Improved reduced energy cartridge and method for making same

(19)

(11)

EP 1 962 048 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	24.02.2010 Bulletin 2010/08

(43)	Date of publication A2:
	27.08.2008 Bulletin 2008/35

(21)	Application number: 08002544.8

(22)	Date of filing: 12.02.2008

(51)

International Patent Classification (IPC):

F42B 5/045^(2006.01)

F42B 8/02^(2006.01)

(84)	Designated Contracting States:
	AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
	Designated Extension States:
	AL BA MK RS

(30)

Priority:

22.02.2007 US 677638

(71)	Applicant: ALLIANT TECHSYSTEMS INC.
	Edina, MN 55436-1097 (US)

(72)	Inventors:
	Poore, Rochelle Diane Andover, MN 55304 (US) Goodlin, Drew Lee Isanti, MN 55040 (US) Head, Lawrence Peter Cambridge, MN 55008 (US) Hunt, Richard Dean Clear Lake, MN 55319 (US) Sandstrom, Joel Lee Corcoran, MN 55374-9783 (US)

(74)	Representative: Altenburg, Udo
	Patent- und Rechtsanwälte Bardehle . Pagenberg . Dost . Altenburg . Geissler Galileiplatz 1 81679 München 81679 München (DE)

(54)	Improved reduced energy cartridge and method for making same

(57) Improved Reduced Energy Cartridge and a method of manufacturing said cartridge comprising providing a cartridge body (20) with forward and rearward cavities (40,45) interconnected by an aperture (55), providing a piston (25) with a primer retaining cavity (75), inserting primer into the primer retaining cavity, securing the primer, placing a seal member (30) around the piston, inserting the piston and seal member combination into the rearward cavity of the cartridge body, and crimping at least a portion of the cartridge body to the piston.

Search report