Device for igniting a propellant charge, a cartridge for the cha

Details Device for igniting a propellant charge, a cartridge for the cha Device for igniting a propellant charge, a cartridge for the cha

1991-12-09

1993-06-01

Tudor, Harold J.

Ammunition and explosives

Jacketed or cartridge gas generator

For gas-powered tools or means

102205, 102466, 102470, 102702, C06D 500

Patent

active

052162001

ABSTRACT:
A device for igniting a propellant charge is provided with a housing defining a cavity wherein a piston is displaceably guided. The cavity is connected via a bore acting as a nozzle to a chamber wherein a case member of a cartridge is arranged for accommodating the propellant charge. A bottom wall of the case member is equipped with a bore aligned with the bore acting as a nozzle. A primer wafer is disposed on the inner surface of the bottom wall, this wafer being thinner in its central zone than in its marginal zone. The central zone of the primer wafer is a region under mechanical thermal stress during compression, the ignition energy being introduced to the primer wafer via this region in the form of hot compressed air from the compression chamber.

REFERENCES:
patent: 3302319 (1967-02-01), Rosselet
patent: 3372643 (1968-03-01), Kuavle
patent: 3410213 (1968-11-01), Stadler
patent: 3672300 (1972-06-01), Axelson et al.
patent: 3690260 (1972-09-01), Prior
patent: 3744420 (1973-07-01), Barr
patent: 3754507 (1973-08-01), Dillinger et al.
patent: 3911825 (1975-10-01), Gawlick et al.
patent: 4056062 (1977-11-01), Walser et al.
patent: 4856433 (1989-08-01), Evans

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