Breather cap

Details Breather cap Breather cap

1979-12-26

1981-05-19

Hall, George T.

Receptacles

Container attachment or adjunct

Pressure relief means

220293, 220367, 220295, 222569, B65D 612, B65D 640, B65D 2500, B65D 9012

Patent

active

042679419

ABSTRACT:
A unitary plastic cap having an inner and outer sealing flange surrounding means for compressively engaging the cap with an apertured member. Upon compression, the inner and outer flanges of the cap cooperate with a raised annular ridge disposed radially outward of the aperture on the member to provide a double sealing engagement of the cap with the member.

REFERENCES:
patent: 3263876 (1966-08-01), Perfetto
patent: 3672547 (1972-06-01), Kozlowski
patent: 3951318 (1976-04-01), Costa
patent: 4020970 (1977-05-01), Koscik et al.

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