Double hinge zipper construction

Details Double hinge zipper construction Double hinge zipper construction

1988-11-30

1989-11-07

Marcus, Stephen

Flexible bags

With closure

Rib and groove

24587, 24576, B65D 3316

Patent

active

048787639

ABSTRACT:
An improved reclosable bag structure formed out of a plastic film or laminations thereof with front and back wall panels attached along their bottom and along their side edges and having fastener strips along the inner surfaces of the panels at the bag top with the strips secured thereto and one strip having a web element which is secured at its lower edge below the center line of the first strip and the other strip having a web element which is secured to the top of the strip with said web elements bonded along their faces to the inner surfaces of the panels at the top of the bag so that forces against the bag walls cause the strips to tilt and resist separation with said forces being applied in a shear mode rather than a peel mode.

REFERENCES:
patent: 2978769 (1961-04-01), Harrah
patent: 3347298 (1967-10-01), Ausnit et al.
patent: 3991801 (1976-11-01), Ausnit
patent: 4268938 (1981-05-01), Walchli
patent: 4682366 (1987-07-01), Ausnit et al.
patent: 4817188 (1989-03-01), Van Erden

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