Valves and valve actuation – Rotary valves – Butterfly
Patent
1989-08-10
1990-07-31
Fox, John C.
Valves and valve actuation
Rotary valves
Butterfly
251174, 251314, F16K 122
Patent
active
049444891
ABSTRACT:
A rotary valve assembly having a housing, a valve member and a seal assembly. The seal assembly has at least one seal subassembly with two resilient sealing elements, each having a substantially linear section and a curved section formed integrally with the linear section. The linear and curved sections of the two sealing elements are disposed adjacent each other. The two resilient sealing elements may have different resiliency characteristics.
REFERENCES:
patent: 3025035 (1962-03-01), Swain
patent: 3260502 (1966-07-01), Plumer
patent: 3442488 (1969-05-01), Adams
patent: 3532321 (1970-10-01), Bowman
patent: 3612483 (1971-10-01), Pool
patent: 3620242 (1971-11-01), Pease
patent: 3749115 (1973-07-01), Raftis
patent: 3905577 (1975-09-01), Karpenko
patent: 4003394 (1977-01-01), Adams
patent: 4114856 (1978-09-01), MacAfee
patent: 4231546 (1980-11-01), Eggleston
patent: 4241895 (1980-12-01), Sternenberg
patent: 4271858 (1981-06-01), Snape et al.
patent: 4281817 (1981-08-01), Adams
patent: 4303249 (1981-12-01), Illy
patent: 4491298 (1985-01-01), Beauchamp et al.
patent: 4527773 (1985-07-01), Muller et al.
patent: 4770393 (1988-09-01), Hubertson
patent: 4796857 (1989-01-01), Hayes
Adams Horst H.
Bruggestrath Bernd
Kappe Rudolf A.
Fox John C.
Gebruder Adams Armaturen U. Apparate GmbH & Co., K.G.
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