Fluid controller

Details Fluid controller Fluid controller

1998-08-31

1999-06-22

Lee, Kevin

Valves and valve actuation

Fluid actuated or retarded

Piston type expansible chamber reciprocating valve actuator

251337, F16K 31122

Patent

active

059135042

ABSTRACT:
A ring divided in two is fitted around a valve stem at a portion thereof projecting upward beyond a piston, with a C-ring fitted around the divided ring. The divided ring has an annular projection formed on its inner periphery and fitted in an annular groove which is formed in the valve stem at the portion thereof projecting upward beyond the position. The divided ring is formed in its outer periphery with an annular recess having fitted therein the inner peripheral portion of the C-ring.

REFERENCES:
patent: 3457842 (1969-07-01), Tennis
patent: 3654839 (1972-04-01), Thompson
patent: 4180274 (1979-12-01), Tucek
patent: 4223867 (1980-09-01), Niino et al.
patent: 4236875 (1980-12-01), Widdowson
patent: 4372333 (1983-02-01), Goans
patent: 4721283 (1988-01-01), Wilson
patent: 4728132 (1988-03-01), Brammall

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