Patents Represented by Attorney Armand McMillan
  • Patent number: 6299850
    Abstract: A process for making carbon film or powder suitable for double capacitor electrodes having a capacitance of up to about 300 F/cm3 is disclosed. This is accomplished by treating in aqueous nitric acid for a period of about 5 to 15 minutes thin carbon films obtained by carbonizing carbon-containing polymeric material having a high degree of molecular directionality, such as polyimide film, then heating the treated carbon film in a non-oxidizing atmosphere at a non-graphitizing temperature of at least 350° C. for about 20 minutes, and repeating alternately the nitric acid step and the heating step from 7 to 10 times. Capacitors made with this carbon may find uses ranging from electronic devices to electric vehicle applications.
    Type: Grant
    Filed: March 16, 1999
    Date of Patent: October 9, 2001
    Assignee: The United States of America as represented by the Department of Energy
    Inventors: Daniel H. Doughty, Erhard T. Eisenmann
  • Patent number: 6229645
    Abstract: A Porro prism and a light polarizer are combined in a single optical element termed a Hendrix Prism. The design provides retro-reflection of incoming light of a predetermined polarization in a direction anti-parallel to the direction of light incidence, while reflecting undesired light, i.e., that having a polarization orthogonal to the predetermined polarization, from the surface of the light polarizer. The undesired light is reflected in a direction that does not interfere with the intended operation of the device in which the Hendrix Prism is installed yet provides feedback to the system in which it is used.
    Type: Grant
    Filed: January 28, 2000
    Date of Patent: May 8, 2001
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventor: James Lee Hendrix
  • Patent number: 6156975
    Abstract: End moldings for high-voltage cables are described wherein the dielectric insulator of the cable is heated and molded to conform to a desired shape. As a consequence, high quality substantially bubble-free cable connectors suitable for mating to premanufactured fittings are made. Disclosed is a method for making the cable connectors either in the field or in a factory, molds suitable for use with the method, and the molded cable connectors, themselves.
    Type: Grant
    Filed: August 17, 1998
    Date of Patent: December 5, 2000
    Assignee: The United States of America as represented by United States Department of Energy
    Inventor: Lars D. Roose
  • Patent number: 6155989
    Abstract: A syringe-like disposable cutaneous biopsy instrument equipped with a tubular blade at its lower end, and designed so that a vacuum is created during use, said vacuum serving to retain undeformed a plug of tissue cut from a patient's skin.
    Type: Grant
    Filed: June 25, 1999
    Date of Patent: December 5, 2000
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventor: Joseph Collins
  • Patent number: 6083781
    Abstract: A method for making compound semiconductor devices including the use of a p-type dopant is disclosed wherein the dopant is co-implanted with an n-type donor species at the time the n-channel is formed and a single anneal at moderate temperature is then performed. Also disclosed are devices manufactured using the method. In the preferred embodiment n-MESFETs and other similar field effect transistor devices are manufactured using C ions co-implanted with Si atoms in GaAs to form an n-channel. C exhibits a unique characteristic in the context of the invention in that it exhibits a low activation efficiency (typically, 50% or less) as a p-type dopant, and consequently, it acts to sharpen the Si n-channel by compensating Si donors in the region of the Si-channel tail, but does not contribute substantially to the acceptor concentration in the buried p region. As a result, the invention provides for improved field effect semiconductor and related devices with enhancement of both DC and high-frequency performance.
    Type: Grant
    Filed: October 1, 1997
    Date of Patent: July 4, 2000
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: John C. Zolper, Marc E. Sherwin, Albert G. Baca
  • Patent number: 5989748
    Abstract: The power loss of lithium/lithium ion battery cells is significantly reduced, especially at low temperatures, when about 1% by weight of an additive is incorporated in the electrolyte layer of the cells. The usable additives are organic solvent soluble cyanoethylated polysaccharides and poly(vinyl alcohol). The power loss decrease results primarily from the decrease in the charge transfer resistance at the interface between the electrolyte and the cathode.
    Type: Grant
    Filed: May 8, 1998
    Date of Patent: November 23, 1999
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventor: Ganesan Nagasubramanian
  • Patent number: 5872824
    Abstract: A heavy ion generator is used with a plasma desorption mass spectrometer to provide an appropriate neutron flux in the direction of a fissionable material in order to desorb and ionize large molecules from the material for mass analysis.The heavy ion generator comprises a fissionable material having a high n,f reaction cross section. The heavy ion generator also comprises a pulsed neutron generator that is used to bombard the fissionable material with pulses of neutrons, thereby causing heavy ions to be emitted from the fissionable material. These heavy ions impinge on a material, thereby causing ions to desorb off that material. The ions desorbed off the material pass through a time-of-flight mass analyzer, wherein ions can be measured with masses greater than 25,000 amu.
    Type: Grant
    Filed: August 8, 1996
    Date of Patent: February 16, 1999
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: David P. Fries, James F. Browning
  • Patent number: 5825496
    Abstract: There is provided by this invention an optical displacement sensor that utilizes a reflective target connected to a surface to be monitored to reflect light from a light source such that the reflected light is received by a photoelectric transducer. The electric signal from the photoelectric transducer is then imputed into electronic circuitry to generate an electronic image of the target. The target's image is monitored to determine the quantity and direction of any lateral displacement in the target's image which represents lateral displacement in the surface being monitored.
    Type: Grant
    Filed: August 29, 1996
    Date of Patent: October 20, 1998
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventor: Robert Edwin Lewis
  • Patent number: 5784424
    Abstract: A heavy ion generator is used with a plasma desorption mass spectrometer to provide an appropriate neutron flux in the direction of a fissionable material in order to desorb and ionize large molecules from the material for mass analysis.The heavy ion generator comprises a fissionable material having a high n,f reaction cross section. The heavy ion generator also comprises a pulsed neutron generator that is used to bombard the fissionable material with pulses of neutrons, thereby causing heavy ions to be emitted from the fissionable material. These heavy ions impinge on a material, thereby causing ions to desorb off that material. The ions desorbed off the material pass through a time-of-flight mass analyzer, wherein ions can be measured with masses greater than 25,000 amu.
    Type: Grant
    Filed: July 3, 1996
    Date of Patent: July 21, 1998
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: David P. Fries, James F. Browning
  • Patent number: 5729424
    Abstract: A solid electrolytic capacitor having a solid electrolyte comprising manganese dioxide dispersed in an aromatic polyamide capable of further cure to form polyimide linkages, the solid electrolyte being disposed between a first electrode made of valve metal covered by an anodic oxide film and a second electrode opposite the first electrode. The electrolyte autogenously produces water, oxygen, and hydroxyl groups which act as healing substances and is not itself produced pyrolytically. Reduction of the manganese dioxide and the water molecules released by formation of imide linkages result in substantially improved self-healing of anodic dielectric layer defects.
    Type: Grant
    Filed: September 27, 1995
    Date of Patent: March 17, 1998
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Donald J. Sharp, Pamela S. Armstrong, Janda Kirk G. Panitz
  • Patent number: 5573565
    Abstract: In the fabrication of igniters, actuators, detonators, and other pyrotechnic devices to be activated by a laser beam, an integral optical glass window is formed by placing a preform in the structural member of the device and then melting the glass and sealing it in place by heating at a temperature between the ceramming temperature of the glass and the melting point of the metal, followed by rapid furnace cooling to avoid devitrification. No other sealing material is needed to achieve hermeticity. A preferred embodiment of this type of device is fabricated by allowing the molten glass to flow further and form a plano-convex lens integral with and at the bottom of the window. The lens functions to decrease the beam divergence caused by refraction of the laser light passing through the window when the device is fired by means of a laser beam.
    Type: Grant
    Filed: June 17, 1994
    Date of Patent: November 12, 1996
    Assignee: The United States of America as represented by the Department of Energy
    Inventors: Rick D. Dalton, Daniel P. Kramer, Richard T. Massey, Damon A. Waker
  • Patent number: 5419819
    Abstract: The present invention provides a process for treating both cations and anions by using a self-regenerating, multi-ionic exchange resin column system which requires no separate regeneration steps. The process involves alternating ion-exchange chromatography for cations and anions in a multi-ionic exchange column packed with a mixture of cation and anion exchange resins. The multi-ionic mixed-charge resin column works as a multi-function column, capable of independently processing either cationic or anionic exchange, or simultaneously processing both cationic and anionic exchanges. The major advantage offered by the alternating multi-function ion exchange process is the self-regeneration of the resins.
    Type: Grant
    Filed: March 17, 1994
    Date of Patent: May 30, 1995
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventor: Woo K. Park
  • Patent number: 5266499
    Abstract: An apparatus and method for detecting antibodies specific to non-protein antigens. The apparatus is an immunological plate containing a plurality of plastic projections coated with a non-protein material. Assays utilizing the plate are capable of stabilizing the non-protein antigens with detection levels for antibodies specific to the antigens on a nanogram level. A screening assay with the apparatus allows for early detection of exposure to non-protein materials. Specifically metallic elements are detected.
    Type: Grant
    Filed: February 25, 1992
    Date of Patent: November 30, 1993
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Charles W. Barrick, Sara M. Clarke, Carl W. Nordin
  • Patent number: 5204381
    Abstract: Hybrid sol-gel materials comprise silicate sols cross-linked with linear polysilane, polygermane, or poly(silane-germane). The sol-gel materials are useful as optical identifiers in tagging and verification applications and, in a different aspect, as stable, visible light transparent non-linear optical materials. Methyl or phenyl silicones, polyaryl sulfides, polyaryl ethers, and rubbery polysilanes may be used in addition to the linear polysilane. The linear polymers cross-link with the sol to form a matrix having high optical transparency, resistance to thermooxidative aging, adherence to a variety of substrates, brittleness, and a resistance to cracking during thermal cycling.
    Type: Grant
    Filed: April 20, 1992
    Date of Patent: April 20, 1993
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventor: John M. Zeigler
  • Patent number: 5202203
    Abstract: Chloromethyl chlorosulfate (CMCS) is used as a passive film growth inhibitor in electrochemical cells to minimize voltage delay and low-voltage discharge. Film growth on lithium anodes is significantly diminished when CMCS is added to SOCl.sub.2 and SO.sub.2 Cl.sub.2 electrolytes of lithium batteries. The CMCS also has the effect of extending the shelf-life of Li/SOCl.sub.2 and Li/SO.sub.2 Cl.sub.2 batteries.
    Type: Grant
    Filed: April 5, 1991
    Date of Patent: April 13, 1993
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventor: Frank M. Delnick
  • Patent number: 5177045
    Abstract: A series of new crystalline titanates (CT) are shown to have considerable potential as catalyst supports. For Pd supported catalyst, the catalytic activity for pyrene hydrogenation was substantially different depending on the type of CT, and one was substantially more active than Pd on hydrous titanium oxide (HTO). For 1-hexene hydrogenation the activities of the new CTs were approximately the same as for the hydrous metal oxide supports.
    Type: Grant
    Filed: August 28, 1991
    Date of Patent: January 5, 1993
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Rayford G. Anthony, Robert G. Dosch
  • Patent number: 5147841
    Abstract: A method is provided for preparing catalytic elemental metal colloidal particles (e.g. gold, palladium, silver, rhodium, iridium, nickel, iron, platinum, molybdenum) or colloidal alloy particles (silver/iridium or platinum/gold). A homogeneous inverse micelle solution of a metal salt is first formed in a metal-salt solvent comprised of a surfactant (e.g. a nonionic or cationic surfactant) and an organic solvent. The size and number of inverse micelles is controlled by the proportions of the surfactant and the solvent. Then, the metal salt is reduced (by chemical reduction or by a pulsed or continuous wave UV laser) to colloidal particles of elemental metal. After their formation, the colloidal metal particles can be stabilized by reaction with materials that permanently add surface stabilizing groups to the surface of the colloidal metal particles. The sizes of the colloidal elemental metal particles and their size distribution is determined by the size and number of the inverse micelles.
    Type: Grant
    Filed: November 23, 1990
    Date of Patent: September 15, 1992
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventor: Jess P. Wilcoxon
  • Patent number: 5143531
    Abstract: A glass-to-glass hermetic sealing technique is disclosed which can be used to splice lengths of glass fibers together. A solid glass preform is inserted into the cavity of a metal component which is then heated to melt the glass. An end of an optical fiber is then advanced into the molten glass and the entire structure cooled to solidify the glass in sealing engagement with the optical fiber end and the metal cavity. The surface of the re-solidified glass may be machined for mating engagement with another component to make a spliced fiber optic connection. The resultant structure has a helium leak rate of less than 1.times.10.sup.-8 cm.sup.3 /sec.
    Type: Grant
    Filed: April 10, 1991
    Date of Patent: September 1, 1992
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventor: Daniel P. Kramer
  • Patent number: 5135603
    Abstract: A process for growing single crystals from an amorphous substance that can undergo phase transformation to the crystalline state in an appropriate solvent. The process is carried out in an autoclave having a lower dissolution zone and an upper crystallization zone between which a temperature differential (.DELTA.T) is maintained at all times. The apparatus loaded with the substance, solvent, and seed crystals is heated slowly maintaining a very low .DELTA.T between the warmer lower zone and cooler upper zone until the amorphous substance is transformed to the crystalline state in the lower zone. The heating rate is then increased to maintain a large .DELTA.T sufficient to increase material transport between the zones and rapid crystallization. .alpha.-Quartz single crystal can thus be made from fused quartz in caustic solvent by heating to 350.degree. C. stepwise with a .DELTA.T of 0.25.degree.-3.degree. C., increasing the .DELTA.T to about 50.degree. C.
    Type: Grant
    Filed: March 11, 1982
    Date of Patent: August 4, 1992
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventor: Richard J. Baughman
  • Patent number: 5130397
    Abstract: Hybrid sol-gel materials comprise silicate sols cross-linked with linear polysilane, polygermane, or poly(silane-germane). The sol-gel materials are useful as optical identifiers in tagging and verification applications and, in a different aspect, as stable, visible light transparent non-linear optical materials. Methyl or phenyl silicones, polyaryl sulfides, polyaryl ethers, and rubbery polysilanes may be used in addition to the linear polysilane. The linear polymers cross-link with the sol to form a matrix having high optical transparency, resistance to thermooxidative aging, adherence to a variety of substrates, brittleness, and a resistance to cracking during thermal cycling.
    Type: Grant
    Filed: February 13, 1990
    Date of Patent: July 14, 1992
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventor: John M. Zeigler