Rocket motor protection device during slow cook-off test

Details Rocket motor protection device during slow cook-off test Rocket motor protection device during slow cook-off test

1995-01-10

1998-09-29

Freay, Charles G.

Power plants

Reaction motor

With destruction sensing and preventing means

60254, 102481, 220 881, F02K 900

Patent

active

058132198

ABSTRACT:
The invention relates to a device for imparting a non-explosive and a non-propulsive property to a rocket motor casing made from a composite material during a slow cook-off test, which consists of using a predetermined pyrotechnic pellet having an ignition temperature of at least 140.degree. C. but below the violent ignition temperature of the propellant material under slow cook conditions, whereby the composite material of said casing is significantly weakened in the predetermined temperature, causing a casing failure and a non-propulsive burning of the rocket motor. The predetermined pyrotechnic pellet is located on the inner surface and will ignite the propellant grain at a lower rate.

REFERENCES:
patent: 4478151 (1984-10-01), Vetter et al.
patent: 4911795 (1990-03-01), Oliff, Jr.
patent: 4961313 (1990-10-01), Dolan
patent: 5044154 (1991-09-01), English, Jr. et al.
patent: 5228285 (1993-07-01), Van Name et al.

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