Sealed beam lamp unit
US4425607A · kind A · utility
6Cited by
1References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 5, 1982 |
| Grant date | Jan 10, 1984 |
| Priority date | — |
| Expiry date | Feb 5, 2002 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21S41/29
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An adhesively sealed beam lamp unit including a lens and reflector having substantially rectangular peripheries and cooperating and opposing step-shaped sealing surfaces located approximately about the lens and reflector peripheries. Contact between the lens and reflector sealing surfaces is limited to one or more portions along the long sides of a pair of opposing steps. Additionally reservoirs, located on either side of the sealing surfaces, restrict excess adhesive from spreading onto areas affecting lamp unit optical performance or outer dimensions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.