Vacuum valve

Details Vacuum valve Vacuum valve

1991-09-11

1992-10-06

Rosenthal, Arnold

Valves and valve actuation

Reciprocating valve

Diverse material seal at valve interface

251334, 251357, 251900, F16K 148, F16K 102

Patent

active

051525046

ABSTRACT:
A vacuum valve that forms a tight vacuum seal is disclosed. The valve incorporates a hollow, malleable, metallic O-ring that deforms and conforms readily under pressure to seal the space between a movable valve member and a valve seat. When the valve is closed, the O-ring is compressed between opposed machined surfaces of the valve member and the valve seat, readily deforming and conforming to those surfaces, thus creating a vacuum-tight seal thereat.

REFERENCES:
patent: Re7048 (1876-04-01), Frink
patent: 75670 (1868-03-01), Douglas
patent: 82844 (1868-10-01), Jenkins
patent: 1800127 (1931-04-01), Wilson
patent: 2457492 (1948-12-01), Raybould
patent: 4190073 (1980-02-01), Claycomb
patent: 4249717 (1981-02-01), Thompson
patent: 4474358 (1984-10-01), Bennett
patent: 4477053 (1984-10-01), Jandrasi
patent: 4688757 (1987-08-01), Cook et al.
patent: 4848729 (1989-07-01), Danzy

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