Patents Examined by Yewebdar Tadesse
  • Patent number: 6852266
    Abstract: A method and apparatus for ultrasonic assisted deposition of a release agent onto a workpiece is disclosed. The release agent can be any fluorinated or non-fluorinated phosphorous-containing organic acid. The workpiece can be any workpiece desired to be coated with the release agent, such as a surface needing an anti-stick coating required in a plastic casting or injection mold. Metal oxide workpiece surfaces strongly bond to fluorinated phosphorus-containing organic acids. In particular, the present invention can deposit anti-stick coatings onto smooth or porous surfaces, such as anodized aluminum and its alloys, using ultrasonic assisted deposition.
    Type: Grant
    Filed: August 14, 2001
    Date of Patent: February 8, 2005
    Assignee: Korry Electronics Co.
    Inventors: Timothy R. Robinson, Leonard Y. Nelson
  • Patent number: 6852165
    Abstract: A powder spray apparatus is described including a powder booth with a scraper bar which reciprocates across the floor thereof to collect deposited overspray powder and supply it to intakes located at each end wall. The intakes are connected by a feed channel to one or more cyclone separators. An exhaust duct may also be provided for air-borne overspray powder which preferably forms part of the feed channel. Powder recovered from the cyclone separators may be passed to a common collection hopper by use of a venturi pump which transfers the powder from each separator to the hopper via a sieve located in a ventilated enclosure above the hopper.
    Type: Grant
    Filed: April 15, 2002
    Date of Patent: February 8, 2005
    Assignee: Nordson Corporation
    Inventors: James Ainsworth, Christopher Eastwood, Robert Perrin
  • Patent number: 6848391
    Abstract: A system for coating particulate material with temperature-sensitive materials is provided with heated containers, each having a continuous loop of supply and return lines. Each continuous loop is coupled with a spray manifold that is positioned closely adjacent a mixing vessel. The temperature-sensitive fluid is pumped through the continuous loops to maintain the desired temperature when the fluid is not being applied to the particulate material within the vessel. The separate loops prevent undesired cross-contamination. A simple scale assembly is used for metering out the fluid.
    Type: Grant
    Filed: June 24, 2003
    Date of Patent: February 1, 2005
    Inventor: James M. Allen
  • Patent number: 6849129
    Abstract: The paint-spraying apparatus exhibits a supply line 7 for coating material, extending from the color changer to the atomizer. Cut-off valves 26, 27 installed in the supply line delimit an insulating section 25 of said supply line, which insulating section is associated with means 28 to 32 for emptying and flushing said insulating section 25. A voltage divider 16 is connected in parallel to said insulating section 25. When colors are changed, the residual coating material present in said voltage divider 16 can be moved into the empty insulating section 25, after which it is forced by means of slugs back through the entire supply line 7 to the color changer 1, and is thus reclaimed.
    Type: Grant
    Filed: March 12, 2003
    Date of Patent: February 1, 2005
    Assignee: LacTec GmbH
    Inventors: Burkhard Bilz, Udo Klein, Joachim Kunkel, Winfried Ott
  • Patent number: 6849128
    Abstract: A device for producing a color filter includes a part for storing a solution in which a light transmitting material is dissolved, a part for feeding the solution to a tip of a flying electrode, a part for applying a voltage between the tip of the flying electrode and an electro-conductive material of a color filter substrate so as to form an electrostatic field, and a part for relatively shifting the tip of the flying electrode and the color filter substrate with respect to one another in at least one of a perpendicular direction and to a horizontal direction. The solution is formed into a stringy beam which is let to fly onto the color filter substrate so that the solution is injected into a concavity formed and surrounded by a black matrix on the color filter substrate, arid forms red, green and blue light emitting layers.
    Type: Grant
    Filed: June 3, 2003
    Date of Patent: February 1, 2005
    Assignee: Hitachi, Ltd.
    Inventors: Seiji Yonekura, Yoshinobu Fukano, Mamoru Okano, Yasuo Imanishi, Sukekazu Aratani, Yoshiharu Nagae
  • Patent number: 6843952
    Abstract: A method of producing a substrate for a plasma display panel by providing a rib on a base, which comprises the steps of contacting a rib precursor containing a first photo-setting initiator having a first absorption edge and a first photo-setting component closely with said base; filling a mold, obtained by photo-setting of a second photo-setting initiator having a second absorption edge whose wavelength is shorter than a wavelength corresponding to said first absorption edge of said first photo-setting initiator, with said rib precursor; exposing said rib precursor to light having a wavelength longer than a wavelength corresponding to said second absorption edge, thereby setting said rib precursor; and removing said mold.
    Type: Grant
    Filed: February 16, 2000
    Date of Patent: January 18, 2005
    Assignee: 3M Innovative Properties Company
    Inventor: Chikafumi Yokoyama
  • Patent number: 6837931
    Abstract: A water washer for spray booth includes a gas exhaust duct, an exhaust fan and a fluid pump. The duct includes an entrance and an exit, with the entrance of the duct including a plurality of apertures. The entrance of the duct is positioned to receive a gas mixed with a spray from a spray application area of a spray booth. The exhaust fan is positioned to draw the gas from the spray application area into the gas exhaust duct. The fluid pump is coupled to a source of fluid and fluid supply pipe, which is positioned to direct a fluid into the plurality of apertures at the entrance of the enclosure and thereby remove overspray from the gas drawn from the spray application area.
    Type: Grant
    Filed: January 29, 2004
    Date of Patent: January 4, 2005
    Assignee: Thierica, Inc.
    Inventor: Louis F. McGough
  • Patent number: 6835268
    Abstract: The present invention discloses an improved method for transferring an image onto an object which has a surface that curves in two directions. After providing a source containing an image capable of thermal transfer, a target surface is chosen on the object and a chemical coating is applied. The image is then pressed into the coated target surface until the target surface is substantially flat and heated so that the image is transferred to the target surface. The coating allows the image to be transferred at a low temperature. In a preferred embodiment, after the source is removed, a second application of heat is applied to the object to drive the image into the object. A protective material may be positioned between the heating element and the image, especially before the second application of heat.
    Type: Grant
    Filed: December 24, 2002
    Date of Patent: December 28, 2004
    Assignee: Star Innovations, L.C.
    Inventor: Marshall Widman
  • Patent number: 6833028
    Abstract: In a method for depositing particles onto a substrate a flow of gas containing particles is provided along a flow path that bypasses a deposition chamber. The flow path may direct the flow of the gas containing the particles to a vacuum. To deposit particles onto a substrate in the deposition chamber, the flow path of the gas containing the particles is diverted into the deposition chamber so that particles are deposited onto the substrate. After a desired amount of particles have been deposited onto the substrate, the flow path of the flow of the gas containing the particles is changed to the flow path that bypasses the deposition chamber. A particle deposition system and a method for maintaining particle diameter during deposition of particles onto a substrate also are described.
    Type: Grant
    Filed: February 11, 2002
    Date of Patent: December 21, 2004
    Assignee: The Scatter Works Inc.
    Inventors: Craig A. Scheer, John C. Stover
  • Patent number: 6827777
    Abstract: An application head (11) for application of hot-melt adhesive onto a width of material (22) has a housing (12) with a control slide chamber (20). A cylinder control slide (13) is supported and is rotatably drivable in the housing. At least one supply aperture introduces an adhesive into the control slide chamber (20). A slotted nozzle (18) releases the adhesive. The slotted nozzle is controllable by the cylinder control slide (13). The nozzle extends transversely to the direction of movement of the width of material (22). The cylinder control slide (13) has a cylindrical surface which is able to seal the slotted nozzle (18) from the inside. The control slide (13) also has surface grooves (17) in the cylindrical surface. The grooves, as a function of their rotational positions, are able to communicate with the slotted nozzle.
    Type: Grant
    Filed: July 30, 2002
    Date of Patent: December 7, 2004
    Inventor: Wolfgang Puffe
  • Patent number: 6827782
    Abstract: A chemical treating apparatus for performing a predetermined treatment of a principal surface of a substrate by delivering a treating solution thereto. The apparatus includes a treating solution delivery nozzle for delivering the treating solution to the principal surface of a substrate. The nozzle has a treating solution reservoir adjacent a tip end thereof for storing the treating solution. A temperature control device holds the treating solution reservoir to control the temperature of the treating solution in the treating solution reservoir through heat exchange with the treating solution.
    Type: Grant
    Filed: January 28, 2003
    Date of Patent: December 7, 2004
    Assignee: Dainippon Screen Mfg. Co., Ltd.
    Inventors: Shigehiro Goto, Katsushi Yoshioka, Minobu Matsunaga
  • Patent number: 6824616
    Abstract: The present invention relates to a processing method for processing a substrate, and comprises a step of coating a coating solution on a surface of the substrate while relatively moving a coating solution discharge nozzle and the substrate and discharging the coating solution from the nozzle onto the substrate. Thereafter, the substrate is exposed to a solvent atmosphere of the coating solution or the pressure is temporarily applied thereto in a container. Thereafter, the pressure inside the container in which the substrate is housed is reduced to dry the coating solution on the substrate. According to the present invention, it is possible to narrow the so-called edge cutting width, which is at a periphery part of the substrate and is not commercialized, and to maintain an in-plane uniformity of the coating film.
    Type: Grant
    Filed: April 15, 2002
    Date of Patent: November 30, 2004
    Assignee: Tokyo Electron Limited
    Inventors: Takahiro Kitano, Shinichi Sugimoto, Shinji Kobayashi, Naoya Hirakawa, Akira Fukutomi, Nobukazu Ishizaka
  • Patent number: 6814902
    Abstract: There is provided a method for continuously manufacturing an optical article which comprises a first step of thermal press-molding a sheet-like curved body and a second step of insert injection-molding a back resin on a concave side of the sheet-like curved body, while transferring the continuous sheet in a longitudinal direction, using an apparatus for manufacturing an optical article in which a press-molding machine which can thermal press-mold the sheet-like curved body and an insert injection-molding machine equipped with a mold having a curvature similar to that of the sheet-like curved body are serially positioned in this order, wherein a cycle of thermal press-molding and a cycle of insert injection-molding are synchronized to continuously insert-mold the back resin on a concave side of the sheet-like curved body while continuously thermal press-molding the sheet-like curved body.
    Type: Grant
    Filed: September 24, 2001
    Date of Patent: November 9, 2004
    Assignee: Yamamoto Kogaku Co. LTD
    Inventors: Tamenobu Yamamoto, Fumio Ishibashi, Koichiro Oka
  • Patent number: 6814808
    Abstract: A quartz carrier having spaced, parallel grooved rods for holding a batch of semi-conductor wafers edgewise in upstanding, spaced, parallel relation is formed with a pair of flat end plates supporting the ends of the rods. The ends of the end plates extend laterally outwardly of the rods and support a pair of inverted “U”-shaped carrier support members extending along the length of the carrier. A tool having an carrier engaging rod mounted to a handle allows the user to insert the carrier engaging rod into one of the carrier support members to support the weight of the carrier. A rod mounted to the handle extends beyond the length of the wafer supporting grooved rods and engages the ends of the end plates to limit the rotation of the carrier about the carrier support member, enabling the user to raise and manipulate the carrier by means of the handle.
    Type: Grant
    Filed: October 8, 2002
    Date of Patent: November 9, 2004
    Assignee: Sci-Tech Glassblowing, Inc.
    Inventors: Glenn A. Gados, Matthew Coe
  • Patent number: 6786971
    Abstract: A printing device for digital printing on a print medium is comprised of a wheel rotatable by a motor, a liquid dispenser for depositing a quantity of liquid on the wheel along the outer edge, and an air jet positioned adjacent the outer edge for removing the liquid from the outer edge and directing the liquid toward the print medium as the wheel rotates through the air jet. The outer edge includes a plurality of teeth transport the paint from the dispenser to the air jet. An electronically controlled motor is used to selectively rotate the wheel through the air jet thereby removing a desired amount of liquid from the wheel. The liquid is transported by the air jet toward the print medium. By employing a plurality of such printing devices, a full color digital image can be reproduced on any print medium.
    Type: Grant
    Filed: June 6, 2002
    Date of Patent: September 7, 2004
    Inventor: Dean Robert Gary Anderson
  • Patent number: 6776844
    Abstract: A production device to produce an organic EL display includes a solution in which a light emitting material is dissolved, and a flying electrode to receive solution from the container. A voltage is applied between the tip of the flying electrode and an electrically conductive material of an organic EL substrate to form an electrostatic field, and the tip of the flying electrode and the organic EL substrate are shifted relative to one another in at least one of a perpendicular direction and a horizontal direction. With this arrangement, the solution is formed into a stringy beam from the tip of the flying electrode to it fly onto the organic EL, substrate, thereby injecting the solution into a concavity formed and surrounded by banks on the organic EL substrate, and forming red, green and blue light emitting layers.
    Type: Grant
    Filed: March 26, 2002
    Date of Patent: August 17, 2004
    Assignee: Hitachi, Ltd.
    Inventors: Seiji Yonekura, Yoshinobu Fukano, Mamoru Okano, Yasuo Imanishi, Sukekazu Aratani, Yoshiharu Nagae
  • Patent number: 6770139
    Abstract: A dusting device comprises a housing (12) and at least one powder gas delivery device (14, 15), which discharges a powder gas jet (16) onto a surface of products transported in one conveyor direction (18) and a suction device (34) for unused powder gas. At least one housing wall (21) is permeable for an airstream (28a), whereby at least one permeable housing wall (21) has an air-permeable filter mat arrangement (22).
    Type: Grant
    Filed: December 28, 2001
    Date of Patent: August 3, 2004
    Assignee: Platsch GmbH & Co. KG
    Inventor: Hans Georg Platsch
  • Patent number: 6761125
    Abstract: A system for supplying a chemical to a substrate to form a liquid film of the chemical on the substrate. The system includes a plate having a slit between a nozzle portion movable in lateral directions, and a substrate held by a substrate holding portion movable in longitudinal directions. Shock eliminating portions, provided at left and right ends of the slit, inhibit mist from being produced from a coating liquid supplied outside of the slit. A pair of shutters are capable of washing the coating liquid received by the surfaces of the shock eliminating portions. In the vicinity of the slit, a suction port is provided over a range corresponding to a movable region of the nozzle for sucking mist produced when the nozzle is scanned to carry out coating. The plate has a slit for dispersing a downward flow outside of the slit.
    Type: Grant
    Filed: September 13, 2002
    Date of Patent: July 13, 2004
    Assignee: Tokyo Electron Limited
    Inventors: Takahiro Kitano, Yoshiyuki Kawafuchi, Norihisa Koga, Toshichika Takei
  • Patent number: 6759086
    Abstract: The present invention is directed to an improved method and apparatus for the application of powdered resins to threaded fasteners. In accordance with the present invention, the powdered resin handling system used to apply, collect, recycle and make-up the resin is generally enclosed; that is, with the exception of the application of the resin to the fasteners, the resin is generally maintained within conduit, housings or hoppers that are not open to the surroundings. This tends to minimize discharge of resin into the areas surrounding the fastener processing equipment and also isolates the resin from external environmental conditions that tend to degrade the resin over time. In addition, the present invention introduces fresh, new or make-up resin in a manner that assures intimate and thorough intermixing of the new and recycled resin while minimizing the cost and complexity of the equipment employed for that purpose.
    Type: Grant
    Filed: August 13, 2003
    Date of Patent: July 6, 2004
    Assignee: Nylok Corporation
    Inventors: Anthony Dimaio, Mike Arslanouk
  • Patent number: 6758905
    Abstract: The present invention provides a fluorescent layer forming apparatus for applying a fluorescent material paste into a recess defined between barrier ribs formed on a substrate for formation of a fluorescent layer in a plasma display panel production process. The apparatus comprises: a nozzle for ejecting the fluorescent material paste; and a plurality of fine attachments provided at one end of the nozzle with distal end portions thereof being arranged in convergent relation. The fluorescent material paste is ejected along the plurality of fine attachments thereby to be applied into the recess without formation of a clot. Thus, the fluorescent layer can accurately be formed in the intended recess between the barrier ribs without adhesion of the fluorescent material paste onto the top edges of the barrier ribs.
    Type: Grant
    Filed: April 22, 2003
    Date of Patent: July 6, 2004
    Assignee: Fujitsu Hitachi Plasma Display Limited
    Inventors: Kazuo Suzuki, Yoshimi Shirakawa, Tatsutoshi Kanae