Liquid rheostat with circulating electrolyte
OwnerMichel Bensadouninventor
Life of this patent
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Abstract
A rheostat of the kind that comprises a tank containing electrolyte and at least two electrodes, one electrode being connectable to an electric power supply and the other electrode being connectable to apparatus to be fed by the power supply. The electrodes define therebetween an electrolyte flow path and there is associated with the electrolyte flow path operational pumping apparatus providing for a controlled effective circulation of the electrolyte between the electrodes. The rheostat is particularly usable in conjunction with the starting of squirrel-cage motors.
Claims26
Liquid resistance rheostat comprising a tank containing electrolyte, a pair of spaced electrodes, one of said electrodes having means to be connected to an electrical power supply and the other of said electrodes having means to be connected to an apparatus to be supplied with electric power, electrolyte flow path means defining an electrolyte flow path and including an inlet for communicating with the electrolyte in said tank and an outlet, said electrodes being arranged in said electrolyte flow path means, the rheostat having a rest condition in which said electrodes are out of contact with the electrolyte, operational pumping means for pumping the electrolyte from said tank through said electrolyte flow path means at a predetermined high flow rate for bringing the electrolyte into contact with said electrodes and thereby the rheostat into its operative condition.
Dependencies are inferred from the claim text.