Illuminated instrumentation display
US5319527A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 20, 1992 |
| Grant date | Jun 7, 1994 |
| Priority date | — |
| Expiry date | Nov 20, 2012 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60K2360/698
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An illuminated apparatus comprises a fixedly mounted air core gage having a spindle which rotates in response to signals provided to the air core gage, a first coil fixably mounted with respect to the air core gage having a first axis coaxial with the spindle, a power source coupled to the first coil, providing power to the first coil, which responsively generates a magnetic flux, a pointer body mounted to the spindle and rotating in response to rotation of the gage spindle, a second coil mounted to the pointer body adjacent to the primary coil, a light source mounted on the pointer body, coupled to and receiving the electric current from the second coil, the electric current illuminating the light source, and a light pipe pointer arm receiving light from the light source and emitting light out of an exit surface to appear as an illuminated pointer to an observer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.