Skew adjustment device for coverings for architectural openings
US8006736B2 · kind B2 · utility
7Cited by
25References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 6, 2009 |
| Grant date | Aug 30, 2011 |
| Priority date | — |
| Expiry date | Jan 5, 2030 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE06B9/42
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A device for correcting skew in roll-up retractable coverings for architectural openings includes a friction device positioned within the head rail for movement between releasably fixed positions and disposed for engagement with the fabric of the covering to regulate the rate at which the fabric is wrapped about a roller in the covering at selected locations along the length of the roller to correct for any inherent skew in the covering.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.