In-grade light fixture

Details In-grade light fixture In-grade light fixture

2005-11-04

2009-06-30

O'Shea, Sandra L (Department: 2875)

Illumination

With static structure

Pavement

C362S153000, C362S364000, C362S372000, C362S269000, C362S294000

Reexamination Certificate

active

07553042

ABSTRACT:
An in-grade light fixture comprises a light fixture housing arranged to be buried substantially below grade level. The light fixture housing has a light opening substantially at grade level and an optical chamber having a light source arranged within the optical chamber and the optical chamber arranged within the housing with light from the light source passing through the light opening. The fixture further comprises a plurality of housing openings and one or more enclosures, each of which is removably mounted to a respective one of the housing openings. The enclosures accept external power and generate power to energize the light source causing it to emit light. The optical chamber can also comprise an anti-condensation valve and an air passageway between the optical chamber and one of the enclosures form a vacuum in the optical chamber and vacuum during operation.

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