×

Generation of in-line skates and skate-boards wtih safety “edging friction control™”

  • US 6,637,827 B2
  • Filed: 02/14/2001
  • Issued: 10/28/2003
  • Est. Priority Date: 02/28/2000
  • Status: Expired due to Fees
First Claim
Patent Images

1. A wheel assembly comprising:

  • a roller member;

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

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

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

View all claims
  • 0 Assignments
Timeline View
Assignment View
    ×
    ×