Electromagnetic display

Details Electromagnetic display Electromagnetic display

1984-01-19

1986-10-07

Brigance, Gerald L.

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

34081504, 34081526, G09G 334

Patent

active

046162216

ABSTRACT:
An electromagnetic display or indicator element comprises a disc having a permanent magnet perpendicular to the disc's rotary axis. The disc is controlled by a single high remanence pole piece which has its forward end transversely (relative to the viewing direction) located relative to the disc to exert the main control on the magnet therein and its rearward end located rearwardly of the center of the disc.

REFERENCES:
patent: 3469258 (1969-09-01), Winrow
patent: 3916403 (1975-10-01), Mandzsu et al.
patent: 4156872 (1979-05-01), Helwig
patent: 4394652 (1983-07-01), Nabette
patent: 4401959 (1983-08-01), Enright et al.
patent: 4425864 (1984-01-01), Skrobisch
patent: 4531318 (1985-07-01), Chang et al.

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