Leak repair clamp

Details Leak repair clamp Leak repair clamp

1989-06-28

1992-06-02

Reese, Randolph A.

Pipe joints or couplings

Repair

285176, 285292, 285373, 285364, 285419, 285 90, 285411, 138 99, F16L 1700

Patent

active

051181398

ABSTRACT:
A leak repair clamp for pipe and pipe flanges providing a segmented frame adapted to receive interchangeable annular segmented inserts. All of the inserts provide for interlocking connection with the frame segments but each insert is adapted to fit around one particular diameter cylindrical surface out of a range of different diameter cylindrical surfaces. By selecting particular sized inserts, a single frame can accommodate a wide range of different diameter pipes and pipe fittings. When the insert segments are interlocked into the frame segments, the frame segments are then integrated by bolting threaded studs through flanges to form a unit, which in combination with two interlocked inserts is fastened around and against the cylindrical surface. Thrust restraining set screws are provided to prevent movement of the metal frame relative to the cylindrical surface the frame is fastened around and against. The leak repair clamp further includes injection valves to permit the injection of the liquid sealant into the annular space enclosed by the pipe and pipe clamp and integraded frame and insert unit.

REFERENCES:
patent: 3233907 (1966-02-01), Stanton
patent: 3258822 (1966-07-01), Schlesch et al.
patent: 4049296 (1977-09-01), Harrison
patent: 4406481 (1983-09-01), Summerell
patent: 4480860 (1984-11-01), Foresta et al.
patent: 4568091 (1986-02-01), Harrison
patent: 4644975 (1987-02-01), Fricker

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