Electrical Process Patents (Class 428/934)

Cross-Reference Art Collections

Electroplating (Class 428/935)
  • Patent number: 8663807
    Abstract: An article of manufacture and a process for making the article by generating corrosion-, heat- and abrasion-resistant ceramic coatings comprising titanium and/or zirconium dioxide using direct and alternating current on anodes comprising aluminum and/or titanium. Optionally, the article is coated with additional layers, such as paint, after deposition of the ceramic coating.
    Type: Grant
    Filed: July 28, 2009
    Date of Patent: March 4, 2014
    Assignee: Henkel AG & Co. KGaA
    Inventor: Shawn E. Dolan
  • Patent number: 6994920
    Abstract: A fusion welding method is provided for fusion welding at juxtaposed interface surfaces a first member, for example made of a first metal based on at least one of Ru, Rh, Pd, and Pt, with a second member made of a second metal, for example a high temperature alloy based on at least one of Fe, Co, and Ni, including at least one identified element, for example Al, that can form a continuous layer of a brittle intermetallic compound with the first metal that is free of such element. With the interface surfaces disposed in contact, energy is generated at the interface surfaces in a combination of an amount and for a first time selected to be sufficient to heat the interface surfaces to a fusion welding temperature. However, the first time is less than a second time that enables formation at the fusion welding temperature of the continuous layer of the brittle intermetallic compound at the interface surfaces.
    Type: Grant
    Filed: October 31, 2003
    Date of Patent: February 7, 2006
    Assignee: General Electric Company
    Inventor: Gary Edward Trewiler
  • Patent number: 6849344
    Abstract: A titanium article having improved corrosion resistance resulting from a direct or indirect attachment of a platinum group metal or alloy thereof or incorporation of this metal or alloy thereof into a minor surface portion of the article.
    Type: Grant
    Filed: June 3, 2003
    Date of Patent: February 1, 2005
    Assignee: Titanium Metals Corp.
    Inventors: James S. Grauman, James G. Miller, Roy E. Adams
  • Patent number: 6607846
    Abstract: A titanium article having improved corrosion resistance resulting from an appliqué of a platinum group metal or alloy thereof attached to a minor surface portion of the article.
    Type: Grant
    Filed: September 25, 2002
    Date of Patent: August 19, 2003
    Assignee: Titanium Metals Corporation
    Inventors: James S. Grauman, James G. Miller, Roy E. Adams
  • Patent number: 6548191
    Abstract: A filler wire for laser-welding an aluminum alloy is described, which comprises a base material of Aluminum-Silicon based alloy and a flux of Aluminum-Potassium-Fluorine-based composition. The amount of the flux in the base material is greater than 0 (zero) wt. % and less than approximately 1.0 wt. %.
    Type: Grant
    Filed: June 12, 2001
    Date of Patent: April 15, 2003
    Assignees: Nissan Motor Co., Ltd., Showa Denko KK
    Inventors: Yasuhiro Osame, Takenori Hashimoto, Kenji Tsushima, Hiroki Sakamoto, Kenji Suzuki
  • Patent number: 6534196
    Abstract: The present invention relates to articles, having an extended useful life, which are used in contact with high temperature molten aluminum or molten zinc baths. One aspect of the invention encompasses articles, such as bearings, bushings, couplings or rollers, used in contact with molten aluminum or molten zinc which is coated with a high density coating consisting of a metal selected from Groups Vb, VIb, or VIIb metals (preferably molybdenum or tungsten), in pure or alloyed form. These coatings generally have a thickness of from about 0.06 to about 0.30 inch. Another aspect of the present invention encompasses a roll for guiding steel strip through a high temperature aluminizing bath, which utilizes a multi-layer structure, the first primer layer being a Group Vb, VIb or VIIb metal, preferably tungsten or molybdenum (in pure or alloyed form), the second layer comprising MCrAlY in which M is either nickel or cobalt, and the third layer comprising a refractory metal oxide of Al, Zr, Si or Cr.
    Type: Grant
    Filed: February 26, 2001
    Date of Patent: March 18, 2003
    Assignee: Cincinnati Thermal Spray
    Inventor: Robert K. Betts
  • Patent number: 6528183
    Abstract: Clad sheet made up of a core sheet and a cladding layer on one or two core sheet surfaces. The core sheet is formed of an alloy having the composition (% by weight) Si: 0.7-1.3, Mg: 0.6-1.2, Cu: 0.5-1.1, Mn: 0.15-1.0, Zn<0.5, Fe<0.5, Zr<0.2, Cr<0.25, other elements <0.05 each and <0.15 total, the remainder aluminum. The cladding is formed of an AlZn alloy having a thickness of between 1 and 15% of the clad sheet thickness, having the composition (% by weight) Zn: 0.25-0.7, Fe<0.40, Si<0.40, Cu, Mn, Mg, V or Ti <0.10, other elements <0.05 each and 0.15 total.
    Type: Grant
    Filed: July 5, 2001
    Date of Patent: March 4, 2003
    Assignee: Pechiney Rhenalu
    Inventors: Ronan Dif, Bernard Bes, Philippe Lassince, Herve Ribes
  • Patent number: 6479168
    Abstract: A method is disclosed for laser lap welding a pair of metal members together. At least one of the pair of metals having a protective metal layer. Each of the metal members having a melt temperature greater than the melt temperature of the protective metal layer. The method includes placing one end of the pair of metal members in an overlapping relation to an other end of the pair of metal members to form an overlapping section. The method also includes inserting a metal alloying agent between the pair of metal members of the overlapping section to form a gap therebetween. A laser welder is used to join the pair of metal members and the alloy agent together so that the protective metal layer and the alloying agent are melted to form an alloy layer between the pair of metal members.
    Type: Grant
    Filed: April 3, 2001
    Date of Patent: November 12, 2002
    Assignee: The Regents of The University of Michigan
    Inventors: Jyoti Mazumder, Ashish Dasgupta, Michael Bembenek
  • Patent number: 6440583
    Abstract: Disclosed is an Al alloy for a welded construction having excellent welding characteristics, which Al alloy comprises 1.5 to 5 wt % of Si (hereinafter, wt % is referred to as %), 0.2 to 1.5% of Mg, 0.2 to 1.5% of Zn, 0.2 to 2% of Cu, 0.1 to 1.5% of Fe, and at least one member selected from the group consisting of 0.01 to 1.0% of Mn, 0.01 to 0.2% of Cr, 0.01 to 0.2% of Ti, 0.01 to 0.2% of Zr, and 0.01 to 0.2% of V, with the balance being Al and inevitable impurities. Also disclosed is a welded joint having this Al alloy base metal welded with an Al—Mg- or Al—Si-series filler metal.
    Type: Grant
    Filed: October 26, 2000
    Date of Patent: August 27, 2002
    Assignees: The Furukawa Electric Co., Ltd., Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Seizo Ueno, Yoichiro Bekki, Noboru Hayashi
  • Publication number: 20020003383
    Abstract: The present invention pertains to methods for altering the magnetic properties of materials and the novel materials produced by these methods. The methods of this invention concern the application of high voltage, high frequency sparks to the surface of materials in order to alter the magnetic properties of the materials. Specially, the present invention can be applied to diamagnetic silicon to produce ferromagnetic spark-processed silicon.
    Type: Application
    Filed: June 1, 2001
    Publication date: January 10, 2002
    Inventors: Jonathan A. Hack, Rolf E. Hummel, Matthias H. Ludwig
  • Patent number: 6337147
    Abstract: Improved shape and strength of the weld in a welded structure are obtained by use of a weldable aluminum product comprising a structural component which is a sheet, a plate or an extruded body and is made of an aluminum alloy containing not more than 1.5 wt % Zn. This component has, adhered on at least one side, a cladding layer made of an AA7xxx-series alloy having a corrosion potential lower than that of the alloy of the structural component. The alloy of the structural component is preferably an AA5xxx-series alloy containing Mg in the range 2 to 6 wt %.
    Type: Grant
    Filed: March 17, 2000
    Date of Patent: January 8, 2002
    Assignee: Corus Aluminium Walzprodukte GmbH
    Inventors: Alfred Johann Peter Haszler, Klaus Alfons Mechsner
  • Patent number: 5686186
    Abstract: A process for making a thermoformable conductive plastic laminate for use in making plastic parts adapted for electrostatic spray painting of a uniform high quality paint finish includes forming a matte release coated casting sheet, casting an electrically conductive polymer in thin film form on the casting sheet, drying to form a conductive primer coat, and transfer-laminating the conductive coating to a thin, thermoformable plastic face sheet. The matte release coat has a fine particulate filler that transfers a micro-toughened matte surface to the conductive primer coat. The conductive primer includes a polyester resin containing a fine particulate conductive material such as carbon black and, preferably, an anti-blocking agent such as fumed silica. The primer coated face sheet can be thermoformed and bonded to a underlying plastic substrate panel.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: November 11, 1997
    Assignee: Avery Dennison Corporation
    Inventors: Howard H. Enlow, Scott W. Huffer, Frederick Young, William J. Buehne
  • Patent number: 5458985
    Abstract: A method of manufacturing a stamper includes the steps of coating a flat surface of a substrate with photosensitive material; directing light to a specified position on the photosensitive material to expose it; developing the photosensitive material to make a minute photoresist pattern; etching the substrate to a specified depth with a mask of the photoresist pattern; removing the photoresist as the mask to make a glass master; arbitrarily forming a first nickel layer on a surface of the glass master; forming an intermediate layer of a metal having a smaller linear expansion coefficient than nickel over the first nickel layer; forming a second nickel layer on the intermediate layer to form a conductive film having a two- or three-stratum structure; arbitrarily subjecting the whole substrate to a process to make nickel passive; forming an electroformed layer on the conductive film by an electroforming process; and separating the conductive film from the glass master.
    Type: Grant
    Filed: August 16, 1994
    Date of Patent: October 17, 1995
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Hitoshi Isono, Hirotoshi Takemori
  • Patent number: 5455074
    Abstract: A method of preparing a laminate having increased peel strength and solvent resistance which involves (A) applying an adhesive composition to a surface of a first sheet; (B) exposing the adhesive composition on the surface of the first sheet to incoherent, pulsed ultraviolet radiation from a dielectric barrier discharge excimer lamp; (C) bringing a surface of a second sheet in contact with the adhesive composition-bearing surface of the first article; and (D) allowing the adhesive composition to cure. The incoherent, pulsed ultraviolet radiation has a single narrow wavelength band within the range of from about 260 to about 360 nanometers. The adhesive composition includes from about 94 to about 60 percent by weight of a cycloaliphatic diepoxide, from about 1 to about 10 percent by weight of a cationic photoinitiator, and from about 5 to about 30 percent by weight of a vinyl chloride-vinyl acetate-vinyl alcohol terpolymer, all based on the weight of adhesive composition.
    Type: Grant
    Filed: December 29, 1992
    Date of Patent: October 3, 1995
    Assignee: Kimberly-Clark Corporation
    Inventors: Ronald S. Nohr, John G. MacDonald
  • Patent number: 5273822
    Abstract: A fibrous electrically-conductive filler comprises fibrous aluminum borate as a core material and a layer of a electrically-conductive substance which covers the core material or comprises fibrous aluminum borate as a core material, a layer of titanium oxide which covers the fibrous aluminum borate and a layer of a electrically-conductive substance which covers the titanium oxide layer. The fibrous electrically-conductive filler can be prepared by a process comprising the step of directly forming a layer of a electrically-conductive substance doped with antimony or fluorine on the surface of fibrous aluminum borate, or the steps of forming, on the surface of the fibrous aluminum borate, an intermediate layer of titanium oxide in an amount ranging from 2 to 50% by weight on the basis of the weight of the fibrous aluminum borate and then forming a layer of a electrically-conductive substance doped with antimony or fluorine on the surface of fibrous aluminum borate.
    Type: Grant
    Filed: November 26, 1991
    Date of Patent: December 28, 1993
    Assignees: Mitsui Mining & Smelting Co., Ltd., Metallgesellschaft Aktiengesellschaft
    Inventors: Takao Hayashi, Norihiro Sato, Chikara Omotani, Manabu Hosoi, Nobuyoshi Kasahara, Wolf-Dieter Griebler, Jorg Hocken, Gunther Rudolph
  • Patent number: 5246782
    Abstract: A laminate has at least two layers, at least one of which comprises a polymer having more than one perfluorocyclobutane group. Such polymers impart qualities of enviornmental or protection, chemical and solvent resistance, hydrolytic stability, lubricity, low dielectric, hydrostatic stability, weatherability, flame resistance, chemical resistance, hydrolytic stability, lubricity, environmental protection, scratch resistance, solvent resistance, surface passivation, water repellancy, lower surface refractive index, lower surface coefficient of friction, fluid barrier properties, oil repellancy, thermal stability, and/or reduced moisture pick-up. Additionally, the coatings are optically clear, easy to apply either neat, in a solvent or otherwise, have relatively low cure temperatures for their temperature resistance, and exhibit insulating and planarizing capabilities.
    Type: Grant
    Filed: December 10, 1990
    Date of Patent: September 21, 1993
    Assignee: The Dow Chemical Company
    Inventors: Alvin P. Kennedy, Larry D. Bratton, Zdravko Jezie, Eckel R. Lane, Donald J. Perettie, W. Frank Richey, David A. Babb, Katherine S. Clement
  • Patent number: 5102736
    Abstract: A process for the manufacture of reflecting glass comprises implantation of ions of selected metal elements under selected conditions of temperature, energy and dosage in a glass substrate to obtain a product which has characteristics of light reflection and transmission rendering it suitable for advantageous use in the fields of vehicles and building construction.
    Type: Grant
    Filed: November 28, 1990
    Date of Patent: April 7, 1992
    Assignee: Societa Italiana Vetro-SIV-S.p.A.
    Inventors: Peter Townsend, Liberto Massarelli
  • Patent number: 5079100
    Abstract: Engine components of steel or superalloy subject to wear from alternating friction at medium temperatures in the region of 700.degree. C. are provided with a protective wear-resistant coating bya) electrophoretic deposition of a metal-ceramic structure comprising a mixture of from 85% to 50% of metallic powder and from 15% to 50% of ceramic powder, the metallic powder being a cobalt-based superalloy of type KC 25 NW or of M Cr Al Y wherein M represents at least one metal chosen from the group consisting of Ni, Co and Fe with the possible addition of Ta, and the ceramic powder being an oxide such as Al.sub.2 O.sub.3 or Cr.sub.2 O.sub.3, a carbide such as SiC or Cr.sub.3 C.sub.2, a nitride such as BN or TiN, or a boride such as TiB.sub.2 ;b) electrolytic pre-nickeling said deposit in an electrolysis bath at a pH between 6 and 8, andc) electrolytic nickeling said pre-nickeled deposit in an acid bath of sulphamate type.
    Type: Grant
    Filed: November 9, 1989
    Date of Patent: January 7, 1992
    Assignee: Societe Nationale d'Etude et de Construction de Motors d'Aviation
    Inventors: Martine Descamp, Yves C. L. A. Honnorat, Michel M. Ruimi
  • Patent number: 5057379
    Abstract: A coating for a heat engine part, particularly a turbo-machine part made of superalloy, comprises an electrophoretically deposited metallic structure of cellular form with uniformly disposed cells of predetermined size, the structure preferably being composed of M, Cr, Al, and Y, where M denotes Ni, Co, Fe and mixtures thereof. The cellular metallic structure is consolidated by a sintering treatment, which may be reactive, or metallization, preferably in the vapor phase, and the coating is completed by a ceramic material applied by plasma spraying.
    Type: Grant
    Filed: May 23, 1988
    Date of Patent: October 15, 1991
    Assignees: Societe Nationale d'Etude et de Construction de Moteurs d'Aviation "S.N.E.C.M.A.", Association pour la Recherche et le Developpement des Methodes et Processus Industriels A.R.M.I.N.E.S.
    Inventors: Dominique M. M. Fayeulle, Jean-Paul Henon, Rene J. Morbioli
  • Patent number: 4999231
    Abstract: Method to enhance the electrical conductivity of a carbon-containing film material such as a hot melt for carpet backing. The method involves applying a plurality of arcs across the surface of the film passing under a plurality of electrodes to create a plurality of small crater-like holes in the surface of the film. The film material may be adhered to a carpet material and the crater-like holes acting to increase the anti-static property of the carpet.
    Type: Grant
    Filed: February 5, 1990
    Date of Patent: March 12, 1991
    Assignee: Milliken Research Corporation
    Inventor: James E. Fowler
  • Patent number: 4973526
    Abstract: The present invention relates to a method of forming a ceramic or ceramic-like coating on a substrate, especially electronic devices, as well as the substrate coated thereby. The method comprises coating said substrate with a solution comprising a solvent, hydrogen silsesquioxane resin and a modifying ceramic oxide precursor selected from the group consisting of tantalum oxide precursors, niobium oxide precursors, vanadium oxide precursors, phosphorous oxide precursors and boron oxide precursors. The solvent is then evaporated to thereby deposit a preceramic coating on the substrate. The preceramic coating is then ceramified by heating the to a temperature of between about 40.degree. C. and about 1000.degree. C. This coating, moreover, may be covered by additional passivation and barrier coatings.
    Type: Grant
    Filed: February 15, 1990
    Date of Patent: November 27, 1990
    Assignee: Dow Corning Corporation
    Inventor: Loren A. Haluska
  • Patent number: 4686080
    Abstract: A composite compact component made of a composite compact consisting of a diamond or BN powder bonded to a hard sintered alloy base during a sintering operation, and a substrate composed of steel or a hard sintered alloy bonded to the base of the composite compact through a high strength filler metal or alloy having a melting point of at least the liquidus point of the hard sintered alloy base. A process of making set composite compact component is also disclosed as well as a drill bit containing said composite compact component and variations thereof.
    Type: Grant
    Filed: December 9, 1985
    Date of Patent: August 11, 1987
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Akira Hara, Masaya Miyake, Shuji Yazu
  • Patent number: 4678547
    Abstract: An anodized memory disk substrate is disclosed, which is characterized in having an anodic film having excellent heat resistance and hardness and having a thickness of not less than 3 .mu.m on the surface of aluminum or an aluminum alloy substrate imparted thereto by means of chromic acid-sulfuric acid mixture. The method described therefor is that, after the formation of anodic film having a film thickness of not less than 4 .mu.m on the surface of substrate, polishing is carried out so as to leave behind the anodic film having a film thickness of at least 3 .mu.m. Heat treatment may be made before or after the polishing.
    Type: Grant
    Filed: September 4, 1986
    Date of Patent: July 7, 1987
    Assignee: Furukawa Aluminum Co., Ltd.
    Inventors: Mitsuya Miyamoto, Yasuyuki Ooseki, Motohiro Nabae
  • Patent number: 4608131
    Abstract: In the process for the anodic oxidation of mechanically, chemically and/or electrochemically roughened aluminum or of one of its alloys, an aqueous electrolyte, which is free from H.sub.2 SO.sub.4 and contains H.sub.3 PO.sub.4 and Al.sup.+3 ions is used. The process parameters are: an electrolyte content of 25 g/l to 500 g/l of H.sub.3 PO.sub.4 and at least 5 g/l of Al.sup.+3 ions, a treatment time of 5 seconds to 500 seconds, a current density of 1 A/dm.sup.2 to 30 A/dm.sup.2 and a temperature of 35.degree. C. to 95.degree. C. The Al.sup.+3 ion source in particular is a salt of aluminum having a phosphoroxo anion, such as AlPO.sub.4. The material prepared in accordance with this invention is preferably employed as a support material for offset printing plates which carry a radiation-sensitive layer.
    Type: Grant
    Filed: April 10, 1985
    Date of Patent: August 26, 1986
    Assignee: Hoechst Aktiengesellschaft
    Inventor: Michael Brenk
  • Patent number: 4395465
    Abstract: A magnetic recording medium comprising(a) a flexible substrate of a polymeric material,(b) a first magnetic layer of a ferromagnetic metal deposited on the substrate by an ionized cluster beam deposition method, and(c) a second magnetic layer of a ferromagnetic metal deposited on the first magnetic layer by a high-vacuum ion plating deposition method, and a process for producing a magnetic recording medium which comprisesimparting a kinetic energy in the range of 100 eV to 10 KeV to an ionized cluster composed of ferromagnetic metal atoms in a high vacuum corresponding to a pressure of 8.times.10.sup.-4 to 1.times.10.sup.-10 torr and impinging the resulting ionized cluster beam against a flexible substrate of a polymeric material to deposit a first magnetic layer of the ferromagnetic metal on the substrate, andimparting a kinetic energy in the range of 1 eV to 10 KeV to atom ions of a ferromagnetic metal by an ion plating method in a high vacuum corresponding to a pressure of 8.times.10.sup.-4 to 1.times.10.
    Type: Grant
    Filed: August 7, 1981
    Date of Patent: July 26, 1983
    Assignee: Sekisui Kagaku Kogyo Kabushiki Kaisha
    Inventors: Toshinori Takagi, Shinsaku Nakata, Yoichi Mikami, Masahiro Hotta, Yoshiyuki Fukumoto
  • Patent number: 4291244
    Abstract: A process for preparing polymer electrets comprising the following steps:(a) providing two electrodes in a deposition zone, said electrodes being in a spaced relationship to one another, having opposing surfaces, and being connected to an external voltage source capable of impressing an intense electric field between the opposing surfaces;(b) providing a dipolar substituted p-xylylene monomer vapor in sufficient amount to coat the opposing surfaces of the electrodes;(c) activating the power source; and(d) introducing the vapor from step (b) into the deposition zone, said zone being under vacuum and at a temperature at which the vapor will condense,whereby the vapor condenses on the opposing surfaces of the electrodes, the monomer polymerizing to parylene, coating said surfaces, and forming electrets.
    Type: Grant
    Filed: September 4, 1979
    Date of Patent: September 22, 1981
    Assignee: Union Carbide Corporation
    Inventors: William F. Beach, Dennis M. Mahoney
  • Patent number: 4291245
    Abstract: A process for preparing polymer electrets comprising the following steps:(a) providing a parylene film having one side affixed to a metal layer and grounding said metal layer;(b) charging the free side of the film with a direct current corona, the charge being of sufficient magnitude to convert the film to an electret;(c) providing p-xylylene monomer vapor in sufficient amount to coat the charged film; and(d) introducing the vapor from step (c) and the electret into a deposition zone, said zone being under vacuum and at a temperature at which the vapor will condense, whereby the electret is conformally coated with parylene.
    Type: Grant
    Filed: September 4, 1979
    Date of Patent: September 22, 1981
    Assignee: Union Carbide Corporation
    Inventors: Thomas E. Nowlin, Curt R. Raschke
  • Patent number: 4273983
    Abstract: An improved method for resistance welding two metallic articles, made of dissimilar metals which form brittle intermetallic compounds when melted together. A first one of the metallic articles is provided with a tapered, flat-topped projection which is pressed against the other metallic article. The first article preferably is composed of the metal most difficult to melt, as determined by the four parameters of melting point, electrical resistance, heat conductivity and specific heat.
    Type: Grant
    Filed: July 17, 1979
    Date of Patent: June 16, 1981
    Assignee: Toyota Jidosha Kogyo Kabushiki Kaisha
    Inventors: Masahiro Ogawa, Tugio Mizobe
  • Patent number: 4237183
    Abstract: A process for the surface treatment of a synthetic resin lens comprising applying to the surface of a lens body made of synthetic resin such as allyl resin or the like a coating film of glass by a high-vacuum electric-field vapor deposition treatment. The glass coated lens body may then be formed with an anti-reflection coating film of magnesium fluoride or the like, also by a high-vacuum electric-field vapor deposition treatment.
    Type: Grant
    Filed: April 7, 1978
    Date of Patent: December 2, 1980
    Assignee: Nihon Shinku Gijutsu Kabushiki Kaisha
    Inventors: Junichi Fujiwara, Kazuo Nakamura
  • Patent number: 4024044
    Abstract: A cathode adapted for the electrolysis of water or an aqueous solution of an alkali metal halide salt because it gives prolonged lowering of hydrogen overvoltage is provided by an electrically conductive substrate bearing on its surface a coating produced by melt spraying an admixture of particulate nickel or cobalt and particulate aluminum and then leaching out the aluminum.
    Type: Grant
    Filed: September 15, 1975
    Date of Patent: May 17, 1977
    Assignee: Diamond Shamrock Corporation
    Inventors: James R. Brannan, Irving Malkin