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. 28, 1987
Filed:
Dec. 28, 1984
Applicant:
Inventors:
Gilles Argy, La Queue En Yvelines, FR;
Michel M Grapin, Le Chesnay, FR;
Philippe Marchal, Lagny S/Marne, FR;
Assignee:
Hutchinson S.A., Paris, FR;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16L / ;
U.S. Cl.
CPC ...
285 45 ; 285 47 ; 285381 ; 285915 ; 285286 ; 138149 ;
Abstract
The present invention relates to improvements made to heat insulating means for piping subjected to high thermal, hydrostatic and mechanical stresses. The new insulating means comprises a plurality of sectors or layers made from a lacunal insulating material enclosing air, which sectors or layers are bonded together by sheets or layers of elastomer, and having undergone curing at a temperature less than or equal to 120.degree. C.