Peristaltic pump

Details Peristaltic pump Peristaltic pump

2005-03-09

2009-12-01

Kramer, Devon C (Department: 3746)

Pumps

Expansible chamber type

Elongated flexible chamber wall progressively deformed

C417S476000, C417S477100, C417S477300, C417S477700, C417S477800

Reexamination Certificate

active

07625189

ABSTRACT:
A peristaltic pump, for propelling liquid through a flexible pump tube, includes an outer casing having a guiding channel wherein an operating portion of the pump tube extends along the guiding channel. The peristaltic pump further includes at least two pressuring rollers supported at the outer casing in a radially movable manner which can move outwardly to press against the operating portion of the pump tube. A center driving mechanism is supported at a center portion of the outer casing to radially push the pressure rollers and to drive the pressuring rollers to concurrently rotate such that the pressuring rollers roll against the operating portion of the pump tube for continuously propelling the fluid in the pump tube in the direction of rotation.

REFERENCES:
patent: 3723030 (1973-03-01), Gelfand
patent: 5630711 (1997-05-01), Luedtke et al.
patent: 6641249 (2003-11-01), Miyauchi
patent: 6733255 (2004-05-01), Ota et al.

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