Fluorescent mine lighting fixture

Details Fluorescent mine lighting fixture Fluorescent mine lighting fixture

1976-10-27

1981-01-27

Walsh, Donald P.

Illumination

Self powered lamp

Nonelectric

362217, 362223, 362260, F21L 2300, F21S 300

Patent

active

042478847

ABSTRACT:
The fixture includes a mount assembly preferably including a cage. A lamp/bar assembly slides longitudinally into the mount assembly cage. The power cable of the lamp/bar assembly extends through a packing end cap. A transparent/translucent shatterproof plastic lamp tube protector sleeve is threadably secured to the packing end cap and encloses the lamp/bar assembly. When the packing end cap engages the cage and the protector sleeve is inside the cage, an inspection end cap is threadably secured on the opposite end of the protector sleeve. Thus, the protected lamp/bar assembly. The lamp may be replaced by removing the inspection end cap. Should there be an explosion within the fixture, heat will be dissipated as the expanding gases pass out of the fixture through the threading between the protector sleeve and end caps. The lamp/bar assembly is secured at a selected angle about the longitudinal axis of the mount assembly, between the two end caps. Elastomeric members mechanically isolate the lamp from the lamp holders, the lamp bar assembly from the end caps and the end caps from the mount assembly. The lamp holders, reflector, ballast and starter may be mounted on the lamp bar.

REFERENCES:
patent: 3136489 (1964-06-01), Oharenko
patent: 3805053 (1974-04-01), Julinot
patent: 3808495 (1974-04-01), Win
patent: 4042819 (1977-08-01), Dacal

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