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:
Nov. 22, 2011
Filed:
Dec. 13, 2007
Applicant:
Serafino Cittadini Bellini, Ascoli Piceno, IT;
Inventor:
Serafino Cittadini Bellini, Ascoli Piceno, IT;
Assignee:
Saipem S.p.A., San Donato Milanese, IT;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B23K 31/02 (2006.01); F16L 1/12 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method of joining pipes () to produce underwater pipelines (), wherein the facing free ends () of two adjacent pipes (), aligned along an axis (A), 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 ().