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:
May. 06, 2008
Filed:
Mar. 12, 2004
Giovanni Chiesa, San Donato Milanese, IT;
Floriano Casola, Gazzada Schianno, IT;
François-régis Pionetti, La Baleine, FR;
Giovanni Chiesa, San Donato Milanese, IT;
Floriano Casola, Gazzada Schianno, IT;
François-Régis Pionetti, La Baleine, FR;
Saipem S.A., Montigny le Bretonneux, FR;
Abstract
Apparatus for heating and lagging at least one main undersea pipe for conveying a flow of hot effluent. The apparatus includes a covering of thermally insulating material surrounding the main pipe(s), and covered by a leaktight outer protective casing and an internal chamber coaxial with the outer casing. The insulating covering surrounds the internal chamber in an annular space between the outer casing and the internal chamber. The main pipe is contained inside an internal chamber that is preferably cylindrical in shape. A heat-transfer fluid having a maintained temperature surrounds the main pipe contained inside the internal chamber and is circulated inside the internal chamber.