Patents Examined by Hung D Nguyen
  • Patent number: 10500681
    Abstract: An arc spot welding method able to give a predetermined weld bead diameter or excess metal height in a back surface weld bead of arc spot welding and able to give a welded joint excellent in both strengths of TSS and CTS and a welding apparatus for working the same are provided. Steel sheets containing carbon in 0.2 mass % or more and having sheet thicknesses “t” or more are arranged overlaid. A backing plate including a non-contact part and a contact part maintaining the back surface of the lower side steel sheet is provided. An arc generation and short-circuit conduction where the welding voltage between the welding wire and upper side steel sheet becomes 10V or less are alternately repeated so that the time period of the short-circuit conduction becomes over 30% to less than 60% per cycle to thereby weld the steel sheets.
    Type: Grant
    Filed: October 6, 2015
    Date of Patent: December 10, 2019
    Assignee: NIPPON STEEL CORPORATION
    Inventors: Shinji Kodama, Seiji Furusako, Yasunobu Miyazaki
  • Patent number: 10495374
    Abstract: A combination microwave and refrigerator system is provided. The microwave oven is connected to a source of power and has a control circuit for controlling the operation of the microwave oven. A first power supply outlet is provided on the microwave oven. A refrigerator is connected to the source of power by connection to the first power supply outlet. The control circuit is configured to disable the cooking operation of the refrigerator, when the microwave oven demands cooking power, and enable the cooling operation of the refrigerator when the microwave oven is not drawing cooking power. A safety sensor is provided in the microwave oven, and is configured to cause cooking power to the microwave oven to be turned off upon the safety sensor sensing a dangerous condition.
    Type: Grant
    Filed: May 19, 2017
    Date of Patent: December 3, 2019
    Assignee: Intirion Corporation
    Inventors: Gregory Allan Thomas Hall, Philip Emma
  • Patent number: 10485378
    Abstract: Disclosed herein is a cooking system for cooking food, the system including a housing defining a hollow chamber configured to receive a food container. The housing has an upper portion defining an opening to the hollow chamber. At least one lid is movable relative to the housing. At least one heating element is associated with at least one of the housing and the at least one lid and at least one detector is operable to detect a configuration of the at least one lid. The cooking system is operable in a plurality of cooking modes and operation of a particular cooking mode is dependent on a detected configuration of the at least one lid by the at least one detector.
    Type: Grant
    Filed: March 18, 2019
    Date of Patent: November 26, 2019
    Assignee: SHARKNINJA OPERATING LLC
    Inventors: Aaron Michael Gill, Ross Richardson, Naomi Kalia Williams Zabel, Da Deng, Mete Gursel, Andrew John Roy Tattersfield, Niall Christopher Denham, Roger Neil Jackson, Ronan Patrick Leahy, Evan James White, Thomas Guerin, Chris Martin, Nathaniel R. Lavins, Mackenzie Lee Swanhart, Samuel Andrew Ferguson, Scott James Stewart
  • Patent number: 10480861
    Abstract: The present invention relates to a process of making power-saving electric stoves, particularly having a large size and outer shapes similar to the conformations of traditional Tyrolean heaters or stoves, while having a very light weight and being easily movable to multiple locations of a house. The main characteristic of the present invention is that it includes making a hollow stove body, particularly having a large size, from expanded polystyrene or a similar thermoplastic polymer, with the application of an electric resistor, particularly a constant-power, and hence low-power consuming heating cable arranged around its outer surface in one or more coil loops with the interposition of a layer of adhesive material with at least one thread formed therein for supporting the resistor, with contiguous insulating grooves, and with later application of a final coating layer, made e.g.
    Type: Grant
    Filed: December 22, 2016
    Date of Patent: November 19, 2019
    Inventor: Diego Brocchetto
  • Patent number: 10477630
    Abstract: An interrupting circuit is configured to monitor for and detect a fault in a device for generating a field of electromagnetic radiation (e-field) from a radio frequency (RF) generator configured to convert low voltage direct current (DC) into the e-field for application to an article in the e-field. If a fault is detected, the interrupting circuit interrupts low voltage DC between an energy reserve and the RF generator within a predetermined time less than the time to dissipate energy stored in the energy reserve.
    Type: Grant
    Filed: December 23, 2013
    Date of Patent: November 12, 2019
    Assignee: Whirlpool Corporation
    Inventor: Luana Spagnoli
  • Patent number: 10477629
    Abstract: An electronic induction heat cooking apparatus includes a rectifier including a bridge diode, for rectifying an input voltage and outputting a direct current (DC) voltage; a plurality of switching elements for switching the DC voltage output through the rectifier; a controller for controlling the plurality of switching elements; a plurality of heating coils for heating a cooking utensil by controlling the plurality of switching elements; a heat sink having the plurality of switching elements mounted thereon, for cooling the plurality of switching elements; a cover covering the plurality of switching elements; and coupling members for coupling the heat sink to the cover. A radiation fin for cooling the plurality of switching elements is formed on the cover.
    Type: Grant
    Filed: June 22, 2016
    Date of Patent: November 12, 2019
    Assignee: LG Electronics Inc.
    Inventors: Byungkyu Park, Hyunwook Moon, Seungbok Ok, Byeongwook Park
  • Patent number: 10472223
    Abstract: An induction heater and a water dispenser having an induction heater are provided. The induction heater may include a hot water tank assembly formed by coupling edges of a first cover and a second cover to each other and provided with an inner space to heat liquid. The first cover may be configured to have a flat plate shape and to be heated by a working coil. The second cover may include a base configured to face the first cover and separated from the first cover, and a welding portion formed by welding with the first cover and provided on a protruding surface that protrudes from the base toward the first cover.
    Type: Grant
    Filed: August 19, 2016
    Date of Patent: November 12, 2019
    Assignee: LG ELECTRONICS INC.
    Inventor: Jungmin Moon
  • Patent number: 10470259
    Abstract: A non-linear load in the form of an arc furnace with an upstream furnace transformer is supplied with electric power from a power supply device with a plurality of converter units. The converter units have a plurality of main modules with inputs connected to a respective phase of a three-phase grid. The converter units have a common star point between the main modules and the primary side of the furnace transformer. Each main module has a series circuit with a coupling inductance and a plurality of submodules. The submodules have a bridge circuit with four self-commutated semiconductor switches and a bridge path with a storage capacitor between input and output. The semiconductor switches of the submodules can each be switched independently of the semiconductor switches of the other submodules of the same main module and of the other main modules.
    Type: Grant
    Filed: April 22, 2015
    Date of Patent: November 5, 2019
    Assignee: Siemens Aktiengesellschaft
    Inventors: Arno Doebbeler, Wolfgang Hoerger, Hans-Joachim Knaak, Martin Pieschel, Jonas Pinkwart
  • Patent number: 10449581
    Abstract: A sealing system for isolating the environment inside a vitrification container from the outside environment comprises a vitrification container with a lid. The lid comprises two or more electrode seal assemblies through which two or more electrodes may be operatively positioned and extend down through the lid into the vitrification container. The electrodes may move axially up and down through the electrode seal assemblies or lock into place. The electrode seal assemblies each comprise a housing having two halves with recessed ring grooves. Sealing rings with a split may be placed into the grooves. Gas galleries may be machined or cast into the housing such that they are adjacent to the ring grooves. The gas galleries distribute gas onto the external faces of the sealing rings causing a change in pressure resulting in the sealing rings compressing onto the electrodes and forming a seal.
    Type: Grant
    Filed: December 22, 2016
    Date of Patent: October 22, 2019
    Assignee: Kurion, Inc.
    Inventors: Brett Campbell, Craig Shearer, Kevin Finucane, Steve Woosley, Eric Dysland
  • Patent number: 10455649
    Abstract: The invention relates to an induction coil assembly for an induction hob comprising: a coil baseplate (2) adapted to receive an induction coil (3); an adapter assembly (4) being mechanically coupled with the coil baseplate (2) via a connecting portion (5); wherein the adapter assembly (4) being adapted to be mounted at an electronic power board (6) of the induction hob and wherein the adapter assembly (4) comprises electrical connecting means for realizing a first electrical connection between the induction coil (3) and the electronic power board (6) and further electrical connecting means for realizing a second electrical connection between an induction coil sensor and the electronic power board (6).
    Type: Grant
    Filed: May 12, 2015
    Date of Patent: October 22, 2019
    Assignee: Electrolux Appliances Aktiebolag
    Inventors: Alex Viroli, Filippo Milanesi, Ulrich Häutle, Bernd Glänzer, Uwe Kallert
  • Patent number: 10448460
    Abstract: An induction heating system includes an electrically conducting load and an inverter circuit having a switching section and a resonant section. The switching section includes switching devices adapted to generate an AC current from an AC input voltage having a plurality of half-waves. The resonant section includes an induction heating coil adapted to receive the AC current for generating a corresponding time-varying magnetic field in order to generate heat in the electrically conducting load by inductive coupling. The amount of heat generated in the load depends on the frequency of the AC current. A method of managing an induction heating system also is disclosed.
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: October 15, 2019
    Assignee: Electrolux Appliances Aktiebolag
    Inventor: Andrea De Angelis
  • Patent number: 10448463
    Abstract: An induction heating system is disclosed. The system has an electrically conducting load and an inverter circuit with a switching section and a resonant section, wherein the switching section can generate an AC current from an AC input voltage incorporating a plurality of half-waves. The resonant section has an induction heating coil adapted to receive the AC current for generating a corresponding time-varying magnetic field in order to generate heat in the electrically conducting load by inductive coupling. The amount of heat generated in the load depends on the electric power delivered to the load through the induction heating coil, which depends on the frequency of the AC current. A method for managing an induction heating system also is disclosed.
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: October 15, 2019
    Assignee: Electrolux Appliances Aktiebolag
    Inventor: Andrea De Angelis
  • Patent number: 10433372
    Abstract: A portable device heats a fluid within a reservoir. The device includes a housing, a cavity, and an energizing element. The housing includes a first longitudinal end, a second longitudinal end, and outer surfaces of the device. The outer surfaces extend from an outer portion of the first longitudinal end to an outer portion of the second longitudinal end. The cavity extends from a cavity port that is positioned on an inner portion of the first longitudinal end to a cavity terminal positioned intermediate the first and second longitudinal ends. Inner lateral surfaces are adjacent the cavity and extend from the inner portion of the first longitudinal end to an outer portion of the cavity terminal. The energizing element is around the cavity. The cavity is positioned intermediate a first energizing element portion and a second energizing element portion. The energizing element provides energy to the cavity.
    Type: Grant
    Filed: October 8, 2015
    Date of Patent: October 1, 2019
    Assignee: Toaster Labs, Inc.
    Inventors: Amy Carol Buckalter, David Oscar Iverson, Garet Glenn Nenninger, Roland David Horth
  • Patent number: 10429131
    Abstract: An arrangement (10) for preventing egress of a gas from a first opening of a vessel, the vessel including at least one other opening through which the gas can leave the vessel, the arrangement comprising an open passage (48) extending substantially around the first opening, the open passage (48) receiving a flow of gas such that the flow of gas leaves the open passage and flows towards and into the vessel to cause a gas from the environment external to the vessel to be drawn into the vessel. The arrangement may comprise a Coanda surface. The arrangement may be in the form of an inert for placement in the opening to the furnace.
    Type: Grant
    Filed: May 21, 2015
    Date of Patent: October 1, 2019
    Assignee: Glencore Technology Pty Limited
    Inventors: Stanko Nikolic, Stephen Francis Gwynn-Jones, Nathan Roy Woodall
  • Patent number: 10422016
    Abstract: A tool system for stress relieving a turbocharger turbine wheel longitudinally welded to a hardened rotor shaft. The shaft has a journal bearing region and a turbine-end body forming an A datum surface for receiving an axial bearing. The tool system includes an induction coil and an electronic oscillator, and a tool. The tool forms an opening configured to receive the rotor shaft such that the journal bearing region of the shaft extends into the tool housing while the A datum surface adjoins an end of the tool housing. The induction coil is positioned around the turbine-end body. The housing forms an annular cooling chamber surrounding the journal bearing region of the shaft. The housing forms an inlet passage to provide cooling fluid to the annular chamber, and an outlet passage to remove cooling fluid from the annular chamber.
    Type: Grant
    Filed: August 11, 2016
    Date of Patent: September 24, 2019
    Assignee: Garrett Transportation I Inc.
    Inventors: Angelo Prior, Maurizio Barbone
  • Patent number: 10422584
    Abstract: A Vacuum Arc Remelting controller apparatus wherein process control is accomplished primarily through control of pool power. Pool power being defined as the total energy flux into a top ingot surface of the VAR ingot. The controller apparatus of the present invention comprises a controller computer that transmits commands to the host furnace through an ethernet connection.
    Type: Grant
    Filed: March 24, 2015
    Date of Patent: September 24, 2019
    Assignee: Specialty Metals Processing Consortium
    Inventors: Rodney L. Williamson, David K. Melgaard, Joseph J. Beaman
  • Patent number: 10412988
    Abstract: An apparatus for roasting coffee beans comprises a roasting chamber for containing coffee beans. The roasting chamber is positioned within a resonant cavity of a waveguide. A microwave emitter produces microwave energy within the waveguide with one or more stable high intensity microwave regions within the roasting chamber to heat the coffee beans in the roasting chamber to a temperature sufficient to roast the coffee beans. A device configured to move the coffee beans within the one or more high intensity microwave regions is coupled to the roasting chamber.
    Type: Grant
    Filed: June 13, 2016
    Date of Patent: September 17, 2019
    Assignee: JACOBSEN INNOVATIONS, INC.
    Inventors: Stephen C. Jacobsen, John McCullough
  • Patent number: 10413122
    Abstract: Disclosed herein is a cooking system for cooking food, the cooking system is functional in a plurality of cooking modes. The cooking system including a housing defining a hollow chamber configured to receive a food container. The housing has an upper portion defining an opening to the hollow chamber. A lid is movable relative to the housing and at least one heating element is associated with said lid. In a first cooking mode of the plurality of cooking modes, the at least one heating element is open to airflow between the at least one heating element and the hollow chamber, and in a second cooking mode, the at least one heating element is closed to airflow between the at least one heating element and the hollow chamber.
    Type: Grant
    Filed: March 18, 2019
    Date of Patent: September 17, 2019
    Assignee: SHARKNINJA OPERATING LLC
    Inventors: Aaron Michael Gill, Ross Richardson, Naomi Kalia Williams Zabel, Da Deng, Mete Gursel, Andrew John Roy Tattersfield, Niall Christopher Denham, Roger Neil Jackson, Ronan Patrick Leahy, Evan James White, Thomas Guerin, Chris Martin, Nathaniel R. Lavins, Mackenzie Lee Swanhart, Samuel Andrew Ferguson, Scott James Stewart
  • Patent number: 10420176
    Abstract: A domestic microwave oven is provided having an oven cavity, a water reservoir, a piping system coupling the reservoir and the oven cavity, and a pump for pumping a predetermined amount of water into the oven cavity. The pump is a mono-directional positive displacement pump and the piping system includes a by-pass coupled in parallel to the pump and an on/off electro valve configured to allow a drainage of the piping system when the pump is idle.
    Type: Grant
    Filed: June 17, 2016
    Date of Patent: September 17, 2019
    Assignee: Whirlpool Corporation
    Inventors: Power Lee, Jack Xu
  • Patent number: 10408462
    Abstract: A range has burner coil elements which have temperature switches as a portion of the replaceable coils. Upon reaching a predetermined temperatures, the switch opens and power through the burner element is secured. The burner elements are preferably open coil units. Lowering the temperature in a cooking utensil below common ignition temperatures while still allowing boiling is an objective of many embodiments.
    Type: Grant
    Filed: June 14, 2016
    Date of Patent: September 10, 2019
    Assignee: Brown Stove Works, Incv.
    Inventors: Todd A. Smith, Matthew H. Brown