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. 02, 2001
Filed:
Dec. 04, 1998
Applicant:
Inventors:
Brian J. Isle, St. Francis, MN (US);
Gerald L. Dittmann, Woodbury, MN (US);
Amir Chaboki, Minneapolis, MN (US);
Steven R. Zelenak, Champlin, MN (US);
Timothy W. Petersen, Burnsville, MN (US);
Assignee:
United Defense, L.P., Arlington, VA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F42B 5/16 ;
U.S. Cl.
CPC ...
F42B 5/16 ;
Abstract
The invention provides an improved propellant system for firing projectiles in large caliber guns. Strips of energetic propellant are placed in the cartridge case so that the lengths of the strips are parallel to the length of the cartridge. Preferably, the strips are placed in a radially symmetric pattern. The strips provide passageways that allow ignition gasses to flow radially in the cartridge case and along the length of the cartridge case.