PERCUSSION DETONATOR Russian patent published in 2014 - IPC F42C19/10 

FIELD: blasting works.

SUBSTANCE: proposed device comprises case, hammer, product from high-explosive and cup. Percussion cup is equipped with cylindrical cartridge with central bore at bottom centre and taper expansion at top part accommodating said hammer. Hammer bottom is shaped to truncated cone. Percussion detonator has case cover. Cover top part has recess shaped to truncated cone with bottom in contact with said hammer. Cover bottom part lower edges are turned inward to tightly fit in circular ledge at case outer side. Cup arranged at case bottom opening accommodates two halves of aforesaid high explosive. Upper part of high explosive lower high-density half has the recess shaped to truncated cone while lo-density half fills the case inner volume between high explosive lower half upper part and circle. Said circle is pressed against cartridge bottom outer side. Batches of hexogen and quartz sand or broken glass, mixed partially or completely, are arranged in through opening on cartridge bottom side. Circular groove with resilient ring seal is fitted on detonator case sidewall outer side.

EFFECT: higher reliability of operation.

2 cl, 1 dwg