Vehicle headlamp with a vent hole
US4809144A · kind A · utility
27Cited by
1References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 2, 1987 |
| Grant date | Feb 28, 1989 |
| Priority date | — |
| Expiry date | Dec 2, 2007 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21S45/33
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A vehicle headlamp in which an elongated tubular container having small openings in front and rear ends thereof and filled therein with a drying agent extends through the lamp housing. The size of the small opening at the end of the container which is interior of the lamp housing is smaller than the size of the small opening in the end of the container which is exterior of the lamp housing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.