Peristaltic pump with one piece tubing insert and one piece cove

Details Peristaltic pump with one piece tubing insert and one piece cove Peristaltic pump with one piece tubing insert and one piece cove

1993-12-15

1995-07-18

Bertsch, Richard A.

Pumps

Expansible chamber type

Elongated flexible chamber wall progressively deformed

F04B 4308

Patent

active

054335884

ABSTRACT:
A peristaltic pump includes a panel member having a rotatably driven rotor with roller elements on it, two projections which each have insert-receiving slots, two cover-supporting slots each extending away from a respective projection, and an orientation tab disposed between the projections. A one-piece insert has a platelike portion with ends slidably received in the insert-receiving slots, a recess which receives the orientation tab, and two pairs of aligned projections on opposite sides thereof, the insert further including a flexible tube extending around the rotor and having its ends engaging respective projections on one side of the platelike portion. A cover member is removably supported on the panel member by flanges which slidably engage the cover-receiving slots and by locking surfaces thereon which engage locking surfaces on the projections, the cover member including a curved surface adjacent and facing the roller elements on the rotor, and serving as a cover for the tube and rotor.

REFERENCES:
patent: 4239464 (1980-12-01), Hein
patent: 4548553 (1985-10-01), Ferster
patent: 4559040 (1985-12-01), Horres et al.
patent: 4599055 (1986-07-01), Dykstra
patent: 4735558 (1988-04-01), Kienholz et al.
patent: 4824339 (1989-04-01), Bainbridge
patent: 4904168 (1990-02-01), Cavoto et al.
patent: 4909713 (1990-03-01), Finsterwald
patent: 5017059 (1991-05-01), Davis
patent: 5230614 (1993-07-01), Zanger et al.
patent: 5256041 (1993-10-01), Tucker

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