Peristaltic pump with flow control

Details Peristaltic pump with flow control Peristaltic pump with flow control

1997-09-18

2000-08-08

Thorpe, Timothy S.

Pumps

Expansible chamber type

Elongated flexible chamber wall progressively deformed

4174771, 4174779, F04B 4312

Patent

active

060992727

ABSTRACT:
A rotary peristaltic pump that can supply fluids accurately at desired flow rates and with the desired control over pulsations normally experienced when using peristaltic pumps. The control is provided, in one aspect, by varying the radius of the shell against which the compression devices act to deform the tubing. In another aspect, the torque needed to turn the rotor is equalized throughout the rotation of the rotor to further enhance the flow rate accuracy of the pump. Torque equalization is preferably enhanced by use of a torque control cam positioned about the rotor.

REFERENCES:
patent: 4558996 (1985-12-01), Becker
patent: 4568255 (1986-02-01), Lavender et al.
patent: 4976593 (1990-12-01), Miyamoto
patent: 5257917 (1993-11-01), Minarik et al.
patent: 5468129 (1995-11-01), Sunden et al.
patent: 5470211 (1995-11-01), Knott et al.
patent: 5482447 (1996-01-01), Sunden et al.
patent: 5630711 (1997-05-01), Luedtke et al.

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