Cartridge case and cartridge arrangement and method

Details Cartridge case and cartridge arrangement and method Cartridge case and cartridge arrangement and method

1986-11-20

1988-04-19

Tudor, Harold J.

Ammunition and explosives

Cartridges

Case

29 131, 29453, 102430, 102464, F42B 530

Patent

active

047382023

ABSTRACT:
A cartridge case and cartridge arrangement and method in which a base is joined along an annular intermating chevron-shaped joint with a 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 and mode of practice of the invention 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 and mode of practice is disclosed in which both the sleeve and the base are formed of similar materials.

REFERENCES:
patent: 1233071 (1917-07-01), Lindquist
patent: 2535624 (1950-12-01), Burney
patent: 3955506 (1976-05-01), Luther et al.
patent: 4147107 (1979-04-01), Ringdal
patent: 4295425 (1981-10-01), Davis

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