Automatic purger for a hydraulically controlled double diaphragm

Details Automatic purger for a hydraulically controlled double diaphragm Automatic purger for a hydraulically controlled double diaphragm

1985-05-23

1985-12-24

Smith, Leonard E.

Pumps

Motor driven

Fluid motor

417385, 417389, 92 97, 92 79, 137197, F04B 4306

Patent

active

045603243

ABSTRACT:
The automatic purger has an intermediate chamber (11) one of the walls of which is formed by an elastic diaphragm (10), termed front diaphragm, whereas the other wall is formed by a second elastic diaphragm (12), termed rear diaphragm. This chamber is connected to a purger (20) formed by a body (21) defining a small internal enclosure (22) in which an element (25), which is highly permeable to the gas, is disposed. The invention is applicable to a hydraulically controlled or actuated pump of the reciprocating or displacement type.

REFERENCES:
patent: 2619177 (1952-12-01), La Point
patent: 2827853 (1958-03-01), Bradley
patent: 2902936 (1959-09-01), Bradley
patent: 3030892 (1962-04-01), Piccardo
patent: 3036526 (1962-05-01), Hise
patent: 3149758 (1964-09-01), Rush et al.
patent: 3431823 (1969-03-01), Orlita
patent: 3605566 (1971-09-01), Vetter
patent: 3623700 (1971-11-01), Boteler

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