Patents Examined by Kenneth Jaconetty
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Patent number: 4628857Abstract: 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: GrantFiled: April 27, 1984Date of Patent: December 16, 1986Inventor: A. Robert Coningsby
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Patent number: 4606934Abstract: 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: GrantFiled: September 4, 1984Date of Patent: August 19, 1986Assignee: Xerox CorporationInventors: Lieng-Huang Lee, Deborah J. Nichol-Landry, Christine J. Tarnawskyj
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Patent number: 4586792Abstract: 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: GrantFiled: August 31, 1984Date of Patent: May 6, 1986Assignees: Board of Governors for Higher Education, State of Rhode Island, Providence PlantationsInventors: Sze C. Yang, Richard R. Durand, Jr.
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Patent number: 4585672Abstract: 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: GrantFiled: February 27, 1985Date of Patent: April 29, 1986Assignee: Syracuse UniversityInventors: James A. Schwarz, Robert W. Pasco
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Patent number: 4581250Abstract: 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: GrantFiled: September 13, 1984Date of Patent: April 8, 1986Assignee: M/A-COM, Inc.Inventors: Albert L. Armstrong, William Moroney
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Patent number: 4575190Abstract: 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: GrantFiled: December 9, 1983Date of Patent: March 11, 1986Assignee: International Business Machines CorporationInventors: John C. Wood, Anthony C. Lowe, Barry F. Dowden
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Patent number: 4573768Abstract: 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: GrantFiled: December 5, 1983Date of Patent: March 4, 1986Assignee: The Signal Companies, Inc.Inventors: Anthony J. Polak, James A. Wrezel, Allyson J. Beuhler
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Patent number: 4571348Abstract: 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: GrantFiled: August 8, 1984Date of Patent: February 18, 1986Assignee: General Motors CorporationInventor: John R. Troxell
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Patent number: 4568567Abstract: 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: GrantFiled: October 9, 1984Date of Patent: February 4, 1986Assignee: RCA CorporationInventor: Richard D. Faulkner
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Patent number: 4565156Abstract: 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: GrantFiled: February 28, 1983Date of Patent: January 21, 1986Assignee: Zaidan Hojin Handotai Kenkyu ShinkokaiInventors: Jun-ichi Nishizawa, Yasuo Okuno
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Patent number: 4562088Abstract: 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: GrantFiled: June 6, 1984Date of Patent: December 31, 1985Assignee: Nordson CorporationInventor: Richard R. Navarro
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Patent number: 4545321Abstract: 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: GrantFiled: March 16, 1984Date of Patent: October 8, 1985Assignee: E. I. Du Pont de Nemours and CompanyInventor: Altan Bassa
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Patent number: 4539226Abstract: 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: GrantFiled: March 2, 1984Date of Patent: September 3, 1985Assignee: AT&T Technologies, Inc.Inventors: Un C. Paek, Charles M. Schroeder, Jr.
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Patent number: 4537792Abstract: 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: GrantFiled: September 30, 1983Date of Patent: August 27, 1985Assignee: Nippon Steel CorporationInventors: Minoru Kitayama, Motoharu Nakamura, Kikuji Hirose, Masashi Tanida
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Patent number: 4535719Abstract: 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: GrantFiled: April 6, 1984Date of Patent: August 20, 1985Assignee: Nordson CorporationInventor: Donald J. Regan, deceased
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Patent number: 4525312Abstract: 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: GrantFiled: November 23, 1983Date of Patent: June 25, 1985Assignee: Standard Telephones and Cables plcInventor: Stephen R. Jones
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Patent number: 4519549Abstract: 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: GrantFiled: September 28, 1982Date of Patent: May 28, 1985Assignee: Trinity Industrial CorporationInventors: Sadao Yokoe, Seimei Abe, Shoichi Wakata, Satosi Endou, Kazuyoshi Onozawa
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Patent number: 4415634Abstract: 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: GrantFiled: May 24, 1982Date of Patent: November 15, 1983Assignee: International Business Machines CorporationInventors: Holger Hinkel, Ulrich Kuenzel, Erhard Max, Jochen Schneider
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Patent number: 4407857Abstract: 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: GrantFiled: June 30, 1981Date of Patent: October 4, 1983Assignee: RCA CorporationInventor: Gilbert N. Butterwick