Patents Assigned to WDRM Patent Co.
  • Suspension and braking system for a tandem wheeled skate
    Patent number: 5135244
    Abstract: A tandem roller skate employing a suspension system by which the tandem positioned wheels are articulated relative to each other through a truck and beam arrangement to absorb loads imposed on any one wheel and transmit the load to the other of the wheels. A braking arrangement is formed by a leaf spring positioned to selectively engage either a forward or rearward wheel of the skate to exert a variable frictional load impeding rotational movement.
    Type: Grant
    Filed: April 22, 1991
    Date of Patent: August 4, 1992
    Assignee: WDRM Patent Co.
    Inventor: William D. Allison