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:
Jun. 25, 1985
Filed:
Mar. 21, 1983
Applicant:
Inventors:
Jean Jamet, Janvry, FR;
Jean-Jacques Poupeau, St-Remy-les-Chevreuse, FR;
Jacqueline Omnes, Paris, FR;
Claude Le Pennec, Vincennes, FR;
Assignees:
Commissariat a l'Energie Atomique, Paris, FR;
Office National d'Etudes et de Recherche Aerospatiales, Chatilcon, FR;
Primary Examiner:
Int. Cl.
CPC ...
C01B / ; C01B / ;
U.S. Cl.
CPC ...
423449 ; 423445 ; 423448 ; 264 295 ;
Abstract
A method for the high temperature, high pressure impregnation of thick woven carbon substrates with pitches to form carbon impregnated carbon bodies. The use of pitch with high (about 30%) levels of free carbon as the impregnating pitch reduces the number of cycles to obtain a product of given density as compared to carbon free pitch. The impregnation is conducted in hydrogen permeable aneroid vessels.