Device for the display of advertising material

Details Device for the display of advertising material Device for the display of advertising material

1988-07-25

1990-10-30

Dorner, Kenneth J.

Card, picture, or sign exhibiting

Changing exhibitor

Motor operated

40518, 40522, 74526, G09F 1118

Patent

active

049659472

ABSTRACT:
The invention relates to a device for the display of advertising messages which comprises two rollers 7, 8 for winding and unwinding a flexible member (9), such as a sheet which bears advertising messages which can be seen through a front screen, within a body (1) with a transparent front screen (3) which is illuminated from the rear. Each roller (7,8) is driven by a transmission which includes an idling wheel (15, 16, 25, 26) so that when one roller winds up the flexible member the other roller idles thus permitting unwinding of the said member (9).

REFERENCES:
patent: 1310689 (1919-07-01), Carpenter
patent: 1375005 (1921-04-01), James et al.
patent: 3145581 (1964-08-01), Schrecongost et al.
patent: 3510973 (1970-05-01), Mazzocco, Sr.
patent: 3822493 (1974-07-01), Maley
patent: 4110925 (1978-09-01), Strand et al.
patent: 4162585 (1979-07-01), Decaux

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