High vacuum valve having a metal-to-metal sealing joint

Details High vacuum valve having a metal-to-metal sealing joint High vacuum valve having a metal-to-metal sealing joint

1980-01-28

1982-03-09

Rosenthal, Arnold

Valves and valve actuation

Reciprocating valve

Particular head and seat cooperation

251333, F16K 134

Patent

active

043185320

ABSTRACT:
In metal-to-metal sealed high vacuum valves, a parallel motion of the sealing faces relative to each other is to be prevented, to avoid damaging of the faces during their mutual contact. This is obtained by means of a cup spring type shutoff member having a sealing face on its periphery, cooperating with the inner edge of a second conically shaped annular spring element as the opposite sealing face. The flexural stiffnesses and lever arm lengths in the radial direction of the two spring elements are to be approximately equal to each other. To ensure that the spring elements can perform their motion only in the direction of normals to the sealing faces, a guide cone having an engaging portion is advantageously provided.

REFERENCES:
patent: 1800127 (1931-04-01), Wilson
patent: 1847385 (1932-03-01), Dengler
patent: 2765983 (1956-10-01), Mayo
patent: 3185438 (1965-05-01), Smirra
patent: 3430613 (1969-03-01), Barnes
patent: 3817450 (1974-06-01), Mischke
patent: 4136854 (1979-01-01), Ehmig et al.

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