Patents by Inventor Paul F. Turner

Paul F. Turner 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: 4341227
    Abstract: Disclosed is a system for irradiating living bodies, or portions thereof, using electromagnetic radiation (EMR). A source or generator provides electromagnetic energy at a selected frequency, within an operational band width, via a coaxial cable to an applicator for radiation into living tissue. The source, cable, and applicator each have a characteristic impedance approximately equal to the average impedance of the living tissue over a broad frequency band, thus enabling efficient operation of the apparatus without using auxiliary impedance matching devices. The applicator is of a waveguide transmission line type enabling efficient transmission and radiation of the electromagnetic energy and further incorporates means for cooling surface portions of the living tissue during radiation thereof. Selective dielectric loading of the applicator enables shaping of the radiated power to a preselected distribution.
    Type: Grant
    Filed: June 14, 1979
    Date of Patent: July 27, 1982
    Assignee: BSD Corporation
    Inventor: Paul F. Turner
  • Patent number: 4271848
    Abstract: Apparatus for electromagnetic radiation of living tissue, such as human tissue, or tissue simulating matter, comprises an electromagnetic radiation source having a dynamic frequency range of at least about 5 to 1, and preferably 10 to 1. Electrically connected to the source by a coaxial cable is a broadband applicator adapted for emitting electromagnetic radiation into tissue and the like. Parallel plate type radiation launching portions of the applicator are configured to have a characteristic impedance, throughout the dynamic frequency range, approximately equal to the impedance of specimens to be irradiated, which for human tissue, between 50 MHz-2000 MHz, is approximately 50 ohms. A transition for interconnecting the coaxial cable to the parallel plate launching portion is configured to provide a relatively gradual coaxial to parallel plate transition at constant characteristic impedance throughout the dynamic frequency range.
    Type: Grant
    Filed: January 11, 1979
    Date of Patent: June 9, 1981
    Assignee: Bio Systems Design, Corp.
    Inventors: Paul F. Turner, Om P. Gandhi
  • Patent number: 4107624
    Abstract: A circuit for receiving an incoming RF signal incurring frequency drift and producing a local signal for tracking the incoming signal includes a phase-locked loop and means incorporated in the loop which compensate or correct for the frequency drift so as to maintain the loop locked on the incoming signal. The loop is defined by a phase detector, a DC amplifier and a voltage controlled oscillator connected in series. The correction means is coupled in parallel with the loop amplifier between the loop detector and amplifier at its one end and between the amplifier and a DC bias voltage supply terminal for the amplifier at its opposite end.
    Type: Grant
    Filed: July 18, 1977
    Date of Patent: August 15, 1978
    Assignee: Sperry Rand Corporation
    Inventor: Paul F. Turner