Vaneless rotary airlock valve

Details Vaneless rotary airlock valve Vaneless rotary airlock valve

1991-01-14

1992-11-17

Fox, John C.

Valves and valve actuation

Rotary valves

Seat or interface seal

251144, 222452, F16K 500

Patent

active

051636565

ABSTRACT:
A vaneless air lock valve including a housing, a hollow rotor having an opening in its cylindrical outer surface, and first and second opposed valve seats each including spherical inner and outer surfaces. A sealing surface extends between the inner and the outer surface. The rotor is supported in the housing to rotate about its major axis, with the valve seats supported by the housing such that the sealing surfaces of the valve seats engage said rotor. In first and second rotary positions the opening is symmetrically positioned with respect to the sealing surfaces of the first and second seats with the inner perimeter of the valve seats substantially coinciding with the opening in the rotor.

REFERENCES:
patent: 2628809 (1953-02-01), Mikeska
patent: 4137935 (1979-02-01), Snowdon
patent: 4782741 (1988-11-01), Sigmon

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