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Pression sector windscreen-wiper blade for motor vehicles

  • US 3,969,784 A
  • Filed: 01/30/1975
  • Issued: 07/20/1976
  • Est. Priority Date: 01/30/1974
  • Status: Expired due to Term
First Claim
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1. In a windshield wiper blade assembly having a primary bridge member, a secondary bridge member pivotally mounted on each end of said primary bridge member and a flexible wiper member engaging each of said secondary bridge members at a plurality of spaced zones, the improvement comprising:

  • said primary bridge member being substantially rigid;

    each of said secondary bridge members being of a unitary single structure and being resiliently bendable in a plane containing all said bridge members;

    means fixed on said secondary bridge members defining at least three of said pressure zones longitudinally spaced along each of said secondary bridge members; and

    said pressure zones of each of said secondary bridge members, when said bridge members are unstressed and at rest, being relatively arranged to each other to cause said wiper member to define a curve concave on the side thereof facing away from said bridge member.

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