Patents by Inventor Hugh W. Greene

Hugh W. Greene 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: 5801489
    Abstract: A plasma generating system uses three electrodes inside a chamber, connected to a low voltage three-phase AC supply. A high voltage AC plasma generator produces an ionized oscillator gas which is injected into the gap between the electrodes. A continuous arc is produced inside the chamber. The arc moves along the electrodes and then superheats and ionizes a working gas which is tangentially injected from a pneumatic ring.
    Type: Grant
    Filed: February 7, 1996
    Date of Patent: September 1, 1998
    Assignees: Paul E. Chism, Jr., Hugh W. Greene
    Inventors: Paul E. Chism, Jr., Hugh W. Greene, Philip G. Rutberg, Alexei A. Safronov, Vasili N. Shiriaev
  • Patent number: 5630915
    Abstract: A liquid decontamination method and apparatus uses a series of pulsed electrical arcs across electrodes placed within a liquid stream which passes through a decontamination module. Sufficient energy is delivered by a pulse generator to the electrodes whereby lethal ultraviolet radiation and mechanical shock waves are created by the arcs within the decontamination module. A plurality of modules can be operated in parallel or in series to vary the capacity of the apparatus. Gas is injected through one of the electrodes to facilitate the generation of arcs within the liquid.
    Type: Grant
    Filed: January 9, 1995
    Date of Patent: May 20, 1997
    Inventors: Hugh W. Greene, Paul E. Chism, Jr.
  • Patent number: 5464513
    Abstract: A water decontamination method and apparatus uses a series of pulsed electrical arcs across electrodes placed within a water stream which passes through a decontamination module. Sufficient energy is delivered by a pulse power unit to the electrodes whereby lethal ultraviolet radiation and mechanical shock waves are created by the arcs within the decontamination module. A plurality of modules can be operated in parallel or in series to vary the capacity of the apparatus.
    Type: Grant
    Filed: January 11, 1994
    Date of Patent: November 7, 1995
    Assignee: Scientific Utilization, Inc.
    Inventors: Vladislav L. Goriachev, Alexander N. Bratsev, Valeri N. Feduikovich, Philip G. Rutberg, Hugh W. Greene, Paul E. Chism, Jr.
  • Patent number: 4710912
    Abstract: An air cushion-optical data read head that includes an optical pick-up system for reading data stored on the walls of an engraved V-groove disc or record, air means for causing the read head to hover above the surface of the record, and air jet means for guiding the head about the V-groove of the record.
    Type: Grant
    Filed: June 2, 1986
    Date of Patent: December 1, 1987
    Inventors: Hugh W. Greene, James D. Holder, James A. Knaur
  • Patent number: 4594546
    Abstract: A passive voltmeter that measures pulses of high voltage by periodically charging a condensor through a spark gap. The frequency at which the spark gap breaks down is a function of the voltage being measured and is detected and displayed in volts. Radioactive material within the chamber is used to insure a constant breakdown voltage by supplying the necessary free electrons. This insures constant breakdown time for the arc with minimum jitter.
    Type: Grant
    Filed: March 12, 1984
    Date of Patent: June 10, 1986
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Hugh W. Greene, James D. Holder, Thomas G. Roberts
  • Patent number: 4514684
    Abstract: The monitor system consists of a voltage controlled oscillator for produc an acoustic wave whose frequency is proportional to the voltage being measured. An acoustic waveguide is used for transmitting the wave to an electrically isolated acoustic to electrical transducer. The output of the transducer is amplified and then displayed on an appropriate readout calibrated in volts.
    Type: Grant
    Filed: September 27, 1982
    Date of Patent: April 30, 1985
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Kenton L. Haynes, William P. Sherer, Hugh W. Greene, James D. Holder, Thomas G. Roberts
  • Patent number: 4229700
    Abstract: A buried reed, extra-short pulse width pulser is an extra fast rise and fall time short pulse width pulser with very high voltage output. A typical pulser may have a 10 picosecond rise and fall time, a 500 picosecond flat top time, and up to a 1000 volt output. The output impedance of the pulser is normally 50 ohms. A reed switch provides switching between a center conductor of a charged line and an output line to provide the output pulses. The reed switch is buried within the pulser forming an integral part of the center conductors.
    Type: Grant
    Filed: November 27, 1978
    Date of Patent: October 21, 1980
    Inventor: Hugh W. Greene