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:
Feb. 08, 1994
Filed:
Jul. 07, 1992
Applicant:
Inventor:
Gerard Rousseau, Saint Aubin de Medoc, FR;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C23C / ;
U.S. Cl.
CPC ...
427574 ; 427577 ; 427578 ; 427249 ; 4274197 ;
Abstract
A process for making a composite material wherein carbon reinforcing fibers may be coated with a carbon coating and a silicon carbide coating. The fibers are then densified in a carbon-based matrix, covered by a first silicon carbide layer, optionally sealed by a second silicon carbide coating, then an aluminum nitride or hafnium nitride coating and finally an outer alumina coating are applied. This stainless material can be used as a heat shield for space shuttles.