Concrete pump valve

Details Concrete pump valve Concrete pump valve

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.

REFERENCES:
patent: 807739 (1905-12-01), Hanson
patent: 940098 (1909-11-01), Wehrle
patent: 1545696 (1925-07-01), Riley
patent: 1671161 (1928-05-01), Perks
patent: 1681381 (1928-08-01), Tolman
patent: 1964044 (1934-06-01), Engel
patent: 1980335 (1934-11-01), Hewitt et al.
patent: 2650839 (1953-09-01), Newell
patent: 2733041 (1956-01-01), Crookston
patent: 3420259 (1969-01-01), Dargitz
patent: 3524620 (1970-08-01), Gallagher
patent: 3529804 (1970-09-01), Perrin
patent: 3659970 (1972-05-01), McElroy

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