Accession Number : ADD018136

Title :   Breeching Device.

Descriptive Note : Patent, filed 30 Jun 95, patented 11 Jun 96,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Rozner, Alexander G ; Howder, Bernard P

Report Date : Jun 1996

Pagination or Media Count : 8

Abstract : A breaching device comprising a regular polygon structure in which identical, rectangular, Concave flying plate devices (shape charges) form the sides of the polygon, and a strong, rigid, lightweight structure holds the flying plate devices in position. The flying plate devices are identical and comprise a copper or copper alloy plate having a uniform thickness and a concave front face, a uniform elastomeric material layer attached to and covering the back convex surface of the metal plate, and a uniform layer of high energy plastic- bonded explosive covering the back of the layer of elastomeric material. The flying plate devices are oriented so that when simultaneously fired they fly in trajectories that are parallel to each other and perpendicular to the plane of the polygon.

Descriptors :   *BREECH MECHANISMS, *PATENTS, THICKNESS, LAYERS, MATERIALS, ELASTOMERS, SURFACES, HIGH ENERGY, PLATES, COPPER, METAL PLATES, SHAPED CHARGES, SIDES, TRAJECTORIES, PLASTICS, PLASTIC BONDED EXPLOSIVES, POLYGONS, CONCAVE BODIES, CONVEX BODIES, FLYER PLATES

Subject Categories : Ammunition and Explosives

Distribution Statement : APPROVED FOR PUBLIC RELEASE