Research/Patents/US 5218574
US 5218574

ELECTRICAL FIRING CIRCUIT

Assignee

Filed

Oct 12, 1970

Granted

Jun 8, 1993

Location

SILVER SPRING MD US

Abstract

A firing circuit for use in booby traps providing four different operatio modes. A capacitor stores energy which is discharged through an electrical detonator upon the activation of a silicon controlled rectifier. The silicon controlled rectifier is activated by transistor circuitry in the event of supply voltage depletion or the physical parting of a break-wire by a target. It is also activated by a delay-timer for timed self-destruction and by circuitry responsive to vibrations in the firing circuit generated by the target.

Source: Google Patents

35 USC §181 Secrecy Order

Imposed

Sep 1, 1982

Rescinded

Feb 18, 1992

Duration

9 years, 5 months

Inventor

  • 1FRANK PEREGRIM
Back to patent indexSource: USPTO 35 USC §181 secrecy order records