Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.


  1. Advanced Patent Search
Publication numberUS3266711 A
Publication typeGrant
Publication dateAug 16, 1966
Filing dateMay 17, 1965
Priority dateMay 17, 1965
Publication numberUS 3266711 A, US 3266711A, US-A-3266711, US3266711 A, US3266711A
InventorsSong June E
Original AssigneeSong June E
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Bag closure apparatus
US 3266711 A
Abstract  available in
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)

Aug. 16, 1966 I J. E. SONG 3,266,711

BAG CLOSURE APPARATUS Filed May 17, 1965 2!; 22 2y I [511:3 inf-1:25:1


izuze @502 1c United States Patent 3,266,711 BAG CLOSURE APPARATUS June E. Song, 117 N. Lincoln Ave., Addison, Ill. Filed May 17, 1965, Ser. No. 456,429 6 Claims. (Cl. 22962) The present invention relates to an apparatus for use in closing bags and the following disclosure thereof is offered for public dissemination upon the grant of a patent therefor.

Many food products today are packaged in bags of cellophane, plastic, wax paper, or the like. Probably in the majority of instances, the purchaser does not remove all of the contents at one time. Instead, the bag is put away after removing a portion of the contents. Unless the bag is tightly closed when it is put away, many such items deteriorate as a result of being exposed to ambient air conditions. The present invention is intended for use in providing a closure for bags to tightly reseal them after they have once been used. While it is contemplated that the principal use of the present invention will be with bags of relatively thin material such as are used for the packaging of food products, the use of the invention is not so limited. It could be employed equally advantageously with large bags of relatively heavy materials such as are used with the packaging of fertilizers, chemicals, and the like, which are deleteriously affected by ambient air conditions.

While the general problem solved by the present invention has been previously recognized, the existing devices for closing bags have a number of disadvantages that are eliminated or overcome by the present invention. In the first place, the devices of the present invention are very inexpensive to manufacture. They may be formed of plastic from extrusions or by injection molding in large quantities. They are not deleteriously affected by the wear that occurs during use or otherwise. They are extremely simple to use. In use, they provide a secure fluid-tight seal at the mouth of the bag and assist in preventing damage to the bag, such as sometimes occurs as a result of tearing, punctures, and the like. The full surface contact provided by embodiments of the invention ensure a tight and reliable seal with moderate compression.

Further objects and advantages will become apparent from the following description taken in conjunction with the drawings, in which:

FIGURE 1 is an elevational view of the two components of an embodiment of the invention;

FIGURE '2 is a perspective view showing the manner in which the interfitting of the two members is obtained in the course of closing the mouth of a bag;

FIGURE 3 is a transverse section showing a bag closed 'by the members; and

FIGURE 4 is an elevational view showing an alternative embodiment.

Although the following disclosure offered for public dissemination is detailed to ensure adequacy and aid understanding, this is not intended to prejudice that purpose of a patent which is to cover each new inventive concept therein no matter how others may later disguise it by variations in form or additions or further improvements. The claims at the end hereof are intended as the chief aid toward this purpose; as it is these that meet the requirement of pointing out the parts, improvements or combinations in which the inventive concepts are found.

Basically, the embodiments of the present invention consist of a male member, generally 10, and a female member, generally 11. The male member is generally cylindrical in configuration. While it may be solid, I


prefer that it be annular in cross section, i.e. in the form of a tube, as best seen in FIGURE 3. The female member 11 also is substantially cylindrical except for a slot 12 extending the length thereof. The external diameter of the male member is substantially equal to the internal diameter of the female member for bags of plastic film or the like. For a heavy, multiple ply, bag, the difference in diameters would be less than twice the material thickness.

The walls, which form the female member 11 and define the slot 12, extend substantially more than onehalf the circumference of a circle as the member is viewed in cross section (see FIGURE 3). While these walls could come practically together were the material from which the female member 11 is formed sufiiciently resilient to permit the insertion and removal of the male member, I prefer that they not do so. It is better to have the female member of a material that is somewhat less resilient and to have the slot 12 occupy only about one-fourth of the circumference of the circle defined by the walls of the female member.

The Walls of the female member are chamfered at the ends as seen at 13. This greatly facilitates the insertion and removal of the male member. In effect, the slot 12 widens at the chamfered end 13 so that at that point it is relatively easy to push the male member between the Walls of the female member. When closing a bag (as seen in FIGURE 2), the chamfer at the left end facilitates starting the operation. When fully closed, the handle means of the male member extends beyond the right end; thus, the chamfer at the right end facilitates the opening operation.

Preferably, the members 10 and 11 are formed of a plastic. While they need not be of the same plastic, the manufacture is simplified in most instances by using a single material. The plastic for the female member particularly should not be completely rigid or brittle, but should have sufficient plasticizer so that it is resiliently deformable to accommodate the insertion and removal of the male member.

The manner in which the invention is employed in the sealing of the mouth of a bag is best illustrated in FIGURES 2 and 3. At one of the chamfered ends 13, an end of the male member is readily pushed between the walls of the female member. With the bag 15 closed and laid across slot 12, the male member now is pushed through the slot, in the fashion of the closing of a pair of scissors across the mouth of the bag. As the male member moves into the slot, it cams the walls open immediately ahead of it and, at the same time, pushes the bag into the recess defined by the interior of the female member. Thus, when the male member 10 has been fully pushed through the slot and is seated in the interior of the female member, the bag 15 is wrapped about the male member 10, as best seen in FIGURE 3.

To separate the two members and thus release the bag, the reverse procedure is employed. By holding the female member and grasping one end of the male member, that end is pulled outwardly (substantially at right angles to the axis of the female member). To facilitate grasping the male member, it is made somewhat longer than the female member, as best seen in FIGURE 1. This excess length of the male member forms a handle means to permit it to be grasped. Commencing from the end at which the members are grasped, the male member cams the walls of the female member apart. This is facilitated by the chamfer on the end. After the two members return to approximately the FIGURE 2 position, they separate completely and the bag 15 is released.

In the embodiment of FIGURE 4, there is a female member, generally 20, having a slot with chamfered ends 21. The male member, generally 22, is generally cylindrical, but with a slot 23 along the back side. To provide the male member with sufficient rigidity against crushing, it has a plurality of transverse ribs 24. A cross sectional view of member 20 would be substantially the same as that of member 11, as seen in FIGURE 3. A cross sectional view of member 22 would be the same as that of member in FIGURE 3 except for a slot along the exterior side thereof and the internal reinforcing ribs.

Members 20 and 22 are provided with a link or hinge 26 formed of the same material of which the two members are formed. Member 20 has a handle 27 while member 22 has a handle 28. A tab 29 with a hole 30 therethrough is provided to enable the apparatus to be hung on a hook, nail, or the like. This tab is located midway between the ends of the female member. The members 20 and 22 would be closed and opened about a bag in the same manner as described in connection with FIGURES 2 and 3.

In use the bag closing apparatus of the invention will be clamped across the bag adjacent the mouth of the bag when the bag is full. As the bag is emptied, the apparatus will be reapplied adjacent the contents and thus farther from the mouth. This reduces the ambient air contained within the package.

I claim:

1. A closure device for bags of a material of a given thickness, said device comprising: an elongated, cylindrical male member extending transversely across said bag at the mouth thereof with a portion of the material being wrapped partially around said member, and an elongated female member overlying said portion of said material and pressing it between the members, said female member having a wall of generally cylindrical configuration with an internal diameter greater than the external diameter of the male member by an amount less than twice said material thickness, said walls defining a slot extending the length of one side of the female member, said slot being a gap in the otherwise cylindrical walls and being substantially smaller than one-half the circumference of the female member, at one end said walls tapering away from each other progressively from a point adjacent the end to the end to increase the width of the slot at said end, said female member being formed of a semi-resilient plastic to permit said walls to be spread apart to allow the male member and material to move through said slot to separate the members and to move into the slot to engage the members and serve as a closure for the bag.

2. An apparatus as set forth in claim 1, wherein said male member has handle means secured thereto.

3. An apparatus as set forth in claim 1, wherein both members are of the same plastic material and are connected by a strap of the same material serving as a hinge.

4. An apparatus as set forth in claim 1, wherein said female member has a hanging tab with an opening therethrough affixed to the female member midway between the ends thereof.

5. An apparatus as set forth in claim 2, wherein at both the ends of the female member said walls t-aper away from each other.

6. A closure device as set forth in claim 1, wherein an end of the male member is connected to an end of the female member by a strap formed of the same material of the members and forming a hinge, one of said members having a handle on the end thereof opposite said one end, said handle extending outwardly at about right angles to said one end.

References Cited by the Examiner UNITED STATES PATENTS 2,338,927 1/1944 Gerendas 229 2,601,568 6/1952 Sussenbach et al 229-65 2,852,054 9/1958 Motley 215--99 JOSEPH R. LECLAIR, Primary Examiner.

R. PRESHOCK, Assistant Examiner.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US2338927 *May 16, 1940Jan 11, 1944Miksa GerendasClosing and clamping device
US2601568 *Feb 18, 1948Jun 24, 1952Presstite Engineering CompanyClosure for flexible tubing
US2852054 *Nov 23, 1956Sep 16, 1958Motley Murat BrunsonContainer and closure therefor
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3315849 *Sep 15, 1965Apr 25, 1967Herzig Albert MClosure for collapsible tube
US3346883 *Oct 21, 1965Oct 17, 1967Louise SandlerReceptacles
US3481007 *Apr 29, 1968Dec 2, 1969Scarritt Nathan JrWatertight closure for plastic bags
US3485528 *Jul 5, 1968Dec 23, 1969Hyman KramerChairs
US3639952 *Oct 27, 1969Feb 8, 1972Gillemot George WSafety package assembly and divider clamp therefor
US3700019 *Jan 20, 1971Oct 24, 1972Clifford Ralph BullockClosure for flexible container
US3732987 *Sep 22, 1971May 15, 1973Adams JSupport for clothes and the like
US3957068 *Mar 10, 1975May 18, 1976Cox William FQuick detachable escape fastener
US3979807 *Jun 23, 1975Sep 14, 1976Endura Manufacturing CorporationTufting assembly for upholstered furniture
US4034150 *Feb 20, 1976Jul 5, 1977Southern Weaving CompanyAccordian fold cable with flexible clips over the folds
US4040562 *Mar 9, 1973Aug 9, 1977Casard Industries, Inc.Plastic bag and carrier handle
US4128922 *Aug 19, 1977Dec 12, 1978Hutchison Charles LSealing device
US4156445 *Oct 20, 1977May 29, 1979Martti KontinenFolded seal for plastic sheeting and forming apparatus
US4275485 *Dec 10, 1979Jun 30, 1981Hutchison Charles LSealing devices
US4988016 *Jan 30, 1989Jan 29, 1991James P. HawkinsSelf-sealing container
US5054168 *Jun 5, 1990Oct 8, 1991Gandy Kenneth AClip providing improved storage and handling of flexible bags
US5079806 *Aug 1, 1990Jan 14, 1992Lasso L. P.Pivotal colsure
US5282811 *Apr 16, 1992Feb 1, 1994Cook Pacemaker CorporationTwo part surgical ligating clip, applicator and method of use
US5337987 *Apr 23, 1993Aug 16, 1994Sawatsky Kim RArticle storage organizer
US5347671 *Sep 17, 1992Sep 20, 1994Hunts Larry DBag opening and reclosing device
US5371925 *Apr 23, 1993Dec 13, 1994Sawatsky; Kim R.Bag sealing assembly
US5603417 *Mar 13, 1995Feb 18, 1997Blair; Norman T.Bag sealing apparatus
US5613282 *Sep 22, 1995Mar 25, 1997Deddens, Sr.; John A.Sealing apparatus
US5742983 *Nov 16, 1995Apr 28, 1998Lo; LukeAirtight clip device for inflation nozzle of an air bag
US5983460 *Feb 11, 1997Nov 16, 1999Hyde; Allen L.Bag closure
US6233786 *Sep 7, 1999May 22, 2001Bo-Hon LinHandle for a bag
US6678922Jul 6, 2002Jan 20, 2004Alan Elbert ComerBag closure or clamp made from pliable, resilient hose
US6702794 *Apr 23, 2002Mar 9, 2004Bristol-Myers Squibb CompanyOstomy pouch clamp
US7648276 *Nov 20, 2001Jan 19, 2010Source Vagabond Systems Ltd.Sealing device for flexible liquor container
US8113559 *Jun 24, 2008Feb 14, 2012Combes Brian HSheet attachment device and method of use
US9078502 *Jun 17, 2011Jul 14, 2015Bayer Consumer Care AgClosure for pouches
US9156592 *Dec 20, 2013Oct 13, 2015Philip Burnie SmithRapid closing security container
US20030198704 *Apr 23, 2002Oct 23, 2003Blum John L.Ostomy pouch clamp
US20030229377 *Jun 10, 2002Dec 11, 2003Thomas TongTube and rod suture clamping system
US20050050853 *Sep 4, 2003Mar 10, 2005Barry ByronApparatus and method for sealing a bag
US20080155790 *Dec 27, 2007Jul 3, 2008Hsu Wei KReusable, Autoclaveable Closure Device for a Flexible Bag
US20080313869 *Jun 24, 2008Dec 25, 2008Combes Brian HSheet attachment device and method of use
US20090211059 *Oct 22, 2008Aug 27, 2009Barry ByronApparatus and method for sealing a bag
US20110277940 *Nov 17, 2011Sung-Po TsaiAir Sealing Device for bag
US20120023709 *Feb 2, 2012Hsu Wei KReusable, autoclaveable closure device for a flexible bag
US20120102890 *Jun 17, 2011May 3, 2012Fily Sebastien LucienClosure for pouches
DE29609802U1 *Jun 3, 1996Aug 14, 1996Pro Pack Handels Und VertriebsSackverschlu▀
WO1990009331A1 *Jan 23, 1990Aug 23, 1990Bernard Junior BrooksBag sealer
WO1991018805A1 *Jun 5, 1991Dec 12, 1991Gandy Kenneth AClip providing improved storage and handling of flexible bags
WO1992003353A1 *Oct 12, 1990Mar 5, 1992Weaver Earl WBag sealer
WO1993020756A1 *Apr 16, 1993Oct 28, 1993Cook Pacemaker CorporationSurgical ligating clip, applicator and method of use
WO2004067388A2Jan 23, 2004Aug 12, 2004Rustydog Inc.Clip type system for bags and methods of manufacture
U.S. Classification383/13, 24/30.50R, 24/462, 383/68, D09/434, 383/22
International ClassificationB65D33/16, B65D33/17
Cooperative ClassificationB65D33/1666
European ClassificationB65D33/16F1