Sealed acorn luminaire having a one-way outflow seal and a one-way inflow electrical grommet seal
US7611265B2 · kind B2 · utility
20Cited by
85References
21Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 27, 2007 |
| Grant date | Nov 3, 2009 |
| Priority date | — |
| Expiry date | Jun 15, 2027 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21V31/03
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An sealed acorn style luminaire is described. The luminaire has generally separate inflow and outflow valves for pressure equalization in order to minimize the amount of dust and other foreign matter which could enter into the sealed optical compartment thereby reducing the optical characteristics of the fixture. A one way outflow valve and seal is provided in combination with controlled inflow seals to reduce or limit the dirt and other foreign substances in the sealed optical compartment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.