Bottles and jars – Closures – Frangible member or portion
Patent
1997-11-24
1999-11-16
Cronin, Stephen K.
Bottles and jars
Closures
Frangible member or portion
215253, 215258, 215345, 215350, B65D 4134, B65D 5304
Patent
active
059841249
ABSTRACT:
A pilfer-proof cap made of synthetic resins capable of preventing at least a rotation of a packing together with a cap in a simple construction when said cap is removed and holding a sealed-up tightness of a container until a bridge is broken is provided.
A cap, in which a top wall and a skirt depending from said top wall are comprised and a threaded portion of the cap screwed in a threaded portion of the container is provided, a plurality of bridges, a packing provided so as to seal up tightly a mouth portion of container during the time when said cap is closed, a packing guide, a circular inner sealing member tightly insertable into an inner surface of said mouth portion of container provided in said packing and an air reservoir formed in an upper surface of the packing are comprised.
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patent: 2681742 (1954-06-01), Miller
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patent: 4997097 (1991-03-01), Krautkramer
patent: 5421470 (1995-06-01), Dudzik
patent: 5579936 (1996-12-01), Costa et al.
Cronin Stephen K.
Eloshway Niki M.
Yamamura Glass Co. Ltd.
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