Illumination – Automatic substitution of power supply or light source
Patent
1984-08-23
1986-07-15
Wolfe, Willis R.
Illumination
Automatic substitution of power supply or light source
362147, 362183, 362240, 362269, 362427, F21S 902, F21V 1904
Patent
active
046009728
ABSTRACT:
An emergency lighting fixture has a capped circular and longitudinally slotted tube containing a power supply and charging electronics. Cylindrical outer envelopes rotatably enclosing the tube each have pivotally mounted lamp shells at opposing ends. A spider plate attachable canopy having integrally molded apertured inner lugs has an outer integrally molded arm supported overhanging portion, the arm being of substantial cross section for supporting the tube weight centrally supporting the lighting fixture. The tube has a longitudinal support slot receiving a rectangular support piece terminating from the canopy arm. End caps enclosing tube ends each have a circumferential groove for receiving guide nubs are disposed in spaced apart relationship on the inner circumference of the envelopes. The envelopes have oblique truncated surfaces allowing beam positioning without envelope interference. Installation is achieved by affixing the spider to an outlet box, joining the wires of the outlet box to those from the canopy, and affixing the canopy to the spider plate. The support portion of the canopy is slid into the tube slot and tube, the envelopes are fitted over the tube and polarized electrical connectors are joined. Beam adjustment is effected by envelope rotation and shell pivoting, without significantly changing the overall cylindrical appearance of the fixture.
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"Dual-lite EZ-1", Dual Lite Emergency Lighting Division, May 1980.
Hazenlite Incorporated
Supnik Paul D.
Wolfe Willis R.
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