Peristalic rubber impeller pump

Details Peristalic rubber impeller pump Peristalic rubber impeller pump

1997-09-08

2000-08-01

Thorpe, Timothy S.

Rotary expansible chamber devices

Collapsible progressively deformed working chamber wall

F04C 200

Patent

active

06095776&

ABSTRACT:
A fluid handling pump for precise metering applications includes a flexible impeller mounted on a shaft that is eccentric to the centerline of a cylindrical chamber of the pump's housing. The impeller includes a plurality of flexible walls, that cooperate with an integrally molded hub and a rim like spokes, to define a plurality of compressible chambers. During rotation of the impeller, the volume of the compressible impeller chambers varies from a maximum in passing the pump's suction port to a minimum when sweeping past the pump's discharge port. In this way, a peristaltic pumping action takes place.

REFERENCES:
patent: 4334842 (1982-06-01), Ikeda et al.
patent: 4456442 (1984-06-01), Gnagnetti
Modern Plastics Encyclopedia '92, Mid-October Issue, Oct. 1991.

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