Container closure, and method for producing same

Details Container closure, and method for producing same Container closure, and method for producing same

1989-12-18

1992-06-30

Marcus, Stephen

Receptacles

Closures

With closure opening arrangements for means

220306, 220359, B65D 1734

Patent

active

051255286

ABSTRACT:
Closures for containers, such as cans and the like, wherein the closure is comprised of an end panel and a frame member which, preferrably, are attached together during an insert-injection molding operation used for forming the frame member. Depending upon the respective materials, the attachment therebetween may comprise heat-bonding or adhesives, and the like. The various end panels have a displaceable panel portion for providing an opening in the closure to provide access to the product(s) within the container. The various panel portions are defined by weakening lines, perforations or cut lines in the end panel and molded runners for "repairing" and/or sealing weakened or lanced portions of the end panels. The molded runners provide beam strength for protecting against excessive bulging during autoclave or other sterilization processes and against buckling during vacuum processing.

REFERENCES:
patent: 3437227 (1969-04-01), Peyser
patent: 4141462 (1979-02-01), Rucci
patent: 4155481 (1979-05-01), Takahashi et al.
patent: 4190174 (1980-02-01), Haimowitz
patent: 4211336 (1980-07-01), Helms
patent: 4309952 (1982-01-01), Takahashi et al.
patent: 4441624 (1984-04-01), Sokolowski
patent: 4741450 (1988-05-01), Braude
patent: 4949865 (1990-08-01), Turner

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