Patent ID: 8172159
Filing Date: 2012-05-08
Classification: B08B,B60S,F04B,Y10T

Abstract:
1. Moving electric field windshield wiper apparatus, comprising: first, second, third, and fourth parallel electrodes disposed beneath a windshield outer surface in a direction substantially parallel to a windshield longitudinal axis; connecting structure configured to supply DC voltage to said first, second, third, and fourth parallel electrodes; and processing structure, coupled to said connecting structure, and configured to (i) form a cylindrical electric field substantially parallel to the windshield longitudinal axis and outside the windshield outer surface, by causing the first electrode to be supplied with positive DC voltage, causing the second electrode to be neutral, and causing the third electrode to be supplied with negative DC voltage, said cylindrical electric field being configured to entrain water, and (ii) move the formed cylindrical electric field in a first direction substantially perpendicular to said electrodes by causing the second electrode to be supplied with positive DC voltage, causing the third electrode to be neutral, and causing the fourth electrode to be supplied with negative DC voltage.