Double sheet light control window covering with unique vanes
US5419385A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 29, 1993 |
| Grant date | May 30, 1995 |
| Priority date | — |
| Expiry date | Jul 29, 2013 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE06B2009/2627
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A window covering consisting of spaced sheets of translucent or transparent material interconnected by vanes wherein the vanes may be configured in non-rectangular patterns. Elongated vanes having scalloped edges may be utilized or a plurality of smaller individual vanes connected between the sheets of material randomly or in rows may also be utilized. In a closed condition of the window covering, the vanes extend substantially parallel to the sheets of material and usually overlap to block the passage of light therethrough whereas, in an open condition the vanes predominantly extend substantially perpendicularly to the sheets of material to permit the passage of light therethrough.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.