Accession Number : ADD008168

Title :   Sealed Pyrotechnic Delay.

Descriptive Note : Patent,


Personal Author(s) : Rucker,Klaus G

Report Date : 05 Aug 1980

Pagination or Media Count : 8

Abstract : Disclosed is an improved underwater half-second pyrotechnic delay device having an elongated tubular housing with a pair of holes for respectively threading suitable detonating cords through each end thereof. In operational burning series within said tubular housing are a plurality of lead sheathed protected explosives, a resilient pressure attenuating disc, a metallic capsule containing a calibrated delayed burning composition of 2/98B-Pb3O4 having such geometrical configuration as to effect burning therealong for one-half second with considerable accurate, and another series of lead sheath protected explosives, a base charge, an explosive cord, and an end plug. An appropriate number of crimps are made along said tubular housing for holding the aforesaid elements in their proper places therein. Seals are employed at each end of said housing to make it water-tight. (Author)

Descriptors :   *Patents, *Pyrotechnics, *Detonating cord, *Delay circuits, *Delay elements(Explosive), Explosives, Cordage, Combustion, Sealed systems, Plugs, Attenuation, Inventions, Disks, Pressure, Sequences

Subject Categories : Pyrotechnics

Distribution Statement : APPROVED FOR PUBLIC RELEASE