Patent ID: 7891042

Claim:
A wiper system for wiping a surface, comprising: a wiper comprising: a wiper motor; a wiper arm connected to said wiper motor, said wiper arm having a fixed arm portion and a pivotal arm portion; and a wiper blade connected to said pivotal arm portion in wiping relation with respect to the surface; a debris removal apparatus comprising an actuator actable between a deployed state and a retracted state, wherein when said actuator is actuated to said deployed state, said actuator causes said pivotal arm portion to be pivoted such that said wiper blade is separated from the surface; and an electronic control circuit interfaced with said actuator and said wiper motor, said electronic control circuit sensing a position of said wiper arm in relation to said actuator, said electronic control circuit providing location of said wiper arm vertically above said actuator in response to the sensed position of said wiper arm and prior to actuation of said actuator, and further providing the actuation of said actuator only when said wiper arm is located vertically above said actuator.