Fluid driven reciprocating pump

Details Fluid driven reciprocating pump Fluid driven reciprocating pump

1987-01-27

1988-03-01

Smith, Leonard E.

Pumps

Motor driven

Fluid motor

91309, 91312, F04B 4306

Patent

active

047282673

ABSTRACT:
A fluid driven reciprocating pump comprises a pair of heads each containing a displaceable member defining a drive chamber and a pump chamber on opposite sides of the diaphragm in one head, and a drive chamber and an inactive chamber on opposite sides of the diaphragm in the other head. A mechanical coupling connects the two displaceable members for reciprocation together; and a control valve assembly connects the drive chambers of both heads to a source of pressurized fluid for driving them through forward strokes, a spring driving the heads through return strokes.

REFERENCES:
patent: 2679209 (1954-05-01), Fischer et al.
patent: 3460482 (1969-08-01), Jackson
patent: 3838946 (1974-10-01), Schall
patent: 4021149 (1977-05-01), Rutenberg et al.
patent: 4334838 (1982-06-01), Fessler et al.

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