Pumps – Expansible chamber type – Plural pumping members in single pump chamber
Patent
1981-08-17
1983-06-07
Smith, Leonard E.
Pumps
Expansible chamber type
Plural pumping members in single pump chamber
92107, F04B 1900
Patent
active
043868894
ABSTRACT:
A positive displacement pump comprising an enclosure having parallel walls and a plurality of concentric annular rings reciprocally mounted between said walls is disclosed. By reciprocating the rings in a predetermined sequence, fluid is caused to flow through a series of radially propagating chambers defined by the rings.
REFERENCES:
patent: 1795236 (1931-03-01), Schupp
patent: 1922196 (1933-08-01), Butler
patent: 2703191 (1955-03-01), Jernander
patent: 3266433 (1966-08-01), Mason
patent: 3775027 (1973-11-01), Craft
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