BATTERY CHARGER UTILIZING BIMETALLIC SWITCH FOR AUTOMATIC SELECTION OF 6- OR 12-VOLT CHARGING
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Abstract
A BATTERY CHARGER FOR CHARGING 6- AND 12-VOLT BATTERIES INCLUDES A TWO-POSITION CHARGING VOLTAGE SELECTION SWITCH AND A DEVICE WHICH, IN RESPONSE TO THE CHARGING CURRENT, PRODUCES EITHER A THERMAL OR AN ELECTROMAGNETIC EFFECT WHICH, IF THE CHARGING CURRENT EXCEEDS A PARTICULAR VALUE ABOVE THE NORMAL VALUE, CAUSES THE SWITCH TO SWITCH TO THE SIX-VOLT POSITION. THE CONSTRUCTION OR ARRANGEMENT OF THE SWITCH CAUSES IT TO SUBSEQUENTLY REMAIN IN THIS POSITION. VOLTAGE SELECTION MAY THEREFORE BE ACHIEVED AUTOMATICALLY IN DEPENDENCE ON THE VOLTAGE OF THE BATTERY UNDER CHARGE.
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