Valve means for use in a concrete material pump

Details Valve means for use in a concrete material pump Valve means for use in a concrete material pump

1977-10-07

1979-03-06

Croyle, Carlton R.

Pumps

Expansible chamber type

Mechanically actuated distributor

417519, 417900, F04B 1502

Patent

active

041428463

ABSTRACT:
A valve means for changing over concrete material passage is disclosed, wherein a rotational frusto-conical valve body is provided in a hopper. The interior of the valve body is provided with curved circular concrete material intake and discharge passages, the openings of which are alternatingly communicated with openings of double cylinders having pistons therein by rotating the valve body. The other end of the discharge passage is rotatably connected to a pipe to supply the concrete material into the outside of the hopper.

REFERENCES:
patent: 3298322 (1967-01-01), Sherrod
patent: 3726614 (1973-04-01), Schellenberg
patent: 3920357 (1975-11-01), Taylor
patent: 3963385 (1976-06-01), Caban
patent: 4046166 (1977-09-01), Bender

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