Patents Assigned to Denel (PTY) Limited T/A Naschem
  • Heating tile
    Patent number: 5451743
    Abstract: Heating tiles have electrical resistance wires on their under surfaces which are covered with a non-conducting sheet, adjacent tiles being physically and electrically connected to provide any chosen area for heating such as the bottom of a bird cage, kennel or for heating blankets.
    Type: Grant
    Filed: November 17, 1992
    Date of Patent: September 19, 1995
    Assignee: Denel (PTY) Limited T/A Naschem
    Inventor: Johannes J. du Preez