H - Electricity – 01 – F
Patent
H - Electricity
01
F
323/30, 342/47
H01F 21/06 (2006.01) F41A 19/63 (2006.01) F42C 19/12 (2006.01) H01F 21/08 (2006.01)
Patent
CA 1250018
ABSTRACT A Controlled Inductive Coupling Device 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.
477719
Ballantyne Donald G.
Imperial Chemical Industries Plc
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