Self-luminescent pointer device for a gauge
US5050045A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 1, 1990 |
| Grant date | Sep 17, 1991 |
| Priority date | — |
| Expiry date | Oct 1, 2010 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60K2360/33
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A self-luminescent pointer device for a gauge has the pointer which is fitted on a pointer shaft and includes an elongated discharge tube. A constricted portion is formed on a part of an outer surface of its elongated hollow rod bulb of the discharge tube. An interior electrode is provided at the end of the bulb and an exterior electrode is provided on the outer surface of the bulb in its axial direction. The constricted portion of the bulb is engaged with a cut-away portion of a holding plate so that the discharge tube is positioned and fixed in its longitudinal direction. Electric power is supplied to the interior electrode and the exterior electrode of the discharge tube through each power supply terminal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.