Means for the deactivation of electric blasting caps

Details Means for the deactivation of electric blasting caps Means for the deactivation of electric blasting caps

1981-07-14

1985-07-09

Lechert, Jr., Stephen J.

Ammunition and explosives

Igniting devices and systems

Electrical primer or ignitor

1022025, C06C 700

Patent

active

045274800

ABSTRACT:
An electric blasting cap designed to be permanently disabled by the application of an external magnetic field. The cap contains a magnetic reed switch which creates an open circuit or a short circuit to prevent current from reaching the bridge wire. One embodiment of the switch is operated by a magnetizing field, the other is operated by a demagnetizing field.

REFERENCES:
patent: 3344744 (1967-10-01), Bankston, Jr.
patent: 3585933 (1971-07-01), Kos
patent: 3658009 (1972-04-01), Allen
patent: 3976012 (1976-08-01), Nordgren

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