Solid Particles Or Atomized Liquid Applied Patents (Class 427/475)
  • Patent number: 7247353
    Abstract: A method and a device for contactless application of a coating on a three dimensionally distributed surface (14;24;34;44;54;74;84;104). The method comprises application of electrically charged particles (15;25;35;55;65;75;85;105) in such positions on said surface as to form a predetermined pattern, by guiding each of said particles individually to a predetermined position on said surface. The guiding is made by means of an adjustable electric field (12;22;32;42;52;72;82;102) having flux lines with a longitudinal direction extending through said surface, whereby said particles form said coating according to said predetermined pattern on said surface.
    Type: Grant
    Filed: July 9, 2003
    Date of Patent: July 24, 2007
    Assignee: Nolato AB
    Inventor: Lars Persson
  • Patent number: 7238394
    Abstract: In a powder coating apparatus a pulse signal S2 of a low voltage generated by a pulse signal generation circuit (7) is boosted to a high voltage by means of a high voltage impression circuit (8), so that it is impressed upon corona electrodes (5). As a result, a corona discharge is intermittently generated from the corona electrodes (5) toward an object to be coated, whereby powder coating material sprayed from a nozzle opening of a gun main body in a forward direction is charged with negative ions developed by the corona discharge, whereafter it is directed toward the object to be coated, and is deposited on a surface of the object.
    Type: Grant
    Filed: November 5, 2002
    Date of Patent: July 3, 2007
    Assignee: Nihon Parkerizing Co., Ltd.
    Inventors: Tadao Morita, Hiroki Murai, Kosei Yabe, Akira Nakamura
  • Patent number: 7238390
    Abstract: The purpose of the invention is a coating precursor comprising a silicone resin and a mineral filler capable of chemically reacting so as to produce a solid layer on a substrate and a cohesive refractory layer after a calcination operation. The precursor may also include an additive capable of reducing its viscosity. Another purpose of the invention is a method for coating a given surface of a substrate with at least one refractory layer containing silicon in which the substrate is coated with a coating precursor according to the invention so as to form a green layer and a heat treatment is carried out to calcine the said green layer and to form a cohesive refractory layer. The invention is a means of obtaining a protective coating capable of resisting oxidising environments, liquid metal and a solid or molten salt.
    Type: Grant
    Filed: October 14, 2002
    Date of Patent: July 3, 2007
    Assignees: Aluminium Pechiney, Pechiney Rhenalu
    Inventors: Airy-Pierre Lamaze, Christian Barthelemy, Thomas Spadone, Robert Rey-Flandrin
  • Patent number: 7223444
    Abstract: A fast method of creating nanostructures comprising the steps of forming one or more electrically-charged regions (5) of predetermined shape on a surface (1) of a first material, by contacting the regions with a stamp for transferring electric charge, and providing electrically charged nanoparticles (7) of a second material, and permitting the particles to flow in the vicinity of the regions, to be deposited on the regions.
    Type: Grant
    Filed: May 4, 2001
    Date of Patent: May 29, 2007
    Assignee: QuNano AB
    Inventors: Knut Wilfried Deppert, Carl Martin Hall Magnusson, Lars Ivar Samuelson, Thomas Johannes Krinke
  • Patent number: 7223445
    Abstract: A process for the deposition of particulate material of a desired substance on a surface includes: (i) charging a particle formation vessel with a compressed fluid; (ii) introducing into the particle formation vessel a first feed stream comprising a solvent and the desired substance dissolved therein and a second feed stream comprising the compressed fluid, wherein the desired substance is less soluble in the compressed fluid relative to its solubility in the solvent and the solvent is soluble in the compressed fluid, and wherein the first feed stream is dispersed in the compressed fluid, allowing extraction of the solvent into the compressed fluid and precipitation of particles of the desired substance; (iii) exhausting compressed fluid, solvent and the desired substance from the particle formation vessel at a rate substantially equal to the rate of addition of such components to the vessel in step (ii) through a restrictive passage to a lower pressure whereby the compressed fluid is transformed to a gaseous
    Type: Grant
    Filed: March 31, 2004
    Date of Patent: May 29, 2007
    Assignee: Eastman Kodak Company
    Inventors: Rajesh V. Mehta, Ramesh Jagannathan, Seshadri Jagannathan, Kelly S. Robinson, Karen L. Pond, Bradley M. Houghtaling
  • Patent number: 7220456
    Abstract: A process for the patterning of a desired substance on a surface includes: (i) charging a particle formation vessel with a compressed fluid; (ii) introducing into the particle formation vessel a first feed stream comprising a solvent and the desired substance dissolved therein and a second feed stream comprising the compressed fluid, wherein the desired substance is less soluble in the compressed fluid relative to its solubility in the solvent and the solvent is soluble in the compressed fluid, and wherein the first feed stream is dispersed in the compressed fluid, allowing extraction of the solvent into the compressed fluid and precipitation of particles of the desired substance; (iii) exhausting compressed fluid, solvent and the desired substance from the particle formation vessel at a rate substantially equal to a rate of addition of such components to the vessel in step (ii) through a restrictive passage to a lower pressure whereby the compressed fluid is transformed to a gaseous state, and wherein the re
    Type: Grant
    Filed: March 31, 2004
    Date of Patent: May 22, 2007
    Assignee: Eastman Kodak Company
    Inventors: Rajesh V. Mehta, Ramesh Jagannathan, Seshadri Jagannathan, David J. Nelson
  • Patent number: 7217444
    Abstract: A system for electrostatic powder coating irregular shaped, three-dimensional articles with 10 ?m average diameter powder particles. A supply of powder particles are triboelectrically charged and transported onto one or more donor rolls without the need from fluidization of the powder particles. The charged powder particles on the one or more donor rolls are metered to provide a uniform layer thereon. A combination of AC electric fields and/or air jet detach the powder particles from the one or more donor rolls and produce a powder cloud that is directed to the grounded article to be coated. A layer of powder particles coats the outer surface of the article, and the layer is subsequently cured to form a permanent and durable film on the article.
    Type: Grant
    Filed: June 29, 2004
    Date of Patent: May 15, 2007
    Assignee: Xerox Corporation
    Inventors: Dan A. Hays, Jack T. Lestrange
  • Patent number: 7211615
    Abstract: A composition containing from 88 to 99.99% by weight of a polyamide, a compound of a polyamide and mixtures of these, and from 0.01 to 0.25% by weight of a flow aid where the drying loss from the flow aid after 5 days of conditioning at a relative humidity of 95% is less than or equal to 1%, determined by ISO 787/2.
    Type: Grant
    Filed: November 5, 2003
    Date of Patent: May 1, 2007
    Assignee: Degussa AG
    Inventors: Franz-Erich Baumann, Sylvia Monsheimer, Maik Grebe, Wolfgang Christoph, Dirk Heinrich, Holger Renners, Heinz Scholten, Thomas Schiffer, Joachim Muegge, Johannes Chiovaro
  • Patent number: 7205027
    Abstract: A powder coating method that provides enhanced finish characteristics to a powder coated object. The object to be powder coated is vibrated such that the powder readily flows on the surface of the object. The improved flow of the applied powder results in a powder coated object having enhanced, or otherwise superior finish characteristics. The method works with existing powder coating methods, systems, and materials and the vibration may be applied before, during, and/or after the powder is applied, i.e., during heating and/or curing. Additionally, the vibrations may be produced by a variety of means and/or methods including direct mechanical contact (i.e., a vibrating plate), indirect mechanical contact (i.e., a vibrating hang wire), and/or indirect non-contact (i.e., acoustic) methods.
    Type: Grant
    Filed: September 27, 2004
    Date of Patent: April 17, 2007
    Inventor: Brandyn Brosemer
  • Patent number: 7186445
    Abstract: A method for preliminary treatment of particles of a powder in a dry surface treatment process before applying the powder particles on a surface of a substrate by utilizing an electric field created by electrodes. The Electrodes are located at opposite sides of the substrate in such a way that at least one first electrode is located at the side of the substrate to be coated, and at least one second electrode is located at the opposites side of the substrate. The particles of the powder are pre-charged before bringing them into the electric field.
    Type: Grant
    Filed: March 11, 2003
    Date of Patent: March 6, 2007
    Assignee: Metso Paper, Inc.
    Inventors: Kaisa Putkisto, Juha Maijala, Veli Käsmä
  • Patent number: 7186444
    Abstract: A powdery layer is formed on a first side of a web (W) which serves as a substrate by applying electrically charged particles on the web while a rotating grounding electrode is located at a second side of the web.
    Type: Grant
    Filed: March 11, 2003
    Date of Patent: March 6, 2007
    Assignee: Metso Paper, Inc.
    Inventors: Kaisa Putkisto, Juha Maijala, Veli Käsmä
  • Patent number: 7160573
    Abstract: A method of forming a color filter is provided. The method includes providing a mixture of a color filter material and a compressed fluid; providing at least a partially controlled environment for retaining a substrate, the at least partially controlled environment being in fluid communication with the mixture of the color filter material and the compressed fluid; providing a shadow mask in close proximity to the substrate retained in the at least partially controlled environment; and chargably releasing the mixture of the color filter material and the compressed fluid into the at least partially controlled environment, wherein the color filter material becomes free of the compressed fluid prior to contacting the substrate at locations defined by the shadow mask thereby forming a patterned deposition on the substrate.
    Type: Grant
    Filed: June 12, 2003
    Date of Patent: January 9, 2007
    Assignee: Eastman Kodak Company
    Inventors: Sridhar Sadasivan, Ramesh Jagannathan, Seshadri Jagannathan, Rajesh Mehta, David J. Nelson, Glen C. Irvin, Jr.
  • Patent number: 7153585
    Abstract: The invention concerns to the use of a powder comprising 99.95 to 95% of at least one polyamide and 0.05 to 5% of at least one silane for coating metals. This powder may be prepared by simple dry blending of the constituents. The silane can also be added to the molten polyamide in a mixing device and the resulting product reduced to powder. The addition of silane makes it possible to significantly improve electrostatic application by preventing a substantial portion of the powder from falling off during the electrostatic discharge which follows application, while providing lasting adhesion between the coating and metal. Advantageously, the silane is chosen from aminopropyltriethoxysilane and aminopropyltrimethoxysilane. The invention also concerns a method of coating an object with a film resulting from melting a thin layer of the powder.
    Type: Grant
    Filed: December 13, 2002
    Date of Patent: December 26, 2006
    Assignee: Arkema France
    Inventors: Marc Audenaert, Denis Huze, Emmanuel Rastelletti
  • Patent number: 7153538
    Abstract: A method of coating a pharmaceutical substrate includes the steps of applying an active coating material to a surface of the substrate to form an active coating layer and applying a cover coating material onto the active coating layer to form a cover coating layer. The active coating layer is substantially completely covered by the cover coating layer.
    Type: Grant
    Filed: September 26, 2001
    Date of Patent: December 26, 2006
    Assignee: Phoqus Pharmaceuticals Limited
    Inventors: Steven R. Brown, Linda A. Reeves, John N. Staniforth
  • Patent number: 7150899
    Abstract: The present invention provides a method for forming a coating film on a plastic substrate which comprises: (1) coating the plastic substrate with an aqueous white primer (A) having a water content of 15 to 48 wt. % to form a coating film having an L* value of 80 or more, (2) heating the coating film of the primer (A) to adjust the water content of the film to 1 to 10 wt. % and the surface electrical resistivity value of the film to less than 109 ?/square, (3) electrostatically coating the coating film of the primer (A) with a thermosetting clear colored coating composition (B), (4) electrostatically coating the uncured coating film of the coating composition (B) with a thermosetting clear coating composition (C), and (5) baking the three-layer coating film to obtain a cured multilayer coating film having an N value of 8.5 or more.
    Type: Grant
    Filed: October 28, 2003
    Date of Patent: December 19, 2006
    Assignee: Kansai Paint Co., Ltd.
    Inventors: Hiroyuki Onoyama, Yasuyuki Kataoka, Shuichi Nakahara, Yoshizumi Matsuno
  • Patent number: 7147898
    Abstract: The invention provides processes for coating the surface of substrates such as a sheet, film, foam, fiber, etc., with a curable liquid resin or solution of curable resin, then in one embodiment, stably attaching a superabsorbent polymeric powder to such resin, and then curing the resin to form a coated superabsorbent product. Such substrates may include polymeric materials. Other process embodiments utilizing curable and thermoplastic resinous powders may be used instead of curable liquid resins and resulting products are included in the invention. The coated product has reduced particle agglomeration and particle loss due to the curing or melting steps. The thin, superabsorbent powder adhered, films may be used as an absorbent core for a wide variety of absorbent products. The product can be interposed between sheets to form disposable absorbent products such as diapers, bandages, water and nutrient retention elements, erosion control devices and elements thereof, etc.
    Type: Grant
    Filed: February 4, 2003
    Date of Patent: December 12, 2006
    Assignee: Synergistic Ventures, Inc.
    Inventors: Jeno Muthiah, Gerald K. White, Duane R. Rubash
  • Patent number: 7144597
    Abstract: An apparatus for electrostatically applying a powder material to a solid dosage from includes a source (1) of charged powder material, a support assembly (2) for supporting the solid dosage form (3) with a front face in the vicinity of the source of powder material and facing the source of powder material, the support assembly (2) including an electrically conducting member (5) in the vicinity of the rear face of the solid dosage form and an electrically conducting shield (8) disposed closely around the solid dosage from (3) between the front face and the rear face of the solid dosage form, and means (4) for creating a potential difference between the source of powder material and the electrically conducting member and for maintaining the electrically conducting shield at a potential more similar to that of the source of powder material than to that of the electrically conducting member.
    Type: Grant
    Filed: January 17, 2003
    Date of Patent: December 5, 2006
    Assignee: Phoqus Pharmaceuticals Limited
    Inventors: Marshall Whiteman, Martin David Hallett, David Hoover Feather, Douglas Howard Nelson, Jack Michael Gazza
  • Patent number: 7083830
    Abstract: A process for the production of special effect base coat/clear coat two-layer coatings on substrates by application of a special effect base coat layer of a liquid special effect base coat onto the substrate in one or more successive spray passes, optional drying or curing of the special effect base coat layer, followed by application of a clear coat layer and curing of the clear coat layer, wherein, at least in the final spray pass, application of the special effect base coat proceeds by electrostatically-assisted high-speed rotary application using at least one high-speed rotary coating device comprising a high-speed rotary bell, wherein an electrode ring is rotatably positioned around the high-speed rotary bell and used for external electrostatic charging of the effect base coat spray mist and performs rotational movements about the common axis of rotation with the high-speed rotary bell.
    Type: Grant
    Filed: October 2, 2003
    Date of Patent: August 1, 2006
    Assignee: E. I. duPont de Nemours and Company
    Inventor: Peter Minko
  • Patent number: 7078046
    Abstract: Disclosed are electrostatically-sprayable topical compositions, more particularly topical emulsion compositions, and methods of treating the skin by electrostatic application of such compositions. In one aspect the composition comprises an insulating external phase comprising one or more insulating materials and a conductive internal phase comprising one or more conductive materials. The compositions preferably also contain one or more particulate materials to be deposited on the skin, e.g., pigments, inert absorbents and the like.
    Type: Grant
    Filed: July 31, 2000
    Date of Patent: July 18, 2006
    Assignee: The Procter & Gamble Company
    Inventors: Thomas Elliot Rabe, Helen Shu Ying Yen, June Turkanis Brennock, Caroline Becque Martello
  • Patent number: 7048972
    Abstract: After forming a primary powder bed (i.e., powder layer) at a toothed portion of an article, such as a gear or a spline shaft, by electrostatic powder coating process, the powder bed/layer is removed from crests of teeth in the toothed portion by a specified thickness by scraping it off while sucking up the scraped powder. Next, the electrostatic powder coating process is performed again to form a secondary powder bed/layer over the entire surface of the toothed portion. Then, the primary and secondary powder beds/layers are melted or fused by induction heating to thereby form a coating film of a substantially uniform thickness.
    Type: Grant
    Filed: June 17, 2004
    Date of Patent: May 23, 2006
    Assignee: Koyo Seiko Co., Ltd.
    Inventors: Kouji Kitahata, Takeshi Tojo, Katsura Koyagi, Takanori Kurokawa, Atsuo Suehiro, Yoshifumi Niide, Kouichi Taniguchi, Shingo Nakamura
  • Patent number: 7014883
    Abstract: A method for forming a composite structure is disclosed. The method includes four steps. Step one calls for applying a primer (104) to a surface (102) of a tool (100). Step two requires applying a coating (106) to primer (104). Step three calls for curing primer (104) and coating (106). The last step calls for forming the composite structure on tool (100). More specifically, primer (104) may be a powdered primer, and coating (106) may be a powdered fluorinated organic compound.
    Type: Grant
    Filed: January 14, 2004
    Date of Patent: March 21, 2006
    Assignee: Northrop Grumman Corporation
    Inventors: Ernie R. Silva, Jerry W. Brimer, Sandra J. Stash
  • Patent number: 7008668
    Abstract: An apparatus and method for locking a gun. The apparatus includes a dummy round configured for insertion into a firing chamber of a gun, a locking component configured for coupling with the dummy round, and an elongated sleeve rotatably coupled with the locking component. The locking component includes a keyed head positioned within a longitudinal channel of the elongated sleeve. The locking component and elongated sleeve are insertable through the discharge end of a gun's barrel. An actuating mechanism, such as a key is insertable through the channel of the elongated sleeve to engage with the keyed head and rotate the locking mechanism relative to the elongated sleeve. Rotation of the locking mechanism effects a friction lock between the locking mechanism and the dummy round.
    Type: Grant
    Filed: November 19, 2001
    Date of Patent: March 7, 2006
    Assignee: Phoqus Pharmaceuticals Limited
    Inventors: John E. Hogan, Trevor Page, Linda Reeves, John N. Staniforth
  • Patent number: 6991831
    Abstract: The invention relates to a device for producing singlet oxygen, comprising a housing forming a chamber which has at least two opposite surfaces. One of said surfaces is transparent and the other is covered by a coating made from a dye excitable by light, and a light source for irradiating the surface covered with the dye. The surface covered with the dye is formed by a substrate comprising a finely roughened surface. The dye is introduced into the indentations of the finely roughened surface by polishing. The light source can be formed by light emitting diodes, whose light emission comprises a wavelength located within the range of maximum radiation absorption of the dye of the coated surface.
    Type: Grant
    Filed: September 28, 2001
    Date of Patent: January 31, 2006
    Assignee: Natural Energy Solutions, AG
    Inventor: Jörg Klemm
  • Patent number: 6984420
    Abstract: A method for color matching using a combination of two or more powder coatings having different colors from each other to give a target color, wherein lightness, blending weight ratio and volume-average particle size of the powder coatings to be combined satisfy the following formula (I): ? i = 1 N ? ? ? L 0 - L i ? × W i × D i ? 1 ? ? 9 ? ? 0 ( I ) and a method for preparing a coating film comprising applying powder coatings combined by the above method to a substrate. According to this method, since a coating film having homogeneous color with low mottling is obtained from two or more powder coatings having different colors from each other, the method can be used as a simplified process for color matching using the powder coatings requiring only a few primary color powder coatings to be furnished.
    Type: Grant
    Filed: February 19, 2003
    Date of Patent: January 10, 2006
    Assignee: Nippon Paint Co., Ltd.
    Inventors: Shoichi Suzuki, Yukiya Sato, Kazuhiko Nakayama
  • Patent number: 6942901
    Abstract: A single or multi-component particulate tape and a method and apparatus for making the single or multi-component particulate tape. More particularly, the present invention relates to a single or multi-component particulate tape and method for making a single or multi-component particulate tape using the process of electrophoretic deposition. These tapes and tapes produced using these methods can be used to make single or multi-layer electronic devices such as capacitors, varistors, inductors, and the like, as well as structural laminate components. The method comprises casting a tape by electrophoretic deposition and also or alternatively depositing additional functional materials on or into the cast tape by electrophoresis.
    Type: Grant
    Filed: January 6, 2000
    Date of Patent: September 13, 2005
    Assignee: The Penn State Research Foundation
    Inventors: Jonathan Van Tassel, Clive A. Randall
  • Patent number: 6923979
    Abstract: Uniform portions of fine powders are deposited on a substrate by electrostatic attraction in which the charge of the electric field and polarity of the charged particles are varied repeatedly to form a buildup of powder on the carrier surface.
    Type: Grant
    Filed: April 27, 1999
    Date of Patent: August 2, 2005
    Assignee: Microdose Technologies, Inc.
    Inventors: Richard Fotland, John Bowers, William Jameson
  • Patent number: 6921559
    Abstract: A powder coating composition comprises a mixture of first and second component powder coating compositions which are separate, preferably widely separated, in a triboelectric reference series indicative of the extent to which powder coating compositions may be distinguishable from one another when electrically charged. The mixed powder coating composition is especially suitable for coating articles having recessed portions. A quantitative basis is given for determining the separation of the individual component compositions in the triboelectric reference series, and preferred minimum separation criteria are given.
    Type: Grant
    Filed: February 8, 2001
    Date of Patent: July 26, 2005
    Assignee: International Coatings Limited
    Inventors: Martyn P. Care, Gareth D. Crapper, Kevin J. Kittle
  • Patent number: 6921558
    Abstract: A method for powder coating articles includes the steps of preheating the article to a preheating temperature, coating the article with a polymeric powder coating having a cross-linking temperature that is above the preheating temperature and curing the article having the powder coating applied thereto at a curing temperature. The curing temperature is between the powder coating cross-linking temperature and the melting point temperature of the articles. A system for carrying out the coating method is disclosed as is an article made by the method.
    Type: Grant
    Filed: December 18, 2001
    Date of Patent: July 26, 2005
    Assignee: Illinois Tool Works, Inc.
    Inventors: David E. Fredericksen, George M. Vollrath, Algis P. Suopys, Guy L. Rosenthal
  • Patent number: 6919105
    Abstract: A process of retaining fine adsorbent particles such as carbon material or APS silica gel in the micro-cavities of a shaped fiber comprises the steps of continuously conveying a shaped fiber with micro-cavities to a charging arrangement where the fiber is electrostatically charged. The electrostatically charged fiber is then drawn through a reservoir of the fine adsorbent particles. As the fiber passes through the reservoir the fine particles adhere to the fiber and the micro-cavities thereof. Any excess particles are removed from the fiber outside the reservoir. Subsequently the shaped fiber loaded with fine adsorbent particles is collected for use in filter applications of one type or another such as cigarette filters, for example.
    Type: Grant
    Filed: January 6, 2003
    Date of Patent: July 19, 2005
    Assignee: Philip Morris USA Inc.
    Inventors: Lixin Luke Xue, Kent B. Koller, Qiong Gao
  • Patent number: 6913213
    Abstract: An electrostatic powder coating apparatus including a housing with an interior coating area for receiving a workpiece. The interior coating area includes a vortex inducing surface and a pressurized air input device directs air against the surface to form a swirling pattern of air around the workpiece. A powder introducer directs charged powder into the swirling pattern of air and the powder is then electrostatically attracted to the workpiece. The powder introducer may be a powder fluidizing bed disposed in the housing or other suppliers, such as electrostatic powder spray guns. In alternative embodiments, vortex generators in the form of tubular structures connected proximate the housing inlet and outlet have tangential ports for introducing positive pressure air or inducing vacuum in the tubular structures.
    Type: Grant
    Filed: April 22, 2004
    Date of Patent: July 5, 2005
    Assignee: Nordson Corporation
    Inventors: Christopher P. Bertellotti, Joseph Rogari
  • Patent number: 6896935
    Abstract: A method of forming a coating on an inner periphery of a tube with a cylindrical barrel, a mouth on one axial end of the barrel, and a shoulder located between the barrel and the mouth. The method involves holding the tube, and subsequently jetting powder into the tube from a spray gun, through a bottom side opening on the other axial end of said barrel. A first passage guides to the spray gun a first air stream together with the powder. A second passage feeds to the spray gun a second air stream with the powder. A third passage suction collects surplus powder through the tube mouth. A fourth passage suction collects surplus powder through the bottom side opening of the tube. At least one of the passages is subject to a feedback control such that flow rate and/or internal pressure therein are maintained at target levels.
    Type: Grant
    Filed: February 5, 2003
    Date of Patent: May 24, 2005
    Assignee: Taisei Kako Co., Ltd.
    Inventors: Taizo Kimura, Naoki Fujisawa
  • Patent number: 6896934
    Abstract: The present invention provides a composition for use in forming an abrasion-resistant easy-to-clean coating on a substrate. The composition according to the invention includes a mixture of a fluorocarbon polymer component and an enamel-forming component. The enamel-forming component includes at least a first lead-free and cadmium-free glass frit. The first lead-free and cadmium-free glass frit includes from about 30% to about 50% P2O5, from about 15% to about 30% Al2O3, and from about 2% to about 40% X2O where X=Na and/or K. The present invention also provides a method of forming an abrasion-resistant easy-to-clean coating on a substrate. The method includes applying the composition according to the invention to a substrate and sintering the applied composition to fuse an abrasion-resistant easy-to-clean coating to the substrate.
    Type: Grant
    Filed: May 14, 2001
    Date of Patent: May 24, 2005
    Assignee: Ferro France - S.A.R.L.
    Inventors: Alain Aronica, David Coutouly, Damian Macaya, Remy Caisse
  • Patent number: 6893725
    Abstract: To provide a decorative porcelain having a superior stereoscopic feeling and a transcription sheet. An in-glaze decoration piled decorative porcelain having a piled coloring material layer obtained on in-glaze painting on a glazing layer formed on a surface of a porcelain substrate layer, using a pile coloring material including an inorganic pigment and a glass flux. The in-glaze decoration piled decorative porcelain includes a glass layer of glass with a glass transition temperature of 450° C. to 550° C. between the glazing layer and the piled coloring material layer, with the glass transition temperature of glass flux in the piled coloring material being 550° C. to 700° C.
    Type: Grant
    Filed: June 28, 2001
    Date of Patent: May 17, 2005
    Assignee: Noritake Co., Limited
    Inventors: Hiromichi Hayashi, Takuya Kawamura
  • Patent number: 6890604
    Abstract: A method of applying a powder coating to a medium density fiberboard (MDF) or particleboard door includes attaching a first hanger to the door, providing an electrical source to the door through the first hanger, and conveying the door, via the first hanger, into a coating booth. The door is then powder-coated in the coating booth while being electrostatically charged. The powder-coated door is then cured to cause the powder to adhere to the door.
    Type: Grant
    Filed: May 13, 2002
    Date of Patent: May 10, 2005
    Assignee: Trio Industries Holdings, LLC
    Inventor: Evan R. Daniels
  • Patent number: 6875278
    Abstract: A powder atomizer comprises a rotatable powder conveying brush operably associated with a powder supply. A powder receptacle has an inlet and an outlet. The powder conveying brush extends along the inlet and supplies powder to the receptacle. A rotatable powder metering brush is operatively associated with the outlet and withdraws powder from the receptacle. A rotatable powder atomizing brush is operatively associated with and receives powder from the metering brush and discharges the powder. A shoe is operatively associated with the atomizing brush, and is pivotable about a pivot axis between a first and a second position.
    Type: Grant
    Filed: September 7, 2001
    Date of Patent: April 5, 2005
    Assignee: Material Sciences Corporation
    Inventors: Darrell A. Kerbel, Sang Rhee, Ted B. Kumzi, Don K. Sheldon, Deirk A. Feiner, Merethe Pepevnik, Bernard Y. Conyers, III
  • Patent number: 6863920
    Abstract: A powder coating control system comprising a plurality of gun controls associated with a like plurality of powder spray guns. Each of the gun controls stores a plurality of presets spray parameters. Each of the gun controls responds to part identification signals and part position signals to select in real time one of the stored presets of spray parameters and trigger its respective powder spray gun ON and OFF to apply a powder coating to the moving part in accordance with the selected set of spray parameters. The control system further permits a gun purge cycle to be programmed either before or after the powder coating process is executed. The control system automatically initializes and brings each of the gun controls to an operable state on-line with the system control.
    Type: Grant
    Filed: April 6, 2004
    Date of Patent: March 8, 2005
    Assignee: Nordson Corporation
    Inventors: Gerald W. Crum, Eddie W. Dixson, Jr., Charles L. Gatian, III, Jeanne Marie Leidy, William Mark Rucki, Joseph G. Schroeder, Cynthia Skelton-Becker
  • Patent number: 6844048
    Abstract: Provided is, among other things, a conductive inlay film comprising: a layer of dielectric film having a pattern of holes suitable to define selected regions to which particles will be deposited by electrostatic deposition; and a conductive element comprising polymer, which element comprises (a) a conductive film laminated against the dielectric film or (b) a conductive film embedded within the holes, the portion of the conductive element appearing within the holes comprising conductive inlays, wherein the conductive element is adapted to contact one or more electrode pads and provide electrical potentials at the selected regions, and wherein the dielectric film electrically isolates the selected regions.
    Type: Grant
    Filed: July 11, 2001
    Date of Patent: January 18, 2005
    Assignee: Sarnoff Corporation
    Inventors: Ramaswamy Murari, Jen-Chi Chen, Suggy S. Chrai
  • Patent number: 6830783
    Abstract: An electromagnetic-wave absorber comprising a base material and an electromagnetic-wave absorption layer provided on the base material. The electromagnetic-wave absorption layer contains at least i) a polymeric material having a glass transition temperature (Tg) of from −15° C. to 110° C. and a number-average molecular weight (Mn) of from 3,000 to 1,000,000 and ii) an inorganic material. Also provided is a process for producing the absorber.
    Type: Grant
    Filed: March 27, 2003
    Date of Patent: December 14, 2004
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tetsuro Fukui, Akira Unno, Yutaka Kagawa
  • Patent number: 6827634
    Abstract: A ultra fine particle film forming apparatus is provided which is capable of forming a ultra fine particle film which has ultra fine particles sufficiently bonded together, sufficient density, flat surface and uniform density. A planarized ultra fine particle film forming method for forming a planarized ultra fine particle film from a deposited film of ultra fine particles formed by supplying the ultra fine particles to a substrate, the method comprising one or more of a planarizing step of planarizing a surface of the deposited film of the ultra fine particles supplied to the substrate.
    Type: Grant
    Filed: December 29, 2000
    Date of Patent: December 7, 2004
    Assignee: Agency of Industrial Science and Technology
    Inventor: Jun Akedo
  • Publication number: 20040219301
    Abstract: An electrostatic powder coating apparatus including a housing with an interior coating area for receiving a workpiece. The interior coating area includes a vortex inducing surface and a pressurized air input device directs air against the surface to form a swirling pattern of air around the workpiece. A powder introducer directs charged powder into the swirling pattern of air and the powder is then electrostatically attracted to the workpiece. The powder introducer may be a powder fluidizing bed disposed in the housing or other suppliers, such as electrostatic powder spray guns. In alternative embodiments, vortex generators in the form of tubular structures connected proximate the housing inlet and outlet have tangential ports for introducing positive pressure air or inducing vacuum in the tubular structures.
    Type: Application
    Filed: April 22, 2004
    Publication date: November 4, 2004
    Applicant: Nordson Corporation
    Inventors: Christopher P. Bertellotti, Joseph Rogari
  • Patent number: 6811805
    Abstract: The invention provide a method for applying a coating to an ophthalmic lens or a mold for making the ophthalmic lens or a medical device other than ophthalmic lens. The method comprises spraying at least one layer of a coating liquid onto an ophthalmic lens using a spraying process selected from the group consisting of an air-assisted atomization and dispensing process, an ultrasonic-assisted atomization and dispensing process, a piezoelectric assisted atomization and dispensing process, an electro-mechanical jet printing process, a piezo-electric jet printing process, a piezo-electric with hydrostatic pressure jet printing process, and a thermal jet printing process. The coating can comprise a property/functionality pattern or a color image or combination of both.
    Type: Grant
    Filed: May 22, 2002
    Date of Patent: November 2, 2004
    Assignee: Novatis AG
    Inventors: Allen Gilliard, Lynn Cook Winterton, Rafael Victor Andino, John Lally
  • Patent number: 6805916
    Abstract: A tapered profile magnetic field pulsed laser deposition (PLD) system and method for depositing a thin film on a substrate are provided. The system includes a tapered pulsed coil arranged relative to a confinement magnetic device so that the plume discharged from the confinement magnetic device is collected and concentrated by an inwardly tapered surface of the tapered pulsed coil which causes the plume to be deflected towards a substrate on which the charged species are deposited to form the thin film. In yet a further aspect, a device for maintaining cleanliness of an interior of a deposition chamber laser entry window through which a laser beam enters and converges to a target is provided. A plume that is generated when a laser beam ablates the target is ionized as a result of radioactive members such that the ionized plume is deflected toward one of the first members (e.g., metal plates) as opposed to coating the interior of the laser entry window.
    Type: Grant
    Filed: July 17, 2003
    Date of Patent: October 19, 2004
    Assignee: Research Foundation of the City University of New York
    Inventor: Fred J. Cadieu
  • Publication number: 20040202797
    Abstract: A method of manufacturing electric machines comprised of geometrically patterned arrays of permanent magnets, soft magnetic materials, and electrical conductors deposited by kinetic spraying methods directly atop a carrier. The magnets and planar coils of the present invention may be integrally formed atop carriers to form electrical machines such as motors, generators, alternators, solenoids, and actuators. The manufacturing techniques used in this invention may produce highly defined articles that do not require additional shaping or attaching steps. Very high-purity permanent and soft magnetic materials, and conductors with low oxidation are produced.
    Type: Application
    Filed: February 6, 2004
    Publication date: October 14, 2004
    Applicant: FORD GLOBAL TECHNOLOGIES, LLC
    Inventors: John Ginder, Robert McCune, Franco Leonardi
  • Patent number: 6803070
    Abstract: An apparatus and method for embedding particles into the polymer matrix of a medical device are disclosed. The apparatus may include an electrostatic spray nozzle adapted to direct a stream of nanoparticles dissolved in a solution toward a positive outlet. A medical device, mounted onto an electrode, can then be placed into or proximate the stream such that upon energization of the electrode, the charged particles are redirected from the outlet toward the electrode. By spacing the electrode and energizing the electrode appropriately, the charged particles can be accelerated to a degree sufficient to cause the charged particles to embed themselves into the polymer matrix of the medical device.
    Type: Grant
    Filed: December 30, 2002
    Date of Patent: October 12, 2004
    Assignee: SciMed Life Systems, Inc.
    Inventor: Jan Weber
  • Patent number: 6800333
    Abstract: In preferred aspects the present invention provides: (i) a method of and apparatus for depositing material, preferably a film, on a substrate, the method comprising the steps of: providing a substrate; heating the substrate; generating an aerosol comprising droplets of a material solution; providing a nozzle unit for delivering the aerosol to the substrate, the nozzle unit including at least one outlet through which a directed flow of the aerosol is delivered and at least one electrode; charging the aerosol droplets with a positive or negative charge; providing a flow of the aerosol through the nozzle unit so as to deliver a directed flow of the aerosol from the at least one outlet; and generating an electric field between the substrate and the at least one electrode such that the directed aerosol flow is attracted towards the substrate; and (ii) a method of and apparatus for fabricating a powder, preferably an ultrafine powder, the method comprising the steps of: providing a heated zone; generating an aeroso
    Type: Grant
    Filed: July 13, 2001
    Date of Patent: October 5, 2004
    Assignee: Innovative Materials Processing Technologies Limited
    Inventors: Kwang-Leong Choy, Bo Su
  • Patent number: 6800334
    Abstract: A powder coating composition incorporating a wax in post-blended form, the composition incorporating the wax and the same composition without the wax being separated, preferably widely separated, in a triboelectric reference series indicative of the extent to which powder coating compositions may be distinguishable from one another when electrically charged. The powder coating composition incorporating a wax in post-blended form is especially suitable for coating articles having recessed portions. A quantitative basis is given for determining separation in the triboelectric reference series, and preferred minimum separation criteria are given. The effects obtainable using post-blended wax may be enhanced by the use, as further post-blended additives, of a combination of aluminium oxide and aluminium hydroxide.
    Type: Grant
    Filed: December 12, 2002
    Date of Patent: October 5, 2004
    Assignee: International Coatings Limited
    Inventors: Martyn P. Care, Paul J. Tinmouth, Jae-Kyn Park
  • Patent number: 6797322
    Abstract: A method of reducing the formation of surface defects in a coated substrate includes providing coating powders at both the appearance surfaces and the non-appearance surfaces of the substrate. A method of coating a substrate includes machining the appearance surface of the substrate, machining the non-appearance surface of the substrate, disposing a first powder at the appearance surface of the substrate, and disposing a second powder at the non-appearance surface of the substrate. The powders are disposed at the surfaces by electrostatic deposition. A method of facilitating the adherence of a coating at an edge between two surfaces of a substrate includes configuring the edge to have a rounded surface.
    Type: Grant
    Filed: November 25, 2002
    Date of Patent: September 28, 2004
    Assignee: Rohm and Haas Company
    Inventor: Gordon L. Tullos
  • Patent number: 6797782
    Abstract: A process of producing particles for diagnostic reagent, including a step of polymerizing a polymerizable monomer in the presence of a matrix particle having a magnetic substance layer containing at least one of Fe2O3 and Fe3O4 on the surface thereof and having a mean particle size of 0.4-200 &mgr;m to form a polymer layer on the magnetic substance layer.
    Type: Grant
    Filed: March 21, 2003
    Date of Patent: September 28, 2004
    Assignee: JSR Corporation
    Inventors: Ichiro Ozaki, Satoshi Katayose, Mikio Hikata, Kejun Fan, Mitsuhiro Murata
  • Patent number: 6790483
    Abstract: A method produces patterned deposition on a substrate (14) from compressed fluid. A delivery system (12) cooperates with a controlled environment (30, 100, 200) retaining a substrate (14) for receiving precipitated functional material 44 along a fluid delivery path (13) from the delivery system (12). A mask (22) is arranged in close proximity to the substrate (14) for forming the patterned deposition on the substrate (14).
    Type: Grant
    Filed: December 6, 2002
    Date of Patent: September 14, 2004
    Assignee: Eastman Kodak Company
    Inventors: Ramesh Jagannathan, Suresh Sunderrajan, Seshadri Jagannathan, Glen C. Irvin, Jr., Sridhar Sadasivan, David J. Nelson, Rajesh V. Mehta, John E. Rueping
  • Patent number: 6790472
    Abstract: A method of filming a luminescent screen is disclosed which improves the light output of CRTs that contain printed phosphor lines. The method incorporates both the application and film formulation requirements and optionally includes in-line diagnostic techniques. The novel film formulation contains a lacquer and solvents, wherein one of the solvents is a non-solvent for the lacquer. The optional diagnostic technique include surface gloss measurements to characterize and monitor the process and provide predictive capability of CRT performance with respect to light output.
    Type: Grant
    Filed: October 25, 2001
    Date of Patent: September 14, 2004
    Assignee: Thomson Licensing S. A.
    Inventors: Victoria Ann Rebar, Bhanumurthy Venkatrama Subrahmanya Gunturi