Patent ID: 6539874
Filing Date: 2003-04-01
Classification: F42B,F42C

Abstract:
A cartridge with an electrothermal ignition device comprising:a cartridge including a combustible sleeve that is at least partially filled with a first propellant-charge powder, and a metal base connected to one end of the sleeve and forming the base of the cartridge; a high-voltage electrode extending through and insulated from the base; an electrically-conductive wire, which extends axially through the first propellant-charge powder, having a first end connected to the high-voltage electrode and a second end connected to an electrical contact disposed in a forward region of the combustible sleeve for contact with an inner wall of a gun barrel when the cartridge is fired; and, a tube formed of a second propellant-charge powder disposed in the first propellant charge powder along at least an axial portion of the combustible sleeve, and through which the electrically-conductive wire is guided axially with the second propellant-charge powder being an optically transparent propellant-charge powder.