Dispersive subprojectiles for chaff cartridges
AssigneeCalspan Corporation
InventorsClayton J. Schneider, Jr., Ernest V. Ruda
Life of this patent
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Abstract
A chaff cartridge is made up of a plurality of chaff interpackets contained in subprojectiles. The subprojectiles are each provided with fins and the fins of each subprojectile in a chaff cartridge provide a different drag to cause the spacing out of the subprojectiles. The fins, additionally, cause the subprojectiles to rotate and thereby radially disperse the chaff.
Claims13
In a chaff cartridge of the type having a casing, a primer, a fuze, a propellant charge and a plurality of chaff fibers wherein the improvement comprises a plurality of chaff subprojectiles each of which including:
- means defining axially opening cup-like members for receiving said chaff fibers and having outwardly tapering inner walls for directing said chaff fibers radially outward when said subprojectiles are subjected to centrifugal forces;
- and
- drag producing means for separating said projectiles and converting forward motion to rotational motion and for causing said subprojectiles to rotate and thereby produce centrifugal forces which cause said chaff fibers to coact with said tapering inner walls and to be radially dispensed with respect to said rotating subprojectiles upon the firing of said chaff cartridge due solely to centrifugal and inertial forces.
A subprojectile for use in a chaff cartridge including:
- chaff fibers;
- means defining an axially opening cup-like member for receiving said chaff fibers and having outwardly tapering inner walls for directing said chaff fibers radially outward when said subprojectile is subjected to centrifugal forces;
- and
- drag producing means for converting forward motion to rotational motion and causing said subprojectile to rotate and thereby produce centrifugal forces which cause said chaff fibers to coact with said tapering inner walls and to be radially dispensed with respect to said projectile when said projectile is rotating.
Dependencies are inferred from the claim text.