Timing network

Claim 1

TIME DELAY APPARATUS ADAPTED TO PROVIDE AN OUTPUT A PREDETERMINED TIME AFTER THE APPLICATION OF A CONTINUOUS INPUT SIGNAL THERETO, AND ADAPTED CONTINUOUSLY TO PROVIDE SAID OUTPUT SO LONG AS THE INPUT SIGNAL REMAINS, WHICH COMPRISES, A PAIR OF INPUT TERMINALS ADAPTED TO HAVE THE INPUT SIGNAL APPLIED THERETO, VOLTAGE REGULATING MEANS CONNECT ACROSS SAID TERMINALS AND INCLUDING A BREAKDOWN DIODE, AN RC CIRCUIT CONNECTED IN PARALLEL WITH SAID BREAKDOWN DIODE AND INCLUDING A CAPACITOR HAVING DISCHARGE MEANS NORMALLY SHUNTING THE SAID CAPACITOR, MEANS RENDERING INOPERATIVE SAID DISCHARGE MEANS WHEN AN INPUT SIGNAL IS APPLIED TO SAID APPARATUS, A CONTROLLED TRANSISTOR HAVING A CONTROL ELECTRODE CONNECTED TO ONE SIDE OF THE CAPACITOR WHEREBY THE CHARGE OF SAID SIDE WILL BIAS SAID CONTROLLED TRANSISTOR AND CAUSE SAME TO CONDUCT AT SOME PREDETERMINED CONDITION OF CHARGE, A CONTROLLED RECTIFIER HAVING A GATE ELECTRODE CONNECTED TO SAID CONTROLLED TRANSISTOR AND INCLUDING AN ANODE-CATHODE CIRCUIT CONNECTED BETWEEN SAID TERMINALS, SAND AN OUTPUT DEVICE CONNECTED IN THE ANODECATHODE CIRCUIT FOR PROVIDING SAID OUTPUT WHEN SAID CONTROLLED TRANSISTOR CONDUCTS, AND SO LONG AS SAID INPUT SIGNAL IS APPLIED TO SAID INPUT TERMINALS, SAID CONTROLLED TRANSISTOR COMPRISING A UNIJUNCTION TRANSISTOR HAVING ITS BASE TERMINALS CONNECTED IN PARALLEL WITH SAID RC CIRCUIT AND HAVING MEANS ESTABLISHING A PREDETERMINED GRADIENT OF CURRENT FLOW IN SAID BASE.