USA As Represented by Secretary of the Navy

Frisco T Telmo

Raymond D Cooper

An improved rotating band for a projectile is disclosed. The rotating band omprises a plastic sleeve, two micarta inserts, and a retainer ring. One micarta insert, located in the middle of the plastic sleeve, contains grooves which increase the friction coefficient and elasticity of the rotating band. The second micarta insert, located further forward, provides additional barrel contact area. These improved characteristics enable the projectile to be retained in a hot gun when elevated or rammed at any velocity. A retainer ring is molded onto the aft end of the plastic sleeve to secure the invention to the projectile. The rotating band also acts as a seal and spins the projectile as it moves through the gun barrel. The rotating band disintegrates after the projectile exits the gun barrel.

Discarding rotating band for projectile

An enclosure for a warhead case which prevents a high order detonation of e warhead due to inadvertent initiation from physical, bullet, fragment impact, fire exposure or other factors causing a pressure buildup in the case. The warhead explosive is assembled in a hollow cylindrical warhead case having an open end and a closed end. An enclosure plate is positioned in the open end to close off the warhead in the case. The enclosure is circular and provided with a first plurality of radially extending apertures. The warhead case is provided with a second plurality of radially extending apertures which are positioned to coincide with the aperture in the enclosure plate. A plurality of pins are press fit into the case apertures so as to extend into the enclosure plate apertures and attach the enclosure plate to the warhead case. The pins are intended to fail structurally when the internal pressure of the warhead case reaches a predetermined threshold so as to remove the enclosure plate and relieve any pressure buildup that may cause a high order detonation of the warhead.

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King George, VA, United States of America

Frisco T Telmo