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Leak detection system for pressurized pipeline

  • US 8,410,947 B1
  • Filed: 06/24/2010
  • Issued: 04/02/2013
  • Est. Priority Date: 06/24/2009
  • Status: Active Grant
First Claim
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1. A leak detection system for a pressurized pipeline used in conjunction with a fluid control valve having a valve actuator, which system comprises:

  • a normally flat, thin sheet of material having a pair of opposed ends brought together to form a cylinder around said pipeline so that said sheet has a spring force from a cylindrical position to a normally flat position;

    a seal between said cylinder and said pipeline to form a closed chamber around said pipeline;

    at least one fastener to hold said ends of said sheet together in said cylindrical position unless a force overcomes said fastener;

    a switch to detect movement of said cylinder toward said flat position; and

    a mechanism to connect said switch to said valve actuator to close said valve.

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