Stress modulator ring and microgrooved base for an ammunition ca

Ammunition and explosives – Cartridges – Case

Patent

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Details

102430, 102469, F42B 530

Patent

active

047262966

ABSTRACT:
An ammunition cartridge has a plastic case and a metal base having a plurality of grooves around the periphery thereof. The plastic case has an interference fit with the base. The plastic creeps into the grooves after being interference fit over the base to relieve the stress in the plastic. A stress modulator ring surrounds the plastic member in the area of the grooves.

REFERENCES:
patent: 3099958 (1963-08-01), Daubenspeck et al.
patent: 3242789 (1966-03-01), Woodring
patent: 3370534 (1968-02-01), Herter
patent: 3842739 (1974-10-01), Scanlon et al.
patent: 3955506 (1976-03-01), Luther et al.

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