Patents Examined by Michael F. Esposito
  • Patent number: 4177321
    Abstract: A grown crystal structure comprises a single crystal of semiconductive material having a given lattice constant grown on a spinel crystal substrate having a different lattice constant. A substance is added to one or both of the crystals and has suitable properties relative to the crystals to effectively reduce lattice strains developed in the grown crystal structure due to mismatch of the lattice constants of both crystals.
    Type: Grant
    Filed: May 18, 1978
    Date of Patent: December 4, 1979
    Assignee: Semiconductor Research Foundation
    Inventor: Jun-ichi Nishizawa
  • Patent number: 4177322
    Abstract: The ability of high voltage insulating devices, such as electrical transmission line suspension insulators, to resist the development of excessive leakage currents is improved by coating the surface with specific silicone fluids.
    Type: Grant
    Filed: April 28, 1978
    Date of Patent: December 4, 1979
    Assignee: Dow Corning Corporation
    Inventors: Gary R. Homan, Chi-Long Lee
  • Patent number: 4177318
    Abstract: A graphite electrode for use in spectroscopic analysis in which at least the region of the electrode intended for contact with the material to be analyzed has a layer comprising the heat reaction product of graphite with a salt of a refractory metal and a salt of an alkali earth metal.
    Type: Grant
    Filed: July 25, 1977
    Date of Patent: December 4, 1979
    Assignee: British Steel Corporation
    Inventor: Ernald V. Williams
  • Patent number: 4176029
    Abstract: A process for forming subminiature bores through very thin layers of insulative material disposed between spaced electrical conductors permits the joining of the conductors by a further conductor of microscopic cross section whose dimensions are readily controlled. The method provides reliable reproduction of weak link conductors for employment in applications such as Josephson superconductive devices.
    Type: Grant
    Filed: March 2, 1978
    Date of Patent: November 27, 1979
    Assignee: Sperry Rand Corporation
    Inventor: Don W. Jillie, Jr.
  • Patent number: 4175144
    Abstract: An electrode for a spark discharge in a distributor is surface treated by using a spray coating process so as to provide the electrode with a surface layer of an electrically high resistive material, e.g. CuO, which surface layer further includes a predetermined percentage of refractory and electrical insulating material, e.g. Al.sub.2 O.sub.3, SiO.sub.2 or MgO.multidot.Al.sub.2 O.sub.3. A distributor having one such treated electrode for the distributor rotor and/or such treated electrodes for stationary terminals can exhibit stably-suppressed noise for over a long period of time.
    Type: Grant
    Filed: December 19, 1977
    Date of Patent: November 20, 1979
    Assignee: Toyota Jidosha Kogyo Kabushiki Kaisha
    Inventors: Osamu Hori, Katsumi Kondo
  • Patent number: 4175160
    Abstract: The disposition of an array of color phosphor dots on a color cathode ray tube faceplate by conventional photo deposition techniques is facilitated by first coating the individual phosphor particles with polyvinyl alcohol modified with an amino acid such as glutamic or aspartic acid.
    Type: Grant
    Filed: June 22, 1978
    Date of Patent: November 20, 1979
    Assignee: GTE Sylvania Incorporated
    Inventor: Clarence D. Vanderpool
  • Patent number: 4173683
    Abstract: A method of manufacturing a semiconductor device having a passivating overcoat of insulating material disposed thereover comprises treating the overcoat with a silane solution prior to encapsulating the device.
    Type: Grant
    Filed: April 6, 1978
    Date of Patent: November 6, 1979
    Assignee: RCA Corporation
    Inventor: Robert B. Comizzoli
  • Patent number: 4173660
    Abstract: A thermoluminescent phosphor comprising LiF doped with boron and magnesium is produced by diffusion of boron into a conventional LiF phosphor doped with magnesium. Where the boron dopant is made to penetrate only the outer layer of the phosphor, it can be used to detect shallowly penetrating radiation such as tritium beta ays in the presence of a background of more penetrating radiation.
    Type: Grant
    Filed: July 13, 1978
    Date of Patent: November 6, 1979
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Jerome B. Lasky, Paul R. Moran
  • Patent number: 4173663
    Abstract: Metallic articles, for instance, ferrous strips are metallized, for instance, zinc coated by passing the heated article through a coating chamber and applying thereto a continuous stream of the molten coating metal so as to uniformly and evenly metallize said article. Thereafter, excess molten coating metal is removed from the coated article by hot gas blasting and the hot gas blasted article leaving the coating chamber is immediately cooled. Wiping means may be provided before applying the molten coating metal so as to deflect any molten coating metal dropping from the metallic article passing therethrough, while rollers may be arranged between the coating metal applying means and the hot gas blasting means. Said rollers serve to remove the major part of excess coating metal from the coated metallic article and to stabilize movement of the metallic article passing through the coating chamber.
    Type: Grant
    Filed: July 14, 1976
    Date of Patent: November 6, 1979
    Inventor: Theodore Bostroem
  • Patent number: 4173662
    Abstract: A process for forming a fuel cell electrolyte matrix on the surface of an electrode involves passing the electrode through a vertically falling curtain or waterfall of the matrix material carried in a liquid vehicle. The coated electrode is then heat treated to remove the liquid vehicle, leaving a layer of matrix material on the electrode surface. This curtain coating process has been used to produce matrix layers of 2.5 mils having a variation in thickness of no more than 0.2 mils.
    Type: Grant
    Filed: December 23, 1977
    Date of Patent: November 6, 1979
    Assignee: United Technologies Corporation
    Inventor: Robert C. Stewart, Jr.
  • Patent number: 4172908
    Abstract: A flexural mode tuning fork quartz crystal vibrator having two vibrator tines including first and second opposed substantially planar surfaces, the thickness of the plate between said opposed surfaces being no greater than 0.2 mm is provided. Both surfaces of each tine have three electrodes on at least the lengthwise peripheral sides of the respective surfaces of the tines and a third electrode intermediate and not in contact with the two peripherally disposed electrodes with each intermediate electrode being short-circuited to the peripheral electrode on the other tine. A fourth electrode is disposed on at least one lengthwise side edge of both of the respective tines, the fourth electrode electrically coupling the peripherally disposed electrode on the lengthwise peripheral sides of the respective surfaces of the tine.
    Type: Grant
    Filed: October 31, 1977
    Date of Patent: October 30, 1979
    Assignee: Kabushiki Kaisha Suwa Seikosha
    Inventors: Shin Shibata, Kikuo Oguchi
  • Patent number: 4172319
    Abstract: A laminar triplex structure for use in the manufacture of electrical cells and batteries, cells and batteries made therefrom, and methods of making the same. The laminate comprises a thin flat sheet of separator material, a layer of metallic particles on one surface of the separator sheet and adhered thereto with a binder, and a layer of conductive plastic adhered to the layer of metal particles. The laminate is made by the process of coating a dispersion of metal particles in a solution of a polymeric binder in an organic solvent over the separator, drying to remove the solvent, coating over the dried metal layer with a dispersion of conductive particles in a solution of a polymer in an organic solvent, and drying to remove the solvent.
    Type: Grant
    Filed: March 13, 1978
    Date of Patent: October 30, 1979
    Assignee: Polaroid Corporation
    Inventors: Stanley M. Bloom, Charles K. Chiklis, Gordon F. Kinsman
  • Patent number: 4172907
    Abstract: A method of protecting from physical damage the upper surface of medium and large scale integrated IC circuit chips. Certain types of IC chips are provided with a plurality of input/output terminals, or bumps, which project above the upper surface of the chips on which they are formed. The upper surface of each such chip, including its bumps, are spin coated with a thin adhesion promoter which is then dried. The chips and its terminals are next spin coated with a layer of a heat curable resin which is partially cured. The resin and the adhesion promoter are then removed from the upper surfaces of the bump by rubbing with a soft abrasive material. The resin remaining on each IC chip is then finally cured.
    Type: Grant
    Filed: December 29, 1977
    Date of Patent: October 30, 1979
    Assignee: Honeywell Information Systems Inc.
    Inventors: Arthur H. Mones, James E. O'Keefe
  • Patent number: 4172702
    Abstract: Dyeable and dyed polymer-coatings on metal articles such as sliders on slide fasteners, buttons, buckles, clasps, nuts, bolts, hooks, etc. are disclosed which include a substantial quantity of active proton acceptor groups relative to the number of polymer molecules in order to provide adequate dye pick-up.
    Type: Grant
    Filed: February 19, 1976
    Date of Patent: October 30, 1979
    Assignee: Textron Inc.
    Inventors: Lornie J. Bernier, Tapan K. Das
  • Patent number: 4172909
    Abstract: Precipitation of metal salts from solution onto the electrode support structure takes place in several consecutive stages, with the precipitating solution caused to move countercurrent to the electrodes being impregnated.
    Type: Grant
    Filed: August 11, 1977
    Date of Patent: October 30, 1979
    Assignee: Varta Batterie Aktiengesellschaft
    Inventor: August Winsel
  • Patent number: 4172158
    Abstract: A method is described which forms amorphous phosphorus-nitrogen-oxygen material having excellent thermal stability and low reactivity to a wide variety of chemicals. The material is manufactured using a chemical vapor deposition process. The reaction chamber is maintained at a temperature between about 400.degree.-900.degree. C. with a suitable substrate placed therein. Reaction gases containing phosphorus-nitrogen-bearing compounds and a source of oxygen are passed through the chamber to deposit the phosphorus-nitrogen-oxygen film onto the substrate.
    Type: Grant
    Filed: February 28, 1977
    Date of Patent: October 23, 1979
    Assignee: International Business Machines Corporation
    Inventor: Pei-Ching Li
  • Patent number: 4171387
    Abstract: A cellulosic substrate is coated by applying a polyurethane adhesive thereto, drying the adhesive, coating the adhesive with an ultraviolet curable solid polyacrylate resin and then curing the composite structure with ultraviolet rays.
    Type: Grant
    Filed: February 6, 1978
    Date of Patent: October 16, 1979
    Assignee: Champion International Corporation
    Inventors: Ozzie Fogle, James Cooley
  • Patent number: 4170690
    Abstract: A weatherable coating composition, especially for imparting abrasion resistance to thermoplastic substrates, comprising about 30-50 parts by weight of a colloidal silica and about 50 to 70 parts by weight of a mixture of (i) dialkyldialkoxysilane and (ii) alkyl trialkoxysilane wherein the weight ratio of (i) to (ii) is about 1:19 to about 1:4. A method of applying the coating composition to a substrate and coated articles are also disclosed.
    Type: Grant
    Filed: December 12, 1977
    Date of Patent: October 9, 1979
    Assignee: Rohm and Haas Company
    Inventors: David C. Armbruster, William F. Fischer
  • Patent number: 4170461
    Abstract: A wet chemical method for the direct deposition of cuprous oxide onto a transparent nonmetallic substrate such as glass wherein the electrolessly deposited cuprous oxide film is heated to effect a change in the color of transmitted light is disclosed.
    Type: Grant
    Filed: December 29, 1976
    Date of Patent: October 9, 1979
    Assignee: PPG Industries, Inc.
    Inventors: J. Shannon Breininger, Charles B. Greenberg
  • Patent number: 4169732
    Abstract: A photosensitive coating composition comprising reaction products of a monoethylenically unsaturated carboxylic acid and two different epoxy polymers; a polyethylenically unsaturated compound; and photoinitiator; and method of employing the same.
    Type: Grant
    Filed: January 9, 1978
    Date of Patent: October 2, 1979
    Assignee: International Business Machines Corporation
    Inventor: John F. Shipley