Portable public display apparatus for illuminating a driven tran

Details Portable public display apparatus for illuminating a driven tran Portable public display apparatus for illuminating a driven tran

1992-08-11

1994-10-18

Crowder, Clifford D.

Card, picture, or sign exhibiting

Changing exhibitor

Motor operated

40518, G09F 1118

Patent

active

053556011

ABSTRACT:
A public display apparatus that provides a relatively large, high-quality visual image by using a sheet of flexible transparent material with high-quality images on it suspended between a driven roller and a tension roller inside a container body. The rollers are parallel with a distance between them creating a display area. A driving source is connected to the driven roller to rotate the driven roller and move a sheet with the images either forward or backward. A tension source is connected to a tension roller to maintain the tautness of the sheet with high-quality images and the visual images distortion free.

REFERENCES:
patent: 2585687 (1952-02-01), Sanderson
patent: 2867050 (1959-01-01), Westfall
patent: 3600834 (1971-07-01), Stamer
patent: 3703778 (1972-11-01), Pfleger
patent: 3729731 (1973-04-01), Konnerth et al.
patent: 3754342 (1993-07-01), Santacroce et al.
patent: 4201002 (1980-05-01), Barton
patent: 5072533 (1991-12-01), Doepgen

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