Multicolor indicator with arcuate pole pieces

Details Multicolor indicator with arcuate pole pieces Multicolor indicator with arcuate pole pieces

1986-03-03

1987-11-17

Mancene, Gene

Card, picture, or sign exhibiting

Changing exhibitor

Alphanumeric device

54081526, G09F 900

Patent

active

047063980

ABSTRACT:
A display element has a rotor designed to assume 3 or 4 angular positions to display corresponding panels on a viewing direction. The rotor has a permanent magnet at an angle to the axis. The position of the permanent magnet and rotor are controlled by stationary pairs of pole piece tips adjacent but spaced from each other, located adjacent the locus of the magnet at locations spaced by the angle between adjacent locations.

REFERENCES:
patent: 3307170 (1967-02-01), Aoyama et al.
patent: 3435392 (1969-03-01), Ouellette et al.
patent: 4001815 (1977-01-01), Gamble
patent: 4521983 (1985-06-01), Wakatake
patent: 4558529 (1985-12-01), Chang et al.
IBM Technical Disclosure, vol. 2, No. 2, Aug. 1959, Middelhock, S. and Wiedmer, F., Numeral Indicator.

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