US Patent:
20050127630, Jun 16, 2005
Inventors:
James Kuhlman - Scottsdale AZ, US
Francisco Cablayan - Carpinteria CA, US
International Classification:
B62M001/00
Abstract:
A spark-emitting device for a skateboard. The spark-emitting device includes a housing and a plurality of misch metal barrels inserted into a housing and spaced apart so that the wear rate of the housing in the misch metal barrels is compatible and a desired sparking effect is achieved.