Brake device for cordless lift shades
US9695633B2 · kind B2 · utility
11Cited by
22References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 2, 2016 |
| Grant date | Jul 4, 2017 |
| Priority date | — |
| Expiry date | Feb 2, 2036 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE06B2009/3225
- 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 assembly coupled to the first rail. The lift assembly includes a drum rotatable about an axis, and a brake selectively engageable with the drum. The brake automatically engages the drum to resist the second rail moving away from the first rail; and the brake automatically disengages the drum in response to the second rail moving toward the first rail.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.