Flowing liquid illusion

Details Flowing liquid illusion Flowing liquid illusion

1991-08-19

1992-05-05

Dorner, Kenneth J.

Card, picture, or sign exhibiting

Display device with gas or liquid movement

40409, G09F 1900

Patent

active

051096200

ABSTRACT:
A display providing the illusion of a stream of liquid coming from an unconnected spigot, the stream flowing into a receptacle. A transparent tube, hidden within the stream, runs from the receptacle to the spigot to carry the liquid upwardly to the spigot. A second tube, colorless and transparent, surrounds the stream of water, to prevent evaporation and accidental spillage on a person. A small colorless and transparent air tube runs from the receptacle upwardly between the inner and outer tubes to a mixing chamber at the top of the tubes. Air is drawn upwardly through the tube by a Venturi effect within the mixing chamber and mixes with the water. As a result, the downwardly flowing water is filled with bubbles and can be seen.

REFERENCES:
patent: 1536188 (1925-05-01), Brown
patent: 1712487 (1929-05-01), Avirgon
patent: 1990230 (1935-02-01), Gray
patent: 2762202 (1956-09-01), Ponsar
patent: 3371618 (1968-03-01), Chambers
patent: 3938738 (1976-02-01), Nagel et al.
patent: 4162970 (1979-07-01), Zlokarnik
patent: 4586280 (1986-05-01), Dane

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