Pipes and tubular conduits – Repairing – Patches
Patent
1983-01-21
1985-08-20
Shepperd, John W.
Pipes and tubular conduits
Repairing
Patches
29234, 29237, 29252, F16Z 5516
Patent
active
045358222
ABSTRACT:
A method and apparatus for installing a split fitting on an intermediate point of a pipeline. The apparatus includes remotely-controlled, power-operated manipulator elements operable to close segments of the fitting about the pipeline in the manner of a clamshell. The manipulator elements include cam means to initially close the fitting segments and C-clamp means to effect full closure of the fitting segments.
REFERENCES:
patent: 3502112 (1970-03-01), Hankila
patent: 3685545 (1972-08-01), Smith et al.
patent: 3744822 (1973-07-01), Arnold
patent: 4133557 (1979-01-01), Ahlstone
patent: 4342338 (1982-08-01), Glennie
patent: 4441328 (1984-04-01), Brister
Shepperd John W.
The Pipe Line Development Company
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