Circuit controlling flow of current

Claim 1

A BOOST CIRCUIT FOR PROVIDING AN ENERGIZING CURRENT, COMPRISING AT LEAST ONE ACTUATOR, AN ENERGIZING CURRENT PATH INCLUDING FIRST SWITCHING MEANS AND IMPEDANCE MEANS COUPLED IN SERIES WITH SAID ACTUATOR, MEANS FOR DERIVING AN INPUT SIGNAL ADAPTED TO RENDER SAID FIRST SWITCHING MEANS CONDUCTIVE, NON-REACTIVE SECOND SWITCHING MEANS COUPLED IN SHUNT WITH AT LEAST A PORTION OF SAID IMPEDANCE MEANS, AND MEANS RESPONSIVE TO THE INITIATION OF SAID INPUT SIGNAL TO RENDER SAID SECOND SWITHCHING MEANS CONDUCTIVE DURING A PREDETERMINE TIME INTERVAL, SAID CURRENT PATH HAVING A RELATIVELY LOW CONSTANT IMPEDANCE BETWEEN THE INITIATION OF SAID INPUT SIGNAL AND THE END OF SAID INTERVAL AND A RELATIVELY HIGH CONSTANT IMPEDANCE THEREAFTER UNTIL THE TERMINATION OF SAID INPUT SIGNAL.