Patents by Inventor Sten A. E. Ohlander

Sten A. E. Ohlander 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).

  • Energy feed system for a microwave oven
    Patent number: 4343976
    Abstract: An energy feed system for microwave ovens includes a substantially symmetrical planar conductor system of the microstrip-line type having a central feeding point where energy from a microwave source is applied to the conductor system. The feeding point is surrounded on all sides by a conducting plate from which a number, preferably four, radial plates extend. Openings are formed between the plates which widen outwardly. The radial plates are surrounded by at least one closed annular conductor which receives energy from the radial plates.
    Type: Grant
    Filed: March 19, 1980
    Date of Patent: August 10, 1982
    Assignee: U.S. Philips Corporation
    Inventors: Mansur A. Nasretdin, Sten A. E. Ohlander