Accession Number : ADD007929

Title :   Squib Design.

Descriptive Note : Patent,


Personal Author(s) : Betts,Robert E

Report Date : 24 Jun 1980

Pagination or Media Count : 5

Abstract : The electrically initiated squib of this invention is comprised of a plug member with a pair of spaced apart electrical leads extending through the plug member into a holder member for containing a predetermined quantity of an easily-ignitable composition. A bridgewire that is constructed of a bimetallic composite (Pyrofuze) selected from palladium and aluminum, platinum and aluminum, and ruthenium-palladium alloy and aluminum is secured between the electrical lead ends that terminate in the holder member of the squib. The holder member is loaded with a loose, easily-ignitable composition which is a finely-ground and intimate mixture of a pyrotechnic which is a composition selected from the group consisting of 45% by weight zirconium and 55% by weight potassium perchlorate, 20% by weight boron and 80% by weight potassium nitrate, 45% by weight aluminum flake (17 to 44 microns) and 55% by weight potassium perchlorate (6 to 17 microns), and lead azide or lead styphnate, or a single-base, a double-base, or composite propellant composition in a powder or pellet form. (Author)

Descriptors :   *Patents, *Electric igniters, *Explosives initiators, Inventions, Exploding wires, Pyrotechnics, Composite materials, Palladium, Platinum, Aluminum, Ruthenium alloys, Palladium alloys, Propellants

Subject Categories : Pyrotechnics

Distribution Statement : APPROVED FOR PUBLIC RELEASE