Circuit for controlling electromechanical load

Claim 1

A CIRCUIT FOR OPERATING A LOAD REQUIRING A FIRST POTENTIAL LEVEL FOR ACTUATION AND A SECOND POTENTIAL LEVEL FOR MAINTAINING SAID LOAD IN AN ACTUATED STATE, SAID CIRCUIT COMPRISING: A SOURCE OF ALTERNATING CURRENT VOLTAGE HAVING TWO TERMINALS; A FIRST SERIES CONNECTED DIODE AND CAPACITOR CONNECTED ACROSS SAID SOURCE; A SECOND SERIES CONNECTED DIODE AND CAPACITOR CONNECTED ACROSS SAID SOURCE, SAID DIODES BEING INTERCONNECTED AND POLED IN OPPOSITE DIRECTIONS AND CONNECTED TO ONE TERMINAL OF SAID SOURCE; SWITCH MEANS, HAVING FIRST AND SECOND POSITIONS; SAID CAPACITORS BEING INTERCONNECTED AT A COMMON POINT AND CONNECTED THROUGH SAID SWITCH MEANS TO THE OTHER TERMINAL OF SAID SOURCE, THEREBY PROVIDING A COMMON CURRENT FLOW PATH CONNECTED TO EACH OF SAID CAPACITORS ONLY WHEN SAID SWITCH MEANS IS IN SAID FIRST POSITION; A THIRD DIODE CONNECTED BETWEEN SAID SWITCH MEANS AND SAID FIRST CAPACITOR, SAID THIRD DIODE BEING POLED THE SAME AS SAID FIRST DIODE AND OPERABLE ONLY WHEN SAID SWITCH MEANS IS IN SAID SECOND POSITION, WHEREBY SAID CAPACITORS ARE CHARGED SEPARATELY WHEN SAID SWITCH MEANS IS IN SAID FIRST POSITION AND TOGETHER WHEN SAID SWITCH MEANS IS IN SAID SECOND POSITION.