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Method and apparatus for controlling a pump

  • US 3,957,395 A
  • Filed: 11/25/1974
  • Issued: 05/18/1976
  • Est. Priority Date: 11/25/1974
  • Status: Expired due to Term
First Claim
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1. A pumping system comprising aa pump having an inlet and discharge side,a valve having an inlet connected to the discharge side of said pump and having an output side, said valve being operable between first and second positions, one of said positions being a closed position and the other of said positions being an open position,pump stop means for initiating movement of said valve from said first position to said second position,means responsive to attainment by said valve of a position near said second position for stopping said pump,start means for initiating movement of said valve from said second to said first position, andmeans for preventing said pump from starting unless said valve is in said second position.

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