Self-driving fluid pump

Details Self-driving fluid pump Self-driving fluid pump

1996-08-23

1998-05-26

Vrablik, John J.

Rotary expansible chamber devices

Interengaging rotating members

Multiple units

F04C 218, F04C 1300

Patent

active

057555664

ABSTRACT:
A pump suitable for use with delicate fluids such as food products. The pump includes a casing having an internal cavity that defines a pumping chamber, an inlet and an outlet port, a first and second pumping rotors mounted for rotation in the casing, each pumping rotor including a first set of angularly spaced apart projections and a second set of angularly spaced apart projections. The first and second sets of projections of one rotor are in a condition of mesh with the first and second sets of projections of the other rotor, respectively. This feature allows one rotor to drive the companion rotor, thus eliminating the need of separate drive gears.

REFERENCES:
patent: 2382042 (1945-08-01), Etnyre
patent: 2750891 (1956-06-01), Berry
patent: 3272140 (1966-09-01), Curry et al.
patent: 4277230 (1981-07-01), Muller
patent: 4776779 (1988-10-01), Crump
patent: 4907954 (1990-03-01), Slupski
patent: 5092751 (1992-03-01), Viktora

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