Bottle stopper

Details Bottle stopper Bottle stopper

1975-09-05

1976-10-05

Norton, Donald F.

Bottles and jars

Closures

Stopper type

B65D 3900

Patent

active

039840220

ABSTRACT:
A bottle stopper of generally biconical configuration consisting of two truncated conical sections abutting on their bases. The stopper is formed from foamed plastic with a dense outer layer enclosing a closed cellular or honeycomb structure around the center. The height of each truncated conical section is greater than the distance between the neck opening and zone of minimum diameter in conventional bottles and the diameter of the ends of the stopper is less than the diameter of neck opening. The stopper may also be formed with a generally barrel shaped configuration.

REFERENCES:
patent: 2931230 (1960-04-01), Lowery
patent: 3006494 (1961-10-01), Reibeling
patent: 3119541 (1964-01-01), Lynn
patent: 3900122 (1975-08-01), Dichter

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