Accurate peristaltic pump for non elastic tubing

Details Accurate peristaltic pump for non elastic tubing Accurate peristaltic pump for non elastic tubing

1990-03-13

1991-06-18

Smith, Leonard E.

Pumps

Expansible chamber type

Elongated flexible chamber wall progressively deformed

F04B 4312

Patent

active

050245864

ABSTRACT:
A peristaltic pump which corrects the effects of creep on a peristaltic tube. A plurality of spring biased rollers apply a substantially constant force to pinch the tube. A pair of elastic semi-circular sections are retained throughout the entire semi-circular back wall of the peristaltic pump. The pair of elastic semi-circular sections fully restore the initial cross-section of the tube in the area of the race where the rollers are not pinching the tube.

REFERENCES:
patent: 2831437 (1958-04-01), Cromwell et al.
patent: 2898864 (1959-08-01), Japolsky
patent: 4315718 (1982-02-01), Hogan
patent: 4492538 (1985-01-01), Iwata
patent: 4549860 (1985-10-01), Yakich
patent: 4558996 (1985-12-01), Becker
patent: 4705464 (1987-11-01), Arimond

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