Electrically actuable ignition assembly

Details Electrically actuable ignition assembly Electrically actuable ignition assembly

1982-09-07

1984-05-29

Griffin, Donald A.

Electricity: electrical systems and devices

Igniting systems

For explosive devices

339 98, F42C 1100, H01R 908

Patent

active

044518676

ABSTRACT:
An electrically actuable ignition assembly comprising an electric ignition element having insulated electrical leading wires connected by means of conducting metal contact elements to the ends of a secondary winding of insulated wire on a transformer ring core. The transformer core and contacts are preferably encased in a synthetic plastics case. The assembly is for use in blasting operations in which multi-shot rounds are fired from an a.c. supply by electromagnetic coupling of the supply with the secondary winding by means of a single primary wire threaded through the ring cores of a plurality of assemblies. The use of the metal contact elements eliminates the previously used soldered joints between the ignition element leading wires and the transformer secondary winding.

REFERENCES:
patent: 2933653 (1960-04-01), Carter
patent: 3388370 (1968-06-01), Elm
patent: 3745228 (1973-07-01), Vogt
patent: 4099822 (1978-07-01), Carlisle et al.
patent: 4297947 (1981-11-01), Jones et al.

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