Extruded track lighting system

Illumination – Supports – Line-wire or cable-attaching support

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Details

362226, 362239, 439110, F21V 2132

Patent

active

058333584

ABSTRACT:
An improved extruded track lighting system having a support rail with a pair of cylindrical conductors exposed on an insulating extrusion. Various light fixtures having clamp brackets may be easily snapped on and off the support rails. Each of the clamp brackets includes a pair of parallel flat legs having gripping portions to conform with exposed cylindrical conductors on either side of the support rail. Alternatively, the clamp brackets may include outwardly extending tangs which can be forced between a pair of conductors on the interior of the extrusion. The brackets are simply swiveled with respect to the rail to couple or remove. No independent fastening means are needed to tighten the clamp brackets to the support rails. In one embodiment a light fixture includes a single swivel axis, while in another embodiment a light fixture includes a universal joint providing two orthogonal swivel axes between the lamp and the support rail. Low-voltage electricity conducts directly through the clamp brackets and swiveling light fixtures to the lamps. The support rails may be bent about at least two axes while still allowing coupling of the light fixtures in the bend.

REFERENCES:
patent: D358803 (1995-05-01), Shen
patent: D361153 (1995-08-01), Fernandes
patent: 4655520 (1987-04-01), Cummings
patent: 4845601 (1989-07-01), Podbury et al.
patent: 4861273 (1989-08-01), Wenman et al.
patent: 4979081 (1990-12-01), Leach et al.
patent: 5151037 (1992-09-01), Range et al.
patent: 5151038 (1992-09-01), Range et al.
patent: 5154509 (1992-10-01), Wulfman et al.
patent: 5207589 (1993-05-01), Lettenmayer
patent: 5340322 (1994-08-01), Poulsen
patent: 5341276 (1994-08-01), Shen
patent: 5455754 (1995-10-01), Hoffner
"The Galaxis System, the low voltage contact rail lighting system from Betec", Translite Systems brochure, 1992.
National Specialty Lighting, Architectural and Decorative Lighting, 1995, Front page and pp. 22 and 23.
Bruck Lighting USA brochure, front page and pp. 3, 6, 20 and back cover.

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