Patents Examined by Michael Aboagye
  • Patent number: 10408540
    Abstract: An apparatus for use with a launder shell includes a heating component formed of refractory material. The heating component has a compartment configured to contain an electrical heating element. The apparatus further includes an elongated trough section configured for placement in an installed position inside the shell. The trough section has a fluid flow channel and a cavity beneath the channel. The cavity is configured to receive and support the heating component for movement into and out of the installed position together with the trough section.
    Type: Grant
    Filed: December 21, 2016
    Date of Patent: September 10, 2019
    Assignee: Fives North American Combustion, Inc.
    Inventors: Theresa Marie OFallon, Scott Evans Roach
  • Patent number: 10400302
    Abstract: An annealing furnace for annealing a strand of steel. The annealing furnace including a first heating apparatus for heating the strand during operation of the annealing furnace. A transport device advances the strand in a direction of transport through the annealing furnace during operation of the annealing furnace. The annealing furnace also includes a first cooling device for cooling the outer surface of the strand with a gas guide in the direction of transport behind the first heater, wherein the gas guide is arranged in such a manner that a gas flows along the outer surface of the strand during operation of the annealing furnace for cooling the strand.
    Type: Grant
    Filed: December 10, 2014
    Date of Patent: September 3, 2019
    Assignee: Sandvik Materials Technology Deutschland GmbH
    Inventors: Thomas Frobose, Christofer Hedvall
  • Patent number: 10400294
    Abstract: Device for inserting a refractory block into a taphole structure of a metallurgical vessel, in particular a basic oxygen furnace wherein the refractory block is carried by a mounting unit and has a proximate end introducable into the taphole. A distal end with locking elements, which can be coupled to a locking plate of the vessel, is disposed at the outside of the taphole of the vessel. The refractory block can be introduced into the taphole structure until the locking elements of the mounting unit can be attached to and coupled with the coupling head with a manipulator. This mounting unit can be uncoupled with the manipulator, when the refractory block is mortared and fixed in the lining, whereby the mounting unit can be decoupled and removed solely out of the taphole to enable refractory block replacement and gunning of refractory material from the inside of the furnace more easily.
    Type: Grant
    Filed: November 3, 2015
    Date of Patent: September 3, 2019
    Assignee: Refractory Intellectual Property GmbH & Co. KG
    Inventor: Colin Cartmill
  • Patent number: 10378822
    Abstract: A heating device for an annular component is provided. The heating device is configured to heat the annular component via hot gas flow, and includes a gas flow heater, a draught fan, and an annular cavity for accommodating the annular component. An outer wall of the annular cavity is provided with a gas flow inlet and a gas flow outlet, the gas flow heater heats a gas flow, and the draught fan enables the gas flow to enter into the gas flow inlet, pass through a gas flow passage in the annular cavity, and be discharged via the gas flow outlet.
    Type: Grant
    Filed: December 11, 2014
    Date of Patent: August 13, 2019
    Inventors: Shengjun Ma, Chengqian Liu
  • Patent number: 10378083
    Abstract: A process and apparatus for recovering aluminum metal from aluminum dross, the process including skimming aluminum dross from a furnace containing molten aluminum into a dross processing receptacle, transporting and mounting the dross filled receptacle to a rocking device, and rocking the receptacle until aluminum pours from discharging outlets in the receptacle into a container for catching the molten aluminum which is placed underneath the rocking device.
    Type: Grant
    Filed: June 25, 2014
    Date of Patent: August 13, 2019
    Inventor: Frank Pollmann
  • Patent number: 10370253
    Abstract: Provided is a silicon refining device that is used when industrially producing silicon of high purity by vacuum melting, has a high P removal rate and thus high productivity, and is a practical device cost-wise with a simple and cheap device configuration. This silicon refining device comprises, in a decompression vessel provided with a vacuum pump, a crucible that contains a metal silicon material, a heating device that heats the crucible, and a molten metal surface thermal insulation member that covers the upper portion of silicon molten metal and has an exhaust opening with an opening area that is smaller than the silicon molten metal surface area. The molten metal surface thermal insulation member comprises a laminated insulation material with a multilayer structure in which three or more laminates are laminated at predetermined intervals from each other, and which exhibits a radiant heat insulating function based on the multilayer structure.
    Type: Grant
    Filed: March 9, 2012
    Date of Patent: August 6, 2019
    Assignee: Silicio Ferrosolar S.L.
    Inventors: Yutaka Kishida, Hitoshi Dohnomae
  • Patent number: 10371376
    Abstract: Industrial furnace (1) which can be used for example for treating semi-finished and siderurgical products, metal and inorganic materials, comprising a) a hot chamber (3) in which a combustion takes place and the hot gases generated by the combustion come in direct contact with the materials to be treated (p) in the furnace itself; B) a combustion stabilizing system in turn comprising b1) an injection system in turn comprising at least a mixer (11) arranged to mix a fuel and a diluent before injecting them into the hot chamber (3). The diluent has the effect of reducing the amount of nitrogen oxides in the combustion products. It considerably reduces the consumption of required diluent and the Nox emissions in the fumes.
    Type: Grant
    Filed: June 27, 2014
    Date of Patent: August 6, 2019
    Assignee: TENOVA S.p.A.
    Inventors: Alessandro Della Rocca, Massimiliano Fantuzzi
  • Patent number: 10357853
    Abstract: The relevant regulations in the field of automated flame-cutting technology stipulate various safety devices for the process-gas supply of a cutting torch. The invention relates to the simplified installation and maintenance of the safety devices and to a compact structure thereof. Proposed is a multi-functional safety module, in the module body of which there are integrated a first and a second safety element to prevent flame- or gas-blowout, and in which there is provided a mechanical plug-type connection for establishing a gas-tight connection between the safety elements and the corresponding gas lines of the cutting torch.
    Type: Grant
    Filed: November 30, 2015
    Date of Patent: July 23, 2019
    Assignee: Messer Cutting Systems GmbH
    Inventors: Reinald Vossberg, Burkhard Fenner
  • Patent number: 10351928
    Abstract: A resistance annealing furnace for annealing a metal wire, strand, string, wire rod or strap having at least two electric axes, which are provided with respective pulleys for conveying the metal wire, and DC voltage generator means suppliable by an AC voltage source to generate an annealing voltage applied between the two electric axes. The DC voltage generator means has a first voltage rectifier stage connectable to the AC voltage source to generate an intermediate DC voltage, an active power filter, connected so as to compensate the current harmonics at the input of the first voltage rectifier stage, a pulse width modulator to transform the intermediate voltage into a first PWM voltage, a voltage transformer to transform the first PWM voltage into a corresponding second PWM voltage, and second voltage rectifier means to transform the second modulated PWM voltage into the annealing voltage.
    Type: Grant
    Filed: November 4, 2014
    Date of Patent: July 16, 2019
    Inventors: Artemio Affaticati, Roberto Conte
  • Patent number: 10337798
    Abstract: A shield for injection lances in metal production furnaces facilitates the adjustment of the contents of the melt in the metal production furnace. The shield has an outer shell joined to an inner shell by a face plate. The outer shell and inner shell define a fluid chamber between them and the face plate has an inlet aperture and an exit aperture for coolant flow through the fluid chamber. The shield is sized and shaped to fit into or around an aperture in the wall of the furnace. The shield has apertures through it to facilitate introduction of additives to the melt in the metal production furnace.
    Type: Grant
    Filed: May 12, 2017
    Date of Patent: July 2, 2019
    Inventors: Michael A. Rainey, Jr., Dennis Beller
  • Patent number: 10337082
    Abstract: Provided is a hearth roll for supporting and conveying a steel sheet in a continuous annealing furnace, wherein all of a shaft portion and a roil main body are made from one or more ceramic materials, preferably constituted with concentric ceramic layers of different ceramic materials centering on the rotation shaft of the roll. The hearth roll has not only an excellent pickup resistance but also a long roll life free from maintenance for long periods. Also provided is a continuous annealing facility using the hearth roll in at least one of a heating zone, a soaking zone and a cooling zone.
    Type: Grant
    Filed: September 29, 2015
    Date of Patent: July 2, 2019
    Inventor: Takayuki Fukunaga
  • Patent number: 10328509
    Abstract: A thermal deburring machine includes a first chamber part, a second chamber part, a closing device, at least one supporting assembly. The second chamber part is separate from the first chamber part, and the first and second chamber parts are configured to receive workpieces to be deburred. The closing device is configured to push the second chamber part and first chamber part together with respect to a closing direction. The supporting assembly is disposed in an annular manner about a transverse axis oriented perpendicularly to the closing direction, is movable relative to the closing device along the transverse axis, and is configured to absorb closing forces from the closing device.
    Type: Grant
    Filed: September 18, 2014
    Date of Patent: June 25, 2019
    Assignee: Robert Bosch GmbH
    Inventors: Boris Friedrich, Ruediger Finn
  • Patent number: 10330387
    Abstract: To improve the position of a cylindrical ceramic hollow body the invention relates to a securing device for use with a gas purging brick, where the securing device has the following characteristics in its operational position: A base body which, with its bottom and a circumferential wall, defines a cylindrical space with a corresponding central longitudinal axis, the bottom features an opening whose longitudinal axis aligns with the central longitudinal axis the bottom features a ring-shaped channel which extends concentrically around the opening. at least an inner wall of the channel which is adjacent to the opening consists of a material which is plastically ductile under the application of pressure, a ring-shaped compact whose radial wall cross-section increases in size upwards from a lower free end, so that the inner wall of the channel deforms plastically, thereby reducing the cross section of the opening, after the compact is pressed into the channel.
    Type: Grant
    Filed: July 28, 2015
    Date of Patent: June 25, 2019
    Assignee: Refractory Intellectual Property GmbH & Co. KG
    Inventors: Bojan Zivanovic, Bernhard Handle
  • Patent number: 10329640
    Abstract: A hearth roll for heat treatment furnaces has excellent build-up resistance, has a hexavalent-chromium-free thermal spray coating film formed on the roll surface thereof and is safe for the environment. A method for manufacturing a hearth roll for continuous annealing furnaces includes a first step of applying an aqueous solution containing chromium phosphate onto a thermal spray coating film formed on the roll surface of a hearth roll or impregnating the thermal spray coating film with the aqueous solution; and a second step of burning the hearth roll.
    Type: Grant
    Filed: June 29, 2015
    Date of Patent: June 25, 2019
    Inventors: Yasushi Kurisu, Yu Li
  • Patent number: 10300525
    Abstract: This filtration device 10 has a can body 20 having a reservoir 3 that connects to an opening 9 at the top, and a filtration unit 40 which is detachably installed in the reservoir. The filtration unit has a support plate 42, and filtration tubes 41 of bottomed cylindrical shape fastened to the support plate. The side wall 22 of the can body 20 has a protruding locking part 30 for installation of the filtration unit so that the filtration tubes are suspended from the support plate 42, with the openings 43 thereof facing upward. With the support plate 42 locked into the locking part 30, pressing members 70 for pressing the support plate 42 downward from the upper surface side in sections thereof lying towards the peripheral edge S in relation to the fastening locations of the filtration tubes 41 are deployed, making it possible for the support plate 42 to be fastened in clamped fashion by the locking part 30 and the pressing members 70.
    Type: Grant
    Filed: July 24, 2015
    Date of Patent: May 28, 2019
    Inventors: Takeo Arita, Minoru Kubota, Kazuhiko Kawaguchi, Eiki Tsutsumi
  • Patent number: 10287651
    Abstract: Disclosed is a thermal reduction apparatus. The thermal reduction apparatus according to the exemplary embodiment includes: a preheating unit which preheats a to-be-reduced material and loads the to-be-reduced material into a reducing unit; the reducing unit which is connected to the preheating unit and in which a thermal reduction reaction of the to-be-reduced material occurs; a cooling unit which is connected to the reducing unit and from which the to-be-reduced material flowing into the cooling unit is unloaded to the outside; a gate device which is installed between the preheating unit and the reducing unit; a gate device which is installed between the reducing unit and the cooling unit; a condensing device which is connected to the reducing unit and condenses a metal vapor; a first blocking unit which is installed in the reducing unit; and a second blocking unit which is installed in the reducing unit so as to be spaced apart from the first blocking unit.
    Type: Grant
    Filed: July 8, 2015
    Date of Patent: May 14, 2019
    Inventors: Dong Kyun Choo, Young Il Kim, Kil Won Cho, Wung Yong Choo, Jong Min Park, Jae Sin Park, Gilsoo Han, Good-Sun Choi, Gyu Chang Lee, Dae Kyu Park, Moon Chul Kim
  • Patent number: 10281216
    Abstract: An molten metal stirring device is provided, including a main bath that includes a furnace main body including a storage chamber; and a stirring unit that drives and stirs the molten metal stored in the furnace main body, the stirring unit including a passage member that includes a molten metal passage, the rotating-shifting magnetic field unit main body including a permanent magnet and being provided outside the passage member, the furnace main body including a molten metal outlet and inlet formed in a side wall and in communication with each other, at least a pair of electrodes are provided in the molten metal passage, and molten metal present in the molten metal passage is driven toward the molten metal outlet by a resultant driving force of first and second electromagnetic forces according to Fleming's rule.
    Type: Grant
    Filed: March 26, 2015
    Date of Patent: May 7, 2019
    Inventor: Kenzo Takahashi
  • Patent number: 10281212
    Abstract: A fired precast block prevents itself from dropping off early due to corrosion and increases service life of a blast furnace runner, etc. when used in a very vulnerable portion of the blast furnace runner, etc., and can be produced at low costs. The fired precast block has an upper surface to contact molten metal or slag, a lower surface opposing the upper surface, and a plurality of side surface. The fired precast block is used by being embedded in a castable in such a manner that the upper surface is exposed from the castable and the lower surface and the plurality of side surfaces contact the castable. Each side surface of at least one opposing pair of side surfaces includes a planar portion and an uneven portion. The uneven portion has at least one groove-shaped concave portion.
    Type: Grant
    Filed: May 23, 2016
    Date of Patent: May 7, 2019
    Inventors: Kenji Yanagi, Eiji Kozawa
  • Patent number: 10273553
    Abstract: A cooling device configured to cool an article to be processed by spraying a coolant includes a cooling chamber configured to accommodate the article to be processed, a header pipe having a connecting pipe protruding from a main body section to which a nozzle is attached and into which the coolant supplied into the main body section is supplied, and disposed in the cooling chamber, and an attachment section formed at the cooling chamber and into which the connecting pipe is inserted from an inside of the cooling chamber to an outside of the cooling chamber.
    Type: Grant
    Filed: November 29, 2016
    Date of Patent: April 30, 2019
    Inventors: Kazuhiko Katsumata, Kaoru Isomoto, Takahiro Nagata, Akira Nakayama, Yuusuke Shimizu, Gen Nishitani
  • Patent number: 10272489
    Abstract: A carriage for receiving molten metal with a mechanism for moving a ladle up and down and a method for transporting molten metal to safely move a ladle for receiving a molten metal up and down and transport it. The carriage (10) for receiving molten metal to transport the ladle that receives molten metal from a furnace (C) comprises a carriage (20) for travelling on a route (L), guiding columns (30) that are placed on the carriage (20), a frame (40) that horizontally extends from the guiding columns and moves up and down above the carriage (20), a mechanism (50) for moving the ladle, which mechanism is placed on the frame (40) and horizontally moves the ladle, and the driver (60) for moving the frame up and down.
    Type: Grant
    Filed: September 17, 2014
    Date of Patent: April 30, 2019
    Inventors: Tadashi Nishida, Masanori Hoshino