Patents by Inventor Nelson B. Tharp

Nelson B. Tharp 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).

  • Airborne transmitting antenna and method for deploying same
    Patent number: 4730194
    Abstract: The present invention relates to an airborne trailing cable-antenna which is multi-sectional. The cable-antenna comprises an electromagnetic radiating portion for the transmission of electromagnetic energy and a non-radiating portion which because of its weight, length, density and other aerodynamic characteristics provides the physical length necessary for the propagation of the radiated electromagnetic energy in a vertical polarized plane. This improved, multi-sectional, trailing, airborne cable-antenna facilitates the transmission of electromagnetic energy in a vertical polarized plane at higher frequencies not previously possible.
    Type: Grant
    Filed: June 20, 1985
    Date of Patent: March 8, 1988
    Assignee: Westinghouse Electric Corp.
    Inventor: Nelson B. Tharp
  • Method and system for radiating RF power from a trailing wire antenna
    Patent number: 4335469
    Abstract: A trailing wire antenna coupling and control method for providing maximum voltage limited power output from power amplifiers of a high power low frequency RF transmitter system while varying the inductance of the coupling circuit to present a high resistance load having practically zero reactance to the power amplifiers, all during extension and retraction of the antenna toward and from its optimum length, as well as at the optimum length.
    Type: Grant
    Filed: June 18, 1980
    Date of Patent: June 15, 1982
    Assignee: Westinghouse Electric Corp.
    Inventors: Nelson B. Tharp, Harry F. Hartley
  • Hardened electromagnetic wave energy sensor
    Patent number: 4017863
    Abstract: Hardening of an electromagnetic wave sensor is accomplished by housing it low ground in a protective reinforced concrete structure that supports a cage of insulated conductors that has an interior portion that partially surrounds the sensor so as to shield it from electrical disturbances and an exterior portion that interacts with electromagnetic wave energy present at the ground level and improves the signal couplng to the sensor.
    Type: Grant
    Filed: March 10, 1976
    Date of Patent: April 12, 1977
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Nelson B. Tharp, John W. Henry, George F. Leydorf