Propellant igniting system and method of making the same

Details Propellant igniting system and method of making the same Propellant igniting system and method of making the same

1995-12-22

1997-09-23

Tudor, Harold J.

Ammunition and explosives

Igniting devices and systems

Electrical primer or ignitor

102205, 10227511, 102282, 102431, 102470, 60256, 86 11, 149 2, 1491096, 264 31, F42C 19085

Patent

active

056707355

ABSTRACT:
An igniting system for a projectile propellant includes a combustible support tube having an outer surface and an inner surface; a plurality of throughgoing apertures provided in the support tube; a free igniting channel coaxially surrounded by the support tube; and an ignition transfer charge formed of a pyrotechnical hard foam layer having a thickness between 1 and 3 mm and being carried on the outer surface of the support tube. The hard foam layer is composed of a large-pore inner layer and two opposite surface layers which are of densely closed structure and between which the inner layer is sandwiched.

REFERENCES:
patent: 4864932 (1989-09-01), Reinelt et al.
patent: 4922823 (1990-05-01), Rahnenfuhrer et al.
patent: 5269224 (1993-12-01), Gonzales et al.
patent: 5454323 (1995-10-01), Conil

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