In-grade lighting system
US7806550B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 27, 2007 |
| Grant date | Oct 5, 2010 |
| Priority date | — |
| Expiry date | Sep 24, 2028 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21Y2115/10
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A lighting system has a sealable housing with a lamp cavity, a junction box and a partition wall there between with the junction box being laterally from beneath a lens opening. The system further includes a closure to close an access port in the partition wall which includes a conical wall with a circular plate truncating the wall. The plate extends across the bottom of the housing and a vertically extending sealing flange receives the closure. A ballast assembly is also located from beneath the lens opening. A formed seal is positioned about a lens which extends inwardly to capture optic components beneath the lens. A locking ring is restrained from compressing against the mounting flange of the lens. A lighting system employing an LED board array and LED power control includes a heat sink beneath the board array extending downwardly to a radiator for transfer of heat from the array downwardly to the lamp cavity for dissipation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.