Signal tube operated switches

Details Signal tube operated switches Signal tube operated switches

1992-02-24

1993-10-12

Scott, J. R.

Electricity: circuit makers and breakers

Fluid pressure

Piston

200 83R, H01H 3524

Patent

active

052527964

ABSTRACT:
A signal tube operated switch includes a contact arrangement which is moved from a first, open circuit position to a second, closed circuit position by a shock wave or pressure pulse initiated by a detonator. The switch is preferably an electric switch and in at least one embodiment includes a movable conductive piston consisting of at least one portion in continuous conductive engagement with the conductive signal tube. The other portion of the contact arrangement causes a change in the circuit after the contact arrangement is relocated to the second circuit closing position. Accordingly, the overall working efficiency of delay detonators is improved.

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