Maria C Gil

US Patent:

6484786, Nov 26, 2002

Filed:

Apr 14, 2000

Appl. No.:

09/549969

Inventors:

Bryan K. Ruggles - Salt Lake City UT
Maria R. Gil - East Greenwich RI
George G. Gil - East Greenwich RI
Warren Stephenson - West Greenwich RI
Julian Rokicki - Warwick RI

Assignee:

Newell Window Furnishings, Inc. - Freeport IL

International Classification:

E06B 906

US Classification:

160 8405, 1601211, 1601661 R

Abstract:

A light-control window covering includes a first sheet of sheer material, and a second sheet of sheer material spaced apart from the first sheer sheet of material. A plurality of vanes having a first face and a second face, a center region and a first and a second longitudinal margin, the first face of each vane being ultrasonically welded to the first and second sheets of sheer material along the respective first and second longitudinal margins. The vanes are welded to the first and second sheer sheets of material, while the first and second sheer materials are spaced apart and parallel to one another. The welded first and second sheets of sheer material and vanes are then shifted from a light-passing position to a light-blocking position and heat set.