Peristaltic pump with tube pinching members capable of biasing t

Details Peristaltic pump with tube pinching members capable of biasing t Peristaltic pump with tube pinching members capable of biasing t

1975-12-22

1977-05-24

Croyle, Carlton R.

Pumps

Expansible chamber type

Elongated flexible chamber wall progressively deformed

417474, F04B 4308, F04B 4312, F04B 4506

Patent

active

040252418

ABSTRACT:
An improved peristaltic pump is described wherein the basic configurations of movable pump rollers, a base member and pump tubing compressed by the pump rollers against the spring loaded movable base member is improved by the addition of at least one actuating member capable of movement toward and away from an actuating position with respect to the base member. When the actuating members move toward their actuating positions, they compress the pump tubing against the base member and prevent fluid flow along the pump tubing. During such movement the actuating members also contact the base member and push it away from the pump rollers toward a non-pumping position so that movement of the pump rollers is no longer effective to cause pumping fluid along the pump tubing. When the actuating members are retracted from their actuating positions they allow the pump tubing to open for fluid flow therealong and allow the base member to return to a pumping position. A multiple channel pump assembly is also described.

REFERENCES:
patent: 2695567 (1954-11-01), Harvey
patent: 2877714 (1959-03-01), Sorg et al.
patent: 3227091 (1966-01-01), Isreeli et al.
patent: 3425357 (1969-02-01), Bilichniansky et al.
patent: 3542491 (1969-05-01), Newman
patent: 3730650 (1973-05-01), Kling
patent: 3918854 (1975-11-01), Catarious et al.

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