Patents Represented by Attorney Roy E. Gordon

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  • Method of transforming a passive ferromagnetic material into a permanent magnet
    Patent number: 4917736
    Abstract: A passive ferromagnetic material is transformed into a permanent magnet with more than double the existing energy product or "strength" by encasing a bar of the passive ferromagnetic material in an annular shell of superconductive material at a temperature above the transition temperature of the superconductive material, placing the encased ferromagnetic material into an axial magnetic field providing sufficient oersteds to magnetize the passive ferromagnetic material thereby enclosing a large amount of flux in the superconducting shell, lowering the temperature to below the transition temperature of the superconductive material whereupon all of the enclosed flux is permanently trapped, and removing the axial magnetic field.
    Type: Grant
    Filed: March 20, 1989
    Date of Patent: April 17, 1990
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventor: Herbert A. Leupold
  • Method of making a long life high current density cathode from tungsten and iridium powders using a mixture of barium peroxide and a coated emitter as the impregnant
    Patent number: 4911626
    Abstract: A long life high current density cathode is made from a mixture of tungsten nd iridium powders by processing the mixture of powders with an activator into a porus billet, and then impregnating the billet with a mixture of barium peroxide and a coated emitter by firing the billet in a dry hydrogen furnace at a temperature at which the impregnant melts.
    Type: Grant
    Filed: November 20, 1989
    Date of Patent: March 27, 1990
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Louis E. Branovich, Bernard Smith, Gerard L. Freeman, Donald W. Eckart
  • Asynchronous marx generator utilizing photo-conductive semiconductor switches
    Patent number: 4900947
    Abstract: A Marx high voltage generator with a fast rise time. Photoconductive semiconductor switches are sequentially triggered by a single laser via fiber optic bundles of different lengths. The switches serve to series connect a group of charged capacitors. Output is taken from the last capacitor which receives the voltage accumulated on all of the previous capacitors. Proper timing of the activation of each switch produces a fast rise time.
    Type: Grant
    Filed: May 2, 1988
    Date of Patent: February 13, 1990
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Maurice Weiner, Anderson H. Kim, Lawrence J. Bovino
  • Method of making a cathode from tungsten and iridium powders using a reaction product from reacting barium peroxide with an excess of tungsten as the impregnant
    Patent number: 4895699
    Abstract: A cathode is made from a mixture of tungsten and iridium powders using a ction product formed from reacting barium peroxide with an excess of tungsten as the impregnant.
    Type: Grant
    Filed: August 24, 1989
    Date of Patent: January 23, 1990
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Louis E. Branovich, Gerard L. Freeman, Bernard Smith, Donald W. Eckart
  • Method of overcoating a high current density cathode with rhodium
    Patent number: 4894257
    Abstract: A tungsten-iridium billet is impregnated with a chemical mixture of barium xide, strontium oxide, and aluminum oxide, the impregnated billet heated, and the surface of the impregnated billet desired for emission exposed to an overcoating of rhodium.
    Type: Grant
    Filed: July 5, 1988
    Date of Patent: January 16, 1990
    Assignee: The United States of America as represented by the Secretary of America
    Inventors: Bernard Smith, Gerard L. Freeman, Louis E. Branovich
  • Method of using a ferromagnet material having a high permeability and saturation magnetization at low temperatures
    Patent number: 4894360
    Abstract: A ferromagnet material having a high permeability and saturation magnetizon at low temperatures is used to induce superconducting currents in a ring of a superconducting material where the ferromagnet material has a lower transition temperature than the superconductive material.
    Type: Grant
    Filed: May 19, 1989
    Date of Patent: January 16, 1990
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventor: Herbert A. Leupold
  • Thin film all polymer capacitor and method of making
    Patent number: 4891733
    Abstract: An all polymer, electrochemically formed, thin film capacitor is provided thout use of any metal foil and found to yield reasonable capacitance values. The capacitor includes an electrochemically formed insulating polymer sandwiched between two electrochemically formed conductive polymers.
    Type: Grant
    Filed: May 11, 1989
    Date of Patent: January 2, 1990
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventor: Robert J. Mammone
  • Method of making a multidimensional quantum-well array
    Patent number: 4883769
    Abstract: Multidimensional quantum-well arrays are made by electron-beam lithographic atterning, followed by solid-state diffusion.
    Type: Grant
    Filed: August 18, 1988
    Date of Patent: November 28, 1989
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Thomas R. Au Coin, Walter D. Braddock IV, Gerald J. Iafrate
  • Method of making a cathode from tungsten and aluminum powders
    Patent number: 4872864
    Abstract: A cathode is made from a mixture of tungsten and aluminum powders.
    Type: Grant
    Filed: February 23, 1989
    Date of Patent: October 10, 1989
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Louis E. Branovich, Bernard Smith, Gerard L. Freeman, Donald W. Eckart
  • Method of making a crystal oscillator desensitized to accelerationfields
    Patent number: 4871986
    Abstract: An oscillator and a resonator included in the oscillator are operated at a requency that is not the resonator frequency but that is off resonance at a frequency where the resonator has a minimum acceleration sensitivity and the desired oscillator output frequency is then electronically produced using electronic frequency synthesis techniques.
    Type: Grant
    Filed: November 4, 1988
    Date of Patent: October 3, 1989
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventor: Arthur Ballato
  • Magnesium/manganese dioxide electrochemical cell
    Patent number: 4869980
    Abstract: A magnesium/manganese dioxide electrochemical cell that has been stored fowing partial usage is improved by increasing the cathode moisture content at the time of making the cell to reduce the self discharge and increase the operating capacity after the cell has been stored following partial usage.
    Type: Grant
    Filed: November 10, 1988
    Date of Patent: September 26, 1989
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Louis P. Jarvis, Michael T. Brundage, Terrill B. Atwater
  • Method of making a long life high current density cathode from tungsten and iridium powders using a low melting point impregnant
    Patent number: 4863410
    Abstract: A long life high current density cathode is made from a mixture of tungsten nd iridium powders by processing the mixture of powders with an activator into a porous billet, and then impregnating the billet with a low melting point impregnant by firing the billet in a dry hydrogen furnace at a temperature at which the impregnant melts.
    Type: Grant
    Filed: July 21, 1988
    Date of Patent: September 5, 1989
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Louis E. Branovich, Bernard Smith, Gerard L. Freeman, Donald W. Eckart
  • Method of making a millimeter wave monolithic integrated circuit
    Patent number: 4861426
    Abstract: A method is provided of making a millimeter wave monolithic integrated ciit that allows for device isolation during epitaxial growth and integral heat sink with supporting circuitry on the substrate.
    Type: Grant
    Filed: January 23, 1989
    Date of Patent: August 29, 1989
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventor: Arthur Paolella
  • Alkaline earth-oxyhalide electrochemical cell for low temperature use
    Patent number: 4842967
    Abstract: An alkaline earth-oxyhalide electrochemical cell is improved in its low teratures operation by including bromine in the electrolyte of the cell.
    Type: Grant
    Filed: May 20, 1988
    Date of Patent: June 27, 1989
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Michael Binder, Charles W. Walker, Jr.
  • Method of making a cathode from tungsten and iridium powders using a barium iridiate formed from barium peroxide and iridium oxide as the impregnant
    Patent number: 4840767
    Abstract: A cathode is made from a mixture of tungsten and iridium powders using a ium iridiate formed from barium peroxide and iridium oxide as the impregnant.
    Type: Grant
    Filed: October 3, 1988
    Date of Patent: June 20, 1989
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Louis E. Branovich, Gerard L. Freeman, Bernard Smith, Donald W. Eckart
  • Method of making an acceleration hardened resonator
    Patent number: 4836882
    Abstract: An acceleration hardened resonator is made by a method including the steps f:(A) manufacturing and mounting the resonator,(B) performing acceleration tests to determine the acceleration sensitivity,(C) changing the interaction of the motional distribution with the stress field of the resonator in order to reduce the acceleration sensitivity, and(D) repeating steps (B) and (C) until a minimal acceleration sensitivity is obtained.
    Type: Grant
    Filed: September 12, 1988
    Date of Patent: June 6, 1989
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventor: Arthur Ballato
  • Method of making a ferrite element
    Patent number: H639
    Abstract: A ferrite element for millimeter-wave ferrite control devices is made by -plasma-spraying ferrite material into a mold type cavity having the configuration of the desired ferrite element.
    Type: Grant
    Filed: May 2, 1988
    Date of Patent: June 6, 1989
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Richard A. Stern, Richard W. Babbitt
  • High energy optically controlled kilovolt semiconductor switch
    Patent number: H695
    Abstract: A high energy, optically controlled kilovolt semiconductor switch is provd including a bulk piece of high resistivity semiconductor for illumination by a high speed laser, said semiconductor having a thick highly doped epitaxial layer of P+ impurity grown on one side of the semiconductor, and a thick highly doped epitaxial layer of N+ impurity grown on the opposite side of the semiconductor with metallic electrodes deposited on the respective epitaxial layers using standard ohmic contact procedures.
    Type: Grant
    Filed: October 23, 1987
    Date of Patent: October 3, 1989
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Maurice Weiner, Lawrence J. Bovino, Terence Burke, Anderson H. Kim
  • Lithium electrochemical cell containing diethylcarbonate as an electrolyte solvent additive
    Patent number: H723
    Abstract: An electrochemical cell comprising lithium as the anode, the lithium intelating compound Li.sub.x CoO.sub.2 (O<X<1) as the cathode, and a solution of a lithium salt in a mixed organic solvent of methylformate and diethylcarbonate as the electrolyte.
    Type: Grant
    Filed: July 6, 1988
    Date of Patent: January 2, 1990
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Edward J. Plichta, Steven M. Slane
  • Method of making a ferrite circulator
    Patent number: H781
    Abstract: In the manufacture of a ferrite circulator, a ferrite material is introdu into the cavity area of a microstrip circuit or substrate by arc plasma spraying, thus eliminating any chance of gaps between ferrite material and microstrip circuit material.
    Type: Grant
    Filed: March 21, 1988
    Date of Patent: May 1, 1990
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Richard A. Stern, Richard W. Babbitt