Amusement devices – Illusion or stage device – Pyrotechnic display
Patent
1994-06-16
1996-08-13
Nguyen, Kien T.
Amusement devices
Illusion or stage device
Pyrotechnic display
472 65, 446 22, 431276, A63G 3100, A63J 2300
Patent
active
055450920
ABSTRACT:
A system and method for generating special effects showers of sparks for use in theme park shows and rides. A flint rod is biased with fluid pressure against a cutting wheel of this system. When a clutch is actuated for a brief predetermined time period, a constant high speed motor is operatively connected to the cutting wheel, rapidly rotating it. The rotating wheel cuts, ignites and discharges small portions of the flint rod biased thereagainst away therefrom in a stream of sparks. An air stream directs the stream of sparks out as a special effects shower of sparks. One embodiment of this system propels the spark stream out through a venturi nozzle. By changing the gas stream fluid pressure and/or the clutch connect time and/or the flint rod biasing pressure and/or the clutch connect/disconnect interval timing, the size and characteristics of the shower of sparks can be accurately controlled and altered as desired. It can be made to simulate showers of sparks produced in electrical shortings or those from metal-to-metal impacts. The position of the impact end of the flint rod relative to the cutting wheel can be easily adjusted to prolong the operating life of the wheel.
REFERENCES:
patent: 1653701 (1927-12-01), Guerard
patent: 1781516 (1930-11-01), Malkin
patent: 2198177 (1940-04-01), Pohlhaus
patent: 3377739 (1968-04-01), Michelman et al.
patent: 3556703 (1971-01-01), Florjancic
patent: 4231734 (1980-11-01), Burns
Bodden Christian P.
Johnson Steven A.
Nguyen Kien T.
The Walt Disney Company
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