Fabric light control window covering
US5394922A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 13, 1992 |
| Grant date | Mar 7, 1995 |
| Priority date | — |
| Expiry date | Apr 13, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S160/07
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A window covering includes at least one piece of sheer material and a spaced but parallel support system in the form of a second sheet of sheer material, strips of similar material or strings, with a plurality of spaced flexible vanes extending therebetween. The vanes are attached to at least the sheer sheet of material by an adhesive line that penetrates the sheer material so as to protrude through an opposite side thereof and encapsulate the fibers of the sheer material. The surface of the adhesive on the opposite side of the sheer material from the vane is roughened to create a dull appearance. Strips of fabric material which can be used as vanes are also disclosed as being formable from elongated strips of material which are lengthwise tensioned prior to applying a bonding composition to the material so as to render the strip of material more stiff in its lengthwise direction than in a cross direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.