Electronic switch means for flashing electrical lamps

Claim 1

IN COMBINATION, A PAIR OF CONDUCTORS ADAPTED FOR CONNECTION TO A SUITABLE SOURCE OF DIRECT CURRENT POWER, FIRST AND SECOND DIRECT CURRENT PATHS CONNECTED BETWEEN SAID PAIR OF CONDUCTORS, A PAIR OF UNIDIRECTIONALLY CONDUCTIVE DEVICES EACH HAVING AN ANODE, A CATHODE AND A CONTROL ELECTRODE AND HAVING A CONDUCTIVE AND A NON-CONDUCTIVE STATE, EACH CURRENT PATH COMPRISING A LOAD IMPEDANCE IN SERIES WITH THE ANODE-CATHODE CIRCUIT OF ONE OF SAID DEVICES, A PAIR OF CONDUCTORS FOR RECEIVING A TRAIN OF INPUT PULSES, ONE OF SAID PULSE RECEIVING CONDUCTORS BEING DIRECTLY CONNECTED TO THE CATHODE OF EACH OF SAID DEVICES, A DIODE DIRECTLY CONNECTED TO THE CONTROL ELECTRODE OF EACH OF SAID DEVICES, THE OTHER OF SAID PULSE RECEIVING CONDUCTORS BEING COUPLED TO EACH OF SAID CONTROL ELECTRODES THROUGH THE DIODE ASSOCIATED THEREWITH, THE ANODE OF ONE OF SAID DEVICES BEING COUPLED TO THE CONTROL ELECTRODE OF THE OTHER OF SAID DEVICES THROUGH A RESISTOR AND DIODE CONNECTED IN SERIES WITH EACH OTHER, AND A CAPACITOR DIRECTLY COUPLED BETWEEN THE ANODES OF EACH OF SAID DEVICES FOR COOPERATING WITH A TRAIN OF INPUT PULSES APPLIED TO SAID PULSE RECEIVING CONDUCTORS TO CAUSE EACH OF SAID DEVICES TO BECOME ALTERNATELY CONDUCTIVE AND THEN NON-CONDUCTIVE UPON THE APPLICATION OF INPUT PULSES, EACH PATH BEING CONDUCTIVE WHEN THE OTHER PATH IS NON-CONDUCTIVE AND NON-CONDUCTIVE WHILE THE OTHER PATH IS CONDUCTIVE.