Bottle cap

Details Bottle cap Bottle cap

1979-12-04

1981-07-28

Norton, Donald F.

Bottles and jars

Closures

Cap type

215334, 215342, B65D 4104

Patent

active

042806321

ABSTRACT:
A cap for closing a bottle shaped container. The cap has an inner lid formed with a ring groove that receives a lateral rib protruding inwardly from an outer lid that encompasses the inner lid. The inner lid has a sealing plate forming the top thereof that has a central portion connected to a side peripheral portion by a flexible hinged structure so that the central portion is movable with respect to the peripheral portion. Cushion material is formed integrally with or attached to the central portion of the inner lid and is contacted by the outer lid to urge the central portion into contact with the container thereby providing an air-tight seal.

REFERENCES:
patent: 2689665 (1954-09-01), Martin
patent: 3219222 (1965-11-01), Davidson
patent: 3315830 (1967-04-01), Flynn
patent: 4093096 (1978-06-01), Augros

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