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:
Aug. 19, 2003
Filed:
Sep. 06, 2001
Applicant:
Inventors:
Joseph Roger Herdy, Jr., Owens Cross Roads, AL (US);
Michel Roger Kamel, Montreal, Quebec, CA;
Jacob Brian Lopata, Skokie, IL (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02K 9/64 ;
U.S. Cl.
CPC ...
F02K 9/64 ;
Abstract
A rocket engine having a combustion chamber with a chamber inner wall, a throat with a throat inner wall, and a nozzle with a nozzle inner wall is provided. The chamber inner wall is a vacuum plasma sprayed metal, the throat inner wall is a vacuum plasma sprayed metal, and the nozzle inner wall is a vacuum plasma sprayed metal. The porosity of the vacuum plasma sprayed metal varies in an axial direction of the engine.