Control means for selective continuous and intermittent operation of electric windshield wipers

Claim 1

Control apparatus for electrical windshield wipers comprising: drive motor means coupled to said windshield wipers for establishing windshield wiping stroke action, said motor means including an electrical braking circuit; a resistor; switching circuit means for coupling said resistor into said electric braking circuit at prescribed intervals of windshield wiping cycles to terminate said wiping stroke action; selective means for operatively connecting said drive motor means to said wipers to selectively effect continuous or intermittent windshield wiping stroke action; said switching circuit means being coupled to insert said resistor into said electric braking circuit when both said continuous and intermittent wiping actions are to be terminated; said switching circuit means excluding said resistor from said electric braking circuit during a wiping stroke of said electric windshield wiper and inserting said resistor in said electric braking circuit at the end of each wiping stroke cycle; a thermal cutout switch having a heating winding and a single blade of bimetallic material cooperating with said drive motor means to establish said intermittent windshield wiping stroke action; said switching circuit means inserting said resistor in parallel with said heating winding at the end of each wiping stroke cycle.