Patents by Inventor Christian Otto Hemmi

Christian Otto Hemmi 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).

  • Patent number: 4100548
    Abstract: A bifocal pillbox antenna system is disclosed comprising a controller means providing control voltages and sequential switching signals to scan circuits. The scan circuits provide RF energy selectively to feed elements of a contoured feed array for radiation in a waveguide means. The waveguide means includes a waveguide and a pair of reflectors specially shaped to provide a pair of spaced focal points. The energy radiating from the feed elements with a non-linear phase distribution is guided to the specially shaped reflectors and reflected with a nearly linear phase distribution for transmission.
    Type: Grant
    Filed: September 30, 1976
    Date of Patent: July 11, 1978
    Assignee: The United States of America as represented by the Secretary of the Department of Transportation
    Inventors: Christian Otto Hemmi, Oren Byrl Kesler, Richard Thomas Dover