Accession Number : ADD013110

Title :   Pin Rooted Blade Biaxial Air Seal.

Descriptive Note : Patent, Filed 18 May 84, patented 17 Sep 85,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Adams,James D

Report Date : 17 Sep 1985

Pagination or Media Count : 4

Abstract : A munition fuze electronic arming and firing controller includes a microprocessor and logic network which verify controller operation and provide an enabling signal necessary to arm the fuze. A signal of predetermined duration is twice produced by the microprocessor and is utilized with a clock signal continuously produced in the logic network to cause a counter to count during two separate periods. The resulting counter count is checked by verifying logic which outputs a signal only if the count is a predetermined count after each counting period. If the counter output is twice verified and an energy storage component external to the controller is charged to less than a predetermined minimum the logic network outputs an enabling signal which triggers the microprocessor to produce drive signals utilized to arm the fuze by charging the energy storage device. User selected inputs and firing sensor initiated inputs initiate munition detonation at a predetermined time and under predetermined conditions.

Descriptors :   *PATENTS, *ARMING DEVICES, *SAFING AND ARMING(ORDNANCE), *ELECTROSTATIC FUZES, BIAXIAL STRESSES, BLADES, GAS SEALS, CONTROL, OPERATION, ENERGY STORAGE, OUTPUT, AMMUNITION, CLOCKS, SIGNALS, LOGIC, NETWORKS, MICROPROCESSORS, ELECTRONICS, LOGIC CIRCUITS, DRIVES(ELECTRONICS)

Subject Categories : Ammunition and Explosives

Distribution Statement : APPROVED FOR PUBLIC RELEASE