Peristaltic pump

Details Peristaltic pump Peristaltic pump

1986-05-07

1990-03-20

Smith, Leonard E.

Pumps

Expansible chamber type

Elongated flexible chamber wall progressively deformed

F04B 4312

Patent

active

049097130

ABSTRACT:
A peristaltic pump comprising a race having an internal surface for supporting a flexible tube in a tube pumping region, and a rotor rotatably mounted about a rotor axis and carrying rollers that travel in a circular path adjacent to the tube pumping region, the rollers having a large diameter central portion between smaller diameter portions to cause the tube to be self-aligning at the central portion. Also disclosed are a cover mounted on the race for movement in a direction parallel to the rotation axis between a loading position spaced from the race sufficiently to permit insertion of the tube through a tube insertion opening into a tube mounting region and an operational position in which the tube insertion opening is closed; and self-loading a tube into a peristaltic pump via rollers having a small diameter end portion and an adjacent larger diameter portion.

REFERENCES:
patent: 3396669 (1968-08-01), Everett
patent: 3737251 (1973-06-01), Berman et al.
patent: 3737256 (1973-06-01), Devries
patent: 3832096 (1974-08-01), Gelfand
patent: 4392794 (1983-07-01), Foxcroft
patent: 4472117 (1984-09-01), Wenstrup
patent: 4530647 (1985-07-01), Uno
patent: 4586882 (1986-05-01), Tseng
patent: 4861242 (1989-08-01), Finsterwald

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