Hydraulic pump gate apparatus

Details Hydraulic pump gate apparatus Hydraulic pump gate apparatus

1986-07-14

1989-08-08

Croyle, Carlton R.

Pumps

Expansible chamber type

Mechanically actuated distributor

417518, 417900, 13762518, F04B 700

Patent

active

048548383

ABSTRACT:
An improved, hydraulically controlled pump for coarse, viscous material such as, but not limited to, concrete, and a gate mechanism for the pump.

REFERENCES:
patent: 3098480 (1963-07-01), Worthington
patent: 3228340 (1966-01-01), Hubbard
patent: 3494377 (1970-02-01), Thuse
patent: 3682575 (1972-08-01), Guddal et al.
patent: 3908865 (1975-09-01), Day
patent: 3909160 (1975-09-01), Sherrod
patent: 4288206 (1981-09-01), Tigwell et al.
patent: 4472118 (1984-09-01), Schwing
patent: 4527953 (1985-07-01), Baker et al.
patent: 4718826 (1988-01-01), Simmer

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