US Patent 8715421 Wiper with scrubber assembly that is raised and lowered

A windshield wiper includes a wiper assembly, a scrubber assembly, and an engaging assembly. The wiper assembly includes a wiper support structure and a wiper blade attached to the wiper support structure. The scrubber assembly includes a scrubber support structure, an elongated scrubber element and a motor. The scrubber element is movably attached to the scrubber support structure and extends between a first end and a spaced apart second end along a central longitudinal axis. The motor is mounted to the scrubber support structure and is engaged with the scrubber element to reciprocally move the scrubber element along the central longitudinal axis. The engaging assembly is coupled with the wiper assembly and the scrubber assembly and is configured to raise and lower the scrubber assembly with respect to the wiper assembly. Also, an automated method of using a windshield wiper.