Pole vibration damping apparatus

Details Pole vibration damping apparatus Pole vibration damping apparatus

2011-01-18

2011-01-18

Mack, Ricky L (Department: 2885)

Illumination

Housing

With mounting means

C362S390000

Reexamination Certificate

active

07871186

ABSTRACT:
A highway lighting apparatus includes a lighting fixture, and a vibration damper. The vibration damper includes a housing having a ball chamber, the chamber being of square shape. One or two vibration damping balls are mounted in the chamber for independent free rolling movement therein. If two balls are used, the ball diameter is shorter than one-half of each of the four chamber sides. If the damper is used on a pole having a side-mounted light fixture, the housing would include a downwardly open socket receiving the top end of the pole, with a center axis of the pole coinciding with respective center axes of the chamber and the socket. In the case where the damper is used on a pole having a top-mounted light fixture, the damper would be mounted below the light fixture on a side of the pole.

REFERENCES:
patent: 5896961 (1999-04-01), Aida et al.
patent: 7232017 (2007-06-01), Minor
patent: 2005/0217955 (2005-10-01), Minor

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