Dynamic brake with backlash control for peristaltic pump
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United States of America Patent
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-
Aug 26, 2003
Issued Date -
N/A
app pub date -
Feb 21, 2002
filing date -
Sep 30, 1996
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The present invention involves a dynamic brake for use in a peristaltic (i.e., roller) pump. The dynamic brake avoids backlash, due to counter rotation. In addition, it does not preclude the option of hand operating the roller pump. This is achieved by initiating the braking operation after the roller pump set-point has been set to zero and only after the roller pump has decelerated below a predefined speed (e.g., 20 rpm). In addition, the braking operation is activated for only a very brief period of time (i.e., a period of time required for the pressure in the roller pump fluid conduit to subside).
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