Expanded plastic bottle stopper

Details Expanded plastic bottle stopper Expanded plastic bottle stopper

1981-10-26

1983-11-08

Norton, Donald F.

Bottles and jars

Closures

Stopper type

B65D 3900

Patent

active

044137443

ABSTRACT:
A bottle stopper made of expanded plastic material and having a cylindrical side wall and transverse end walls, the end walls having a bead portion comprising a rounded peripheral edge curving smoothly into the side wall, and the end walls having concave central depressed portions which expand as the stopper is radially compressed by insertion into a bottle.

REFERENCES:
patent: 2647283 (1953-08-01), Queor et al.
patent: 2774104 (1956-12-01), Miller
patent: 2925187 (1960-02-01), Bramming
patent: 4188457 (1980-02-01), Throp

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