Rotary unit and illumination unit for a 3-side variable advertis

Details Rotary unit and illumination unit for a 3-side variable advertis Rotary unit and illumination unit for a 3-side variable advertis

1996-11-04

1997-12-09

Hofsass, Jeffery

Communications: electrical

Visual indication

Audio responsive lamp

34081569, 40473, 40493, 40502, 40503, 116286, G08B 500

Patent

active

056964943

ABSTRACT:
A rotary unit and illumination unit for a 3-side variable advertisement display board is disclosed. It has a frame made up of a lower groove and two lateral hollow tubes and fixed to a supporting leg by welding. Light tubes are fixed inside triangular hollow columns by rubber pads screwed to an upper member. A cross-head shaft passing through the worms of a worm gear disposed inside a lower supporting member and connected to a rectangular axle on top of the lower supporting member, is joined to a gearing wheel which driven by a driving wheel actuated by a motor, will cause the movement of the cross-head shaft, resulting in the rotation of the triangular hollow columns. An ultra-red ray sensor is used to signal the stop movement of the triangular hollow columns, a timer and a rectifier are used to preset and control the regular movement of the triangular hollow columns. Consequently, the advertisements displayed on the three faces of the triangular columns can be displayed completey in turns as a result of the regular movement of the triangular hollow columns.

REFERENCES:
patent: 3918183 (1975-11-01), Poulos
patent: 4002022 (1977-01-01), Lopez
patent: 4182059 (1980-01-01), Greene
patent: 4558529 (1985-12-01), Chang et al.
patent: 5003716 (1991-04-01), Dyar
patent: 5046274 (1991-09-01), David
patent: 5297353 (1994-03-01), Ghalayini
patent: 5315776 (1994-05-01), Strawbridge et al.

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