8-8 of FIG. 7;

FIG. 9 is an end view of a second embodiment of the container of the present invention in a first partially sealed position;

FIG. 10 is an end view of a second embodiment of the container of the present invention in a second partially sealed position;

FIG. 11 is a perspective view of a second embodiment of the container of the present invention in a sealed position;

FIG. 12 is an elevation of a third embodiment of the container of the present invention in an unsealed position;

FIG. 13 is an elevation of a third embodiment of the container of the present invention in a first partially sealed position;

FIG. 14 is an elevation of a third embodiment of the container of the present invention in a second partially sealed position;

FIG. 15 is an elevation of a third embodiment of the container of the present invention in a third partially sealed position;

FIG. 16 is an elevation of a third embodiment of the container of the present invention in a sealed position;

FIG. 17 is a section taken substantially along line 17-17 of FIG. 12;

FIG. 18 is a section taken substantially along line 18-18 of FIG. 13;

FIG. 19 is a section taken substantially along line 1919 of FIG. 14;

FIG. 20 is a section taken substantially along line 2020 of FIG. 16;

FIG. 21 is an elevation in partial section of a fourth embodiment of the container of the present invention in an open position;

FIG. 22 is an elevation of a fourth embodiment of the container of the present invention in a first partially sealed position;

FIG. 23 is an elevation of a fourth embodiment of the container of the present invention in a sealed position;

FIG. 24 is a section taken substantially along line 24-- 24 of FIG. 21;

FIG. 25 is a section taken substantially along line 2525 of FIG. 22; and

FIG. 26 is a section taken substantially along line 26-26 of FIG. 23.

Description of the preferred embodiment Referring initially to FIGS. 1-6, a first embodiment of a container of the invention is shown. The container which will be shown in each embodiment to be described hereinbelow will basically comprise a flexible bag on which the improved means for sealing and releasably opening the container will be disclosed. It is to be understood, however, that while the improvements of the invention have application to flexible bag-type containers, the invention resides primarily in the arrangement which permits this ease of opening and sealing of a container having a mouth defined by a flexible sheet of the type which can be opened wide and closed by flattening the sheet into two sheet portions and convoluting the marginal end portions of the flexible sheet. Thus, the flexible mouth can be provided on a rigid container or in a flexible bag which is inserted into and sealed inside a rigid container.

The flexible bag-like container 10 is formed of two sheets which are sealed along their side edges 11 and 12 and at the bottom portion 13 but open at the top or mouth 14 of the container. Thus, at the mouth 14 of the container there are provided two sheet portions 15 and 16 (see FIG. which can be flattened together and the marginal end portions convoluted to seal the opening in the container as shown in FIG. 6.

A first fastening strip 17 is adhesively sealed to the outside surface of one sheet portion 16 and is spaced from the endmost edge 18 of the flexible sheet and defining between the fastening strip and the endmost edge 18 a marginal edge portion 19 of suflicient size to be convoluted into a plurality of convolutions to seal the opening at the endmost edge 18. A second complementary fastening strip 20 is provided on the outside surface of the other opposed sheet portion 15 and is spaced a distance turther from t e endmost e ge 13 of t e flex b e sheet 4 than the first fastening strip 17 to permit the first fastening strip to be folded over the convoluted marginal edge portion 19 and into registry with the second fastening strip 20 and to confine the convoluted marginal edge portion within the fold 21, as shown in FIG. 6.

The fastening strips 17 and 20 are hooking elements which also are raised woven members which have a plurality of upstanding hooking elements extending from their outermost surfaces. These hooking elements, as they will be described throughout the description, are preferably of the type described in the patents referred to above and the hooking elements on fastening strip 17 can comprise raised loop threads of a synthetic material such as a superpolyamide which have been cut at their outer extremities to form hooks 22 or can be raised loop threads which are uncut to provide loop 23 such as shown in fastening strip 20. These hooking elements of the hook and loop type are characterized by the property of placing a surface containing hooks into face-to-face contact with a surface containing loops will result in a plurality of hooks engaging a plurality of loops which resist separation parallel to the interfacial plane of engagement but are readily separable by peeling forces applied substantially normal to this plane. While hooks are shown on fastening strip 17 and loops on fastening strip 20, the hooks and loops can be interchanged and it is also contemplated that the fastening strips can comprise both hooks and loops and still fall within the scope of this invention.

To close the container 10 in this first embodiment, lateral edge portions 24 and 25 at the mouth of the container are infolded so that the endmost edge 18 is confined within a lateral dimension which is less than the length of the fastening strips 17 and 20. The marginal end portion 19 is then convoluted a plurality of times until the first fastening strip 17 is positioned in parallel spaced relationship with the second fastening strip 20 on the same side of the container as shown in FIG. 3. At this point the spaced relationship is such that one more fold of the flexible sheet will bring the hooking elements of the first fastening strip into face-to-face contact with the booking elements of the second fastening strip 20, as shown in FIGS. 4 and 6, and the convoluted marginal edge portion 19 is confined within the fold 21 so as to effect a fluidtight seal.

A second embodiment of the invention is shown in FIGS. 7-11. Here a similar type container 25 of flexible sheet material is provided and two sheet portions 26 and 27 are defined along a marginal end portion 28 which is to be convoluted together in the same manner described with respect to the first embodiment. There are a few differences in this second embodiment. A first fastening strip 29 having the booking elements as described is provided in parallel spaced relationship with the second fastening strip 30 and both the first and second fastening strips 29 and 30 extend laterally substantially the same width of the flattened sheet portions 26 and 27 and endmost edge 31 of the container 25, is therefore convoluted into a plurality of convolutions as shown in FIG. 9 without infolding the side edges of the sheet portion as was the case in the first embodiment. Also the first fastening strip 29 is backed by a semi-rigid plastic strip 32 so as to add some rigidity to the flexible sheet and preserve good surface to surface contact between the fastening strips 29 and 30 while in use. This semi-rigid strip can also be used with advantage with certain applications of the other embodiments. Further, as shown in FIGS. 10 and 11, a tab member 33, formed with one surface of hooking elements complementary to the first fastening strip 29, is inserted between the first fastening strip 29 and the second fastening strip 30 when they are placed in face-to-face sealing contact. This tabular member 33 can then be used as a means to open a closed container by merely grasping e ab 33 an s app g the fi st and seco d fasteni g strips out of engagement. This tabular arrangement can also be used with advantage in the other embodiments.

In FIGS. 12-20 a third embodiment of the invention is shown. In this third embodiment a flexible container 35 comprised of two sheet portions 36 and 37 have a first fastening strip 38 attached to the outside surface of one of the sheet portions 36 and spaced from its endmost edge 39 a distance suificient to provide a marginal edge portion which can be convoluted into a plurality of convolutions. A second fastening strip 39 is provided spaced from the first fastening strip 38 a distance greater from the endmost edge 39 than the first fastening strip to permit the first fastening strip 38 to be folded into face-toface contact with the second fastening strip 39. Shown in this embodiment the first fastening strip is adhesively secured along the lower longitudinal half 40 which is spaced furtherest from the endmost edge 39' and is free along its upper half portion 42, as shown in FIG. 18. Thus, after the marginal end portion 40 of the flexible sheet is convoluted a plurality of times, the upper longitudinal half 42 of the first fastening strip 38 is folded over convoluted marginal end portion 40. This permits the convoluted end portion to be wound into tighter convolutions than the one-half thickness of the first fastening strip. The first fastening strip is then in the position shown in FIGS. 14 and 19 and the entire end portion is then folded so that the upper half portion 42 of the first fastening strip is brought into face-to-face contact with the second fastening strip 39.

In this embodiment a third fastening strip 43 is provided spaced from the second fastening strip 39 a distance greater from the endmost edge of the flexible mouth than is the second fastening strip but on the same outside surface of the flexible sheet as is the second fastening surface. Thus, in the final fold, the contacted first and second fastening strips 38 and 39 respectively with the convolution confined within the fold therebetween is folded one additional time to bring the second lower longitudinal end 41 of the first fastening strip into contact with the third fastening strip 43 thereby compressing the convoluted marginal edge portion within the folds as shown in FIG. 20 and insuring a better fluid-tight seal.

A fourth embodiment is shown in FIGS. 21-26. Here a flexible bag-type container 45 is provided similar to that described with respect to the earlier embodiments. Two flexible sheet portions 46 and 47 are flattened into opposed relationship and the flexible sheet defines a mouth opening at the endmost edge 48. A first fastening strip 49 of a different type than the previous embodiments is provided. It comprises a longitudinal strip which is sealed at its lower longitudinal end portion 50 at the outside portion of one sheet portion 46 and has hooking elements 51 provided on the upper longitudinal portion of the strip 49 and extending from the same surface of the strip 49 and is adhesively sealed at portion 50. A second fastening strip 52 is provided spaced from the endmost edge 48 a distance further than the first fastening strip 49. A marginal end portion 53 of the flexible sheet portions 46 and 47 is convoluted a plurality of times and brought into contact with the second fastening strip 52. The first fastening strip 51 is then folded around the convoluted marginal end portion 53 and its hooking elements 51 are brought into surface-to-surface contact with the hooking elements of the fastening strip 52 as shown in FIG. 26 to confine the convoluted marginal edge portion 52 within the fold and provide a fluid-tight seal.

I claim:

1. In a container having a mouth defined by a flexible sheet which can be opened Wide and closed by flattening the sheet into two sheet portions and convoluting marginal end portions thereof, the improvement in combination herewith comprising a first fastening strip provided on an outside surface of one portion of the flattened flexible sheet and spaced from the endmost edge of the flexible sheet to define therebetween a marginal edge portion of flexible sheet of suflicient size to be convoluted into a plurality of convolutions to seal the opening, and a second complementary fastening strip provided on the outside surface of the other opposed portion of the flattened flexible sheet, the second complementary fastening strip being spaced a distance further from the endmost edge of the flexible sheet than the first fastening strip and being disposed substantially parallel to the first fastening strip and to the convoluted marginal edge portion to permit the first fastening strip to be folded over the convoluted marginal edge portion and into registry with the second fastening strip and confine the convoluted marginal edge portion within the fold, said fastening strips having outer surfaces defined by hooking elements of the hook and loop type characterized by the property of placing a surface containing hooks into face-to-face contact with a surface containing loops, a plurality of hooks engage a plurality of loops which resist separation parallel to the interfacial plane of engagement but are readily separable by peeling forces applied substantially normal to this plane.

2. A container according to claim 1 wherein the convoluted marginal portion is so confined that it is fluidtight.

3. A container according to claim 1 wherein at least one of said fastening strips is provided with a semi-rigid backing.

4. A container according to claim 1 wherein said first fastening strip is flexible and has one elongated marginal edge portion attached to the flexible sheet and a free edge portion With the surface containing the hooking elements facing toward the marginal edge of the sheet, said second fastening strip and the attached elongated marginal edge portion of the first fastening strip being in substantially opposed relationship on opposite flexible sheet portions with the free end portion of the first sheet extending toward the endmost edge of the unfolded marginal portions, the free end of said first fastening strip being folded over said folded marginal portion in registry with the second fastening strip and confining the folded marginal portion within the folded over first fastening strip.

5. A container according to claim 1 wherein a third fastening strip having hooking elements complementary to said first strip is provided spaced from said second strip in a direction away from the endmost edge and said first strip is provided with a sufflcient width to fold over one additional turn into registry with the third fastening strip.

6. A container according to claim 1 wherein a tab is secured to the first fastening strip with a portion of the tab exposed when the first fastening strip is in face-toface engagement with the second fastening strip so that separation of the strips can be effected by pulling the ta References Cited UNITED STATES PATENTS 2,329,055 9/ 1943 Kegan 229-85 3,125,277 3/1964 Kozlowski 229-27 3,256,882 6/1966 Huber. 3,313,471 4/1967 Dickard et al. 22962 FOREIGN PATENTS 5 60,708 4/ 1944 Great Britain.

DAVID M. BOCKENEK, Primary Examiner.

US. Cl. X.R. 24204; 229

US3446420A 1968-02-08 1968-02-08 Flexible mouth container Expired - Lifetime US3446420A (en)

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Cited By (50)

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US3655118A (en) * 1970-06-15 1972-04-11 American Velcro Inc Flexible mouth container
US4071186A (en) * 1976-06-15 1978-01-31 Bagcraft Corporation Of America Self-closing bag
US4079767A (en) * 1976-06-22 1978-03-21 Howard Langhorne M Bag construction
US4236658A (en) * 1978-05-04 1980-12-02 Kallman Research Corporation System for holding articles to objects
US4323189A (en) * 1980-05-27 1982-04-06 Arvey Corporation Closable pouch
US4480752A (en) * 1982-08-09 1984-11-06 Bemis Company, Inc. Pinch closure bags with opening feature and method of manufacturing them
US4515273A (en) * 1983-03-30 1985-05-07 Bemis Company, Inc. Bag with tab and method of forming
EP0160619A2 (en) * 1984-04-30 1985-11-06 SIG Schweizerische Industrie-Gesellschaft Reclosable package
US4570792A (en) * 1984-09-20 1986-02-18 Conway Kay S Case for curling iron or similar article
US4584201A (en) * 1984-02-17 1986-04-22 Borden, Inc. Resealable package, method of making and use
US4686814A (en) * 1985-06-03 1987-08-18 Yanase Waitch K.K. Bag for containing flowable foodstuff
US4706297A (en) * 1986-04-16 1987-11-10 Minigrip, Inc. Foldable top bag and method
US4946289A (en) * 1987-02-06 1990-08-07 Union Camp Corporation Reclosable open mouth bag
US4979933A (en) * 1988-04-27 1990-12-25 Kraft, Inc. Reclosable bag
US5056934A (en) * 1991-01-18 1991-10-15 Del Puerto Marketing Company Twist and tuck freezer bag
WO1993015969A1 (en) * 1992-02-18 1993-08-19 Thompson Dental Manufacturing Co. Reusable, resealable sterilization bag
US5244279A (en) * 1992-06-15 1993-09-14 Ralston Purina Company Bulk bag
US5287571A (en) * 1992-10-06 1994-02-22 Rademacher Debora L Sleeping bag carrying and storage enclosure with automatic closure means
US5435648A (en) * 1993-09-24 1995-07-25 Berkoff; William Reusable popcorn popping container
WO1996029256A1 (en) * 1995-03-21 1996-09-26 Motherwell Services Ltd. A method and associated apparatus for making a re-closable package
US5715943A (en) * 1995-01-20 1998-02-10 Thompson Dental Mfg Co, Inc Reusable sterilization pouch and its method of production
US5816709A (en) * 1997-10-08 1998-10-06 Demus; Andrew Leak-proof personal travel bag
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US6146016A (en) * 1999-05-28 2000-11-14 Michael A. Mucci Handle closure system
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US8858077B2 (en) 2010-04-12 2014-10-14 Velcro Industries B.V. Reclosable pouch closures and related packaging and methods
CN104229280A (en) * 2014-09-05 2014-12-24 成都市金橙包装制造有限公司 Sealing method of handbag and handbag used for sealing method
US20160073717A1 (en) * 2014-09-11 2016-03-17 Jon Jon Mulshenock Waterproof Pocket
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US9504295B2 (en) 2012-05-31 2016-11-29 Velcro BVBA Releasable fastenings with barriers

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Cited By (65)

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Publication number Priority date Publication date Assignee Title
US3655118A (en) * 1970-06-15 1972-04-11 American Velcro Inc Flexible mouth container
US4071186A (en) * 1976-06-15 1978-01-31 Bagcraft Corporation Of America Self-closing bag
US4079767A (en) * 1976-06-22 1978-03-21 Howard Langhorne M Bag construction
US4236658A (en) * 1978-05-04 1980-12-02 Kallman Research Corporation System for holding articles to objects
US4323189A (en) * 1980-05-27 1982-04-06 Arvey Corporation Closable pouch
US4480752A (en) * 1982-08-09 1984-11-06 Bemis Company, Inc. Pinch closure bags with opening feature and method of manufacturing them
US4515273A (en) * 1983-03-30 1985-05-07 Bemis Company, Inc. Bag with tab and method of forming
US4584201A (en) * 1984-02-17 1986-04-22 Borden, Inc. Resealable package, method of making and use
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