Molded windshield wiper blade

• US 3,317,945 A
• Filed: 09/17/1965
• Issued: 05/09/1967
• Est. Priority Date: 09/17/1965
• Status: Expired due to Term

• Current Assignee: Ludwig, Arthur L.
• Original Assignee: Ludwig, Arthur L.
• Inventors: Ludwig, Arthur L.
• Application Number:
  US04/488,224
• Time in Patent Office: 599 Days
• US Class Current: 15/250.48
• CPC Class Codes: B60S 1/38 Wiper blades provided with liquid spreading means B60S1/524; provided with gas spreading means B60S1/546
• CPC Class Codes: B60S 1/3806 Means, or measures taken, for influencing the aerodynamic quality of the wiper blades
• CPC Class Codes: B60S 1/3808 Spoiler integral with the squeegee
• CPC Class Codes: B60S 1/3872 without connector, e.g. connection to wiper arm via squeegee or vertebra
• CPC Class Codes: B60S 1/3877 embedded in the squeegee
• CPC Class Codes: B60S 1/4003 Multi-purpose connections for two or more kinds of arm ends
• CPC Class Codes: B60S 2001/382 the backing strip being an essentially planar reinforcing strip, e.g. vertebra
• CPC Class Codes: B60S 2001/3836 characterised by cross-sectional shape

Claims

1. A MOLDED SELF-CLEANING WINDSHIELD WIPER BLADE ADAPTED FOR USE UNDER WINTER DRIVING CONDITIONS COMPRISING A UNITARY ELONGATED AND LONGITUDINALLY CURVED BODY FORMED FROM ELASTOMERIC MATERIAL, SAID BODY, BEING TAPERED LONGITUDINALLY IN ITS PLANE OF CURVATURE FROM ITS CENTER TOWARD ITS ENDS AND HAVING A SMOOTHLY CURVED CONCAVE EDGE CONSTITUTING A WIPING EDGE AND A THIN LONGITUDINALLY CURVED CONVEX EDGE OPPOSITE SAID CONCAVE WIPING EDGE HAVING A CURVATURE GREATER THAN THAT OF THE WIPING EDGE.