Dual-conductor suspension system for an electrical apparatus
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United States of America Patent
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Nov 27, 2018
Grant Date -
Jul 14, 2016
app pub date -
Jan 13, 2016
filing date -
Jan 13, 2015
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A system for suspending and powering an electrically-powered fixture, such as a luminaire, with a coaxial suspension cable, and for attaching the fixture to the cable and to a structure, such as a ceiling, using at least one cable gripping devices, such that the height of the fixture may be adjusted. The suspension cable may comprise an inner cable, which may include a plurality of strength strands wound around a conductive strand; and an outer conductor, such as a copper mesh, separated from the inner cable by an insulator layer. The system may include an assembly mounted to the structure and an assembly mounted to the fixture, each assembly configured to grip the inner cable at one end of the suspension cable and to allow a first conductive path to the inner cable and a second conductive path, insulated from the first conductive path, along the outer conductor.
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