Valves and valve actuation – Fluid actuated or retarded – Flexible wall expansible chamber reciprocating valve actuator
Patent
1977-06-08
1982-12-14
Chambers, A. Michael
Valves and valve actuation
Fluid actuated or retarded
Flexible wall expansible chamber reciprocating valve actuator
251 615, 251214, 277125, F16K 31165
Patent
active
043634630
ABSTRACT:
An assembly of a seal unit and a plunger-like member movable relative to the seal unit, the seal unit comprising a washer-like resilient seal member having an opening therethrough and press-fittingly receiving the plunger therethrough in such a manner that an inner peripheral portion of the washer-like seal member is turned into substantially parallel sealing and wiping engagement with the plunger while being substantially transverse to the remainder of washer-like seal member.
REFERENCES:
patent: 1717114 (1929-06-01), McNulty
patent: 3282594 (1966-11-01), Wheeler
patent: 3455564 (1969-07-01), Dega
patent: 3516679 (1970-06-01), Schmitt
patent: 3698726 (1972-10-01), Schettler
patent: 3762384 (1973-10-01), Day et al.
patent: 3837687 (1974-09-01), Leonard
patent: 3973782 (1976-08-01), Evans
Chambers A. Michael
Robertshaw Controls Company
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