US Patent 7775534 Flexible skateboard with grinding tube
Patent 7775534 was granted and assigned to Razor Usa Llc on August, 2010 by the United States Patent and Trademark Office.
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A skateboard may include a pair of foot support boards connected by a torsion bar connecting element, a torsion bar cover tube mounted to the foot support boards and surrounding at least a portion of the torsion bar connecting element and an outer tube mounted for rotation around the torsion bar cover tube in response to contact with an obstacle. One or more bushings supporting the outer tube on the torsion bar cover for rotation. The skate board may include a tube mounted for rotation on a connecting element between the foot support areas. A method of skateboarding may include providing a skateboard having a longitudinal axis running between a pair of foot support areas and providing a tube mounted for rotation about the longitudinal axis between the foot support areas in response to contact with an obstacle.
US Patent 07775534 Flexible skateboard with grinding tube US Patent 7775534 Flexible skateboard with grinding tube
US Patent 07775534 Flexible skateboard with grinding tube
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