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| Number | Title | Issue Date |
| 6821181 | Amusement device with sparking means An amusement device with sparking means comprises a central housing which encapsulates a power means. An axle support is located at a bottom portion of the housing, functioning to allow an axle to extend horizontally therethrough. A plurality of wheels are rigidly a... | 11/23/2004 |
| 6325689 | Spinning hat pyrotechnic entertainment product The pyrotechnic entertainment product has an upright spindle that may be pushed into the ground for support until a coil in the spindle engages the top surface of the ground. The image of an upright dancing bull or other creature is secured to the spindle... | 12/04/2001 |
| 5545092 | Special effects spark generating system 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, ... | 08/13/1996 |
| 5531623 | Toy welding apparatus with sparking mechanism A toy welding apparatus includes a spin welding mechanism which is operative for welding thermoplastic articles together utilizing a rotating thermoplastic rod. The apparatus further includes a sparking mechanism for producing sparks during operation of t... | 07/02/1996 |
| 5525085 | Sparking toy vehicle and launcher therefore A toy includes a toy vehicle, a launching assembly, and a rotatable sparking mechanism for generating sparks before the vehicle is launched from the launching assembly. In a preferred embodiment, the launching assembly includes a base track having a rack ... | 06/11/1996 |
| 5470267 | Spark producing mechanism A spark producing mechanism for a toy includes an at least partially transparent housing, a rotatable abrasive element in the housing and a motor for rotating the abrasive element. The mechanism further includes at least one flint element which is loosely... | 11/28/1995 |
| 5021069 | Method of effecting a bioreaction A bioreaction is affected by oxygenating a liquid/solids mixture containing a micro-organism to enable the bioreaction to proceed, wherein the said mixture is confined in a reaction vessel and circulated around a loop, the loop including a column in which... | 06/04/1991 |
| 4834407 | Pyrotechnic device for a skateboard A pyrotechnic device is disclosed which mounts to the underside of a skateboard. When frictionally engaged with an abrasive surface traveled by the skateboard, the pyrotechnic device emits sparks so as to accentuate stunts being performed by the user.... | 05/30/1989 |
| 4754199 | Self contained gas discharge display device A gas discharge apparatus includes a discharge chamber including a transparent dome portion and an electrode-including base portion, which together enclose an ionizable gas. A cup-shaped base member is affixed at its periphery to the edge of the base port... | 06/28/1988 |
| 4286806 | Roller skating spark generator A spark-generating mechanism for mounting on, and for use in combination with, a roller skate or roller skateboard. The mechanism includes a support bracket adapted to be attached to the skating device, to carry rotatably a grindstone wheel between two la... | 09/01/1981 |
