Pyrotechnic device for a skateboard

Claim 1

A pyrotechnic device for use in connection with a skateboard adapted to travel over a relatively hard, abrasive surface and including a generally horizontal board member supported by front and rear wheels, the pyrotechnic device comprising: (a) a housing structure secured to the underside of the board member and including a lower surface adapted to engage the surface traveled by the skateboard when the board member is rotated about the axis of the rear wheel; (b) a bore formed in the housing structure that extends from the lower surface thereof; (c) a spark emitter disposed within the bore in the housing structure and having an exposed end lying flush with the lower surface of the housing structure so that the exposed end engages the surfaces traveled by the skateboard essentially simultaneously with the lower surface of the housing structure to produce a burst of sparks when the board is rotated about the axis of the rear wheel, wherein the housing structure is made of a relatively soft material that erodes when brought into engagement with the abrasive surface traveled by the skateboard so that the end of the spark emitter will be continually exposed.