Pump for fluent, and especially heavy and abrasive materials

Details Pump for fluent, and especially heavy and abrasive materials Pump for fluent, and especially heavy and abrasive materials

1975-08-25

1977-07-12

Croyle, Carlton R.

Pumps

Motor driven

Fluid motor

417489, 417540, F04B 704

Patent

active

040351092

ABSTRACT:
A pump for fluent materials, and especially suitable for heavy and abrasive materials, has a piston in substantial clearance relation within a cylinder and operable in a pumping stroke to drive into a combination valving, wiping and sealing elastomeric ring about the discharge portion from the cylinder, so that the pumped material has minimal drag and wearing contact with relatively moving parts in the pump. The pump is adaptable for double action and proportional pumping.
A self-reversing piston-driving fluid actuated motor is provided.

REFERENCES:
patent: 2670877 (1954-03-01), Logue
patent: 2786656 (1957-03-01), Corneil
patent: 3174409 (1965-03-01), Hill
patent: 3730398 (1973-05-01), Goda
patent: 3802805 (1974-04-01), Roeser
patent: 3838943 (1974-10-01), Ulbing

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