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Leak locator

  • US 7,523,666 B2
  • Filed: 12/24/2003
  • Issued: 04/28/2009
  • Est. Priority Date: 12/27/2002
  • Status: Expired due to Term
First Claim
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1. A self-contained leak location device comprising a housing capable of travelling in a pipeline, the housing accommodating a hydrophone, a timer and a memory, wherein the hydrophone and the timer are capable of generating an output and the memory is capable of recording the hydrophone output with reference to the timer output, said device shaped and sized to travel in the flow of fluid through the pipeline and including a transmitter/receiver to allow the transmission and reception of signals to and from at least one location externally of the pipeline which allows the location of the device with respect to the pipeline to be determined, and wherein said device has substantially neutral buoyancy in the fluid passing through the pipeline so as to be positioned within the fluid out of contact with the pipeline and be swept along the pipeline by the fluid downstream to a retrieval point.

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