Accession Number : ADD014464

Title :   Nonvolatile, Fast Response Wire Cutter.

Descriptive Note : Patent application, filed 2 Oct 89,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Cherry, Christopher R

Report Date : 02 Oct 1989

Pagination or Media Count : 19

Abstract : This invention relates to the field of performing mechanical motion from a stand-off distance. In particular, for providing mechanical shearing or percussion detonation, without the use of explosives. It is especially useful when the mechanical motion must be exactly or precisely timed, such as is required for cutting wires when disarming sophisticated improvised explosive devices. The objects and advantages of the present invention are obtained by using one or more strands of shock tube which then propels one or more pistons down one or more barrels to perform mechanical functions. This invention discloses a device that remotely performs mechanical work functions, and remotely severs wires. It can be safely employed adjacent to the most sensitive commercial dynamites. The wire cutter has a fast response time; that is, it severs wires in microseconds with a simultaneously of severance time in less than 250 microseconds. The device performs pyrotechnic ignition and mechanical work functions required in theatrical special effects safely without the need for explosive detonators or high pressure squibs. This method of wire cutting can engage multiple cutters as needed. The system of Explosive Ordnance Disposal (EOD) wire cutting is reusable, and the device is low cost and constructed from readily available off-the-shelf parts. Patent applications. (aw)

Descriptors :   CUTTERS, CUTTING, DETONATIONS, DETONATORS, EXPLOSIVE CHARGES, EXPLOSIVE ORDNANCE DISPOSAL, EXPLOSIVES, EXPLOSIVES INITIATORS, HIGH PRESSURE, IGNITION, LOW COSTS, MECHANICAL ENGINEERING, MECHANICAL PROPERTIES, MECHANICAL WORKING, MOTION, OFF THE SHELF EQUIPMENT, PARTS, PATENT APPLICATIONS, PISTONS, PYROTECHNICS, QUICK REACTION, RANGE(DISTANCE), SHOCK TUBES, STANDOFF, STRANDS, WIRE

Subject Categories : Ammunition and Explosives

Distribution Statement : APPROVED FOR PUBLIC RELEASE