Vane operated display or indicating device

Details Vane operated display or indicating device Vane operated display or indicating device

1982-06-21

1984-01-24

Mancene, Gene

Card, picture, or sign exhibiting

Changing exhibitor

Alphanumeric device

40485, 40474, G09F 900

Patent

active

044267991

ABSTRACT:
A display or indicator element has a set of movable and a set of fixed vanes of contrasting colors. Each set of vanes encompasses what is substantially a circle in the viewing direction. The sets of vanes are arranged so that the moving vanes move between a position where they are hidden (in the viewing direction) behind the stationary vanes and a position where the moving vanes occlude the stationary vanes. In such movements each moving vane passes between a pair of stationary vanes. Accordingly, contrasting effects are produced. Preferably the actuation for the movable vanes is electromagnetic.

REFERENCES:
patent: 1481256 (1924-01-01), Dols
patent: 1547864 (1925-07-01), Etcheto
patent: 3149430 (1964-09-01), Szabo et al.
patent: 3295238 (1967-01-01), Winrow
patent: 3315389 (1967-04-01), Drueck, Jr.
patent: 3419858 (1968-12-01), Silverman et al.
patent: 4211414 (1980-07-01), Moodt

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