Patents Assigned to Roberts-Gordon Appliance Corporation
  • Insert for a radiant heating system
    Patent number: 3980069
    Abstract: An insert is adapted to be arranged within the marginal end portion of a heat-radiating tube. The insert has an outer surface comprising an alternating series of peaks and valleys. The insert serves to insulate the tube marginal portion from the direct heat of a flame directed into and confined within the insert. The outer surface of the insert defines with the tube inner surface, a plurality of passageways. In use, air drawn into the tube through these passageways is preheated, and subsequently directed to oxidize the flame tip.
    Type: Grant
    Filed: September 22, 1975
    Date of Patent: September 14, 1976
    Assignee: Roberts-Gordon Appliance Corporation
    Inventors: Eugene W. Butlak, Robert G. Budden