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Publication numberUS2995174 A
Publication typeGrant
Publication dateAug 8, 1961
Filing dateJul 15, 1958
Priority dateJul 20, 1957
Publication numberUS 2995174 A, US 2995174A, US-A-2995174, US2995174 A, US2995174A
InventorsWang Herman
Original AssigneeWang Herman
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Machine for producing bags with at least one closing clip
US 2995174 A
Abstract  available in
Previous page
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Claims  available in
Description  (OCR text may contain errors)

Aug. 8, 1961 H. WANG 2,995,174

MACHINE FOR PRODUCING BAGS WITH AT LEAST ONE CLOSING CLIP Filed July 15, 1958 United States Patent 2,995,174 MACHINE FOR PRODUCING BAGS WITH AT LEAST ONE CLOSING CLIP Herman Wang, Oscarsgate 74, Oslo, Norway Filed July -15, 1958, Ser. No. 748,644 Claims priority, application Norway July 20, 1957 1 Claim. (Cl. 1541.6)

The present invention relates to a method and means for producing bags with at least one clip preferably of metal, to keep the bag closed after being filled, the clip being attached by means of a binder.

It is known to attach such clips on already formed bags, in practice, however, it seems difficult to attach the clips on the inside of the bag or between the two bag foils, if the bag is lined, when the clips are to be attached in a machine at the highest possible speed.

The purpose of the invention is to produce such bags on the inside of which or between its two bag foils clips are attached in a machine without the speed of the production being reduced to a noticeable extent.

This is according to the invention achieved by attaching the clip to the bag material before being formed to a bag.

One embodiment of means for producing bags according to the invention will be described in detail with reference to the accompanying drawing which shows a part of a machine for production of lined bags with a clip. One of the bag foils 1 is fed from a supply roll 2 between two pressure rollers 3, one of which being driven. The second bag foil 4 is fed from a supply roll 5 together with the first bag foil 1 between two rollers 6 in such a way that the clip 7 lies between the two bag foils. The clip material 8 is fed from a supply roll 9 over binder application means 10 which is rotatable in a binder bath. Above the roller 10 is arranged an eccentric, driven roller 11 which intermittently presses the clip material 8 against the roller 10, in such a way that it is fed in between the pressure rollers 3 with the binder side facing the bag material 1, a cutting means 12 which is arranged between the pressure rollers 3 and the roller 11 cuts the clip 7 in desired lengths.

Patented Aug. 8, 1961 For the attachment of more clips side by side, further clip materials 8 may be arranged side by side, suitably spaced, a corresponding number of supply rolls 9 being arranged and the rollers 10 and '11 and the cutting means 12 are given the necessary width.

I claim:

In a machine for producing bags with at least one clip preferably of metal to keep the bag closed after being filled, in which the clip is attached by means of a binder to the bag material before the latter is formed into a bag, the machine comprising two cooperating pressure rollers one of which is driven and between which the bag-forming material from a supply roll is fed continuously, means for intermittently feeding a strip of clip material from a. supply roll toward and for delivering its leading end onto the bag material entering between the two pressure rollers, a binder bath located adjacent the strip of clip material on the intake side of the pressure rollers, a rotatable roller located in the binder bath engaging the strip of clip material for applying a binder to the face of the strip of clip material to be engaged with the bag material as it enters the two pressure rollers, the means for intermittently feeding the strip of clip material comprising a driven eccentric roller located opposite the binder-applying roller for intermittently pressing the strip of clip material thereagainst and advancing the strip of clip material toward the two pressure rollers, and clip-cutting means located between the binder bath and the two pressure rollers for cutting clips of desired length in succession from the leading end portion of the strip of clip material, whereby clips are cut and attached to the bag material at spaced intervals therealong as the bag material is continuously moved through the two pressure rollers.

References Cited in the file of this patent UNITED STATES PATENTS 1,905,446 Dewey et al Apr. 25, 1933 2,372,617 Trew Mar. 27, 1945 2,821,238 Lakos Jan. 28, 1958 2,862,846 Blackford Dec. 2, 1958

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US1905446 *Aug 17, 1929Apr 25, 1933Eastman Kodak CoFilm backing paper making machine
US2372617 *Dec 31, 1942Mar 27, 1945Trew James WMethod of producing composite panels
US2821238 *Nov 22, 1955Jan 28, 1958Kurt Korber & Co K GProcess for manufacturing selfigniting cigarettes
US2862846 *Nov 23, 1953Dec 2, 1958Johnson & JohnsonMethod of making plastic strip adhesive bandages
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3835755 *Mar 21, 1973Sep 17, 1974Canadian IndBag tie dispenser
US4337058 *May 19, 1980Jun 29, 1982Automated Packaging Systems, Inc.Method of making a container strip having inserts
US4718215 *Nov 27, 1985Jan 12, 1988Baxter Travenol Laboratories, Inc.Apparatus and method for attaching fitments to flexible containers
US5968310 *Feb 12, 1998Oct 19, 1999James E. BruntonClosable bag and method apparatus for making same
US6043406 *Feb 27, 1998Mar 28, 2000Ferris Mfg, Corp.Thin film wound dressing and method for making same
US6346653Jan 24, 2000Feb 12, 2002Ferris Mfg. Corp.Thin film wound dressing and method for making same
US6350339 *Mar 2, 1995Feb 26, 2002Ferris Pharmaceuticals Inc.Non-stretching wound dressing and method for making same
US9102443Mar 30, 2012Aug 11, 2015Intercontinental Great Brands LlcFlexible packages incorporating a twistable polymer reclose material
U.S. Classification156/519, 156/552
International ClassificationB31B19/90
Cooperative ClassificationB31B19/90, B31B2219/90
European ClassificationB31B19/90