Method and apparatus for sealing leaking pipeline joints

Details Method and apparatus for sealing leaking pipeline joints Method and apparatus for sealing leaking pipeline joints

1974-05-23

1976-02-17

Husar, Francis S.

Static molds

Uniting preform with molding material

Mold supported by and girdles preform

264261, 264263, B22D 1904, B23P 700

Patent

active

039387747

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.

REFERENCES:
patent: 881665 (1908-03-01), Corcoran
patent: 2180810 (1939-11-01), Keegan
patent: 2785450 (1957-03-01), Willett
patent: 2832111 (1958-04-01), Thomas
patent: 3368005 (1968-02-01), Buczala
patent: 3467141 (1969-09-01), Smith

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