Amusement device incorporating gas discharge tube

Electric lamp and discharge devices: systems – Special application

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315227R, 315236, 315248, 116202, 340691, 446485, 324158R, H01K 700, H05B 3700, H05B 4116, G08B 300

Patent

active

050897454

ABSTRACT:
An amusement device comprising a gas-filled plasma discharge tube; an electrode adjacent an end of the tube for coupling high-frequency, high-voltage energy into the gas in the plasma discharge tube; an ionization energy supply operably connectable to a source of electrcity for producing an adjustable high-frequency, high-voltage energy at an output thereof having an upper limit sufficient to ionize the gas in the plasma discharge tube without a ground return by utilizing the electrical capacity of the surroundings to provide a reactive impedance for plasma tube current to flow into, the electrode being operable connected to the output; and, a control circuit operably connected to the ionization energy supply for adjusting the level of the high-frequency, high-voltage energy at the output between levels causing ionization of the gas in the plasma discharge tube to occur in differing amounts as a function of a changing stimulus connected to an input thereof. There are embodiments as a light saber, an emotions meter, or the like, and a "Dancing Plasma Fire" device driven by an audio source. The preferred electrode capacitively couples to the discharge tube.

REFERENCES:
patent: 1654068 (1927-12-01), Blattner
patent: 1785070 (1930-12-01), Case
patent: 1790903 (1931-02-01), Craig
patent: 2437009 (1948-03-01), Warner
patent: 4282681 (1981-08-01), McCaslin
patent: 4431947 (1984-02-01), Ferriss et al.
patent: 4494554 (1985-01-01), Van Dyke et al.
patent: 4537203 (1985-08-01), Machida
patent: 4678450 (1987-07-01), Scolari et al.
patent: 4742278 (1988-05-01), Iannini
Ajemian "The New Level Meters" Dec. 1980, AUDIO, pp. 34-37.

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