Pointers
US5199376A · kind A · utility
10Cited by
5References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 23, 1990 |
| Grant date | Apr 6, 1993 |
| Priority date | — |
| Expiry date | Jul 23, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S116/06
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An illuminable pointer comprising an at least translucent pointer staff and an at least translucent boss suitable for illumination by a light source, wherein the boss includes a staff hole adapted for mounting the pointer for rotation on a spindle and a cavity for holding a known mass to counterbalance the pointer staff, the boss having reflecting surface shaped so to reflect substantially parallel incoming light along the pointer staff towards a focus point outside the distal end of the pointer that the pointer staff is evenly illuminated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.