Patent ID: 7272867
Filing Date: 2007-09-25
Classification: B60S

Abstract:
1. A drive arm for a windshield wiper system comprising: a tubular member having a preselected cross-section and a curvature extending laterally from a longitudinal axis; said tubular member defining a wiper axis for connection of a wiper thereto and also defining a motor axis for connection of a drive motor thereto; said tubular member comprising a first portion defining a first cross-sectional shape and a second portion defining a second cross-sectional shape, wherein said first cross-sectional shape is generally crescent shaped and said second cross-sectional shape is non-crescent shaped; and said tubular member generally bending about said longitudinal axis and changing its cross-sectional shape when a bending force caused by an obstruction on a windshield is applied to the drive arm that causes said generally crescent-shaped first portion to become generally flatter.