Ventilation system for headlamp
US4937710A · kind A · utility
21Cited by
5References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 18, 1988 |
| Grant date | Jun 26, 1990 |
| Priority date | — |
| Expiry date | Apr 18, 2008 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21S45/33
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A ventilation system for a replaceable bulb headlamp that has a vent device which, when combined with a reflector housing of the headlamp, creates a spiraling passage through which air is capable of flowing into and out of the interior of the headlamp.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.