Control system for controlling the flow of fluids

Claim 1

A CONTROL SYSTEM FOR CONTROLLING THE FLOW OF FLUIDS IN THE FILLING OR EMPTYING OF A STORAGE TANK COMPRISING AN ELECTRON VALVE WITH ASSOCIATED INPUT AND OUTPUT CIRCUITS FOR CONTINUOUSLY PASSING AN ALTERNATING CURRENT SIGNAL FROM THE FORMER TO THE LATTER OF SAID CIRCUITS, A MEANS FOR GENERATING A FREQUENCY STABLE ALTERNATING CURRENT SIGNAL CONNECTED TO THE INPUT CIRCUIT, A RESONANT MEANS CONNECTED IN SERIES WITH THE INPUT CIRCUIT PROVIDING AN IMPEDANCE FOR BIASING SAID VALVE TO REGULATE THE AMPLITUDE OF SAID SIGNAL IN THE OUTPUT CIRCUIT, A CAPACITANCE-TYPE PROBE POSITIONED AT THE STORAGE TANK AND OPERATIVELY CONNECTED TO THE RESONANT MEANS FOR PRODUCING VARIATIONS IN THE IMPEDANCE OF SAID RESONANT MEANS IN RESPONSE TO FLUID IMPRESSED AGAINST SAID PROBE, A UTILIZATION DEVICE, SIGNAL TRANSFERRING MEANS TO COUPLE THE UTILIZATION DEVICE TO THE OUTPUT CIRCUIT OF THE ELECTRON VALVE, AND SAID DEVICE INCLUDING MEANS TO CONTROL THE FUNCTIONING OF FLUID TRANSFER MEMBERS ASSOCIATED WITH THE TANK CONTAINING SAID PROBE IN RESPONSE TO VARIATIONS IN THE AMPLITUDE OF SAID SIGNAL IN THE OUTPUT CIRCUIT OF SAID VALVE.