Device for firing an electric detonator

Details Device for firing an electric detonator Device for firing an electric detonator

1976-08-26

1977-07-26

Pendegrass, Verlin R.

Ammunition and explosives

Igniting devices and systems

102 18R, 102 702GA, F42D 104

Patent

active

040375382

ABSTRACT:
A device for firing an electric detonator which comprises a pressure deformable sealed waterproof housing containing an electric energy source of ignition of a detonator and means responsive to the deformation of the housing for actuating the energy source. The housing preferably comprises a bellows element and the energy source is preferably a piezoelectric element. The device is useful for multiple shot blasting wherein one explosive charge is initiated by the shock wave from a previously exploded charge.

REFERENCES:
patent: 3005974 (1961-10-01), Northrup et al.
patent: 3293676 (1966-12-01), Link
patent: 3780654 (1973-12-01), Shimizu et al.

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