Patents Assigned to Ball-skate AG
  • Roller skate
    Patent number: 6491308
    Abstract: A roller skate which includes a frame, a structure for fixing the frame to a person's foot, and at least two balls, which are freely rotatably supported by concave rollers. Axes of rotation of the rollers extend in a horizontal direction, transversely to the longitudinal direction of the frame. A roller is located between the two balls which are arranged side by side. The roller bears against both balls during operation.
    Type: Grant
    Filed: January 22, 2001
    Date of Patent: December 10, 2002
    Assignee: Ball-skate AG
    Inventor: Wilhelmus Stefanus Antonius Maria Bakx