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:
Apr. 23, 2002
Filed:
Aug. 24, 2000
Jacques Dhellemmes, Versailles, FR;
Gaz Transport et Technigaz, Trappes, FR;
Abstract
Watertight and thermally insulating tank built into the bearing structure of a ship, said tank comprising two successive watertightness barriers, one being a primary one in contact with the product contained in the tank and the other being a secondary one placed between the primary barrier and the bearing structure, at least one thermally insulating barrier being provided between the bearing structure and the secondary watertightness barrier and/or between the two watertightness barriers, each thermally insulating barrier consisting of a number of caissons ( ) of roughly parallelepipedal overall shape, each caisson having a bottom panel ( ) and a top panel ( ) made of plywood, characterized in that the panels of each caisson are spaced apart by a number of spacer pieces ( ) which consist of thin sheets of plywood, extending at right angles to said panels, each caisson being at least partially filled with blocks of foam ( ), bonded over a substantial part of the height of each spacer piece, to prevent the spacer pieces from buckling under load.