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:
Dec. 18, 2001
Filed:
Jul. 02, 1999
Applicant:
Inventor:
Kent P. Hennessey, Fairfax, VA (US);
Assignee:
Atlantic Research Corporation, Gainesville, VA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02R 1/00 ;
U.S. Cl.
CPC ...
F02R 1/00 ;
Abstract
A rocket nozzle having an inlet, a middle region, a throat and an outlet, wherein a ratio of the cross-sectional area of the inlet to the throat is about 1.1. The middle region preferably has a shape which rises to an apex. Such a configuration places particles resulting from combustion on a trajectory which misses the wall of the nozzle at the throat or choke point, thereby decreasing throat erosion/ablation.