Patents by Inventor Richard H. Turrin

Richard H. Turrin 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).

  • Hybrid mode waveguide and feedhorn antennas
    Patent number: 4231042
    Abstract: The present invention relates to a hybrid mode waveguide or feedhorn antenna for transforming the TE.sub.11 mode into the HE.sub.11 mode. The waveguide or feedhorn comprises a circular waveguide including a tubular section at the TE.sub.11 mode entrance port changing in the antenna configuration to a conical section that flares outward to the feedhorn mouth, and a spiro-helical projection bonded to the interior surface of the waveguide. In a first arrangement, the spiro-helical projection comprises an initially flattened dielectrically coated wire that gradually returns to a rounded configuration in closely spaced helical turns after which the spacings between turns gradually increase linearly in the tubular section and then continue with uniform spacings in the conical section.
    Type: Grant
    Filed: August 22, 1979
    Date of Patent: October 28, 1980
    Assignee: Bell Telephone Laboratories, Incorporated
    Inventor: Richard H. Turrin