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Número de publicaciónUS3537636 A
Tipo de publicaciónConcesión
Fecha de publicación3 Nov 1970
Fecha de presentación21 Ene 1969
Fecha de prioridad14 Feb 1968
Número de publicaciónUS 3537636 A, US 3537636A, US-A-3537636, US3537636 A, US3537636A
InventoresRobert D Rochette
Cesionario originalRobert D Rochette
Exportar citaBiBTeX, EndNote, RefMan
Enlaces externos: USPTO, Cesión de USPTO, Espacenet
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US 3537636 A
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O Un1ted States Patent 1 13 537 636 [72] Inventor Robert D.Rochette [56] References Cited 74 Maple Circle, Dollard Des Ormeaux, UNITED STATES PATENTS Quebecicanada 331,357 l2/l885 Weinberger 229/65 1 1 pp 792,626 651,710 6/1900 Gorman 229/65 1 Wed Jan-21,1969 1,960,232 5/1934 Corbe 229/65x [31;] g f nt 32 3,201,030 8/1965 Pollack 229/65 e {33} "on y Canada Primary Examiner-David M. Bockenek [3] I 12,471 Attorney- Fetherstonhaugh and Co.

[ RECLOSABLE PACKAGE ABSTRACT: A bag closure for bags formed in tubular form 1C|8lm,4Dl'flWln8 8 comprising a strip of bendable inelastic material forming a [52] U.S.Cl. 229/65 longitudinal Seam for tubular g. end P f {51] 33/16 strip adjacent the open end of the bag adapted to be folded n w Search 229/; with the end portion ofthe bag to hold the folded end portion 93/35 ofthe bag closed.

1 l l3"' l l 1 1 I I 2 i lg: I l 2 111 Ii}: 1 11:: i

I I ii: I lll 1 H4 Il 4 1 hl l IH.J---l7 1 H Patented Nov. 1970 INVENTOR R. D. ROCHETTE A TTORNEYS ticularly to a foldable bag of flexible sheet material having a -of this type of closure is that it is not effectively operable for a larger number of foldove'rswhich are required when the contents of the bag are depleted. Also the'repeatedbending of the tabs at the same point adjacent the sides of the bag weakens the tabs and reduces'their effectiveness as the closure is repeatedly used. Also, production of such bags is relativelyrexpensive since the closure strip must be fixed tothe bag subsequent to its manufacture'in a separateoperation.

It is an object of the present'invention to provide a method of producing foldablebags'in whichclosures are attached'to the bags during their continuous manufacture.

Another object of the inventionis to provide afoldable bag having a closure which is not materially weakened asthecontents of the bag are depleted and the closure is repeatedly reused.

Afurther object of the invention'is toprovide afoldable bag having a closure which effectively clamps thefolds of the bag irrespective of the number of such folds.

' Still another object of the invention is to provide a foldable bag having a closure which serves also toreinforce' the bottom of the bag. i

In its broadest aspect theinvention consists ofa method of producing foldable bags, comprising: (a) forming a continuous tube "of flexible sheet material, (b) fixing a continuous band of bendable inelastic material longitudinally on the tube, (c) severing the tube intoindividual lengths, and (d) sealing one end of each individual length of tubing to form a'bag. Preferably the tube is formedby laterally folding a continuous sheet of material and sealing togetherthe overlapping lateral edges with the band of "reinforcing material interposed between them.

In another aspect theflinvention consists of a closure for a foldable bag of flexible sheet material comprising at least one band of inelastic reinforcing material fixedto the wall of the bag transverse to its opening or mouth and'bendable to secure at least one lateral fold in the bag. The band of reinforcing v material is preferably a wire of suitable gauge running the length of the bag.

An example embodiment of the invention isshown' in 'the accompanying drawings inwhich:

FIG. 1 is a face view of a bag ready'for use, one-oftheover lapping sheet portions 'being'partly broken 'awayto showthe reinforcing band; v

F1612 is a cross sectiontake'n along theline 2-2 of FIG. 1;

FIG. 3 is a side view of the bag shown in Flfifilrfilled and 7 sealed; and I FIG. 4 is aview similar 'to'that of FIG. 3 but showing the manner of folding and sealing the bag-when part of the conwhich consists of a wire '17 of suitable gauge sealed between a The bottom of bag 10 is formed by folding the tube of sheet material 11 transversely along a line 19 adjacent one open end to form a flap 20 which is sealed to the continguous portion of sides 12, wire 17'being bent with flap 20 to aid in holding the the flap against sides 12 in its sealed position.

Tofill bag 10 the tube formed by sheet I1 is expanded to provide an opening or mouth 21 at its upper end. When bag 10 has been filled, mouth 21 may be closed and the bag sealed at its top in the same manner as its bottom portion, i.e. by folding the bag transversely along a line 22 adjacent mouth 21 to form a flap 23 which is sealed against sides 12, wire 17 being bent with flap 23 to'reinforce the flap in its sealed position.

' In use, bag 10 is opened by unsealing flap 23 and bending wire 17 upwardly away from sides 12. The presence of wire 17 may facilitate this unsealing operation. When the desired amount of the contents of bag 10 has been removed the bag is reclosed by repeatedly folding over the top portion of the bag to form multiple transverse folds parallel to line 22 as shown in FIG. 4'of the drawings. On each foldovcr ofthe top portion of bag 10 wire 17 is bent and holds that particular fold in place.

'Thus mouth 21 of the'bag is'effectively clamped shut and the bag is reduced in size tothe volume of the remaining contents. On removal of further contents, wire 17 is bent at a new fold whichis not weakened by previous bending. The remaining bends in wire 17 aid in clamping the folds in position even though such bends might be weakened by reuse. It will be noted that no matter how much the contents of bag 10 have been depleted and how many folds may be present the bag is still effectively closed by the clamping action ofwire '17.

The closure ofthe present inventionfacilitates manufacture of bags to which it is attached; Wire 17 may be sealed between strips 18 in a continuous process at the same time that resulting reinforcing bandl6 is fed into the production of a continuous tube formed by sheet 11. When reinforcing band 16 has been positionedand sealed between overlapping ends I3 of sheet 11 'the tube may be severed into individual lengths whereafter flap 20 is folded and sealed into position.

It will be appreciated that reinforcing band 16 may be formed ofany bendable inelastic materiaL'for instance a plu- "ralit'y ofindividual parallel wires ofsuitable gauge or a thin strip of metal. If desired, strips 18 may be eliminated where band [6 strip is interposed between overlapping sealed edge portions 13 of the bag material although it may be desired to identify the reinforcing band by using strips of a'color contrastingwith that of thebag-material. =Although theexample embodiment shows the bottom of bag 10 formed by a sealed foldover'flap 20, it may also be sealedby crimping and a foldovcr flap additionally employed if it is desired to make use of the reinforcing characteristics of band 16. In the method of continuous production crimping .would allow the bottom of each bag to be formed before severance of the tube into individual lengths.

forward ofthe filling material and the crimp is cut midway of its lateral length, the crimp on one side of the cut forming the top seal of its filled bag ahead while the crimp on the opposite sideof the out forms the bottom of the bag being filled.

The'closure of the present invention is equally applicable to seamless bags, for instance. plastic tubing which is continuou'sly extruded, reinforcing band 16 being continuously fed and sealed onto the outside of the tube wall. Also, more than one such reinforcing stripmay be attached to each bag and, of

.course,.the bag itself may be of any suitable shape. Any suitable type of flexible bag material may be used such as coated or uncoated cellulose material as described, plastic or paper.

Iclaim: l. A reclosable bag formed from a sheet of flexible material which is folded upon itself toprovide an open-ended tubular bag body with opposite side edge portions of the sheet being overlappedand secured together in a seam extending longitudinally of the bag'body, and an elongated striplike stiffening member embedded-insaid seam between the overlapped and ing member being folded transversely upon itself to close the bottom of the bag while the other end of the bag body serves as an open bag mouth whichis closable by transversely folding the mouth end portion of the bag body with the associated portion of the stiffening member upon itself so that the stiffening member retains the bag mouth closed. t

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US5056934 *18 Ene 199115 Oct 1991Del Puerto Marketing CompanyTwist and tuck freezer bag
US5176452 *6 Abr 19925 Ene 1993Ninth MoonSelf-closing bag
US5215797 *12 Nov 19911 Jun 1993Bedford Industries, Inc.Deadfold reclosure sticker
US5227210 *12 Nov 199113 Jul 1993Bedford Industries, Inc.Deadfold sticker systems
US5302222 *19 Feb 199312 Abr 1994Bedford Industries, Inc.Deadfold sticker method
US5328436 *4 Sep 199212 Jul 1994Bedford Industries, Inc.Deadfold reclosure sticker method
US5766399 *22 Dic 199516 Jun 1998Clark; DonaldClosable bag and method of making same
US686008428 Oct 20031 Mar 2005Frito-Lay North America, Inc.Vertical stand-up pouch with zipper seal quick change module
US688631313 Feb 20043 May 2005Frito-Lay North America, Inc.Method and apparatus for making flat bottom bags
US693508625 Nov 200330 Ago 2005Frito-Lay North America, Inc.Double-bag package and perforation knife
US703236230 Oct 200325 Abr 2006Frito-Lay North America, Inc.Vertical stand-up pouch with integrated reclose strip
US717831314 Ene 200520 Feb 2007Frito-Lay North America, Inc.Method for making a package having at least two items
US71978594 Ene 20053 Abr 2007Frito-Lay North American, Inc.Vertical stand-up pouch with zipper seal quick change module
US721338523 May 20068 May 2007Frito-Lay North America, Inc.Vertical stand-up pouch with zipper seal quick change module
US725493018 Nov 200514 Ago 2007Frito-Lay North America, Inc.Stationary tucker bar mechanism
US72996089 May 200527 Nov 2007Frito-Lay North America, Inc.Quick change module with adjustable former attachments
US730580522 Sep 200511 Dic 2007Frito-Lay North America, Inc.Method for making a flexible reclosable package
US750034019 Oct 200710 Mar 2009Frito-Lay North America, Inc.Quick change module with adjustable former attachments
US751659612 Abr 200514 Abr 2009Frito-Lay North America, Inc.Bandolier format packaging
US75210211 Dic 200421 Abr 2009Leica Biosvstems St. Louis LlcSystem for in situ processing of a tissue specimen
US75525749 May 200530 Jun 2009Frito-Lay North America, Inc.Variable tension gusseting system
US766589515 Abr 200423 Feb 2010Kao CorporationBag having a deformable member attached thereto
US778091917 Abr 200924 Ago 2010Leica Biosystems Richmond, Inc.Method for processing a tissue specimen in situ prior to histological examination
US78881321 May 200715 Feb 2011Leica Biosystems Richmond, Inc.Method for processing tissue samples in preparation for histological examination
US79932568 Ene 20109 Ago 2011Kao CorporationMethod of attaching deformable member to a bag
US808021917 Abr 200920 Dic 2011Leica Biosystems Richmond, Inc.Card member for receiving a tissue specimen to be processed for histological examination
US813239525 Jun 200913 Mar 2012Frito-Lay North America, Inc.Variable tension gusseting system
US8518348 *26 Nov 200327 Ago 2013Leica Biosystems Richmond, Inc.Histological specimen retaining device
US20030223653 *28 May 20024 Dic 2003Knoerzer Anthony RobertPackage with pocket and method for making the same
US20040013324 *22 Jul 200222 Ene 2004Charles CorryBag securement system
US20040091183 *30 Oct 200313 May 2004Dierl Martin BernhardVertical stand-up pouch with integrated reclose strip
US20040159081 *13 Feb 200419 Ago 2004Knoerzer Anthony RobertMethod and apparatus for making flat bottom bags
US20040161174 *13 Feb 200419 Ago 2004Bartel Lawrence JosephVertical stand-up pouch
US20040226849 *25 Nov 200318 Nov 2004Brenkus Frank MathewDouble-bag package and perforation knife
US20040234175 *15 Abr 200425 Nov 2004Kao CorporationBag
US20050112032 *26 Nov 200326 May 2005Mccormick James B.Histological specimen retaining device
US20050112034 *1 Dic 200426 May 2005Mccormick James B.Apparatus and method for in situ processing of a tissue specimen
US20050198929 *9 May 200515 Sep 2005Gehring Jay E.Variable tension gusseting system
US20050210840 *9 May 200529 Sep 2005Kohl Garrett WQuick change module with adjustable former attachments
US20050238262 *19 May 200427 Oct 2005Gordon JenkinsRecloseable bag and method of production
US20050238766 *12 Abr 200527 Oct 2005Henderson Eric TBandolier format packaging
US20060064947 *18 Nov 200530 Mar 2006Bartel Lawrence JStationary tucker bar mechanism
US20060140514 *21 Feb 200629 Jun 2006Dierl Martin BVertical stand-up pouch with integrated reclose strip
US20060156696 *14 Ene 200520 Jul 2006Bezek Edward AMethod and apparatus for making a vertical stand up package having one or more compartments
US20060196151 *23 May 20067 Sep 2006Knoerzer Anthony RVertical Stand-Up Pouch With Zipper Seal Quick Change Module
US20060285779 *15 Jun 200521 Dic 2006Golas Adam ARe-sealable bag
US20070062161 *22 Sep 200522 Mar 2007Dierl Martin BFlexible package with inside reclose strip
US20070068965 *26 Sep 200529 Mar 2007Von Flotow Andreas HRe-closable flexible dispensing package providing a seal
US20070196891 *1 May 200723 Ago 2007Mccormick Scientific, L.L.C.Method for processing tissue samples in preparation for histological examination
US20080000200 *18 Sep 20073 Ene 2008Dierl Martin MFlexible Package with Inside Reclose Strip
US20080034713 *19 Oct 200714 Feb 2008Frito-Lay North America, Inc.Quick change module with adjustable former attachments
US20090162496 *27 Feb 200925 Jun 2009Frito-Lay North America, Inc.Bandolier Format Packaging
US20090246825 *17 Abr 20091 Oct 2009Leica Biosystems St. Louis LlcMethod for Processing a Tissue Specimen In Situ Prior to Histological Examination
US20090253199 *17 Abr 20098 Oct 2009Leica Biosystems St. Louis LlcCard Member for Receiving a Tissue Specimen to be Processed for Histological Examination
US20100011711 *25 Jun 200921 Ene 2010Frito-Lay North America, Inc.Variable Tension Gusseting System
US20100113240 *8 Ene 20106 May 2010Kao CorporationBag having a deformable member attached thereto
US20160059995 *27 Ago 20153 Mar 2016Nestec S.A.Flexible pouch with memory support strips and methods of producing and using same
DE3440100A1 *2 Nov 198422 May 1986Welp Entwicklungs KommanditgesPackaging and method of packaging a pile of film cards and insertion thereof in a film-card cartridge of a film-card camera
DE102013100131A1 *8 Ene 201310 Jul 2014Windmöller & Hölscher KgVerfahren zum Herstellen von Säcken
EP1616806A1 *15 Abr 200418 Ene 2006Kao CorporationBag
EP1616806A4 *15 Abr 200414 Jun 2006Kao CorpBag
WO2016026998A1 *19 Ago 201525 Feb 2016O & C Innovacion Y Desarrollo S.L.Foldable and rollable seal fastener
WO2016148953A1 *7 Mar 201622 Sep 2016Kellogg CompanyReclosable bag
Clasificación de EE.UU.383/89, 383/905
Clasificación internacionalB65D33/30, B65D33/02
Clasificación cooperativaB65D33/30, Y10S383/905, B65D33/02
Clasificación europeaB65D33/30, B65D33/02