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:
Jan. 26, 1988
Filed:
Oct. 14, 1981
Applicant:
Inventors:
Henri Crohas, Meudon, FR;
Rene Blondy, Ris Orangis, FR;
Assignee:
Compagnie Francaise des Petroles, Paris, FR;
Primary Examiner:
Int. Cl.
CPC ...
E02D / ; G01M / ;
U.S. Cl.
CPC ...
405211 ; 405195 ; 73 4 / ;
Abstract
A marine platform comprising a structure composed of a lattice of tubular elements sealingly connected to one another, includes a crack detection system comprising pickups provided on at least some of the elements and adapted to detect the passage of fluid through a wall, each pickup including an autonomous energy source and an acoustic signal transmission means. A signal acquisition unit adapted to receive signals from the pickups is disposed on a non-submerged part of the platform.