Method and apparatus for sealing leaking pipeline joints
AssigneeBTR Industries Limited
InventorEdward Peter Smith
Life of this patent
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Abstract
A leaking joint in a pipeline is sealed by locating a separable mould around the joint to form in conjunction with the pipeline a mould chamber enclosing the joint. Sealant is injected into the mould chamber and the volume of the mould chamber is reduced by deforming a flexible wall of the chamber to pressurize the sealant to a pressure above that inside the pipeline until the sealant has solidified around the joint.
Claims8
Apparatus for sealing a leaking joint in a pipeline, which apparatus comprises a separable mould which can be located around, and sealed to, a pipeline, which mould comprises a flexible inner lining which in use defines in conjunction with the pipeline a mould chamber enclosing the joint, an outer rigid casing which in use surrounds and is sealingly connected to the lining to provide a space therebetween, means to allow sealant under pressure to be injected into the mould chamber and means for connecting the space between the lining and the casing to a source of fluid pressure.
Dependencies are inferred from the claim text.