Sequence reversing border light display

Details Sequence reversing border light display Sequence reversing border light display

1975-12-18

1977-01-04

Trafton, David L.

Communications: electrical

Systems

With specific power supply

4010652, 315323, 340331, G08B 536

Patent

active

040018105

ABSTRACT:
A series of flashing lights arranged in a line or circle appear as a group to move or rotate by properly timing the OFF or periods of the lights. The lights are divided into three interpositioned groups for separate control. The groups progressively go dark in one sequence and then in the reverse sequence by the aid of a simple cam clock means that periodically switches the cadence of only one of the groups to cause it alternately closely to lead or follow one of the other groups. No mechanical reversals of clock means occurs.

REFERENCES:
patent: 502007 (1893-01-01), McCormick
patent: 1913504 (1933-06-01), Nachumsohn
patent: 2125668 (1938-08-01), Chase
patent: 3781604 (1973-12-01), Scarpino
patent: 3838412 (1974-09-01), Jones et al.

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