Patents Examined by Steven B. Leavitt
  • Patent number: 5728269
    Abstract: A board composed of a lignocellulosic material and the modification thereof as the substantial components and having good mechanical strength, even when the board does not contain any components derived from an additive, by utilizing the autoadhesion of a specified lignocellulosic substance. This board is produced by molding under heat and pressure a lignocellulosic substance containing at least 30 weight % of a malvaceae bast plant, being substantially free from any component derived from an adhesive, and has a strength value of more than 100 as defined by the following formula (I): 0.48.times.Y/X.sup.2, wherein Y is a bending strength (kgf/cm.sup.2) and X is a density (g/cm.sup.3). A particulaly preferable example of the plant is the kenaf.
    Type: Grant
    Filed: October 18, 1996
    Date of Patent: March 17, 1998
    Assignees: Atsushi Onishi, Tsuyoshi Kohno
    Inventors: Tsuyoshi Kohno, Hiroharu Yamaguchi
  • Patent number: 5725668
    Abstract: An apparatus for applying a fluid to an outer surface of an elongated work piece having a longitudinal axis and a cross sectional shape, perpendicular to the longitudinal axis. The apparatus has a head member having an interior wall cross sectional shape adapted for receiving the cross sectional shape of the elongated work piece. The interior cross sectional shape defines an interior wall of the head member. The head member has an input end and an output end. The interior wall has means for applying the fluid to a surface of said elongated member. The head member has preferable a first part and a second part which are joined by an expandable member.
    Type: Grant
    Filed: December 19, 1996
    Date of Patent: March 10, 1998
    Assignee: International Business Machines Corporation
    Inventors: Elizabeth F. Foster, Jeffrey C. Hedrick, Stephen L. Tisdale, Alfred Viehbeck
  • Patent number: 5725734
    Abstract: A transfer configuration for a paper making machine, the transfer configuration being composed of: 1) a first carrier fabric having a first surface on which a fibrous web is transported to the transfer configuration at a first velocity; 2) a second carrier fabric having a second surface on which the fibrous web is transported away from the transfer configuration at a second velocity that is less than the first velocity; 3) a lengthened transfer zone that begins at a transfer shoe and terminates at a portion of a transfer head and has a machine direction oriented length ranging from about 0.
    Type: Grant
    Filed: November 15, 1996
    Date of Patent: March 10, 1998
    Assignee: Kimberly Clark Corporation
    Inventors: Jeffrey Bruce Herman, John Ghordis Trumbull, Richard Ignatius Wolkowicz
  • Patent number: 5720811
    Abstract: Apparatus for the wet-paint spray painting of articles having a device for catching the paint surplus which has an air-permeable dry filter, wherein the dry filter is arranged movably and there is provided a suction removal device which sucks the dried paint particles away from the dry filter.
    Type: Grant
    Filed: February 23, 1996
    Date of Patent: February 24, 1998
    Inventor: Michael Eder
  • Patent number: 5718765
    Abstract: This continuous galvanizing method and apparatus passes a linear element to be galvanized, e.g., wire, rod, or tube, through a surrounding, relatively short length of conduit which is attached as a cross-tee to the end of a delivery pipe rising from a centrifugal pump submerged in a vat of molten zinc, and continuously flooded with liquid zinc to coat the linear element. The zinc flowing from the open ends of the conduit, and falling as excess from the element being coated, drops back into the vat for recirculation. The vat is covered to provide a substantially closed operating space above the pool of molten zinc to enable the coating to take place in an inert atmosphere.
    Type: Grant
    Filed: February 29, 1996
    Date of Patent: February 17, 1998
    Assignee: Allied Tube & Conduit Corporation
    Inventors: Carl H. Unger, Kalyan K. Maitra
  • Patent number: 5716497
    Abstract: A novel method and device for the production of pulp by a continuous cooking process is provided wherein hot impregnated chips are fed into the top of a countercurrent steam digester which has a bottom outlet and at least one draw off screen girdle for removing black liquor. At least 50%, preferably 70%, of the cooking liquor is fed to the top of the digester as finely divided droplets.
    Type: Grant
    Filed: June 12, 1996
    Date of Patent: February 10, 1998
    Assignee: Kvaerner Pulping AB
    Inventors: Johan Richter, Ole Richter
  • Patent number: 5711852
    Abstract: A process and device for mixing fluid into a pulp suspension of cellulose-containing fiber material, in which the pulp suspension is pumped in through a pump inlet, brought into rotation and, at the desired reaction pressure, mixed with the said fluid while passing through a reaction sector comprising a stator shell, a rotor which is coaxial therewith, and at least one fluid inlet, after which the pulp mixture leaves the reaction sector through a pulp outlet, in which the fluid, via the said fluid inlet, is supplied in the vicinity of the center of rotation of the rotating pulp suspension, where the local pressure in the pulp suspension is lower, due to the centrifugal force increasing radially outwards, then the reaction pressure prevailing at the periphery of the pulp suspension.
    Type: Grant
    Filed: April 1, 1996
    Date of Patent: January 27, 1998
    Assignee: Kvaerner Pulping Technologies Aktiebolag
    Inventors: Rolf Ekholm, Ulf Jansson, Per Nystrom
  • Patent number: 5709748
    Abstract: An improved release agent delivery apparatus is disclosed for use in laser printers, plain paper copiers, facsimile machines, and similar printing apparatus. The delivery apparatus comprises an absorbent textile core filled with release agent, a permeable membrane surrounding the textile core to form a sheathed wick member, and a mounting sleeve adapted to attach the sheathed wick member in operative contact with the printer. The apparatus has numerous operational advantages over existing oil delivery apparatus, including providing multiple contact surfaces for longer operational life before replacement, ease in cleaning and regeneration, improved durability and reduced wear, and more compact and versatile operation.
    Type: Grant
    Filed: April 15, 1997
    Date of Patent: January 20, 1998
    Assignee: W. L. Gore & Associates, Inc.
    Inventors: Robert L. Sassa, Alex R. Hobson, Elizabeth Marie Crowley, Kristin E. Williamson
  • Patent number: 5705032
    Abstract: Black liquor is subjected to high shear to cause a breakdown of macromolecules contained therein and provide a reduction in viscosity, thereby improving the processability of the black liquor and enabling the solids content to be increased.
    Type: Grant
    Filed: February 23, 1996
    Date of Patent: January 6, 1998
    Assignee: Thor Technology Corporation
    Inventors: John N. Harbinson, David Todd R. Ellenor
  • Patent number: 5698079
    Abstract: The present invention relates to an arrangement for spreading paper pulp in a container for storing or treating the pulp, which arrangement comprises an inlet for supplying the pulp to a rotatably mounted spreader wheel and a driving member for driving said spreader wheel. The spreader wheel is provided with spreader blades, where each spreader blade has a surface which is directed towards the direction of rotation and is shaped to transport and spread the pulp outwards towards the periphery of the container during rotation of the spreader wheel. A spreader shield is arranged to divert a part of the outwardly directed pulp towards the center of the container so that the pulp is essentially spread over the entire cross-sectional area of the container.
    Type: Grant
    Filed: January 29, 1996
    Date of Patent: December 16, 1997
    Assignee: Kvaerner Pulping Technologies AB
    Inventors: Christen Gronvold-Hansen, Rolf Ekholm
  • Patent number: 5688326
    Abstract: An elongated material treatment apparatus includes, a coating device for coating a photoresist on a main region in a principal surface of an elongated material with a photoresist, and a conveying device for transporting the elongated material from a cleaning device to the coating device while supporting a transport support region in the principal surface cleaned by the cleaning device, there is a cleaning fluid removing device between the cleaning device and the coating device for removing a cleaning fluid deposited on the transport support region, whereby the elongated material is prevented from slipping during the transport of the elongated material by the conveying device and is correctly transported. The elongated material is transported to the coating device, with the cleaning fluid left in the main region, permitting uniform coating of the photoresist on the main region.
    Type: Grant
    Filed: October 18, 1995
    Date of Patent: November 18, 1997
    Assignee: Dainippon Screen Mfg. Co., Ltd.
    Inventors: Takefumi Kandori, Jyouitsu Sawa, Toshimasa Takeuchi
  • Patent number: 5688329
    Abstract: The present invention is directed to a shield fabricated from a sheet of material having a trough disposed on the lower edge and peripheral flanges disposed about the remaining edges for confining excess spray/mist when positioned rearwardly of an object being painted, cleaned or otherwise treated and directing it to the trough where it is collected and discharged. More specifically, the shield is fabricated from any of a variety of materials including cardboard, plastic, tin, stainless steel, etc., may optionally be provided with a coating to enhance the flow of the excess spray/mist downwardly into the trough, and is provided with means for suspending, staking or wedging the same onto support means during use.
    Type: Grant
    Filed: December 29, 1995
    Date of Patent: November 18, 1997
    Inventor: David Poague
  • Patent number: 5683509
    Abstract: Several embodiments of an apparatus for applying a liquid or pasty medium e.g. a coating medium onto a moving material web of paper or board are disclosed. All embodiments include a first flexible endless loop belt having an inner surface that passes in contact with a sliding surface of a concave pressing shoe and an outer surface which contacts and moves a web through a press nip. In some embodiments, there is an opposing roll rotating along with the endless belt through the nip. Various devices can apply liquid or pasty medium onto the surface of the belt or the surface of the opposing roll. In an alternate apparatus, there are two counter rotating flexible endless belts which form the press nip between them through which the web is guided. The belts are pressed against each other by elongate guiding surfaces of respective pressing shoes inside the loops of the belts. These embodiments provide a longer length nip in the web travel direction to avoid film splitting during coating of the material web.
    Type: Grant
    Filed: December 22, 1995
    Date of Patent: November 4, 1997
    Assignee: Voith Sulzer Papiermaschinen GmbH
    Inventors: Hans-Peter Sollinger, Chrisian Schiel
  • Patent number: 5681390
    Abstract: A spray booth in which objects are coated by spraying with a finely divided coating material, the booth including: a housing composed of a ceiling which has a lower surface, a plurality of walls each having an inner surface and a floor, the surfaces delimiting a spray space; a system for recovering finely divided material not deposited on the objects; at least one scraping bar for scraping finely divided material off of at least one surface selected from the lower surface and an inner surface; and an operating mechanism for supporting and displacing the scraping bar along the at least one surface. The booth is scraped by first scraping one of the lower surfaces of the ceiling and the inner surface of at least one of the walls, and then scraping the floor.
    Type: Grant
    Filed: August 9, 1995
    Date of Patent: October 28, 1997
    Assignee: Sames S.A.
    Inventor: Adrien Lacchia
  • Patent number: 5679222
    Abstract: A papermaking belt comprising a reinforcing structure and a framework. The reinforcing structure has air permeability not less than 800 cfm and a Fiber Support Index not less than 75. The framework is joined to the reinforcing structure and extends outwardly not more than about 6.5 mils from the reinforcing structure. The framework has deflection conduits dispersed throughout, encompassed by, and isolated one from another by the framework. A paper-contacting surface of the framework comprises a paper-side network which encompasses paper-side openings of the deflection conduits. A substantial portion of each paper-side opening is not less than about 45 mils in each of its dimensions measured in the X-Y plane. A paper web having two regions: an essentially continuous and macroscopically monoplanar network region, and a dome region comprising a plurality of discrete domes encompassed by the network region. The domes are distributed in a non-random, repeating pattern.
    Type: Grant
    Filed: January 19, 1996
    Date of Patent: October 21, 1997
    Assignee: The Procter & Gamble Company
    Inventors: David Mark Rasch, Larry Odell Seward, Glenn David Boutilier
  • Patent number: 5672244
    Abstract: In the deinking of feed waste papers comprising magazines and newspapers at a weight ratio of magazine to newspaper of from 5/95 to 60/40, a reclaimed pulp with excellent qualities can be obtained by adjusting the treating temperature in the flotation step to 40.degree. to 80.degree. C. and adding a deinking agent, which contains an alkylene oxide adduct of an oil or fat, wherein said alkylene oxide adduct comprises ethylene oxide and propylene oxide added at a molar ratio of ethylene oxide to propylene oxide of from 1/1 to 5/1, and has a cloud point of 45.degree. to 90.degree. C., at least in one of the steps of the deinking process.
    Type: Grant
    Filed: May 9, 1995
    Date of Patent: September 30, 1997
    Assignee: Kao Corporation
    Inventors: Hiromichi Takahashi, Koji Hamaguchi
  • Patent number: 5672206
    Abstract: A moistening dispenser (10) for a roll of paper sheets (12) having a hollow core (14). The dispenser (10) comprises a holder (16) to be attached to a wall (18). The holder (16) will retain the hollow core (14) of the roll of paper sheets (12) in a rotatable manner. A structure (20) is built into the holder (16), for applying a predetermined amount of liquid (22) directly onto a first paper sheet (24) on the roll (12), just before the first paper sheet (24) is to be removed from the roll (12).
    Type: Grant
    Filed: October 11, 1995
    Date of Patent: September 30, 1997
    Inventor: Tom Gorman
  • Patent number: 5665160
    Abstract: An air knife device for regulating the thickness of a layer deposited on a strip at the output of a bath, comprising at least one nozzle defined by two lips spaced a small distance apart, the nozzle being supplied with pressurized fluid in order to blow at least one flat jet of fluid onto the strip. The device is associated with at least one fluid cushion stabilizer arranged on at least one side of the nozzle along one of its lips and comprising a substantially flat wall extending from this lip in a direction substantially parallel to the strip so as to define a thin, flat space between the wall and the strip. A fluid is introduced into this space for the formation of a fluid cushion which is able to stabilize the vibrations of the strip.
    Type: Grant
    Filed: October 26, 1995
    Date of Patent: September 9, 1997
    Assignee: Kvaerner Clecim
    Inventors: Jean Davene, Laurent Dondin
  • Patent number: 5665163
    Abstract: A uniform film of coating is delivered onto a substrate at high speed by a film applicator, such as a coater apparatus for a papermaking machine, which has a static converging wedge, an adjustable converging wedge, and an extraction channel located between the two wedges. As a unit, the film applicator minimizes the hydrodynamic flow instabilities, as well as reduces flow variations associated with a nonuniform feed and a dynamic contact line. The film applicator also removes entrained air and excess coating from the application zone in order to improve the flow stability and machine runnability.
    Type: Grant
    Filed: August 22, 1995
    Date of Patent: September 9, 1997
    Assignee: Beloit Technologies, Inc.
    Inventors: Alfred C. Li, Rex A. Becker, Leroy H. Busker
  • Patent number: 5660638
    Abstract: A jig in a plate form capable of efficient formation of side electrodes on electronic components in a plate form. After electrode formation on one side of each electronic component, an electrode can be formed on the other side without causing spalling or chipping of the already formed side electrode. The jig 1 includes a core member 3 having a soft member 4 joined thereto and has a multiple of grooves 5 and 6 formed on reverse sides, respectively, in such a way that aligned electronic components A can be pushed into the grooves. The inner sides of each groove are composed of the soft member 4. Side electrodes B are formed on both sides of an electronic component as it is held between the opposed inner sides of grooves 5 or 6.
    Type: Grant
    Filed: September 7, 1995
    Date of Patent: August 26, 1997
    Assignee: Rohm Co., Ltd.
    Inventors: Koshi Amano, Satoru Yatake