Recovery of potential energy from the apron of a roller blind
US8278772B2 · kind B2 · utility
Assignees
Inventor
Key dates
| Filing date | Aug 5, 2008 |
| Grant date | Oct 2, 2012 |
| Priority date | — |
| Expiry date | Aug 1, 2029 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE06B2009/807
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The method of recovering the potential energy from the apron of a roller blind including a driving motor connected to an autonomous energy supply during the expansion or retraction phase of the apron, during the expansion or retraction phase of the apron, by determining an energy recovery phase corresponding to a motor torque applied by the apron on the driving, which allows energy recovery without damaging the components of the blinds. A roller blind for implementing the method recovers energy corresponding to the motor torque exerted by the apron by measuring and storing at least one parameter related to the conditions of operation of the autonomous supply as well as the delivered level of energy, comparing it with a threshold value, and adjusting the unwinding and winding-up speed of the apron.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.