Patents by Inventor Anton K/u/ pper

Anton K/u/ pper has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Circuitry for control of the temperature of a heating element adapted to be contacted by a material to be heated
    Patent number: 4668851
    Abstract: A circuit arrangement for control of the temperature of a heating element adapted for contact by a material to be heated includes a transformer wherein the secondary winding is a metal ring which is the heating element with a temperature detection winding provided on the core of the transformer. An electronic switch and current sensing means are connected to the primary. A comparator, which receives input signals from the current sensing means and temperature detection winding, is operatively connected to the electronic switch to control its operation.
    Type: Grant
    Filed: September 6, 1985
    Date of Patent: May 26, 1987
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Anton K/u/ pper