Valve body

Details Valve body Valve body

1987-11-03

1989-03-28

Chambers, A. Michael

Valves and valve actuation

Valve

137854, 220203, B65D 5116

Patent

active

048157058

ABSTRACT:
A valve body made of a rubbery elastic material comprising a securing portion which is held by a securing member, and a lip portion which extends from the securing portion and which abuts against a portion to be sealed, which portion to be sealed opposes the securing member.
The valve body has an annular recess formed in the base of the lip portion on the side which faces the securing portion or on the side which is opposite to a tip portion thereof. The valve body is so constituted that the gap which starts from the securing portion to the edge of the lip portion is formed on the reverse side of the lip portion when the annular recess is disposed around the lip portion on the side facing the securing portion.

REFERENCES:
patent: 2542254 (1951-02-01), Lamb
patent: 3085591 (1963-04-01), Schneider
patent: 3331390 (1967-07-01), Hoffman
patent: 4540103 (1985-09-01), Kasugai et al.
patent: 4572396 (1986-02-01), Kasugai et al.
patent: 4588102 (1986-05-01), Kasugai
patent: 4666056 (1987-05-01), Kasugai et al.
patent: 4724868 (1988-02-01), Kasugai et al.
patent: 4726488 (1988-02-01), Kasugai

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