Electrical sequential firing system

Details Electrical sequential firing system Electrical sequential firing system

1987-07-30

1988-08-02

Jordan, Charles T.

Ammunition and explosives

Igniting devices and systems

102217, F42D 104

Patent

active

047607912

ABSTRACT:
This invention provides modules and a system for sequentially activating a series of detonators. The modules and the system rely on a transistor in which the base-collector junction is caused to change state by a current pulse of suitable magnitude so that it presents a low resistance. Similarly, the base-emitter junction is also caused to change state to present a low resistance path in both directions. Such transistors are utilized to steer signals through a module in which they are used to activate a detonator associated with that module and then to steer a further signal to a next module in the series.

REFERENCES:
patent: 3262388 (1966-07-01), McCarty
patent: 4099467 (1978-07-01), MacKellar et al.
patent: 4314507 (1982-02-01), Seligmann
patent: 4489655 (1984-12-01), Molnar
patent: 4610203 (1986-09-01), Bock

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