Alliant Techsystems Inc.

Thiokol Corporation

Robert E Black

Mark A Solberg

Frederick W Van Name

Don C Carson

Harry W Doukakis

An embodiment of the rocket motor of this invention employs an insensitive munitions approach that, when subjected to elevated external temperatures, is activated by thermal expansion of the main propellant and gas generation from a secondary insensitive munitions charge. In a preferred embodiment, the rocket motor also includes a pressure equalizing system that accommodates changing temperature conditions during storage as well as varying gas pressure inherent in gun-launched systems in a manner that allows for thinner case cylinder design and increased propellant volume.

Rocket motors with insensitive munitions systems and projectiles including same

Rocket motors with insensitive munitions systems

The moisture or water vapor barrier protection of a composite pressure vessel suitable for use as a composite cased solid propellant rocket motor is improved by immersing the pressure vessel, during pressure testing thereof, in a curable liquid polymer solution, optionally containing electrically conductive material such as metallic flakes or powder, so that the solution may flow into open voids, cracks or fractures in the pressure vessel and subsequently curing the curable liquid polymer in said voids, cracks or fractures.

Method for improving moisture barrier protection and electrostatic

A rocket motor equipped with a movable nozzle is provided with pneumatic pressure system for the operation of the mechanism for moving the nozzle with a gas for the pneumatic supplied from a gas generating propellant separate from the main propellant but located within the motor itself.

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Newark, DE, United States of America

Robert E Black