Pumps – Expansible chamber type – Elongated flexible chamber wall progressively deformed
Patent
1994-05-05
1995-11-28
Bertsch, Richard A.
Pumps
Expansible chamber type
Elongated flexible chamber wall progressively deformed
236 44R, 119 35, F04B 4308
Patent
active
054702127
ABSTRACT:
There is disclosed a peristaltic pump which comprises a flexible tube for the passage of a fluid having an inlet and an outlet and a roller assembly comprising a number of rollers and a rotatable support, the rollers being mounted on and extending substantially perpendicularly outward from the rotatable support and the tube being stretched over the roller assembly so that it extends substantially perpendicularly to the rollers and through substantially 360.degree. around the roller assembly and where the tube contacts a roller it is compressed against that roller, the arrangement being such that in use where the tube is compressed against a roller it is occluded and rotation of the roller assembly causes each roller to contact and thereby occlude successive parts of the tube forcing fluid contained in the tube and trapped between the occlusions to be moved along the tube from the inlet towards the outlet.
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Bertsch Richard A.
Korytnyk Peter G.
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