Windshield wiper

• US 3,139,644 A
• Filed: 04/09/1962
• Issued: 07/07/1964
• Est. Priority Date: 04/09/1962
• Status: Expired due to Term

• Current Assignee: George O. Smith
• Original Assignee: George O. Smith
• Inventors: Smith, George O.
• Application Number:
  US04/186,236
• Time in Patent Office: 820 Days
• US Class Current: 15/250.3
• 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 2001/382 the backing strip being an essentially planar reinforcing strip, e.g. vertebra
• CPC Class Codes: B60S 2001/3824 the blade or squeegee pivoting about an axis parallel to blade longitudinal axis
• CPC Class Codes: B60S 2001/3837 with more than one wiping edge or lip

Claims

1. A WINDSHIELD WIPER ASSEMBLY THAT COMPRISES A RESILIENT FLEXIBLE ROLLER;

A FLEXIBLE SHAFT PASSING THROUGH THE LENGTH OF SAID ROLLER;

SAID ROLLER BEING ADAPTED THEREBY TO FREE ROTATION ABOUT SAID SHAFT;

AN ARCHED SPRING SUPPORT MEMBER;

THE TERMINAL ENDS OF SAID SUPPORT MEMBER BEING ADAPTED TO RECEIVE THE TERMINAL ENDS OF SAID FLEXIBLE SHAFT;

AN OSCILLATING ARM, ONE END OF WHICH IS CONNECTED TO SAID ARCHED SPRING SUPPORT MEMBER AT A POINT BETWEEN THE OPPOSITE ENDS THEREOF;

THE OPPOSED END OF SAID ARM BEING CONNECTED TO THE OUTER TERMINUS OF AN AXIS ABOUT WHICH SAID ARM IS ADAPTED TO OSCILLATE IN A PRESCRIBED ARC EXERTING SIMULTANEOUSLY A FIXED, INFLEXIBLE IMPRESSMENT TOWARD SAID ARCHED SPRING ELEMENT AND ROLLER;

THUS INDUCING A SPRING BIAS IN SAID ARCHED SPRING MEMBER WHEN THE ROLLER IS IN CONTACT WITH A WINDSHIELD SURFACE;

SAID AXIS BEING CONNECTED AT ITS INNER TERMINUS TO MEANS FOR EFFECTING THE