Magnetic brake for window covering powered by DC motor
US7259485B2 · kind B2 · utility
22Cited by
25References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 9, 2005 |
| Grant date | Aug 21, 2007 |
| Priority date | — |
| Expiry date | Sep 24, 2025 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE05Y2900/106
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A braking magnet is attached to the housing of a motor of a motorized component such as a window covering. With this structure the motor is braked from turning under the weight of the window covering when deenergized.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.