Peristaltic Pump
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United States of America Patent
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N/A
Issued Date -
Jun 5, 2008
app pub date -
Oct 20, 2005
filing date -
Nov 26, 2004
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
Peristaltic pump comprising--a pump body (3) with a face containing at least a first groove (4) covered by a flexible membrane (2) fixed to said pump body (3), in such a way as to form a fluid tight channel, said membrane (2) furthermore comprising a sealing ridge (19) which is in permanent contact against said groove (4) so as to obtain a resting fluid tight sealing segment in the channel, --a movable pressure element (7) adapted to temporarily press a portion of the membrane (2) above said groove (4) and form a moving sealing segment in the channel, --driving means (8) adapted to move said movable pressure element (7) along said groove, said driving means (8) furthermore being adapted to move said movable pressure element (7) exclusively along a plane which is parallel to said pump body face, said sealing ridge (19) and/or said groove (4) being adapted to let said movable pressure element (7) in said parallel plane when moving over said sealing ridge (19), characterized by the fact that the movable pressure element (7) is rotatably fixed to an axis (9) forming part of said driving means (8), said axis (9) being parallel to the membrane (2).
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