Patents Examined by Kenneth Jaconetty
  • Patent number: 4628857
    Abstract: A screen printing drum and machine including said drum for applying a coating to various shaped substrates, more particularly, slender-like substrates, more particularly writing implements.
    Type: Grant
    Filed: April 27, 1984
    Date of Patent: December 16, 1986
    Inventor: A. Robert Coningsby
  • Patent number: 4606934
    Abstract: A process for forming an overcoated electrophotographic imaging member comprising applying on an electrophotographic imaging member a coating in liquid form comprising a cross-linkable siloxanol-colloidal silica hybrid material having at least one silicon bonded hydroxyl group per every three --SiO-- units and a catalyst for the cross-linkable siloxanol-colloidal silica hybrid material, the coating in liquid form having an acid number less than about 1 and curing the cross-linkable siloxanol-colloidal silica hybrid material until the siloxanol-colloidal silica hybrid material forms a hard cross-linked solid organosiloxane-silica hybrid polymer layer.
    Type: Grant
    Filed: September 4, 1984
    Date of Patent: August 19, 1986
    Assignee: Xerox Corporation
    Inventors: Lieng-Huang Lee, Deborah J. Nichol-Landry, Christine J. Tarnawskyj
  • Patent number: 4586792
    Abstract: An electronic display device having a polyaniline film coated on a transparent electrode. The film has electrochromic properties and will display at least three distinct reproducible color changes.
    Type: Grant
    Filed: August 31, 1984
    Date of Patent: May 6, 1986
    Assignees: Board of Governors for Higher Education, State of Rhode Island, Providence Plantations
    Inventors: Sze C. Yang, Richard R. Durand, Jr.
  • Patent number: 4585672
    Abstract: A thin film stripe that includes a conductive metal alloyed with at least one other element capable of chemically bonding with hydrogen and a compound formed by hydrogen chemically bonded with at least one other element in sufficient amounts to increase the stripe's resistance to electromigration failure at normal operating temperatures and pressures.
    Type: Grant
    Filed: February 27, 1985
    Date of Patent: April 29, 1986
    Assignee: Syracuse University
    Inventors: James A. Schwarz, Robert W. Pasco
  • Patent number: 4581250
    Abstract: A method of making a microwave semiconductor component and concurrently forming therewith a mounting membrane adapted for positioning the semiconductor component in an RF transmission medium such as a waveguide. Substantially concurrently with the deposition of a metallic film in connection with forming a semiconductor elements, there is deposited a metallic membrane on the base silicon substrate and outside of the circuit element. The outer periphery of the base substrate is removed to expose the membrane. The metallic membrane is preferably of gold.
    Type: Grant
    Filed: September 13, 1984
    Date of Patent: April 8, 1986
    Assignee: M/A-COM, Inc.
    Inventors: Albert L. Armstrong, William Moroney
  • Patent number: 4575190
    Abstract: A hermetic electro-optic display cell has an enclosure for a liquid electrolyte comprising a wall of a plastics material, a lower inorganic base and an upper window both of which are impervious to the electrolyte. Impervious gasket means seals at least the lower edges of the wall to the base when clamped together. To render the wall hermetic an inorganic coating is provided around the exterior faces and along the edges at least as far as the gasket means. Metal is the preferred coating except for transparent faces where silica may be employed.
    Type: Grant
    Filed: December 9, 1983
    Date of Patent: March 11, 1986
    Assignee: International Business Machines Corporation
    Inventors: John C. Wood, Anthony C. Lowe, Barry F. Dowden
  • Patent number: 4573768
    Abstract: Electrochromic display devices which will maintain coloration after the electric current has been removed will comprise an electronic conductor consisting of a support which may be electrically conductive per se or contain an electronic conductor thereon, an electrochromic material in contact with said conductor, a solid electrolyte comprising a blend of an organic polymer and a heteropoly acid or salt thereof disposed on said electrochromic material and a counter-electrode in contact with the solid electrolyte. By utilizing this type of solid electrolyte, it is possible to obtain a display device which may range from about 5 to about 100 microns in thickness.
    Type: Grant
    Filed: December 5, 1983
    Date of Patent: March 4, 1986
    Assignee: The Signal Companies, Inc.
    Inventors: Anthony J. Polak, James A. Wrezel, Allyson J. Beuhler
  • Patent number: 4571348
    Abstract: A method of treating thin films containing a significant atomic proportion of hydrogen to enable such films to be subjected to elevated temperatures without blistering. The films are subjected to a significant, i.e. damaging, high implantation prior to heat treatment.
    Type: Grant
    Filed: August 8, 1984
    Date of Patent: February 18, 1986
    Assignee: General Motors Corporation
    Inventor: John R. Troxell
  • Patent number: 4568567
    Abstract: A method of processing a bialkali-antimonide photoemissive cathode to remove trace quantities of alkali metal impurities is disclosed. The cathode is formed by heating alkali vapor sources comprising the chromates of two alkali materials which include trace impurities of two other alkali materials of higher vapor pressures than the aforementioned two alkali materials to sufficiently high temperatures to produce alkali vapors. The temperature of the substrate onto which the various alkali vapors condense is maintained at a sufficiently high temperature for a sufficiently long period of time to drive off the trace quantities of the higher vapor pressure other alkali materials from the substrate. Additionally, after the alkali vapor sources are heated to temperatures sufficient to vaporize the alkali chromates therein, the temperatures of the sources are lower and maintained at sufficient levels to accelerate the removal of reduced alkali vapors from the sources and from the photomultiplier tube.
    Type: Grant
    Filed: October 9, 1984
    Date of Patent: February 4, 1986
    Assignee: RCA Corporation
    Inventor: Richard D. Faulkner
  • Patent number: 4565156
    Abstract: A solution growth apparatus for conducting an epitaxial growth of a compound semiconductor crystal from solution by relying on the temperature difference technique at a constant growth temperature and on a mass production scale without deranging the control of the growth temperature applied externally of the growth apparatus and with the application of only a small heating power and only a small cooling power, by enhancing the thermal exchange efficiency through the provision of heating means, via an insulator, for the melt-containing reservoir provided on the growth boat housed within a quartz reactor and by the provision of cooling means at the bottom of the boat within the reactor.
    Type: Grant
    Filed: February 28, 1983
    Date of Patent: January 21, 1986
    Assignee: Zaidan Hojin Handotai Kenkyu Shinkokai
    Inventors: Jun-ichi Nishizawa, Yasuo Okuno
  • Patent number: 4562088
    Abstract: Apparatus and techniques for maintaining a constant flow rate of a coating material in a painting system are presented. A test loop is provided in shunt with the conduit passing a coating material in a painting system. The test loop determines a sensitivity factor for the coating, establishing for that coating a relationship between temperature changes and pressure. That sensitivity factor is then used to regulate the pressure at the spray nozzles to compensate for temperature changes experienced in the coating material.
    Type: Grant
    Filed: June 6, 1984
    Date of Patent: December 31, 1985
    Assignee: Nordson Corporation
    Inventor: Richard R. Navarro
  • Patent number: 4545321
    Abstract: A device for the application of at least one cast layer (7) on a moving sheet-shaped substrate (4) has a rotating casting roll (1) which guides the substrate. A pouring vessel (8) is arranged adjacent to the casting roll while leaving a casting gap (13). A suction device with a housing (15) has a low pressure chamber (16) extending from the gap (13) to a partition (25) and has a vacuum chamber (17) extending from the partition (25) to an end wall (26). Partition (25) and/or end wall (26) can be adjusted in circumferential direction. The low pressure chamber (16) and the vacuum chamber (17) are connected with each other by means of a bypass (51). In this way, even under varying operating conditions, a high constancy of the pressure in the low pressure chamber (16) can be attained.
    Type: Grant
    Filed: March 16, 1984
    Date of Patent: October 8, 1985
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Altan Bassa
  • Patent number: 4539226
    Abstract: An apparatus for applying a coating on a lightguide fiber (60). The apparatus is comprised of a container (10) having the coating die (18) in the bottom portion thereof and a plurality of separating means (26--26) therein which divides the container into an upper chamber (12), a lower chamber (16) and at least one chamber (14) intermediate to the upper and lower chambers. Each separating means (26) is sealed to the inner surface of the container (10) at the outer edge portion and has a small, centrally located aperture (28) which is vertically aligned with the apertures in the other separating means and the coating die (18). Additionally, a means is provided for directing coating material (40), under pressure, into the lower chamber (16).
    Type: Grant
    Filed: March 2, 1984
    Date of Patent: September 3, 1985
    Assignee: AT&T Technologies, Inc.
    Inventors: Un C. Paek, Charles M. Schroeder, Jr.
  • Patent number: 4537792
    Abstract: A water repellent, for example an organic silicon compound, is added to an annealing separator which is applied electrostatically to the surface of a grain oriented magnetic steel sheet, or a glass-like film forming undercoating formed on the sheet surface.
    Type: Grant
    Filed: September 30, 1983
    Date of Patent: August 27, 1985
    Assignee: Nippon Steel Corporation
    Inventors: Minoru Kitayama, Motoharu Nakamura, Kikuji Hirose, Masashi Tanida
  • Patent number: 4535719
    Abstract: A liquid dispensing gun for applying a liquid to a substrate which includes a movable valve stem for opening and closing a liquid-dispensing valve and a deflector plate movable in conjunction with the valve stem to deflect the substrate away from the gun when the valve is closed. The deflector plate is activated by a pair of linearly translated push rods which are coupled through a push rod beam and piston to the valve stem so that the valve stem and deflector plate move in unison.
    Type: Grant
    Filed: April 6, 1984
    Date of Patent: August 20, 1985
    Assignee: Nordson Corporation
    Inventor: Donald J. Regan, deceased
  • Patent number: 4525312
    Abstract: The primary coating (2) of an optical fibre element is reinstated over a fused joint between two silica fibre elements (3) by a casting process. The jointed silica fibre elements are arranged in a groove (8) of a mould (9, 10, 11) and liquid uncured primary coating material placed into the groove, the groove ends being blocked by the existing primary coatings (2) on the fibre elements (3). The coating material in the groove is cured by, for example, heating the mould. Secondary coating material (1) may be injection moulded using a two-part mould to reinstate the secondary coating over the cast primary coating.
    Type: Grant
    Filed: November 23, 1983
    Date of Patent: June 25, 1985
    Assignee: Standard Telephones and Cables plc
    Inventor: Stephen R. Jones
  • Patent number: 4519549
    Abstract: An electrostatic coating process which comprises feeding a liquid paint in thin film form toward the circumferential edge of a high-velocity rotating member having a high voltage applied thereto along the inner circumferential surface thereof and atomizing the paint from the circumferential edge of the high-velocity rotating member; characterized in that a number of cuts are formed on the circumferential edge, and a stream of the paint flowing forwardly substantially in the axial direction of the high-velocity rotating member is converted at said circumferential edge into a number of diametrically outwardly flowing divided paint streams and simultaneously atomized and discharged. Preferably, the paint is fed to the inner circumferential surface of the rotating member through an annular paint flow passage having knurled grooves formed over its entire outer circumferential surface.
    Type: Grant
    Filed: September 28, 1982
    Date of Patent: May 28, 1985
    Assignee: Trinity Industrial Corporation
    Inventors: Sadao Yokoe, Seimei Abe, Shoichi Wakata, Satosi Endou, Kazuyoshi Onozawa
  • Patent number: 4415634
    Abstract: A substrate for a magnetic recording disk employs an annular core of synthetic material having thin metal foils bonded to opposite faces, the metal foils serving to receive a magnetic recording material to form a magnetic recording structure. The inner surfaces of foils which are bonded to the core faces have applied thereto a thin, soft, deformable layer such as copper to prevent irregularities in the core faces from affecting the outer surfaces of the metal foils.
    Type: Grant
    Filed: May 24, 1982
    Date of Patent: November 15, 1983
    Assignee: International Business Machines Corporation
    Inventors: Holger Hinkel, Ulrich Kuenzel, Erhard Max, Jochen Schneider
  • Patent number: 4407857
    Abstract: A method is provided for making a lithium-sodium-antimony photocathode including the step of forming a base layer including antimony on a substrate. Sodium is then deposited onto the base layer at an elevated temperature to a first peak value of responsivity, thereby forming a sodium-antimony surface. Next, at room temperature, lithium is deposited onto the substrate containing the sodium-antimony surface until the lithium-sodium-antimony photocathode develops a hazy brown color. The photocathode is sensitized by heating the substrate to an elevated temperature until a second peak value of responsivity, greater than the first peak value, is obtained. Antimony, sodium and lithium are then alternately deposited on the photocathode in order to stabilize the second responsivity peak.
    Type: Grant
    Filed: June 30, 1981
    Date of Patent: October 4, 1983
    Assignee: RCA Corporation
    Inventor: Gilbert N. Butterwick