Accession Number : ADD015550

Title :   Safe and Arm Device with Variable Arming Delay by Liquid Explosive.

Descriptive Note : Patent, Filed 30 Aug 91, patented 6 Oct 92,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Hardt, Lee R

Report Date : 06 Oct 1992

Pagination or Media Count : 8

Abstract : A safe and arm device, which has an explosive train interrupted by a void to establish a safe condition, has the void filled with a liquid explosive to establish an armed condition. The void may be in a manometer-like device in which the liquid explosive is motivated by fluid pressure corresponding to free-fall or other velocities. Premature arming may be prevented by forming the explosive liquid by melting a solid explosive with heat generated electrically. A selectively variable arming time delay may be provided by a variable orifice controlling the flow of the liquid explosive or by varying the temperature of the liquid to select its viscosity.

Descriptors :   *SAFING AND ARMING(ORDNANCE), *PATENTS, DELAY, EXPLOSIVE TRAINS, EXPLOSIVES, FLOW, FLUIDS, HEAT, LIQUID EXPLOSIVES, LIQUIDS, MANOMETERS, MELTING, ORIFICES, PRESSURE, SOLIDS, TEMPERATURE, TIME, VARIABLES, VELOCITY, VISCOSITY, VOIDS, ELECTRICITY

Subject Categories : Ammunition and Explosives
      Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE