Illuminated dial
US7222979B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 9, 2005 |
| Grant date | May 29, 2007 |
| Priority date | — |
| Expiry date | Nov 9, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H19/025
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An illuminated knob assembly includes a base. The base includes an annular track on an upper base surface of the base. A PC board is disposed in the track. The PC board includes a plurality of light sources disposed on an upper board surface of the board. A light transmitting plate is positioned over the PC board so as to transmit light therethrough from the light sources. A bezel is fitted over the light transmitting plate and includes gradated openings corresponding to different conditions of operation. The openings permit light to pass therethrough from the light transmitting plate and a knob is disposed adjacent the bezel. The knob includes a light pointer configured to receive and transmit light from the light transmitting plate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.