Electro-pyrotechnic initiator with three electrical connections

Details Electro-pyrotechnic initiator with three electrical connections Electro-pyrotechnic initiator with three electrical connections

1998-12-22

2000-12-05

Jordon, Charles T.

Ammunition and explosives

Igniting devices and systems

Electrical primer or ignitor

1022025, 102200, F42B 3198, F42D 145

Patent

active

061551716

ABSTRACT:
The initiator (1) has a one-piece overmoulding (2) covering three pins (3, 4, 5) which constitute the three electrical connections of the said initiator (1). Two igniter heads (16, 17), each containing a heating resistive element, are fixed into the overmoulding (2) in such a way that, on the one hand, one of the three pins is common to the two heating resistive elements and, on the other hand, each of the other two pins (4 and 5) is connected to just one of the two heating resistive elements.
This electro-pyrotechnic initiator makes it possible to measure, in a mode of pyrotechnic non-activation, the resistance of each of the two heating resistive elements by successively passing electric test currents generated by an electronic control unit.

REFERENCES:
patent: 2386211 (1945-10-01), Grant, Jr.
patent: 3426682 (1969-02-01), Corren et al.
patent: 5334025 (1994-08-01), Fohl
patent: 5544585 (1996-08-01), Duguet
patent: 6070531 (2000-06-01), Hansen et al.

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