Temporary protection or blocking for field joint in weight coati

Details Temporary protection or blocking for field joint in weight coati Temporary protection or blocking for field joint in weight coati

1976-11-22

1978-08-01

Gilliam, Paul R.

Pipes and tubular conduits

Repairing

29446, 138110, 285 45, 285288, F16L 104

Patent

active

041035054

ABSTRACT:
A gap or space existing in thick concrete coating on sea floor pipeline, as at welded joints, is temporarily filled before lowering pipeline to sea floor. The filling can be constituted with hardwood blocks which can be held in place on the pipeline, as at a welded joint, by conventional steel or other banding retention means surrounding the same. Usually, a circumferential gap or space exists between the end of the thick concrete coating on one segment of pipe and the end of a similar coating on another segment of pipe which have been welded together, the circumferential gap or space existing at the welded portions of the two segments. Ordinarily, the filling or blocks will be on the underside of the pipeline thus to allow it to pass over rollers on the pipelaying barge stinger, thus to avoid damage to the yard-applied concrete coating when pipeline is temporarily laid on the sea bottom as when a storm is expected and then subsequently picked up and hauled back aboard the barge.

REFERENCES:
patent: 3321925 (1967-05-01), Shaw

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