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:
Jul. 14, 2015
Filed:
Jun. 08, 2011
Applicants:
Scott K. Dawley, Culpeper, VA (US);
Mark Peyser Friedlander, Iii, Centreville, VA (US);
Inventors:
Scott K. Dawley, Culpeper, VA (US);
Mark Peyser Friedlander, III, Centreville, VA (US);
Assignee:
AEROJET ROCKETDYNE, INC., Rancho Cordova, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C06B 45/00 (2006.01); C06B 45/06 (2006.01); C06B 45/10 (2006.01); F02K 9/12 (2006.01); F02K 9/22 (2006.01);
U.S. Cl.
CPC ...
C06B 45/06 (2013.01); C06B 45/00 (2013.01); C06B 45/10 (2013.01); F02K 9/12 (2013.01); F02K 9/22 (2013.01); F05D 2250/232 (2013.01);
Abstract
An end-burning grain of a solid rocket motor or other gas-generating device is supplemented with one or more sticks of high-burn-rate propellant embedded in a matrix of a relatively low-burn-rate propellant. The sticks increase the burning surface area as the grain burns by forming conical indentations in the surface.