Peristaltic pump having inflatable pumping members

Details Peristaltic pump having inflatable pumping members Peristaltic pump having inflatable pumping members

1990-06-20

1991-08-20

Leonard, E.

Pumps

Expansible chamber type

Elongated flexible chamber wall progressively deformed

604153, F04B 4312

Patent

active

050409557

ABSTRACT:
A peristaltic pump has a series of inflatable members which serve to sequentially restrict a fluid passage in order to provide the pumping action. The fluid passageway is a closed passage as for example a tube. However in certain applications the principles of this invention may be applicable to an open passage such as a trough. In one embodiment, a series of inflatable toroidal members are mounted on a tube that has a flexible wall. When sequentially inflated, the toroidal members sequentially squeeze the wall into engagement with a centrally disposed mandrel, thusly, providing a peristaltic pumping action.

REFERENCES:
patent: 2926614 (1960-03-01), Rose, Jr.
patent: 3560114 (1971-02-01), Boyle
patent: 3877838 (1975-04-01), Choy

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