Remote blasting system for effecting multiple-step explosion and

Details Remote blasting system for effecting multiple-step explosion and Remote blasting system for effecting multiple-step explosion and

1984-11-14

1986-10-07

Jordan, Charles T.

Ammunition and explosives

Igniting devices and systems

Ignition or detonation circuit

102200, F42C 1100

Patent

active

046152687

ABSTRACT:
A remote blasting system for exploding a number of explosives in a multiple-step manner including an oscillating unit for radiating an electromagnetic wave due to which A.C. currents are induced in receiving units some of which are directly connected to detonators and the remaining receiving units being connected to detonators via at least one switching unit which includes a switch and an actuating member for driving the switch. At the end of first excitation, the switch is closed and at the end of second excitation the detonator is blasted via the closed switch.

REFERENCES:
patent: 2725822 (1955-12-01), Janelid
patent: 3170399 (1965-02-01), Hinman, Jr.
patent: 3834310 (1974-09-01), Ueda et al.
patent: 4099467 (1978-07-01), MacKellar et al.
patent: 4145970 (1979-03-01), Hedberg et al.
patent: 4489655 (1984-12-01), Molnar

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