Card – picture – or sign exhibiting – Check – label – or tag – Reinforced
Patent
1974-07-19
1976-06-01
Burr, Edgar S.
Card, picture, or sign exhibiting
Check, label, or tag
Reinforced
40 37, 40 28C, G09F 1100
Patent
active
039599027
ABSTRACT:
A number of elementary units each including an elementary plate member are arrayed in rows and columns to provide a screen, with each elementary plate member pivotally supported so as to be independently reversible as to its front and rear faces to be exhibited to the viewer. Both faces of each elementary plate member are imbued with different colors clearly distinguishable from each other. Pneumatic actuating means comprising air nozzles or slide valves for producing controlled currents of air under pressure are arranged behind the array of elementary plate members in a manner such that the elementary plate members are selectively reversed as to their front and rear faces, in the order of successive rows or columns, for the display of any desired graphic or alphanumeric pattern. The elementary unit itself can be used as a display device if the front and rear faces of the elementary plate bear necessary letters or patterns thereon.
REFERENCES:
patent: 3374565 (1968-03-01), Woolfolk
patent: 3482344 (1969-12-01), Holloman
patent: 3611598 (1971-10-01), O'Keefe
patent: 3745563 (1973-07-01), Jones
Burr Edgar S.
Dai Nippon Insatsu Kabushiki Kaisha
Heinz A.
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