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. 01, 1994
Filed:
Apr. 15, 1991
Applicant:
Inventors:
Richard B Kaplan, Beverly Hills, CA (US);
Hugh O Pierson, Albuquerque, NM (US);
J Grady Sheek, Forth Worth, TX (US);
Robert H Tuffias, Los Angeles, CA (US);
Brian E Williams, Chatsworth, CA (US);
Assignee:
Ultramet, Pacoima, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C30B / ;
U.S. Cl.
CPC ...
428216 ; 428212 ; 428408 ; 428472 ; 428698 ; 428704 ;
Abstract
A high temperature resistant structure which is capable of withstanding temperatures well in excess of 2500 degrees Fahrenheit in oxidizing environments for periods of at least several hours. A high temperature resistant substrate such as carbon carbon composite is coated in situ with very thin alternate layers of silicon carbide and a carbide formed from hafnium or zirconium. The coating is preferably formed using chemical vapor deposition procedures.