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:
Sep. 03, 2013
Filed:
Apr. 09, 2008
Applicants:
Valerio Bregonzio, San Giuliano Milanese, IT;
Antonio Passerini, Pavia, IT;
Inventors:
Valerio Bregonzio, San Giuliano Milanese, IT;
Antonio Passerini, Pavia, IT;
Assignee:
Saipem S.p.A., San Donato, Milanese, IT;
Primary Examiner:
Int. Cl.
CPC ...
F16L 1/12 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method of joining pipes to produce an underwater pipeline on a firing line includes supplying the firing line with pipes having previously roughened end portions; welding the end portions of adjacent pipes to form cutbacks, each of which is defined by two end portions, and by an annular weld bead between the two end portions; cleaning, by cryogenic blasting, the outer surface of each cutback; and forming a protective joint coating about each cutback.