Metal-plastic cartridge case and cartridge arrangement

Details Metal-plastic cartridge case and cartridge arrangement Metal-plastic cartridge case and cartridge arrangement

F - Mech Eng,Light,Heat,Weapons

42

B

102/18

F42B 5/26 (2006.01) F42B 5/073 (2006.01) F42B 5/307 (2006.01) F42B 7/06 (2006.01)

Patent

CA 1165179

Abstract of the Disclosure A cartridge case and cartridge arrangement in which a [metal] base is joined along an annular intermating chevron-shaped joint with a [glass-reinforced plastic] sleeve. In the illustrated and preferred embodiment the base is metal and the sleeve is glass-fiber-reinforced plastic. The case has a propellant, projectile, and a percussive primer. A plurality of circumferentially spaced vent holes are formed in the plastic sleeve along a portion of the chevron joint as an aid to reducing excessive interface friction loads at the chevron joint during firing of the cartridge. A less preferred modification is disclosed in which the base is formed of plastic material or a composite glass-plastic or other composite plastic material, and the sleeve is formed of metal. A further less preferred modification is disclosed in which both the sleeve and the base are formed of similar materials.

346369

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