Display means

Details Display means Display means

1987-10-05

1989-08-29

Mancene, Gene

Card, picture, or sign exhibiting

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Alphanumeric device

40470, 40492, G09F 304

Patent

active

048604712

ABSTRACT:
The present invention concerns a display means.
This display means comprises a thin, light pivoting flap (5) with two principal surfaces (6, 6') and a rotating stepping motor (13). The motor drives the shutter by means of an elastic device (16) which times motor acceleration. A predetermined number of motor steps corresponds to one complete rotation of the flap.
The display means is used to form large display units for train stations, airports, etc.

REFERENCES:
patent: 3975728 (1976-08-01), Winrow
patent: 4531318 (1985-07-01), Chang et al.
patent: 4627182 (1982-12-01), Weiss

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