Patents Assigned to Intermountain Thermafloor, Inc.
  • Patent number: 4581522
    Abstract: An electrical heating system for use in heating surfaces. A heating element is constructed of mesh screen comprised of small gauge wires which are spaced in a close mesh arrangement such that the total surface area of the wires is substantially equal to or greater than the adjacent area of the surface to be heated. The longitudinal wires are electrically conductive and are preferably made of a nonferrous metal and the transverse wires are coated with an insulating material. The heating element is positioned substantially parallel to and adjacent the surface to be heated. The heating system includes electronic circuitry which essentially eliminates transmission of power surges, voltage spikes and chatter when the heating system is connected to an alternating current power source. The heating system also includes protective circuits and devices for preventing injury or damage due to transformer overheating, or due to under-current or over-current conditions.
    Type: Grant
    Filed: November 23, 1983
    Date of Patent: April 8, 1986
    Assignee: Intermountain Thermafloor, Inc.
    Inventor: Charles H. Graham