Pneumatically powerable double acting positive displacement flui

Details Pneumatically powerable double acting positive displacement flui Pneumatically powerable double acting positive displacement flui

1981-08-13

1982-10-19

Smith, Leonard E.

Pumps

Motor driven

Fluid motor

417454, F04B 1700

Patent

active

043548067

ABSTRACT:
A double acting positive displacement pump has first and second opposed cylinders, an elongate piston rod connected to cylinder pistons, a plurality of tie rods fastening the cylinders together, spacers on the tie rods and between the cylinders, a control cradle mounted on the tie rods and fixed in position by slots in the spacers, a propellant gas control valve on the cradle, and a valve actuator on the cradle and operatively connected to the piston rod.

REFERENCES:
patent: 151409 (1874-05-01), Markle
patent: 516410 (1894-03-01), Steitz
patent: 837252 (1906-11-01), Rose
patent: 1565886 (1925-12-01), Aikman
patent: 2034086 (1936-03-01), Clima et al.
patent: 2977040 (1961-03-01), Dulebohn
patent: 3349995 (1967-10-01), Sheesley
patent: 3652187 (1972-03-01), Loeffler
patent: 4123204 (1978-10-01), Scholle

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