Sealing apparatus

Details Sealing apparatus Sealing apparatus

2011-08-09

2011-08-09

Hook, James F (Department: 3754)

Pipes and tubular conduits

Repairing

Patches

C138S092000

Reexamination Certificate

active

07992594

ABSTRACT:
An apparatus for sealing a pipe having a defect or penetration comprises a housing coupled to the pipe by a clamp member. A piston is mounted in the housing and the piston and housing define a chamber. The piston further comprises a port for providing fluid communication between the pipe and the chamber. A seal member is provided between the piston and the pipe and, in use, the apparatus is located over and/or around the defect or penetration in the pipe such that the seal member engages the pipe. The piston is urged towards the pipe by a fluid pressure force generated by fluid in the pipe thereby maintain sealing engagement between the seal member and the pipe and to prevent leakage of fluid through the penetration.

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Search Report Under Section 17 for Application No. GB0813209.4 dated Nov. 18, 2008.

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