Ammunition and explosives – Igniting devices and systems – Ignition or detonation circuit
Patent
1977-03-28
1979-03-27
Jordan, Charles T.
Ammunition and explosives
Igniting devices and systems
Ignition or detonation circuit
102206, F42C 1106
Patent
active
041459709
ABSTRACT:
An electric detonator cap has a casing, which accommodates an explosive detonator charge, an electrically ignitable means for firing the detonator charge, a chargeable and dischargeable electric energy source for igniting the firing means, and an electric circuit arrangement, including a controllable switch means connected between the energy source and the firing means, an electric delay circuit, and a decoder. The energy source is connectable via connecting wires extending out from the casing, to an electric current source for charging the energy source, and the decoder is electrically connectable to said connecting wires and is adapted upon receipt of a specific electric firing command signal supplied through said connecting wires to actuate the delay circuit in a manner to close the switch means after a predetermined delay time.
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Hedberg John B. G.
Westerlund Nils A. L.
Jordan Charles T.
Tri Electronics AB
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