Measuring and testing – With fluid pressure – Clamp – plug – or sealing feature
Patent
1974-02-22
1976-04-06
Ruehl, Charles A.
Measuring and testing
With fluid pressure
Clamp, plug, or sealing feature
G01M 302
Patent
active
039480852
ABSTRACT:
A pipeline closing head, for use in testing a pipeline after it has been laid on a submerged bed by subjecting the pipeline temporarily to internal pressure through the use of filling and emptying balls, is constituted by a hollow cylindrical body having a crowned closing element at one end and containing, at its other end, an air tight chamber housing the filling and emptying balls. Ducts and control valves through which fluid is supplied to said chamber to activate the filling and emptying balls and supply fluid pressure to the interior of the pipeline are housed within the cylindrical body so that they do not overhang the closing head, which may slide along a conventional ramp for the pipeline.
REFERENCES:
patent: 2705419 (1955-04-01), Chawner
patent: 3533447 (1970-10-01), Moore et al.
patent: 3720089 (1973-03-01), Davis et al.
Scodino Ambrogio
Ziliani Germano
Ruehl Charles A.
Saipem S.p.A.
Watson Ralph M.
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