Simplified device for magnetically operating blinds within a glass-enclosed chamber
US7191817B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 8, 2002 |
| Grant date | Mar 20, 2007 |
| Priority date | — |
| Expiry date | Jul 8, 2022 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE06B2009/2646
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
System for operating a blind in a glass-enclosed chamber the ends of said blind being respectively fitted to a fixed upper box (40) and to a movable box (60), subjected both to a guide device for translation, parallel to itself, when opening and closing said blind by a pair of cords (85, 86) interacting between the fixed (40) and movable (60) boxes and a lower fixed box (50), and also to a pulling device comprising a small box containing permanent magnets fixed to the movable box (60) and a free knob, containing permanent magnets of opposing pole, so that by matching, through a pane of glass, the magnets in said knob with those fixed to the movable box (60), the blind can be opened or closed as desired.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.