Fluid circulation device
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United States of America Patent
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-
Nov 20, 2012
Grant Date -
Jan 8, 2009
app pub date -
Jun 18, 2008
filing date -
Jun 21, 2007
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A fluid circulation device includes a circuit of the fluid to be pumped, with a rigid cavity closed off by a soft membrane that cooperates with drive members driven by a motor in to-and-fro movements. The face of the drive members intended to cooperate with membrane is connected via a conduit to a vacuum pump able to apply by suction the membrane against the face of the drive members, so as to create a rigid connection between the drive members and the membrane that then exactly follows the to-and-fro movements imposed by the drive members.
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