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. 06, 2005
Filed:
Mar. 26, 2002
Luciano Tosi, Fiorenzuola, IT;
Renato Bonelli, Matelica, IT;
Luciano Tosi, Fiorenzuola, IT;
Renato Bonelli, Matelica, IT;
Saipem S.p.A., Milan, IT;
Abstract
A method of welding together the ends of outer pipe sections (A,B) of pipe-in-pipe pipeline to be laid on a seabed employs an annular member () interposed between adjacent lengths of pipe. The annular member comprises a first axial part () which fits within the end of the first outer pipe section, and a flange part () which is interposed between the adjacent ends of the two lengths of outer pipe sections (A,B) to be joined. The flange part () of the annular member () projects radially outwardly beyond the inside of the outer pipe sections (A,B) and terminates radially inwardly of the outside of the outer pipe sections (A,B), and provides some of the welding material for the joint.