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:
Jan. 06, 2004
Filed:
May. 21, 2002
Salvatore Thomas Bruno, Newark, CA (US);
Christopher Anthony Koch, Fremont, CA (US);
Yazdan Paul Mantilla, Santa Clara, CA (US);
Sanjay B. Prasad, Mountain View, CA (US);
Jerome Paul Wittenauer, Palo Alto, CA (US);
Deborah Lynn Yaney, Sunnyvale, CA (US);
Joseph Zegarski, Montara, CA (US);
Lockheed Corporation, Bethesda, MD (US);
Abstract
A method of making heat engine components, such as rocket nozzle throats, includes forming a body having at least one surface, wherein the body is made of a refractory metal, and compressing a ceramic powder between a die and the at least one surface of the body, with sufficient heat and pressure to densify and thus form a solid ceramic coating on the at least one surface of the body. Nozzle throats made according to the invention have bodies made of refractory metals, such as tantalum, and ceramic coatings on the inner surfaces of the annular bodies, wherein the ceramic coatings are made of ceramic materials such as tantalum carbide.