Ammunition and explosives – Igniting devices and systems – Electrical primer or ignitor
Patent
1985-10-07
1987-04-28
Nelson, Peter A.
Ammunition and explosives
Igniting devices and systems
Electrical primer or ignitor
1022753, 1022756, 10227512, 1022754, 1022757, 1022755, 10227511, 89 114, F42B 318, C06C 504
Patent
active
046604723
ABSTRACT:
A pyrotechnic system for transmitting an initiation stimulus through a bulkhead in which a pressure seal is to be maintained includes an ordnance transfer line for initiating illuminating charge of pyrotechnic material such as certain metal-oxidizer mixes which have a high reaction temperature and high emissivity. The radiation energy produced is transmitted through a sealed window which serves as a focussing lens to irradiate a booster charge. The booster charge, in turn, may be made to initiate a transfer line, serve as an igniter or pressure cartridge. Only deflagrating materials are used in the system.
A safe and arm mechanism is obtained by incorporating a mechanical shutter which blocks the radiation from the illuminating charge to the booster charge when in the "SAFE" position and allows the radiation to be transmitted when in the ARM position.
REFERENCES:
patent: 3371607 (1968-03-01), Olsson
patent: 4265177 (1981-05-01), Lundborg et al.
patent: 4319526 (1982-03-01), DerMott
patent: 4423682 (1984-01-01), Schimmel
patent: 4424747 (1984-01-01), Yunan
patent: 4608926 (1986-09-01), Stevens
Morton Thiokol Inc.
Nelson Peter A.
White Gerald K.
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