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| Number | Title | Issue Date |
| 7993256 | Method of attaching deformable member to a bag A bag formed of a sheet material adapted to be filled with contents and opened at the top for taking out the contents. The bag has fused joints along the lateral edges thereof. A plastically deformable wire-like member is attached inside the fused joints over a leng... | 08/09/2011 |
| 7695419 | Method and device for manufacturing bag with clamping device A tape with a zipper member and a bag film are continuously moved by rotation of a rotary drum while being overlaid with each other such that the tape travels in a tape introducing groove for a tape with a zipper member, the groove formed along a circumferential dir... | 04/13/2010 |
| 7674220 | Method and apparatus for applying hot-melt adhesive to zipper flanges and applying zipper to packages The disclosure relates to a method and apparatus for the attachment of a zipper to a reclosable package or bag, particular packages or bags of relatively larger sizes. Pinch rollers separate the flanges of the zipper so that the interior walls of the flanges are poi... | 03/09/2010 |
| 7549954 | Slider for reclosable fastener A foldable plastic slider for straddling relation with a plastic fastener includes first and second profiles. The straddling slider is adapted to close or open the fastener by movement therealong. The slider comprises a transverse support member, first and second le... | 06/23/2009 |
| 7410453 | Method of sealing a zipper with concave bridges or bases using convex sealing bars The present invention includes a method and apparatus wherein webless zipper is provided with concave seal bridges. These concave seal bridges are complementary in shape to convex sealing bars. This captures or positions the seal bridges of the zipper profiles resul... | 08/12/2008 |
| 7340807 | Pouch and resealable closure mechanism therefor including a plurality of interlocking closure elements A resealable closure mechanism includes first and second closure strips. The first closure strip includes a plurality of discontinuous closure elements and the second closure strip includes a plurality of discontinuous closure elements. One or more of the discontinu... | 03/11/2008 |
| 7329217 | Application of zippers to film material The apparatus applies a transverse zipper strip to a film (10) moving continuously in a direction (12). A continuous belt (18) is driven by sprocket wheels (16a, 16b) and carries upper seal bars (22a,... | 02/12/2008 |
| 7316052 | Closure profile and die plate for extruding same A reclosable pouch includes interlocking male and female closure elements having elongate hollow closure profiles. The male closure profile has a hollow shaft section, and the female closure profile has a channel with at least one hollow side. A set of pleated grip ... | 01/08/2008 |
| 7300395 | Method for manufacturing a bag A retaining element for use with elastic sheet material is disclosed. In one form, the sheet material can be provided as a bag (100) having first and second side walls (102, 104). The retaining element can be in the form of an elastic strip attached to... | 11/27/2007 |
| 7178309 | Machine for processing web of material The present invention relates to a process used for packaging a product in a web of material that has a zipper attached thereto. The process includes providing a web of material having first and second edges and a zipper including first and second interlocking membe... | 02/20/2007 |
| 7137942 | Apparatus and process for assembling a slider The closure device (121) includes interlocking fastening strips (130, 131) and a slider (132) slidably disposed on the fastening strips for facilitating the occlusion and deocclusion of the fastening strips (130, 131) when moved towards f... | 11/21/2006 |
| 7121064 | Method for dual manufacture of reclosable bags of HFVF machine A method for dual manufacture of reclosable packages on a horizontal-form, vertical fill machine. The method comprising the following steps: extending a web of bag making film under tension in a machine direction; joining one zipper tape to the web along a first zon... | 10/17/2006 |
| 7114310 | Process for attaching slider operated closure on form-fill-seal packaging machinery The present invention relates to a process used for packaging a product in a web of material that has a zipper attached thereto. The process includes providing a web of material having first and second edges and a zipper including first and second interlocking membe... | 10/03/2006 |
| 7082737 | Form-fill-seal machine Form-fill-seal machine includes parts for moving a web of packaging material through the machine according to a process path and parts for transforming the web into filled bags, as well as a zipper strip applicator device for supplying a zipper strip for each bag tr... | 08/01/2006 |
| 7077796 | Bag with elastic strip and method of making the same Provided is a plastic bag including a live elastic strip that, in the elastic strip's normal condition, contracts thereby constricting an opening of the bag to assist in retaining the bag to an object. The elastic strip includes a first region that is continuously a... | 07/18/2006 |
| 6929594 | Belt drive assembly for feeding zipper tape A method and an apparatus for automatically feeding zipper assemblies (with or without sliders) to a station, for example, a station where the zipper assemblies are sealed to thermoplastic bag making film. The zipper tape feeding apparatus comprises a pair of endles... | 08/16/2005 |
| 6918234 | Process for attaching slider-operated closure on form-fill-seal packaging machinery The present invention relates to a process used for packaging a product in a web of material that has a zipper attached thereto. The process includes providing a web of material having first and second edges and a zipper including first and second interlocking membe... | 07/19/2005 |
| 6669615 | Plastic film hinging and pre-creasing process A hinge is disclosed for a plastic film. This film has a predetermined thickness sufficient for the plastic film to remain planar in an absence of a first bending moment applied across the plastic film. The hinge includes at least one linear groove config... | 12/30/2003 |
| 6568150 | Apparatus for making reinforced reclosable package seals Apparatus for making packages having interlocking closures from a web of film, the closure having male and female portions and being formed in line with or transversely to the direction of film flow. A converter fanfolds the film into spaced apart stacks ... | 05/27/2003 |
| 6519917 | Method and apparatus for making gussetted package Methods and apparatus for making gusseted packages having openable and reclosable interlocking seals, the seals having male and female portions, snap detents, and formed transversely to the direction of film flow. The packaging film is provided at package... | 02/18/2003 |
| 6517660 | Method of forming gusseted reclosable bags A method of forming a reclosable gusseted bag is disclosed wherein a carrier tape webs having discrete sections of mating profile separated by profile free sections is introduced between two bag walls and sealed to the bag wall tops or adjacent thereto. T... | 02/11/2003 |
| 6516850 | Apparatus for applying reclosable fasteners to a web of film An apparatus for applying strip fastener elements or zippers to web material includes an unwind stand holding a roll of film material, an infeed dancer arrangement of rollers, a zipper apparatus which conditions zipper material, cuts zippers and delivers ... | 02/11/2003 |
| 6510673 | Method and apparatus for manufacturing tube-shaped packages made of flexible material A method for manufacturing tube-shaped packages made of flexible material, characterized in that an annular portion is pushed inward in a U-shaped arrangement at at least one closed end of a tube-shaped package, said annular portion being at least partial... | 01/28/2003 |
| 6350340 | Fastener tape material, bag utilizing fastener tape material, and method of manufacture thereof Methods, an apparatus and a system in which reclosable bags and components thereof are formed are disclosed. The reclosable bags are made from base web material that has transversely applied fastener tape segments thereon. The web material is used in a ve... | 02/26/2002 |
| 6251209 | Fastener tape material bag utilizing fastener tape material, and method of manufacturing thereof Methods, an apparatus and a system in which reclosable bags and components thereof are formed are disclosed. The reclosable bags 2001 are made from base web material that has transversely applied fastener tape segments thereon. The web material is used in... | 06/26/2001 |
| 6095960 | Method and device for manufacturing bags from tubular paper sections of a single layer or multiple layers When manufacturing bags from tubular paper sections of a single layer or multiple layers, at least one end of each flat, tubular section is expanded into a bottom square. Lateral flaps formed in this way are folded such that they overlap and partially cov... | 08/01/2000 |
| 5989172 | Method and device for manufacturing bags from tubular paper sections of a single layer or multiple layers When manufacturing bags from tubular paper sections of a single layer or multiple layers, at least one end of each flat, tubular section is expanded into a bottom square. Lateral flaps formed in this way are folded such that they overlap and partially cov... | 11/23/1999 |
| 5968310 | Closable bag and method apparatus for making same A method and apparatus for making continuous rolls of a thin laminate composite that is ideally suited for the large scale production of reclosable bags which can be used for sealably packaging a wide variety of articles, including food products. The bags... | 10/19/1999 |
| 5783012 | Adhesive closure having enhanced burst strength for flexible bag A resealable flexible thermoplastic bag including a front wall and a back wall, said walls being joined along the major portions of their opposite longitudinal edges and bottom; an open mouth adjacent to the top edge of said bag; a closure near the open m... | 07/21/1998 |
| 5776045 | Machine for attaching a reclosable fastener to a flexible material A machine for attaching a reclosable fastener to a web of flexible material primarily intended for use with a host packaging machine to form a reclosable container. The fastener attaching machine includes a motor that indexes the flexible material along a... | 07/07/1998 |
| 5776044 | Closable bag and method of making same A method of making continuous rolls of a thin laminate composite that is ideally suited for the large scale production of reclosable bags which can be used for sealably packaging a wide variety of articles, including food products. The bags of the inventi... | 07/07/1998 |
| 5769772 | Packages made with both high-frequency/radio-frequency seals and conventional heat/pressure seals using combinations of polar and non-polar polymers A package having multiple seals in close proximity is set forth. At least one of the seals is accomplished through the use of a polar polymer that bonds to an opposing panel in the package when exposed to an alternative electromagnetic field. The strength... | 06/23/1998 |
| 5573614 | Method for stabilizing a plastic zipper during attachment to a film A method for stabilizing and aligning interlocked male and female profiles of a plastic zipper strip during attachment of the strip to a polymeric film requires the use of profiles having stabilizers, perhaps taking the form of wedges. The stabilizers, di... | 11/12/1996 |
| 5558613 | Method for reducing the variance in the forces needed to open reclosable plastic bags from within and from without A method for substantially reducing the variance in results obtained in pull tests on reclosable plastic bags, wherein the forces needed to open the bags from within and from without are measured and compared, by controlling the attachment point of the ba... | 09/24/1996 |
| 5529659 | Machine and associated apparatus for attaching zippers to plastic bags The two separable elements of a conventional plastic zipper are advanced through a zipper guide slot from the inlet to the outlet end of a machine, simultaneously with two sections of a plastic film or web, one section of which overlies one of the zipper ... | 06/25/1996 |
| 5405478 | Tubular plastic end stops bonded to plastic zipper Plastic-film zipper bags having tubular plastic end stops bonded to the plastic zipper to seal the ends of the zipper and to provide stops to retain a slider on the zipper are disclosed. Also disclosed is a method of installing the tubular plastic end sto... | 04/11/1995 |
| 5322579 | Method of forming side seams for zippered bags or packages A method for manufacturing reclosable plastic bags or packages, wherein sections of zipper profiles are pre-softened at intervals equal in length to the width of the bags or packages to be manufactured. The pre-softening enables the zipper profiles to be ... | 06/21/1994 |
| 5188580 | Plastic film bag manufacturing apparatus and associated methods, and plastic film bags produced thereby An in-line machine for attaching elongated, flexible closure tie elements to the individual bag portions of a laterally folded plastic film web being continuously discharged from a bag forming station, and being forcibly captured by a winder mechanism, en... | 02/23/1993 |
| 5186705 | Method and apparatus for forming clasp envelopes An approved method and apparatus for forming clasp envelopes. The apertures extending through the top and bottom panels of the envelope body and the clasp receiving aperture extending through the top flap are formed after the envelope has been completely ... | 02/16/1993 |
| 5155967 | Automated bag manufacturing and packaging system An apparatus for the continuous packaging of flexible bags is adapted for use with a continuous bag manufacturing machine. Separate bags are received on a conveyor which conveys the bags to a stacking station at the end of the conveyor. At the stacking st... | 10/20/1992 |
