Valves and valve actuation – Fluid actuated or retarded – Piston type expansible chamber reciprocating valve actuator
Patent
1973-05-14
1976-01-27
Klinksiek, Henry T.
Valves and valve actuation
Fluid actuated or retarded
Piston type expansible chamber reciprocating valve actuator
277147, 138 943, 251157, 251190, F16K 31163
Patent
active
039348130
ABSTRACT:
A valve for a concrete pump having a front valve closing portion which in the closed position prevents flow through a T-pipe section, a supporting structure secured to the T-pipe section and an annular sealing band carried by the supporting structure and positioned about the valve closing portion.
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patent: 3420259 (1969-01-01), Dargitz
patent: 3524620 (1970-08-01), Gallagher
patent: 3529804 (1970-09-01), Perrin
patent: 3659970 (1972-05-01), McElroy
Challenge-Cook Bros. Incorporated
Klinksiek Henry T.
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