Patents Examined by Jennifer Calcagni
  • Patent number: 6183815
    Abstract: A method for coating a metal surface, comprising: applying a solution comprising an amide thiol compound and a solvent to a metal surface, allowing the thiol compound to self assemble on the surface, and removing excess thiol compound from the surface. The amide thiol compound is preferably a fluoralkyl amide thiol and more preferably one having the general formula F(CF2)nCONH(CH2)nSH, where n and m are each 2-20. The solution can be sprayed onto the metal surface, or the metal surface can be dipped into the solution. The surface should be kept wet for a time period sufficient to allow the thiol molecules to self assemble on the metal surface.
    Type: Grant
    Filed: February 16, 1999
    Date of Patent: February 6, 2001
    Assignee: University of Pittsburgh
    Inventors: Robert M. Enick, Eric Beckman
  • Patent number: 6177133
    Abstract: A spin coating process for controlling the mean thickness of photoresist on the surface of a semiconductor wafer. The wafer surface has a central axis normal to the surface. The process comprises the steps of applying the solution to the wafer surface and spinning the wafer about the central axis at a spindle speed until the solution has dried. The spindle speed is a function of the desired mean thickness of the photoresist, the barometric pressure and the relative humidity. The spindle speed is determined from a statistical model described by the equation: MT=A+B×RH+C×BP+D/SS1/2 wherein: MT is mean thickness in Å; RH is relative humidity in percent; BP is barometric pressure in mm of Hg; SS is spindle speed in rpm; and A, B, C and D are constant coefficients.
    Type: Grant
    Filed: December 10, 1997
    Date of Patent: January 23, 2001
    Assignee: Silicon Valley Group, Inc.
    Inventors: Emir Gurer, Richard Savage
  • Patent number: 6171656
    Abstract: The present invention is an overspray collector and method of collecting overspray. The overspray collector provides a device and method to intercept overspray produced by spraying coating material onto any relatively-flat surface and preventing air pollution by capturing such pollution at its source. The overspray collector includes a shroud which surrounds and moves with the spraying device(s), while maintaining a gap between itself and the work surface being sprayed. Behind the spraying device and opposite the work surface, the shroud terminates in ducting through which overspray-laden air exits. Air inlet slots allow atmospheric air to enter in sufficient quantity to minimize residual airflow through the aforementioned gap. Internal to the shroud, the spray from the spray device(s) impinges upon the work surface and the finest sprayed particles turn laterally along the work surface without depositing thereupon, thus forming overspray.
    Type: Grant
    Filed: October 2, 1998
    Date of Patent: January 9, 2001
    Assignee: The Penn State Research Foundation
    Inventor: Gary S. Settles
  • Patent number: 6171655
    Abstract: A constructional finished wallboard is formed of a mixture including 50 to 65 wt. % of dried shirasu, 30 to 40 wt. % of a plaster component, 3 to 10 wt. % of a clay component, 5 to 10 wt. % of shirasu balloons, 0.8 to 2 wt. % of a bond reinforcing component, 0.01 to 3 wt. % of a color pigment, and 1 to 5 wt. % of fibers for plaster. In preparing the wallboard, after preparing the mixture, an appropriate amount of water is added to the mixture to mix together, which is applied onto a substrate. Then, the surface of the mixture on the substrate is finished, followed by drying to thereby form the constructional finished board.
    Type: Grant
    Filed: July 16, 1999
    Date of Patent: January 9, 2001
    Assignee: Takachiho Corp.
    Inventor: Masahiro Shintome
  • Patent number: 6165266
    Abstract: A simple or double head applies varnish to the covers in a circular motion and conical projection with adjustable height by means of a varnishing gun which can be provided with an additional separator of variable thickness according to the covers; it also comprises a cover conveyor device provided with another motor, an intermittent rotation box at the outlet, and a supply box which actuates a cover positioning device and a dosing blade which collects, separates and inserts the covers in a groove of the positioning device for their supply to the conveyor device.
    Type: Grant
    Filed: March 19, 1999
    Date of Patent: December 26, 2000
    Inventor: Jose Penalver Garcia
  • Patent number: 6162507
    Abstract: An apparatus is disclosed for dispensing liquids on to a rotating surface. The apparatus includes first and second dispense lines connected to at least one liquid source to permit the dispensing of liquids from the first and second dispense lines on to a rotating surface. In a preferred embodiment, the first and second dispense lines are tubular and have first and second dispense tube disposed within the interior region of the first and second dispense lines, respectively. The first and second dispense tubes define first and second annular regions with the dispense lines, which are preferably connected by a fluid channel. A heat exchanger is attached to the first and second annular region to enable a heat transfer medium to be circulated through the first and second annular regions and the fluid channel.
    Type: Grant
    Filed: December 8, 1998
    Date of Patent: December 19, 2000
    Assignee: Micron Technology, Inc.
    Inventors: Bruce L. Hayes, Mark V. Peckham
  • Patent number: 6162503
    Abstract: A process is described for treating metal surfaces with a composition comprising an oxidizer, an acid, a corrosion inhibitor, a benzotriazole with an electron withdrawing group in the 1-position which electron withdrawing group is a stronger electron withdrawer than a hydrogen group, and optionally, a source of adhesion enhancing species selected from the group consisting of molybdates, tungstates, tantalates, niobates, vanadates, isopoly or heteropoly acids of molybdenum, tungsten, tantalum, niobium, vanadium, and combinations of any of the foregoing in order to increase the adhesion of polymeric materials to the metal surface.
    Type: Grant
    Filed: March 23, 1999
    Date of Patent: December 19, 2000
    Assignee: MacDermid, Incorporated
    Inventor: Donald Ferrier
  • Patent number: 6159291
    Abstract: A substrate treating apparatus for treating a substrate in a predetermined substrate treating region. Each holder arm is supported in a proximal end portion thereof by an arm support to be swingable about a pivotal axis. In time of substrate treatment, the arm support is raised by an air cylinder. With the ascent of the arm support, a cam follower attached to a proximal end of the holder arm is guided by a cam groove. The holder arm, while being raised, turns from a vertical standby posture to a horizontal posture for treating the substrate. As a result, a treating device attached to a distal end of the holder arm moves to a treating position. In the treating position, the treating device treats the substrate. The holder arms are maintained in the vertical standby posture when out of use in substrate treatment. Thus, the holder arms require a reduced standby space.
    Type: Grant
    Filed: August 10, 1998
    Date of Patent: December 12, 2000
    Assignee: Dainippon Screen Mfg. Co., Ltd.
    Inventors: Akihiko Morita, Joichi Nishimura, Masami Ohtani
  • Patent number: 6159538
    Abstract: A method for introducing hydrogen into layered nanostructures. The method comprises: a) treating the layered nanostructures with an inert gas at a temperature of at least about 800.degree. C. for an effective amount time; and b) introducing hydrogen into said nanostructures by subjecting the nanostructures to flowing hydrogen at a pressure from about 1,000 psig to about 3,000 psig. The layered nanostructures are characterized as possessing: at least some crystallinity, interstices from about 0.335 nm to 0.67 nm, and sorption properties with respect to hydrogen at those surfaces of the nanostructure which define the interstices. Preferred layered nanostructures are carbon nanostructures such as those selected from carbon nanotubes, carbon fibrils, carbon nanoshells, and carbon nanofibers. Hydrogen is chemisorbed into the interstices of the nanostructures.
    Type: Grant
    Filed: June 15, 1999
    Date of Patent: December 12, 2000
    Inventors: Nelly M. Rodriguez, R. Terry K. Baker
  • Patent number: 6159550
    Abstract: A method and apparatus for continuously coating particulate such as rubber with liquid binder and applying the same to a substrate to form resilient athletic surfaces. Total encapsulation of the particulate with the liquid binder is accomplished prior to applying the mix to the substrate. In addition, the method of delivery of the particulate and binder maintains the ratios thereof uniform. In its method aspects, the instant invention involves separately introducing a stream of particulate and a stream of binder into a spray nozzle, where they are combined and delivered to the substrate. The apparatus includes a nozzle assembly having a central lumen and an elongated tip, the lumen being formed so as to force the particulate introduced therein to follow a circuitous or indirect path therethrough and thereby decrease its velocity prior to being ejected from the nozzle.
    Type: Grant
    Filed: February 15, 1995
    Date of Patent: December 12, 2000
    Inventor: Daniel A. Daluise
  • Patent number: 6159541
    Abstract: A coating process comprises the steps of (a) holding a substrate using a spin chuck surrounded by inner and outer cups, such that the substrate can rotate, (b) rotating the substrate by rotating the spin chuck, and applying a coating liquid onto the substrate, thereby forming a coating on the substrate, (c) discharging, from the inner and outer cups, that part of the coating liquid which is scattered from the substrate while the substrate is rotated, (d) exhausting the inner and outer cups through a plurality of exhaust ports formed in outer peripheral portions of the outer cup, and (e) reducing, from a peripheral region of the substrate, the mist of the coating liquid which has occurred during the step (b), before the substrate stops rotation.
    Type: Grant
    Filed: October 30, 1998
    Date of Patent: December 12, 2000
    Assignee: Tokyo Electron Limited
    Inventors: Mitsuhiro Sakai, Hideyuki Takamori, Masafumi Nomura
  • Patent number: 6159532
    Abstract: A chemical-resistant protective glove includes a polymer base with a thin fluoroelastomeric coating. The glove is made by first placing the base on a mounting frame and inflating it with gas to spread the fingers. Successive thin layers of a water-base emulsion of the fluoroelastomeric material are then sprayed on the base. The final coating is applied with a relatively high air flow, creating a matte finish.
    Type: Grant
    Filed: June 16, 1999
    Date of Patent: December 12, 2000
    Assignee: Mapa Pioneer Corporation
    Inventors: Rick Mallernee, John Bordas
  • Patent number: 6159552
    Abstract: The formation of passivation coatings on ferrous substrates is disclosed by heating the substrate in an aqueous 1.0 to 6.0 M basic metal hydroxide treatment bath containing SiO.sub.2 and a water-soluble glycol, at a temperature that is effective to form a passivation coating on the substrate until the passivation coating is formed thereon, wherein the treatment bath contains from about 0.25 to about 1.0 moles of SiO.sub.2 per liter of glycol and water.
    Type: Grant
    Filed: January 14, 1999
    Date of Patent: December 12, 2000
    Assignee: Rutgers, The State University
    Inventors: Richard E. Riman, Seung-Beom Cho
  • Patent number: 6159535
    Abstract: The invention discloses a method and a device for applying a parting agent onto an injection mould, by means of which a powdery parting agent can be applied in a gush-free manner by means of pressurized air. For this purpose, the feed air and the dosing air for the powdery parting agent are turned on, increased, reduced and turned off in a controlled manner by means of predetermined turn-on and turn-off profiles.
    Type: Grant
    Filed: December 2, 1998
    Date of Patent: December 12, 2000
    Assignee: Wagner International AG
    Inventors: Bernd Lutz, Horst Adams
  • Patent number: 6159290
    Abstract: An end effector in a robotic arm assembly receives a substrate in a cassette module and moves the substrate into a process module. A turntable rotatable on a fixed axis rotates a stator and a planet in the process chamber to a position of the planet in axial alignment with the end effector in the process chamber. A lifter assembly axially aligned with, and initially axially displaced from, the axially aligned planet is moved axially to lift the substrate from the end effector. The end effector is then withdrawn by the robotic arm assembly from the process chamber and the substrate is deposited by the lifter assembly on the axially aligned planet. When successive substrates have been sequentially deposited on a plurality of planets in the process chamber in the manner described above, the planets are individually rotated by the turntable relative to the stator on a second axis displaced from the first axis. The stator has peripheral teeth which mesh with teeth on the planets, the teeth being constructed (e.g.
    Type: Grant
    Filed: October 2, 1998
    Date of Patent: December 12, 2000
    Assignee: Shamrock Technology Corp.
    Inventors: Peter J. Clarke, Amos Barb
  • Patent number: 6146746
    Abstract: The use of a formaldehyde-free aqueous binder comprisingA) a polymer obtained by free-radical polymerization comprising 5-100% by weight of an ethylenically unsaturated acid anhydride or of an ethylenically unsaturated dicarboxylic acid whose carboxyl groups may form an anhydride group, andB) an alkanolamine having at least two hydroxyl groupsas a coating composition for shaped articles.
    Type: Grant
    Filed: August 19, 1998
    Date of Patent: November 14, 2000
    Assignee: BASF Aktiengesellschaft
    Inventors: Bernd Reck, Eckehardt Wistuba, Wilhelm Friedrich Beckerle, Axel Kistenmacher, Robert Rupaner, Rainer Hummerich
  • Patent number: 6146701
    Abstract: A process is described for treating metal surfaces with a composition comprising an oxidizer, an acid, a corrosion inhibitor, a source of halide ions, a source of adhesion enhancing ions selected from the group consisting of molybdates, tungstates, tantalates, niobates, vanadates and mixtures thereof and optionally a water soluble polymer in order to increase the adhesion of polymeric materials to the metal surface.
    Type: Grant
    Filed: January 12, 1999
    Date of Patent: November 14, 2000
    Assignee: MacDermid, Incorporated
    Inventor: Donald Ferrier
  • Patent number: 6143370
    Abstract: A process for forming polymer coatings on the surfaces of objects, e.g., medical stents, is disclosed. The coatings formed by the process of the invention comprise small spherical, spheroidal or irregular shape polymer particles, which may be adhered together. Coatings may have high porosity and high surface area.
    Type: Grant
    Filed: August 26, 1998
    Date of Patent: November 7, 2000
    Assignee: Northeastern University
    Inventors: Thomai Panagiotou, Yiannis Levendis
  • Patent number: 6139636
    Abstract: A spray coating device for coating a rotating wafer according to the invention is disclosed. The spray coating device comprises a spray head having a plurality of spray holes which are located on one end thereof with more in number on both sides than on the center of the end for uniformly spraying a chemical liquid on the rotated wafer. Since spray holes are more in number on the both sides than on the center of the end, the rotated wafer can be uniformly spray coated with the chemical liquid even though several spray holes are congested.
    Type: Grant
    Filed: November 12, 1998
    Date of Patent: October 31, 2000
    Assignee: United Microelectronics Corp.
    Inventors: Kuo-Feng Huang, Kuo-Chen Wang, Ming-Che Yang, Hsien-Jung Hsu
  • Patent number: 6136379
    Abstract: A convergent spray gun which combines a liquid resin and dry metallic powder externally of the nozzle of the spray gun that utilizes a pair of diametrically opposing passages disposed at 0.degree. and 90.degree. relative to the central resin discharging orifice where the central orifice is approximately 0.015 inch and the air for atomizing the fluids is approximately 0.187 inch and the atomizing angle is approximately 180.degree.. The metallic filler is added to the plume of the convergent spray at the low pressure section and the ratio of the fluids are controlled by a computerized system. The spray gun, controls and mixing chambers of the resin (two part) and powder fillers are housed in separate rooms and the dust where the powder fillers are metered is controlled.
    Type: Grant
    Filed: June 30, 1999
    Date of Patent: October 24, 2000
    Assignee: USBI Co.
    Inventors: Jack G. Scarpa, James Fletcher Burgess, John D. Marlin, Matthew Kelly, Anthony Howard