Piston pumps driven by fluid-actuated piston having a constant f

Details Piston pumps driven by fluid-actuated piston having a constant f Piston pumps driven by fluid-actuated piston having a constant f

1975-07-28

1978-01-17

Croyle, Carlton R.

Pumps

Motor driven

Fluid motor

91298, 91321, F04B 1700, F04B 3500

Patent

active

040689832

ABSTRACT:
A reciprocating pump for liquids has a shuttle valve for directing motive fluid alternatively to small- and large-area faces of a piston. The motive fluid directed to the small-area face acts as a spring for causing reciprocation.

REFERENCES:
patent: 245777 (1881-08-01), Brazelle
patent: 574003 (1896-12-01), Rinsche
patent: 973378 (1910-10-01), Otto
patent: 1306301 (1919-06-01), Chadwick
patent: 2348243 (1944-05-01), Cole
patent: 2406747 (1946-09-01), Davis
patent: 3440967 (1969-04-01), Pennther
patent: 3839863 (1974-10-01), Frazier

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