Composite ammunition casing with forward metallic portion

Details Composite ammunition casing with forward metallic portion Composite ammunition casing with forward metallic portion

1975-02-06

1976-11-09

Pendegrass, Verlin R.

Ammunition and explosives

Igniting devices and systems

102 44, F42B 526

Patent

active

039903664

ABSTRACT:
A composite ammunition casing, especially for use in repeating firearms or guns in whose chambers a temperature gradient develops, from a maximum at the forward throat portion to a minimum at the rear breech portion. The casing includes a forward metallic member and a rear member formed of a material having a lower temperature resistance, such as plastic. The casing members have an interlocking junction at a point spaced along the firearm chamber at which the expected local temperature of the chamber drops to a level within the temperature resistance capability of the rear member. The interlocking junction is formed by surface interruptions in the wall of the forward member, into which the material of the rear member projects.

REFERENCES:
patent: 3026802 (1962-03-01), Barnet et al.
patent: 3099958 (1963-08-01), Daubenspeck et al.
patent: 3842739 (1974-10-01), Scanlon et al.

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