Ammunition and explosives – Igniting devices and systems
Patent
1976-04-20
1978-03-28
Tudor, Harold
Ammunition and explosives
Igniting devices and systems
60 3982E, 102 39, 102 70R, 285192, F42B 1510
Patent
active
040809013
ABSTRACT:
A lightweight pyrogen igniter assembly including an elongated molded plastic tube adapted to contain a pyrogen charge and to be inserted into a rocket motor casing for ignition of the rocket motor charge with a molded plastic closure cap provided for the elongated tube and including an ignition charge within the cap for igniting the pyrogen charge and an electrically actuated ignition squib within the cap for igniting the ignition charge. The ignition charge is contained within a portion of the closure cap and it is retained therein by a noncorrosive ignition pellet retainer or screen which is adapted to rest on a shoulder of the elongated tube when the closure cap and tube are assembled together. The interior of the closure cap and the exterior of the elongated tube are provided with matching tapered spiral buttress threads to serve as the attachment means therefor. A circumferentially disposed metal ring is provided along the external circumference of the closure cap and is molded or captured within the plastic cap in the molding process to provide, along with O-ring seals, a leakproof rotary joint as part of the containing wall with the rocket motor casing when the igniter assembly is installed within the rocket motor casing.
REFERENCES:
patent: 2462135 (1949-02-01), Skinner
patent: 2561670 (1951-07-01), Miller et al.
patent: 3031842 (1962-05-01), Ledwith
patent: 3129561 (1964-04-01), Priapi
patent: 3151447 (1964-10-01), Bornstein
patent: 3190372 (1965-06-01), Johnson
patent: 3529418 (1970-09-01), Puckett et al.
patent: 3581662 (1971-06-01), Grebert
patent: 3780151 (1973-12-01), Heier
patent: 3906720 (1975-09-01), Boydston
Heier Wilbur C.
Lucy Melvin H.
Manning John R.
Nelson Wallace J.
Osborn Howard J.
The United States of America as represented by the Aministrator
Tudor Harold
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