Electricity: electrical systems and devices – Igniting systems – For explosive devices
Patent
1985-04-05
1987-03-17
Kozma, Thomas J.
Electricity: electrical systems and devices
Igniting systems
For explosive devices
1022025, 102472, 336200, 336DIG2, F23Q 700, H01F 500
Patent
active
046512543
ABSTRACT:
A secondary coil is provided for use in inductive igniters for the igniting of propellant charge powder. In these igniters, two coil systems cooperate with each other in accordance with the transformer system, wherein the secondary coil is to be as small as possible and is to form a compact unit with the igniter. This is accomplished by arranging the windings of the secondary coil in the form of flat sandwich coils on a support material in an insulated fashion so that upon folding of the support material, the individual flat coils are placed in mutual opposition so that they form a cylinder coil. Furthermore, these flat coils are connected with each other by way of their outermost and innermost windings, the transition from the outermost windings being located at the crease and the innermost windings being joined together so that the flat coils are disposed almost in congruence on the front side as well as on the rear side, and the transition of the innermost coils being effected by a metallized path extending through the carrier material.
REFERENCES:
patent: 2014524 (1935-09-01), Franz
patent: 2911605 (1959-11-01), Wales, Jr.
patent: 3002260 (1961-10-01), Shortt et al.
patent: 3484731 (1969-12-01), Rich, III
patent: 3528172 (1970-09-01), Smulkowski
patent: 3812442 (1974-05-01), Muckelroy
patent: 4369557 (1983-01-01), Vandebult
Brede Uwe
Kern Heinz
Kordel Gerhard
Dynamit Nobel Aktiengesellschaft
Kozma Thomas J.
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