Pipe-joining method and apparatus for producing underwater pipelines, and underwater-pipeline-laying vessel comprising such an apparatus

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United States of America Patent

PATENT NO 8910852
SERIAL NO

13302200

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Abstract

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A method of joining pipes to produce underwater pipelines, wherein the facing free ends of two adjacent pipes, aligned along an axis, are welded to define a cutback; a protective sheet of plastic material is extruded close to the cutback; and the protective sheet is wound about the cutback by simultaneously rotating the extruder extrusion outlet and the extruder about the pipeline as the protective sheet is extruded from the extrusion outlet.

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Patent Owner(s)

  • SAIPEM S.P.A.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Cittadini, Bellini Serafino Ascoli Piceno, IT 5 25

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