Ammunition and explosives – Jacketed or cartridge gas generator
Patent
1987-07-13
1989-08-15
Walsh, Donald P.
Ammunition and explosives
Jacketed or cartridge gas generator
102204, F42B 520
Patent
active
048564338
ABSTRACT:
An initiator device for activating air crew escape systems comprising a housing of elongate cylindric configuration defining a central chamber having a propellant gas discharge bore at one end and being open at the other end for receiving and static pressure mounting in the central chamber a pyrotechnic cartridge that is held in mounted position by a separate screw threaded head screw threadedly mounted in the housing open end, with the cartridge including a metallic body defining a compression chamber having at the portion of same that is engaged by the housing head, and having a piston received in the compression chamber that is frangibly secured to the cartridge body; the cartridge body also defines a separate pyrotechnic material receiving chamber that is open to the body compression chamber with a column of suitable pyrotechnic materials, tailored in light of the job to be done by the initiator, being mounted in the pyrotechnic material receiving chamber having a head end and terminating with an initiator pressure propellant charge, the initiator device head being formed and mounted, for driving the cartridge piston across the cartridge compression chamber to ignite by adiabatic compression the head end of pyrotechnic column contained in the cartridge, whereby on ignition of the propellant charge, the initiator activates air crew escape systems.
REFERENCES:
patent: 3726220 (1973-04-01), MacDonald
patent: 3972287 (1976-08-01), Travor
patent: 4099465 (1978-07-01), Haake
patent: 4135454 (1979-01-01), Morris
patent: 4231282 (1980-11-01), Ashley
patent: 4406229 (1983-09-01), Greene et al.
patent: 4429632 (1984-02-01), Yunan
patent: 4617866 (1986-10-01), Simpson
patent: 4646644 (1987-03-01), Richmond
Scot Incorporated
Walsh Donald P.
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