Illumination – Supports – Moving mass control movable light support
Patent
1997-09-19
1999-11-02
Patel, Nimeshkumar D.
Illumination
Supports
Moving mass control movable light support
362286, 362403, 362250, 362391, 362431, B60Z 112
Patent
active
059757264
ABSTRACT:
A high mast lighting system is disclosed in which an elongated vertical mast having upper and lower ends is surrounded by an annular support ring. The support ring has a plurality of lamps removably mounted thereon. Drive means is provided for raising and lowering the ring along the mast between its upper and lower ends. A plurality of guide rollers are mounted on the upper end of the mast with a plurality of flexible cables operatively connected at one end to the ring and guided over the rollers on the mast. The opposite ends of the cables extend downwardly from the rollers into the mast where they are operatively connected to the drive means which selectively moves the cables upwardly and downwardly in the mast to raise and lower the ring. The system includes a rigid hollow latching arm associated with at least one of the cables and pivotally connected to the ring above the connection of its associated cable to the ring with the cable passing through the arm. A latch member is mounted on the upper end of the mast in association with the latching arm and is adapted to engage cooperating means on the latching arm for selectively releasing the arm in the ring for lowering the ring and for latching the ring in its uppermost position. The ring also includes an inner wall facing the mast and resilient bumper means mounted thereon.
REFERENCES:
patent: 3721816 (1973-03-01), Zeller
patent: 3801813 (1974-04-01), Kiehn
patent: 4115845 (1978-09-01), Blahut
Patel Nimeshkumar D.
Quality Lighting
Smith Michael J.
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