The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 16, 2014
Filed:
Nov. 22, 2011
Applicant:
Serafino Cittadini Bellini, Ascoli Piceno, IT;
Inventor:
Serafino Cittadini Bellini, Ascoli Piceno, IT;
Assignee:
Saipem S.p.A., , IT;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B23K 31/02 (2006.01); B29C 47/02 (2006.01); F16L 13/00 (2006.01); B29C 47/92 (2006.01); B29C 47/08 (2006.01); F16L 58/18 (2006.01); B23K 37/053 (2006.01); B29C 47/12 (2006.01); F16L 13/02 (2006.01); F16L 1/26 (2006.01); B29C 47/00 (2006.01);
U.S. Cl.
CPC ...
F16L 13/00 (2013.01); B29C 47/028 (2013.01); B29C 47/92 (2013.01); B29C 47/0806 (2013.01); B29C 2947/9258 (2013.01); F16L 58/181 (2013.01); B23K 37/0533 (2013.01); B23K 2201/10 (2013.01); B29C 47/0866 (2013.01); B29C 2947/926 (2013.01); B29C 47/126 (2013.01); F16L 13/0272 (2013.01); B29C 47/0021 (2013.01); F16L 1/26 (2013.01); B29C 47/021 (2013.01); B29C 2947/92904 (2013.01);
Abstract
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.