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. 07, 2009
Filed:
Aug. 25, 2006
Jeffrey L. Crotty, Coon Rapids, MN (US);
John F. Revolinski, Minneapolis, MN (US);
Jeffrey L. Crotty, Coon Rapids, MN (US);
John F. Revolinski, Minneapolis, MN (US);
BAE Systems Land & Armaments L.P., Arlington, VA (US);
Abstract
A gun for firing a round of caseless ammunition, a round of such ammunition having a projectile and a modular propellant, the projectile and a modular propellant being disposable for firing in a gun tube, includes an actuatable valve being selectively openable to the gun tube, the valve for drawing a negative pressure in the gun tube, the negative pressure acting to pull the round into contact with a breech face such that when a firing pin is forceably released, the firing pin reliably strikes a primer of the modular propellant, the primer igniting the modular propellant, the ignited propellant forcefully discharging the projectile from the gun tube. A firing pin and valve assembly and a method of operating a gun are further included.