Michael J McMahon, Paul P Spanier: Reclosable bag material, method and apparatus. Minigrip, Hill Van Santen Steadman & Simpson, March 20, 1990: US04909017 (176 worldwide citation)

A new method of making a form fill bag having a reclosable fastener thereon and a mechanism therefor wherein a continuous length of film is advanced and joined first and second fastener profile strips are laid laterally onto the film of a length substantially equal to one-half of the film width, the ...

Gerald H Scheibner: Reclosable container. Union Carbide Corporation, Real J Grandmaison, John C Lefever, December 14, 1982: US04363345 (127 worldwide citation)

A reclosable container features ridges near the opening of the container to provide improved gripping of the container by the user during the opening and loading of the container.

Steven Ausnit: Thin wall reclosable bag material and method of making same. Minigrip, Hill Van Santen Steadman & Simpson, July 22, 1986: US04601694 (114 worldwide citation)

Material for bags with flexible sidewalls having reclosable separable plastic profile bag mouth closures comprising flexible sheet material providing the bag body and sidewalls. The bag mouth closures comprise strips having separably interlockable complementary resilient plastic profiles and lateral ...

James W Yeager: Zippered film and bag. David L Ray, October 31, 1995: US05461845 (112 worldwide citation)

A reclosable bag and plastic film and method for making the bag. The bag has a reclosable fastener connected to a single wall of the bag, and the film has a reclosable fastener connected to one side thereof which does not require attachment to any other portion of the film when making a bag. The fas ...

Zdenek Machacek, Lawrence Share: Reclosable zipper with tamper evident feature. Minigrip, Kane Dalsimer Sullivan Kurucz Levy Eisele and Richard, July 25, 1995: US05435864 (93 worldwide citation)

A plastic bag having a reclosable plastic zipper is provided with a tamper-evident, non-reclosable peel seal formed by coextruding an adhesive onto a side strip adjacent to the interlocking zipper. The coextrusion causes the adhesive to preferentially adhere to the side strip when the peel seal is b ...

Fox J Herrington: Plastic bags with releasable closure which resists opening from inside. Mobil Oil Corporation, Alexander J McKillop, Michael G Gilman, Charles J Speciale, December 24, 1985: US04561109 (92 worldwide citation)

A flexible bag has a releasable closure with a fin extending away from one of the mating pluralities of hook-like protrusions. The fin is joined to the base of the hook-like protrusions to apply disengaging force for opening the closure from the outside of the bag. The closure resists opening force ...

Paul A Tilman: Profiled plastics bag closure strip and adhesive bonding method. Minigrip, Hill Van Santen Steadman Chiara & Simpson, October 19, 1982: US04354541 (86 worldwide citation)

A closure strip (1) which incorporates a profiled closure element for use in resealable or reclosable bags is provided with a channel (4) in its surface which contacts a bag forming substrate material (6) for receiving adhesive (5). The presence of the channel ensures that a suitable thickness of ad ...

Timothy J May: Closure arrangement having a peelable seal. Reynolds Consumer Products, Alan T McDonald, February 6, 1996: US05489252 (82 worldwide citation)

In one embodiment, a closure arrangement for a polymeric bag having a pair of opposing films comprises a wide base strip, a pair of narrow heat-resistant strips composed of heat-resistant material, and a T-shaped peelable strip composed of peelable material. The base strip has opposing inner and out ...

Ewald A Kamp: Closure fastening device. Union Carbide Corporation, David Fink, July 15, 1980: US04212337 (82 worldwide citation)

A closure fastening device comprises a first channel element including hook portions facing away from each other and a second channel element including hook portions facing towards each other, whereby the channel elements interlock by pressing the first channel element into the second channel elemen ...

Schuster Samuel J: Double wall package for storing items in bacteria-free condition. September 25, 1973: US3761013 (82 worldwide citation)

A package is disclosed comprising a double wall, plastic bag having an access opening covered by a readily removable closure membrane bonded to the bag by heat seals adjacent the access opening. Both the bag and the membrane are essentially completely impermeable to bacteria, but the membrane is hig ...