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Method and apparatus for detection of occlusions

  • US 6,362,591 B1
  • Filed: 10/28/1999
  • Issued: 03/26/2002
  • Est. Priority Date: 10/29/1998
  • Status: Expired due to Term
First Claim
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1. A method of detecting an occlusion in a fluid pump system, comprising:

  • applying input power parameters to a pump motor to provide a first pump cycle;

    measuring a first encoder count during the first pump cycle;

    determining whether the first encoder count is less than a first value; and

    rewinding the fluid pump system at least to the point of reducing pressure in the fluid pump system after determining that the first encoder count is less than the first value.

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