Windshield wiper

• US 3,132,367 A
• Filed: 04/24/1959
• Issued: 05/12/1964
• Est. Priority Date: 04/24/1959
• Status: Expired due to Term

• Current Assignee: Ralph H. Wise
• Original Assignee: Ralph H. Wise
• Inventors: Wise, Ralph H.
• Application Number:
  US03/808,668
• Time in Patent Office: 1,845 Days
• US Class Current: 15/250.43
• 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 1/40 Connections between blades and arms
• CPC Class Codes: B60S 1/4064 the channel-shaped end being provided with protrusions on, or holes in, the side walls to create a pivot
• 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. IN A WIPER FOR A CONVEX SURFACE, AN ELONGATED RESILIENTLY DEFORMABLE WIPING ELEMENT HAVING A WIPING EDGE, AND WITH LONGITUDINALLY EXTENDING SLOTS SPACED FROM SAID EDGE AND EXTENDING PARALLEL THERETO, A NON-EXTENSIBLE CARRIER STRIP FRICTIONALLY SEATED IN EACH SAID SLOTS AND PROJECTING BEYOND THE ENDS OF SAID ELEMENT, A MAIN CARRIER STRUCTURE OF ELONGATED CONFIGURATION AND HAVING END ELEMENTS PIVOTALLY SECURED TO THE ENDS OF SAID NON-EXTENSIBLE CARRIERS AND EFFECTIVE TO TENSION THE SAME, AND MEANS ON SAID END ELEMENTS ENGAGEABLE WITH SAID NON-EXTENSIBLE CARRIER TO PROVIDE LIMITED TORSIONAL TURNING OF SAID WIPING ELEMENT AS THE EDGE THEREOF IS MOVED ALONG SAID CONVEX SURFACE.