US 2011/0032709 A1 · IN-GRADE LIGHTING SYSTEM

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.

Claims2

Dependent claims

A lighting system comprising

a sealable housing including a bottom wall, a top wall having a first portion with a lens seat extending upwardly from the top wall to define a lens opening and a second closed portion extending laterally from the lens seat, a cavity between the top wall and the bottom wall, a junction box between the top wall and the bottom wall and a partition wall bifurcating the housing between the cavity and the junction box and having an access port there through directly beneath the lens opening;
a light emitting diode power control in the cavity directly beneath the second closed portion of the top wall and not directly beneath the lens opening, the second closed portion of the top wall extending fully above the light emitting diode power control;
a light emitting diode board array in the cavity directly beneath the lens opening;
a radiator directly beneath the light emitting diode board array including fins in thermal contact with the light emitting diode board array, the radiator being constructed and arranged to radiate to directly beneath the second closed portion of the top wall.

1 more element

Dependencies are inferred from the claim text.

In-grade lighting system

Life of this patent

In-grade lighting system

Life of this patent

Abstract

Claims2