Synthetic resin container closure

Details Synthetic resin container closure Synthetic resin container closure

2006-03-21

2006-03-21

Hylton, Robin A. (Department: 3727)

Bottles and jars

Closures

Cap type

C215S252000, C215S341000, C215SDIG005

Reexamination Certificate

active

07014055

ABSTRACT:
A container closure formed from a synthetic resin as a single unit has a circular top panel wall and a cylindrical skirt wall extending downwardly from the peripheral edge of the top panel wall. An outer cylindrical sealing protrusion, an inner cylindrical sealing protrusion, and annular sealing ridge, all having a predetermined shape and a predetermined size, are formed on the inner surface of the top panel wall. In one embodiment, the thickness of the center portion of the top panel wall is reduced to a predetermined range and a plurality of ribs having a predetermined thickness are formed on the inner surface of the center portion of the top panel wall.

REFERENCES:
patent: 3463340 (1969-08-01), Lindstrom
patent: 4489845 (1984-12-01), Aichinger et al.
patent: 4560077 (1985-12-01), Dutt
patent: 4566603 (1986-01-01), Moore
patent: 5297688 (1994-03-01), Beck et al.
patent: 5307945 (1994-05-01), Hidding et al.
patent: 5871111 (1999-02-01), Pfefferkorn et al.
patent: 6003701 (1999-12-01), Hidding et al.
patent: 6021912 (2000-02-01), Hertrampf
patent: 6260722 (2001-07-01), Ekkert
patent: 6325226 (2001-12-01), Krautkramer
patent: 6338414 (2002-01-01), Schellenbach
patent: 10-35699 (1998-02-01), None

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