Modular explosion protected lamp fixture meeting "increased safe

Illumination – Elongated source light unit or support – With means to accommodate additional circuit element

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362223, F21V 2100

Patent

active

050123955

ABSTRACT:
To permit manufacture of totally enclosed "increased safety" light fixtures without requiring specific molds for light fixtures capable of accommodating lamps of different sizes, such as florescent lamps (39), the fixture is assembled of an elongated profiled extrusion structure (2, 9) to which end caps (11) are attached, the extrusion structure having upstanding side walls formed with a groove (24, 25) shaped to receive a piano hinge (4) which is located in a transparent cover (3), the cover and the trough-like portions (2, 9) with the end caps being formed with interengaging projection-and-recess means, with a sealing strip (56) located in the recess. The construction permits manufacture of the trough-like portion of fiber-reinforced plastic, for example glass fiber reinforced polyester, and undercut grooves, as desired, example attachment grooves (45, 46), T grooves (35, 49) to hold locking or retention elements, and internal undercut projections (43, 44) to retain electrical operating elements such as lamps, ballasts and the like.

REFERENCES:
patent: 4323954 (1982-04-01), Florence et al.

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