Control element with animated symbols
US7485821B2 · kind B2 · utility
1Cited by
10References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 15, 2006 |
| Grant date | Feb 3, 2009 |
| Priority date | — |
| Expiry date | Jun 15, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2219/024
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A control element for an electric control device is disclosed that includes a freely programmable symbolic system, whereby the symbols are projected into a side of the control element that is facing away from the operator by a controllable display unit and an illuminating device arranged in front thereof, or by a controllable display unit and an optics, or by a controllable display unit and a light guide, and whereby the symbols are made visible by a transmissive layer on the side of the control element that faces the operator, whereby alternating symbols are generated in the display unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.