All-metal lift valve for high-vacuum applications

Details All-metal lift valve for high-vacuum applications All-metal lift valve for high-vacuum applications

1976-06-22

1979-01-30

Rosenthal, Arnold

Valves and valve actuation

Reciprocating valve

Particular head and seat cooperation

251361, 251368, F16K 138, F16K 142, F16K 5102

Patent

active

041368541

ABSTRACT:
A metallic valve member having an annular, tapering sealing face makes practically line contact along a circle with a valve seat whose frustoconical inner portion is a sheet metal element having a rounded edge directed substantially at right angles toward the sealing face. An axial closing force applied to the valve member produces a much higher sealing force holding the edge of the seat engaged with the sealing face of the valve member.

REFERENCES:
patent: 193087 (1877-07-01), Holly
patent: 877865 (1908-01-01), Ricksecker, Jr.
patent: 1589241 (1926-06-01), Scott
patent: 2192339 (1940-03-01), Wilson
patent: 2330881 (1943-10-01), Gora
patent: 2645449 (1953-07-01), Gulick
patent: 3043323 (1962-07-01), Market et al.
patent: 3550903 (1970-12-01), Hauser
patent: 3620251 (1971-11-01), Bowen

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