EXPLOSIVE LOGIC UNIT Russian patent published in 2008 - IPC F42B3/10 F42D1/04 

FIELD: shooting operations.

SUBSTANCE: invention can be used in explosive systems with high safety demands for protection of blasting detonation chains during occasional or unauthorized actions without shock initiation in a blasting chain. The device contains a detonation chain, a blocking chain, a chain of blocking removal, explosive chains branch point and explosion valves. The first valve is located in a blocking chain between the branch point connected to the first input of an explosion logic unit, and an exit of an explosive logic unit. The second explosion valve is located in a detonation chain between the branch point and operating input of the first explosion valve; thereat the first explosion valve is connected by a blocking removal chain to the second input of an explosive logic unit. The blocking chain and blocking removal chain are executed in the form of a detonating cord with a core from the plastic explosive, encased in a metal cover, and external diameter of the metal cover is equal to the two diameters of a core cord.

EFFECT: increase of charge application safety in detonation chains.

1 dwg