Fabric light control window covering

  • US 6,688,369 B2
  • Filed: 07/25/2001
  • Issued: 02/10/2004
  • Est. Priority Date: 10/24/1990
  • Status: Expired due to Fees
First Claim
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1. A window covering comprising a first side comprised of a relatively translucent material, a second side comprised of a relatively translucent material and disposed substantially parallel to the first side, and a plurality of vanes extending between the sides, wherein the vanes each have edge portions and a portion extending between said edge portions, said vanes are angularly controllable and change shape by relative movement of the first and second sides between a first closed position whereby the vanes are substantially planar and extend substantially parallel to the first and second sides, and a second open position whereby the portion of the vanes extending between said edge portions have smooth curving portions and are of generally s-shaped cross-sectional configuration.

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