Patents by Inventor Malcolm Chapman

Malcolm Chapman has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Roller skate attachment
    Patent number: 5853179
    Abstract: An in-line skate attachment has a row of in-line wheels (11) supported in a flexible carriage (12), itself supported on a rigid carrier (7). The carrier can be attached to or form part of a skating boot (13). The flexibility of the carrier allows the wheels to move radially to suit skating conditions, e.g., a speed mode in which the wheel axes are in a plane and a turning mode in which the axes of the end wheels are lifted out of that plane.
    Type: Grant
    Filed: July 22, 1997
    Date of Patent: December 29, 1998
    Inventor: Malcolm Chapman