High efficiency roller shade
US8659246B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 19, 2011 |
| Grant date | Feb 25, 2014 |
| Priority date | — |
| Expiry date | Aug 7, 2032 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE06B2009/6872
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A motorized roller shade is provided. The motorized roller shade includes a shade tube in which a motor unit, a controller unit and a power supply unit are disposed. The controller unit includes a controller to control the motor. The power supply unit includes at least one bearing rotatably coupled to a support shaft. The motor unit includes at least one bearing, rotatably coupled to another support shaft, a DC gear motor and a counterbalancing device. The output shaft of the DC gear motor is coupled to the support shaft such that the output shaft and the support shaft do not rotate when the support shaft is attached to a mounting bracket.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.