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Flexible emergency gas pipeline plug

  • US 6,899,138 B2
  • Filed: 12/09/2003
  • Issued: 05/31/2005
  • Est. Priority Date: 12/09/2002
  • Status: Active Grant
First Claim
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1. An apparatus for stopping a high pressurized fluid from escaping a rupture in a pipeline, the apparatus comprising:

  • a support member having a first end, a second end, and an outer surface;

    an inner inflatable bladder sealingly engaging the first end and the second end of the support member and substantially covering the outer surface of the support member, the inner inflatable bladder comprising a material layer substantially impermeable to fluid;

    an outer material layer substantially encasing the inner inflatable bladder and sealingly engaging the first end and the second end of the support member, the outer material layer being formed of a woven fabric material capable of withstanding high inflation pressures of approximately 100 psi; and

    an inflation hose for supplying pressurized fluid between the outer surface of the support member and the inner inflatable bladder.

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