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Generation of In-Line skates and skate-boards with safety "EDGING FRICTION CONTROL TM"

  • US 20040026984A1
  • Filed: 06/17/2003
  • Published: 02/12/2004
  • Est. Priority Date: 02/28/2000
  • Status: Active Grant
First Claim
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1. A wheel assembly comprising:

  • a roller member;

    roller bearing structure permitting the roller member to rotate about an axle with respect to a vertical axis;

    a spherical bearing constructed and arranged to permit the roller member to rotate about the axle at an angle with respect to the vertical axis; and

    , spring structure constructed and arranged to bias the roller member towards the vertical axis.

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