Card – picture – or sign exhibiting – Display device with free article movement
Patent
1977-08-15
1980-08-05
Mancene, Louis G.
Card, picture, or sign exhibiting
Display device with free article movement
G09F 1900
Patent
active
042155002
ABSTRACT:
A display device for creating amusing visual effects from the motion of beads of expanded polystyrene or similar materials in a stream of flowing air, accompanied by the audible effects attendant thereto. An air flow is introduced into the bottom of a vertical, transparent column into which has been placed a plurality of beads sufficiently small to be floated by the stream of air. The top and bottom openings of the vertical column are closed by wire screens to contain the beads while allowing air to pass. Colored lights may be employed to illuminate the top and bottom regions of the column.
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Chemical Engineering Handbook: McGraw-Hill 1973.
"Glitterlamps" by Fantasia--2 pp.
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Contreras Wenceslao J.
Mancene Louis G.
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