Device system for a display panel capable of displaying a plural

Details Device system for a display panel capable of displaying a plural Device system for a display panel capable of displaying a plural

1989-05-12

1991-01-29

Cranmer, Laurie K.

Card, picture, or sign exhibiting

Changing exhibitor

Rotatable carrier for display item

40505, G09F 1102

Patent

active

049876910

ABSTRACT:
A drive system for a display panel has a plurality of rotary, triangular columns positioned in parallel, juxtaposed relationship and whose corresponding side faces in the different positions of the columns can display a plurality of different images. The columns are supported for rotation at both ends and are each provided at one end with a substantially triangular rotation element. Displacement means driven by a common drive unit rotate the successive rotation elements consecutively through about 120.degree..

REFERENCES:
patent: 1555690 (1925-09-01), Mitnitzky
patent: 1857387 (1932-05-01), Lippe-Lipshi
patent: 3304638 (1967-02-01), Grandell et al.
patent: 3826027 (1974-07-01), Abbema

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