Patents Assigned to Donald W. Barnes
  • Heated ice-melting blocks for steps
    Patent number: 5550350
    Abstract: A device and method for melting ice and snow from walkways and steps is described. The device includes a rigid block of heat-conducting plastic suitable for mounting on steps. An electrical heating element provides heat. The heat is distributed to the entire block and melts the snow or ice on the surface.
    Type: Grant
    Filed: November 17, 1994
    Date of Patent: August 27, 1996
    Assignees: Donald W. Barnes, Dennis N. Dunham
    Inventor: Donald W. Barnes