F - Mech Eng,Light,Heat,Weapons – 42 – C
Patent
F - Mech Eng,Light,Heat,Weapons
42
C
342/19.7
F42C 11/06 (2006.01) F42C 19/12 (2006.01) F42D 1/06 (2006.01) H03K 17/296 (2006.01)
Patent
CA 1161530
ABSTRACT A system for sequentially activating a series of detonators, comprising a series of activating modules that are connected in parallel to a clock pulse supply lead from a control unit which supplies a series of clock pulses which determine the intershot firing interval. The modules are also connected in series with one another such that each module sequentially supplies a gating signal to the next module in the series. The module whose gate has been opened is activated by the next clock pulse. The modules have time delays so that the next module is only gated open a predetermined time interval after the clock pulse has arrived at any module, so that the next module is only gated after that clock pulse has ended and before the arrival of the next clock pulse. Each module also has a feedback loop to close its own gate once it has been activated by a clock pulse.
369212
Aeci Limited
Ballantyne Donald G.
LandOfFree
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