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Peristaltic pump

  • US 4,599,055 A
  • Filed: 06/25/1985
  • Issued: 07/08/1986
  • Est. Priority Date: 06/25/1985
  • Status: Expired due to Term
First Claim
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1. A peristaltic pump comprisinga base,a rotor rotatably mounted about a rotor axis and carrying rollers that travel in a circular path,a race with an internal surface for supporting a flexible tube being squeezed by said rollers traveling in said circular path, said race being pivotally mounted on said base to move between an operating position in which said surface is adjacent to and concentric with said circular path and a tube loading position in which said surface is spaced from said circular path, andmeans to lock said race in said operating position, said means to lock comprising a spring-biased pin carried by said race, and a cam surface leading to a depression on said base, said cam surface being positioned to cam said pin as said race is pivoted into said operating position, said pin being biased into said depression when in said operating position.

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