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Publication numberUS2929123 A
Publication typeGrant
Publication dateMar 22, 1960
Filing dateJul 25, 1957
Priority dateJul 25, 1957
Publication numberUS 2929123 A, US 2929123A, US-A-2929123, US2929123 A, US2929123A
InventorsSchneideman Samuel
Original AssigneeSchneideman Samuel
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Slide clasp bag-end opener and closer
US 2929123 A
Abstract  available in
Previous page
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Claims  available in
Description  (OCR text may contain errors)

March 22, 1960 s. SCHNEIDEMAN I 2,929,123


This invention relates to a slidefastener, andmore particularly to a disposable slide fastener for paperbags or the like.

A primary object of this invention is the provision of an improved slide fastener which may be applied to a paper bag, so that the same may be reclosed after initial opening, thus preserving the contents of the bag and obviating the necessity of using the entire contents at one time.

An additional object of the invention is the provision of a simplified fastener of this character which may be simply and inexpensively manufactured, and which is of such relatively low cost that the same may be used once and disposed of, or alternatively, detached from the bag to which it is initially applied and reused if desired.

A further object of the invention is the provision of a device of this character which is relatively simple to apply to or remove from a selected paper bag.

An additional object of the invention is the provision of a device which will provide a relatively tight closure for the bag to which it is applied, which may be opened and closed with a minimum of effort and difliculty.

Still other objects reside in the combinations of elements, arrangements of parts, and features of construction, all as will be more fully pointed out hereinafter and disclosed in the accompanying drawing wherein:

Figure 1 is a side elevational view of the assembled slide fastener detached from a bag.

Figure 2 is a perspective view of the fastener shown as applied to a bag, the fastener being in open position.

Figure 3 is a side elevational view of the slide comprising a portion of the instant invention.

Figure 4 is a rear end elevational view of the slide of Figure 3.

Figure 5 is a front elevational view of the slide.

Figure 6 is a plan view of one of the fastening elements disassociated from a bag.

Figure 7 is a side view of the construction of Figure 6.

Figure 8 is a side view similar to Figure 7, but showing the other element of the fastener.

Figure 9 is a sectional view taken substantially along the line 99 of Figure 7 as viewed in the direction indicated by the arrows.

Figure 10 is a sectional view taken substantially along the line 1010 of Figure 8 as viewed in the direction indicated by the arrows.

Similar reference characters refer to similar parts throughout the several views of the drawing.

Having reference now to the drawings in detail, the slide fastener of the instant invention is comprised essentially of three elements, a movable slide 3, a male interlocking clasp element 4, and a female interlocking clasp element 5.

The slide 3 is comprised of a block-like portion 6, the front end of which is provided with a pair of opposed tongues 7, which are arcuate in configuration, and form an ovoidal opening or slot at the front end of the fastener, which is open at its bottom as at 8. The rear end of the fastener 3 includes a separating tongue 9, which tates Patent 2 isextendedinwardly and downwardly from the rear. edge of block 6, and extends between thetips. oftthemembers 7 into the slot 8.

The male clasp member 4 comprises a plate or sheet, which is provided on its inner surface with ridges l0, and on its upper surface with an arcuate outwardly turned flange or interlocking member 11, which is adapted to coact, in a manner to be more fully described herein-, after with a complementary flangev 12 which is also arcuate in configuration, and which comprises a portion of the female member 5. One end of the member 4 is outwardly bowed, as indicated at 13, and the other, end.-in-: cludes a depending portion 14 which is provided with. an ofiset tang. 15, whichis adapted to engage, in a manner to be more fully described hereinafter about the end. or corner portion of a bag. The member 5is also provided with ridges-1.6, and hasv one end outwardly bowed asat 17, the arcuate configuration of the end 17 being opposite to that of the end 13. The opposite end of the member 5 is also provided with a depending portion 16a, which is provided with a tang or tongue 17a, oppositely disposed to the tongue 15, and also adapted to engage an end portion of the bag.

The member 5 is also provided with an upwardly extending finger engaging portion 18, which is outwardly bowed at its extremity 19, in order to facilitate disengagement of the complementary arcuate flanges 13 and 17.

In the use and operation of the device, the two complementary members 4 and 5 are attached to opposite sides of the separated edges 21 and 22 of an opened bag 20,

arranged in open position, as indicated in Figure 2. The slide 3 is in the position shown, and the opened end portions may be separated as indicated. When the slide is moved to the left as viewed in Figure 2, the arms 7 coact with the flanges 11 and 12 to cause the flange 12 to overlap and encircle the flange 11, thus effecting a relatively tight closure of the bag structure. When it is desired to open the bag, the slide is moved again to the position as shown in Figure 2, during which operation the tongue 9 serves to disengage the flanges 11 and 12, whereupon the bag may be readily separated by means of a finger engaging member 18.

The tongues or tangs 15 and 17 serve as a stop member to prevent disengagement of the slide 3 from the complementary clasp members when moved in one direction, while the outwardly flared ends 13 and 17 serve to prevent the total disengagement of the slide when moved in the opposite direction.

The complementary fastener members 4 and 5 may be secured to the top of the bag along its edges in any desired manner, as by means of a suitable adhesive. The

device is preferably constructed of an inexpensive material, such as plastic, or relatively light metal, and is relatively inexpensive so that it may be employed only once if desired, and disposed of, or alternatively may be removed from the bag to which it is initially applied and reutilized as desired.

From the foregoing it will now be seen that there is herein provided an improved slide fastener, which accomplishes all of the objects of this invention, and others, including many advantages of great practical utility and commercial importance.

As many embodiments may be made of this inventive concept, and as many modifications may be made in the embodiment herein before shown and described, it is to be understood that all matter herein is to be interpreted merely as illustrative and not in a limiting sense.

I claim:

In a slide fastener the combination of male and female interlocking fastening elements, each comprised of an elongated strip adapted to be adhesively secured to an edge of a bag to be closed, each strip having a downwardly reverted arcuate flange, the flange on the female element being of greater cross sectional extent than the flange of the male element and adapted to envelope the latter, and a slide member movable on said strip, said slide member including a block portion and a pair of arcuate converging closing arms forming an ovoidal opening and having a slot at its lower edge, said opening being of a dimension to compress the flange of the female element about the flange of the male element when said slide is moved in one direction, and 21 depending opening tongue at the other end of said block extending to a point in alignment with and below the slot formed by the ends of said closing arms, adapted to disengage said male and female flanges when said slide is moved in the opposite direction, the adjacent ends of said fastening elements at one end being oppositely outwardly flared to provide a stop for said slide, the other ends of said fastening elements having tangs thereon to form a stop for said slide at said other end, and a finger engaging tongue disposed centrally on one of said elements.

References Cited in the file of this patent UNITED STATES PATENTS Freedman Ian. 24, 1939 Dobbs July 11, 1950 Madsen Oct. 14, 1952 Ponx -2 Aug. 23, 1955 Morner Ian. 15, 1957 Post Apr. 23, 1957 FOREIGN PATENTS Australia Mar. 25, 1955 Austria Apr. 25, 1953 Belgium Nov. 30, 1951 France Feb. 16, 1948 France Mar. 18, 1953 France Oct. 1, 1956 France Nov. 5, 1956

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US2144755 *Jan 11, 1937Jan 24, 1939Eugene L AlexanderClosure device
US2514750 *Feb 11, 1949Jul 11, 1950Frank G DobbsClosure
US2613421 *Jan 27, 1951Oct 14, 1952Flexico U S A S ASlide fastener
US2715759 *Jul 1, 1954Aug 23, 1955Talon IncSlide fastening device
US2777181 *Sep 15, 1951Jan 15, 1957George Morner HansWaterproof closure
US2789609 *Jul 9, 1956Apr 23, 1957Flexigrip IncActuator for zippers and pouch embodying the same
AT174708B * Title not available
AU162189B * Title not available
BE507101A * Title not available
FR936319A * Title not available
FR1031136A * Title not available
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Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4332344 *Feb 8, 1980Jun 1, 1982Strodthoff Glenn GResealable package
US6164826 *Oct 9, 1998Dec 26, 2000Reynolds Consumer Products Inc.Resealable spout for side-gusseted packages
US6325543 *Aug 25, 2000Dec 4, 2001Illinois Tool Works Inc.Gusseted zipper bag
US6805485 *Oct 2, 2002Oct 19, 2004Illinois Tool Works Inc.Gusseted reclosable package with slider-operated zipper
US7134192Jun 10, 1999Nov 14, 2006The Glad Products CompanyClosure device
US7137942Jul 1, 2005Nov 21, 2006The Glad Products CompanyApparatus and process for assembling a slider
US7144159 *Jan 29, 2003Dec 5, 2006Illinois Tool Works Inc.Gusseted reclosable package with slider-operated zipper
US7204641 *Sep 18, 2003Apr 17, 2007Illinois Tool Works Inc.Pouch with spout
US7461434May 25, 2006Dec 9, 2008S.C. Johnson Home Storage, Inc.Slider for closure assembly
US7506416May 25, 2006Mar 24, 2009S.C. Johnson Home Storage, Inc.Closure assembly and slider therefore
US7574781Jun 15, 2006Aug 18, 2009S.C. Johnson Home Storage, Inc.Closure assembly with slider
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US7797802Nov 29, 2007Sep 21, 2010S.C. Johnson & Son, Inc.Actuating member for a closure assembly and method
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US20040131284 *Sep 18, 2003Jul 8, 2004Stolmeier Robert C.Pouch with spout
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US20060265842 *May 25, 2006Nov 30, 2006Hoffman Jeffrey SClosure assembly and slider therefore
US20060265843 *May 25, 2006Nov 30, 2006Ackerman Bryan LSlider for closure assembly
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US20080247681 *Apr 6, 2007Oct 9, 2008Stolmeier Robert CPouch with spout
US20100142858 *Nov 12, 2009Jun 10, 2010Alfons KrusePlastic bag with pour spout and slide closure
US20120045152 *Aug 23, 2010Feb 23, 2012Turvey Robert RSlider actuated opening feature
EP1405797A2 *Sep 29, 2003Apr 7, 2004Illinois Tool Works, Inc.Gusseted reclosable package
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WO2004026704A3 *Sep 19, 2003Sep 2, 2004Pliant CorpPouch with spout
U.S. Classification24/399, 383/64, 24/427
International ClassificationA44B19/16, A44B19/26, B65D33/25, A44B19/10, A44B19/24
Cooperative ClassificationA44B19/267, B65D33/2591, A44B19/16
European ClassificationB65D33/25C