Patents by Inventor Philip H. Duda

Philip H. Duda 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).

  • Directional antenna for long range T.V. signal reception
    Patent number: 4290069
    Abstract: T.V. reception from transmitting stations located beyond the range commonly covered by T.V. receivers using conventional antennas is achieved by means of a highly directional bi-conical antenna structure that accommodates both VHF and UHF signals. Two truncated conductive cone antenna elements are mechanically connected at their apexes to the ends of an r.f. coil to provide the bi-conical antenna structure. The structure is horizontally positioned and rotatable for alignment with a desired station for optimum reception. A monopole antenna element is center tapped to the r.f. coil and the television UHF antenna lead is connected to the r.f. coil. The VHF antenna lead is connected to the bi-conical antenna structure.
    Type: Grant
    Filed: March 25, 1980
    Date of Patent: September 15, 1981
    Inventor: Philip H. Duda