×

Pumping system and leak detection unit control therefor

  • US 3,273,753 A
  • Filed: 03/25/1965
  • Issued: 09/20/1966
  • Est. Priority Date: 03/25/1965
  • Status: Expired due to Term
First Claim
Patent Images

1. IN A PUMPING SYSTEM HAVING A PRESSURIZED DISCHARGE LINE AND AN ELECTRICAL CONTROL CIRCUIT FOR ACTUATING A PUMPING MEANS TO DISCHARGE FLUID THROUGH THE LINE, A VOLUME SENSITIVE LEAK DETECTOR COMPRISING, A CHAMBER CONNECTED TO THE PRESSURIZED LINE AND HAVING A MEMBER MOVABLY MOUNTED TO RESPOND TO THE VOLUME OF FLUID THEREIN AND HAVING MEANS URGING SAID MEMBER AGAINST THE FORCE OF THE LINE PRESSURE, AND A CONTROL MEANS HAVING A CIRCUIT ENABLING MEANS ADAPTED TO BE CONNECTED IN THE CONTROL CIRCUIT AND OPERABLY ASSOCIATED WITH SAID MEMBER TO DISPOSE THE ENABLING MEANS IN THE ENABLING POSITION WITH A SELECTED AMOUNT OF FLUID WITHIN THE CHAMBER AND TO DISPOSE THE ENABLING MEANS TO A DISABLING POSITION IN RESPONSE TO SELECTED VOLUMETRIC REDUCTION AS A RESULT OF FLUID DISCHARGED FROM SAID CHAMBER WHEREBY SAID CONTROL MEANS IS INSENSITIVE TO PRESSURE CHANGES AND SENSITIVE TO VOLUMETRIC CHANGES TO CONTROL THE PUMPING MEANS.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×