Controlled inductive coupling device

Details Controlled inductive coupling device Controlled inductive coupling device

1985-03-04

1987-08-11

Jordan, Charles T.

Ammunition and explosives

Igniting devices and systems

Accidental fuse ignition prevention means

102200, 323330, F42C 1540, F42B 318, F42D 500

Patent

active

046853952

ABSTRACT:
An inductive coupling device is provided wherein the transmission of energy through the device is controlled by the application of a steady magnetic field within the magnetically permeable core of the device, transmission being inhibited at high magnetic field intensity and restored when the magnetic field intensity is reduced to a low value. The device is especially advantageous for the safe coupling of ignition elements, such as blasting detonators, to an a.c. firing energy source.

REFERENCES:
patent: 2854591 (1958-09-01), Immel et al.
patent: 2933653 (1960-04-01), Carter
patent: 3123002 (1964-03-01), Spool
patent: 3671810 (1972-06-01), Barnes et al.
patent: 4297947 (1981-11-01), Jones et al.

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