Ferrite core coupled slapper detonator apparatus and method

Ammunition and explosives – Igniting devices and systems – Electrical primer or ignitor

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1022027, 102204, F42B 312, F42C 1912

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active

048524930

ABSTRACT:
Method and apparatus are provided for coupling a temporally short electric power pulse from a thick flat-conductor power cable into a thin flat-conductor slapper detonator circuit. A first planar and generally circular loop is formed from an end portion of the power cable. A second planar and generally circular loop, of similar diameter, is formed from all or part of the slapper detonator circuit. The two loops are placed together, within a ferrite housing that provides a ferrite path that magnetically couples the two loops. Slapper detonator parts may be incorporated within the ferrite housing. The ferrite housing may be made vacuum and water-tight, with the addition of a hermetic ceramic seal, and provided with an enclosure for protecting the power cable and parts related thereto.

REFERENCES:
patent: 3978791 (1976-09-01), Lemley et al.
patent: 4144814 (1979-03-01), Day et al.
patent: 4297947 (1981-11-01), Jones et al.
patent: 4312271 (1982-01-01), Day et al.
patent: 4471697 (1984-09-01), McCormick et al.
patent: 4601243 (1986-07-01), Ueda et al.
patent: 4602565 (1986-07-01), MacDonald et al.
Stroud, John R.; "A New Kind of Detonator--The Slapper", UCRL-77639; Feb. 1976.

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