Cement pump with removable discharge chamber cartridge

Details Cement pump with removable discharge chamber cartridge Cement pump with removable discharge chamber cartridge

1988-02-04

1989-11-14

Croyle, Carlton R.

Pumps

Expansible chamber type

Plural pumping chambers

417539, 417900, F04B 1502, F04B 2102

Patent

active

048803650

ABSTRACT:
A double acting concrete pump includes a pair of pump cylinders with a piston slidable back and forth in each cylinder, the pistons being driven in opposite directions, a connecting manifold connecting each of the cylinder outlets to a source of cement via separate pumping chambers, and a separate, removable discharge manifold for connecting the pumping chamber outlets to a delivery outlet. The discharge manifold has a discharge chamber with a pair of inlets connected to the respective pumping chamber outlets, and a single discharge outlet, with an outlet control valve in the discharge chamber for alternately isolating the flow from each of the pumping chambers to the discharge outlet in response to the pumping action.

REFERENCES:
patent: 1991342 (1935-02-01), Ball
patent: 3639086 (1972-02-01), Robbins
patent: 3647325 (1972-03-01), Johnson
patent: 3811802 (1974-05-01), Semple
patent: 3951572 (1976-04-01), Ray, Jr. et al.
patent: 3994631 (1976-11-01), Hostetter
patent: 4067666 (1978-01-01), Richards
patent: 4174928 (1979-11-01), Austin
patent: 4437817 (1984-03-01), Wetzelder
patent: 4634352 (1987-01-01), Austin

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