Cordless shade automatic lift regulator
US9765565B2 · kind B2 · utility
9Cited by
22References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 2, 2016 |
| Grant date | Sep 19, 2017 |
| Priority date | — |
| Expiry date | Feb 2, 2036 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE06B2009/3222
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A covering for an architectural opening including a first rail, a second rail moveable relative to the first rail, and a lift regulator coupled to the first rail. The lift regulator includes a drag mechanism, and the lift regulator automatically engages the drag mechanism to resist the second rail moving away from the first rail. In addition, the lift regulator automatically disengages the drag mechanism when the second rail moves toward the first rail.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.