Illumination – Elongated source light unit or support – With ventilating or cooling means
Patent
1993-08-04
1995-05-02
Lazarus, Ira S.
Illumination
Elongated source light unit or support
With ventilating or cooling means
362267, 362310, 362158, 362225, 362223, 362294, F21V 3102
Patent
active
054125499
ABSTRACT:
A lighting device comprises a waterproof housing in the form of an elongated flattened tube of substantially uniform transverse cross section that encloses a plurality of parallel tubular fluorescent lamps positioned lengthwise in the housing. The housing has two substantially parallel face walls of relatively large area and two connecting walls of relatively small area, at least one of the two substantially parallel face walls being transparent. The housing further comprises a watertight closed end and an open end having a rim that corresponds to the cross section of the housing at that end. A removable watertight cap covers the open end of the housing, the underside of the cap having a circumferential groove corresponding to the rim of the housing, and a gasket is positioned in the groove. The cross section of the housing is elongated transversely and is indented at each end thereof to form a lengthwise groove in the outer surface of each of the connecting walls of the housing. The grooves extend outside of the housing for the entire length of the housing. A rod is positioned in each of the grooves outside of the housing; each rod being fixed to the closed end of the housing and being of length sufficient to extend above the open end of the housing and through the cap positioned on the open end. Means such as a threaded nut at the end of each rod presses the gasket in the groove of the cap into watertight engagement with the rim of the housing. A flexible tube, attached in watertight connection to an opening in the cap, encloses an electrical conductor which is connected to circuitry for the fluorescent lamps in the housing and is connectable to a source of low voltage direct current. The tube vents the interior of the housing to the atmosphere.
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Lazarus Ira S.
Sember Thomas M.
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