Positive displacement centrifugal pump
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United States of America Patent
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-
Jan 16, 1996
Issued Date -
N/A
app pub date -
Jul 15, 1993
filing date -
Nov 14, 1988
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A positive displacement centrifugal pump comprises (a) a pressure generating mass rotatable about a first axis and radially movable relative to it upon rotation of the mass, (b) a pumping unit, and (c) a flexible, non-elastic tensioning element operatively connected to the mass and operable in the course of rotation of the mass to cause the mass to move radially inwardly toward the axis so as to effect intake and/or exhaust of fluid within the pump.
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