Operating lamp with main bulb and replacement bulb
US5676452A · kind A · utility
32Cited by
4References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 28, 1996 |
| Grant date | Oct 14, 1997 |
| Priority date | — |
| Expiry date | Feb 28, 2016 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21W2131/205
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An operating lamp has at least one main bulb 11 arranged at a desired position 13 and a replacement bulb 12 arranged at a waiting position 14 located close the desired position 13. The main bulb 11 and the replacement bulb 12 are displaceably mounted and controlled in such a way that when the main bulb 11 burns out it is moved away from the desired position 13 and the replacement bulb 12 is moved from the waiting position 14 to the desired position 13 and is held there. The main bulb 11 and the replacement bulb 12 are mounted on holders 15, 16 which are moveable independently of one another.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.