Motorized system for closing a building
US8125176B2 · kind B2 · utility
0Cited by
11References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 25, 2007 |
| Grant date | Feb 28, 2012 |
| Priority date | — |
| Expiry date | Jan 29, 2029 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE06B9/70
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention relates to a motorized system for closing a building, of the roller shutter type with the particular feature that it has a two-phase asynchronous motor which comprises two windings (2; 3) and is combined with a speed-varying device (5).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.