Closure with multiple axis bistable hinge structure

Details Closure with multiple axis bistable hinge structure Closure with multiple axis bistable hinge structure

1995-12-07

1997-07-01

Cronin, Stephen K.

Bottles and jars

Closures

Closure pivoted about receptacle opening

215237, 220335, 220339, B65D 4708

Patent

active

056428243

ABSTRACT:
A closure is provided for a container opening. The closure includes a base for mounting to the container and a lid movable between a closed position and an open position. The lid and base are connected by a bistable, snap-action hinge structure of the type that includes a web having a central portion between two wider ends wherein an arcuate film hinge connects the base to the web along one side of the web between the ends and wherein an arcuate film hinge connects the lid to the web along another side of the web between the ends. The hinge structure includes an abutment surface located so that when the lid is in a closed position, the abutment surface extends adjacent the web's central portion from an elevation adjacent one of the film hinges to an elevation that is preferably adjacent or higher than the other film hinge. The abutment surface is contacted by the web's central portion as the lid is closed or opened whereby the position of the web is controlled.

REFERENCES:
patent: 1928445 (1933-09-01), Boyd
patent: 3135456 (1964-06-01), Palazzolo
patent: 4403712 (1983-09-01), Wiesinger
patent: 4726091 (1988-02-01), Joyce
patent: 5067624 (1991-11-01), Thanisch
patent: 5115931 (1992-05-01), Dubach
patent: 5143234 (1992-09-01), Lohrman et al.
patent: 5356017 (1994-10-01), Rohr et al.
patent: 5489035 (1996-02-01), Fuchs
patent: 5531349 (1996-07-01), Wojcik et al.
patent: 5558239 (1996-09-01), Dubach

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