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The invention relates to an Optical Detonator including a provision to accept a fiberoptic light guide cable 2 within a terminal socket 12 whereby an electromagnetic radiation signal passed down the fiberoptic light guide cable 2 activates a photo-conductor device 16 located within the hollow body p

The invention relates to an Optical Detonator including a provision to accept a fiberoptic light guide cable 2 within a terminal socket 12 whereby an electromagnetic radiation signal passed down the fiberoptic light guide cable 2 activates a photo-conductor device 16 located within the hollow body portion 3 of the detonator 1 to allow an adjacent primary battery device 20 as the electrical energizing source to pass an electric current through fusehead ⅞to fire the detonator.

대표청구항 ▼

A detonator comprising: an elongated hollow body portion of a detonator casing with a closed end encasing a contained quantity of chemical explosive material adjacent to said closed end; an electrical resistance element coated with a thermally ignitable pyrotechnic chemical material as a pyrotechnic

A detonator comprising: an elongated hollow body portion of a detonator casing with a closed end encasing a contained quantity of chemical explosive material adjacent to said closed end; an electrical resistance element coated with a thermally ignitable pyrotechnic chemical material as a pyrotechnic fusehead spaced from said quantity of chemical explosive material; a primary battery means contained adjacent to said electrical resistance element pyrotechnic fusehead; an electromagnetic radiation responsive switching means contained adjacent to said primary battery means wherein electrical circuit connections allow a conductive circuit to be formed to pass an electric current from the primary battery means through the electrical resistance element, controlled by the electromagnetic radiation responsive switching means in response to energization by a electromagnetic radiation signal from an external radiation source; a terminal socket means placed within a mouth at a proximal end of the elongated hollow body portion, to accept a terminal of a fiberoptic light guide cable; an isolating switch means incorporated in the primary battery means, said isolating switch means being separate and additional to said electromagnetic radiation responsive switching means.