Body height adjustable electric bulb for illuminated signs
US6343871B1 · kind B1 · utility
48Cited by
26References
10Claims
0Family size
Inventor
Key dates
| Filing date | Mar 22, 2000 |
| Grant date | Feb 5, 2002 |
| Priority date | — |
| Expiry date | Mar 22, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S362/812
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A body height adjustable electric bulb for illuminated sign wherein the bulb comprises a height adjusting unit inserted into an open end of a bulb body against friction between them such that the height of the bulb body can be adjusted by a force against such friction. A connector is fixed on a bulb head and connects to a joint end of the height adjusting unit such that the bulb body can be rotated by a proper torque.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.