Patents Examined by Quang T. Van
  • Patent number: 11122653
    Abstract: A microwave oven having an enclosed cavity is provided including an RF signal generator; a solid state amplifier having a coplanar waveguide transmission line, the amplifier coupled to the RF signal generator for receiving and amplifying the RF signals generated thereby; an intermediate transition including: a metal boundary having a first section and a second section having different dimensions than that of the first section; a first dielectric disposed in the first section; a second dielectric disposed in the second section; and a center conductor extending from a first side of the substrate to a second side of the substrate through the first and second dielectrics, where a first end of the center conductor is connected to an output of the amplifier; and an antenna coupled to a second end of the center conductor for receiving the amplified RF signals and introducing electromagnetic radiation into the cavity.
    Type: Grant
    Filed: September 28, 2017
    Date of Patent: September 14, 2021
    Assignee: Whirlpool Corporation
    Inventors: Natalia Roumpedaki, Francesco Giordano
  • Patent number: 11111067
    Abstract: A package suitable for storing and cooking foods without user manipulation includes a venting mechanism actuated primarily or exclusively by temperature, rather than pressure. A vent hole can be sealed by a patch attached by a thermoplastic adhesive having a selected, well characterized Tg, or the patch itself can be a thermoplastic polymer having a selected Tg. The patch can be convection-heated, or a microwave absorbing susceptor material can be applied to the adhesive or patch for direct microwave heating. The patch can include a region that is melted by convection or by a susceptor material. A porous patch can be sealed by a low melting temperature polymer or by thermally sensitive ink. And/or, microwave susceptor material can be applied directly to a package wall and can melt a ventilation hole through the wall when a specified amount of microwave energy has been applied.
    Type: Grant
    Filed: June 7, 2018
    Date of Patent: September 7, 2021
    Assignee: MarstonMAP, LLC
    Inventor: Elizabeth Varriano-Marston
  • Patent number: 11116050
    Abstract: An imaging system for a high-heat cooking appliance, including a camera system including an optical sensor, a lens, and a set of light emitters; and a camera cooling mechanism thermally connected to the camera system.
    Type: Grant
    Filed: February 5, 2019
    Date of Patent: September 7, 2021
    Assignee: June Life, Inc.
    Inventors: Nikhil Bhogal, Matthew Van Horn, Nikko Lubinski, Mathias Schmidt
  • Patent number: 11109454
    Abstract: An electromagnetic cooking device includes a heating cavity and at least one electromagnetic energy source configured to generate radiation in communication with the heating cavity via a supply cavity. The cooking apparatus further includes a first port configured to emit the radiation into a first region of the heating cavity from the supply cavity and a second port configured to emit the radiation into a second region of the heating cavity from the supply cavity. A septum is disposed along the supply cavity. The septum is configured to adjust a proportion of the radiation emitted from the first port and the second port into the heating cavity.
    Type: Grant
    Filed: November 18, 2016
    Date of Patent: August 31, 2021
    Assignee: Whirlpool Corporation
    Inventors: Edoardo De Titta, Giovanni Dore, Nelson Rene Garcia-Polanco
  • Patent number: 11102853
    Abstract: A microwave heating system includes: a power supply; a first semiconductor module configured to receive power from the power supply and to generate a first microwave; a second semiconductor module configured to receive power from the power supply and to generate a second microwave; a heating chamber that is configured to accommodate an object at an inside of the heating chamber and that allows transmission of the first microwave and the second microwave to the inside of the heating chamber; and a control unit. The control unit is configured to control operation of each of the first semiconductor module and the second semiconductor module, and to control at least one of a frequency, a phase, or a magnitude of each of the first microwave and the second microwave to increase a heating uniformity of the object.
    Type: Grant
    Filed: November 7, 2018
    Date of Patent: August 24, 2021
    Assignee: LG Electronics Inc.
    Inventors: Jung Hyeong Ha, Sung-Hun Sim, Hyo Jin An, Jongseong Ji, Yun Byung Chae
  • Patent number: 11102856
    Abstract: A process for heating articles includes sequentially passing loaded carriers in a continuous manner through a first processing section and sequentially passing said plurality of loaded carriers in an incremental manner through a second processing section using an incremental convey segment. The incremental convey segment includes sequential carrier-receiving slots, each carrier-receiving slot configured to receive one of the loaded carriers. The incremental convey segment is further configured to be move incrementally at multiples of discrete intervals corresponding to the carrier-receiving slots. The process further includes sequentially passing the loaded carriers in a continuous manner through a third processing section and heating articles supported by the carriers with microwave energy in at least one of the processing sections, the heating of the articles occurring while the articles are at least partially submerged in a liquid bath and at an pressure greater than atmospheric pressure.
    Type: Grant
    Filed: October 19, 2018
    Date of Patent: August 24, 2021
    Assignee: 915 LABS, INC.
    Inventor: Harold Dail Kimrey, Jr.
  • Patent number: 11102850
    Abstract: The invention relates to a levitation melting method and an apparatus for producing casting bodies with tilted induction units. During this method, induction units are employed in which the opposing ferrite poles with the induction coils are not arranged lying in one plane, but tilted at a determined angle to the levitation plane. In this way, an increase in efficiency of the induced magnetic field for melting the batches can be achieved with the induction units. The tilted arrangement increases the portion of the induced magnetic field that effectively contributes to the holding force of the field for levitation of the melt.
    Type: Grant
    Filed: July 9, 2019
    Date of Patent: August 24, 2021
    Assignee: ALD Vacuum Technologies GmbH
    Inventors: Sergejs Spitans, Henrik Franz, Bjoern Sehring, Markus Holz, Andreas Krieger
  • Patent number: 11089661
    Abstract: A defrosting system includes a radio frequency (RF) signal source, at least one electrode proximate to a cavity within which a load to be defrosted is positioned, a transmission path between the RF signal source and the electrode, at least one bus bar in the transmission path that includes multiple ports to which the electrode may be coupled, a repositionable shelf that is attached to the electrode, and multiple support structures disposed at side-walls of the cavity that support the repositionable shelf. Standoff isolators may attach the electrode to the repositionable shelf and may electrically isolate the electrode from the repositionable shelf. The vertical position of the electrode may be changed by moving the repositionable shelf to be supported by different support structures of the multiple support structures while coupling the electrode to a different port of the multiple ports of the bus bar.
    Type: Grant
    Filed: December 14, 2018
    Date of Patent: August 10, 2021
    Assignee: NXP USA, Inc.
    Inventors: David Paul Lester, Lionel Mongin
  • Patent number: 11083052
    Abstract: A cooking apparatus including a transmission antenna for irradiating a substance to be cooked with beamformed electromagnetic waves; a reception antenna for receiving reflected waves reflected from the substance to be cooked; and a controller for determining the temperature of the substance to be cooked corresponding to the received reflected waves on the basis of the property in which the electromagnetic waves, with which the substance to be cooked is irradiated, are reflected differently in accordance with the temperature of the substance to be cooked.
    Type: Grant
    Filed: October 13, 2016
    Date of Patent: August 3, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Soon-cheol Kweon, Joon-hyung Kwon
  • Patent number: 11083053
    Abstract: A process for heating articles in a heating system includes passing an article in a carrier through a heating chamber that is at least partially filled with a liquid medium to form a liquid bath. The process further includes heating the article in the carrier by at least partially submerging the article into the liquid bath during heating, the heating being performed, at least in part, using microwave energy. The process further includes one or more of adding fluid into and removing fluid from at least one location in the heating chamber to maintain a temperature profile across the heating chamber. In one implementation, the temperature of the liquid bath at an inlet area of the heating chamber is at least 10° C. cooler than a temperature of the liquid bath at an outlet area of the heating chamber.
    Type: Grant
    Filed: October 19, 2018
    Date of Patent: August 3, 2021
    Assignee: 915 LABS, INC.
    Inventor: Harold Dail Kimrey, Jr.
  • Patent number: 11071176
    Abstract: A divider assembly is provided for dividing a cooking cavity of a microwave oven into two cooking subcavities. The divider assembly includes a first tempered glass panel, a metal frame extending around the periphery of the first tempered glass panel to support the first tempered glass panel, a honeycomb core positioned above the first tempered glass panel, a second tempered glass panel positioned above the honeycomb core, and a gasket extending around the periphery of the metal frame for engaging metal walls of the microwave oven, wherein the gasket includes small-diameter, long-length carbon nano-tubes.
    Type: Grant
    Filed: August 11, 2016
    Date of Patent: July 20, 2021
    Assignee: Whirlpool Corporation
    Inventors: Muhammad Khizar, Vincent D. Csapos
  • Patent number: 11064575
    Abstract: An induction heating device includes first and second working coils connected to each other electrically in parallel, an inverter unit configured to cause a resonant current to flow in at least one of the first working coil or the second working coil, a first semiconductor switch configured to turn on and off the first working coil; a second semiconductor switch configured to turn on and off the second working coil; and a control unit configured to apply the resonant current to the first working coil or the second working coil by controlling the inverter unit, the first semiconductor switch, and the second semiconductor switch, and, based on a number of pulses or a frequency of the resonant current, to detect whether a target object is located at a location corresponding to the first working coil or the second working coil.
    Type: Grant
    Filed: October 19, 2018
    Date of Patent: July 13, 2021
    Assignee: LG Electronics Inc.
    Inventors: Hyunwook Moon, Eui Sung Kim, Dooyong Oh
  • Patent number: 11064576
    Abstract: Disclosed is a device configured to inductively heat one or more objects and to wirelessly transfer power to one or more objects. The device includes a first working coil, an inverter unit configured to cause a resonant current to flow in the first working coil by performing a switching operation, a first detection unit connected to the first working coil and configured to detect the resonant current applied to the first working coil, and a control unit configured to: determine whether a target object is located at a location corresponding to the first working coil by controlling operation of the inverter unit and the first detection unit; or to control output of the first working coil.
    Type: Grant
    Filed: October 19, 2018
    Date of Patent: July 13, 2021
    Assignee: LG Electronics Inc.
    Inventors: Hyunwook Moon, Eui Sung Kim, Seungbok Ok
  • Patent number: 11064577
    Abstract: An induction heating device includes: a working coil set including a first working coil connected to a first resonant capacitor and a second working coil connected to a second resonant capacitor; an inverter that performs a switching operation to apply a resonant current to at least one of the first or second working coil; a current transformer that adjusts a magnitude of the resonant current and that transmits the resonant current having the adjusted magnitude to the working coil set; a first relay that selectively connects a first end of the second working coil to the current transformer or the second resonant capacitor; a second relay that selectively connects a to second end of the second working coil to an end of the first working coil or the second resonant capacitor; and a control unit configured to control operations of the inverter and the first and second relays, respectively.
    Type: Grant
    Filed: November 20, 2018
    Date of Patent: July 13, 2021
    Assignee: LG Electronics Inc.
    Inventors: Younghwan Kwack, Seongho Son, Jaekyung Yang, Yongsoo Lee
  • Patent number: 11060208
    Abstract: A system for manufacturing purified shellac floss from crude shellac includes a spinner unit, and a rotatable head with a cavity to accommodate the crude shellac. A microwave generator unit is configured to supply microwave radiation to the spinner unit. A collection unit has a side wall and an end wall defining an interior volume and is configured to collect the purified shellac floss.
    Type: Grant
    Filed: March 22, 2021
    Date of Patent: July 13, 2021
    Assignee: KING ABDULAZIZ UNIVERSITY
    Inventors: Sherif Shawki Zaki Hindi, Uthman Mohammed Ahmed Dawoud, Khalid Ali Mohammed Asiry
  • Patent number: 11056763
    Abstract: A wireless signal repeater includes an interior antenna located in an interior a cooking appliance, and an exterior antenna located outside the cooking appliance. A coupling portion connects the interior antenna to the exterior antenna through a hole in a wall of the cooking appliance for wirelessly retransmitting wireless signals received by the wireless signal repeater. According to another aspect, a cooking appliance includes a cooking chamber for cooking food, and an interior antenna located inside the cooking chamber. An exterior antenna is located on an exterior of the cooking appliance, and a coupling portion is configured to connect the interior antenna with the exterior antenna. According to another aspect, an aperture is located in a cooking chamber and a reflector is mounted over the aperture on an exterior of the cooking appliance and is configured to narrow a radiation pattern for wireless signals transmitted through the aperture.
    Type: Grant
    Filed: June 1, 2018
    Date of Patent: July 6, 2021
    Assignee: Apption Labs Limited
    Inventors: Teemu Nivala, Janne Petteri Heiskanen, Olli Toivo Talvitie, Ming-Hao Yeh
  • Patent number: 11051371
    Abstract: An electromagnetic cooking device includes an enclosed cavity, a plurality of RF feeds configured to introduce electromagnetic radiation into the cavity and to measure forward and backward power, and a controller configured to: select a heating target corresponding to an amount of energy that is to be to delivered to each symmetry plane in the cavity; generate a heating strategy based on the heating target to determine a sequence of desired heating patterns, the heating strategy having a selected sequence of resonant modes for energy transfer to the cavity that corresponds to the sequence of desired heating patterns; excite the cavity with a selected set of phasors corresponding to each resonant mode of the selected sequence to create heating patterns; and monitor the created heating patterns to use closed-loop regulation to selectively modify the sequence of resonant modes based on the desired heating patterns.
    Type: Grant
    Filed: October 19, 2016
    Date of Patent: June 29, 2021
    Assignee: Whirlpool Corporation
    Inventor: Davide Guatta
  • Patent number: 11046442
    Abstract: Method, system, and aircraft for providing anti-ice protection including a supply of ferrofluid that is flowed out of orifices along a first region of an aerodynamic surface. The flowed ferrofluid is urged toward an aperture on a second region. The aperture is arranged relative to a magnetic field generator. A magnetic field generated by the magnetic field generator attracts the ferrofluid into the aperture while water droplets carried by the ferrofluid continue past the aperture.
    Type: Grant
    Filed: July 30, 2018
    Date of Patent: June 29, 2021
    Assignee: THE BOEING COMPANY
    Inventor: Steve G. Mackin
  • Patent number: 11045104
    Abstract: A system and method for inductive heating applications includes positioning one or more inductive heating elements in a location, delivering electromagnetic radiation, by a radiation source, to heat at least a portion of the one or more inductive heating elements, and detecting, by a detector, the heat generated by the one or more inductive heating elements. The system and method also include controlling, by a processing unit, a condition based on the detected heat.
    Type: Grant
    Filed: October 22, 2018
    Date of Patent: June 29, 2021
    Inventor: Bernard Fryshman
  • Patent number: 11039511
    Abstract: A defrosting system includes an RF signal source, one or more electrodes, a transmission path between the RF signal source and the electrode(s), and an impedance matching network coupled along the transmission path. A system controller may modify the impedance matching network to reduce the reflected signal power. The system controller may determine an initial estimate of the mass of the load. Desired signal parameters for the RF signal may be determined based on the initial estimated mass of the load. The system controller may determine a refined estimate of the load mass based on a rate of change of an S11, VSWR, or reflected power parameter measured at the transmission path, or based on elapsed time between matches. Refined signal parameters for the RF signal may be determined based on the refined estimated mass.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: June 15, 2021
    Assignee: NXP USA, Inc.
    Inventors: James Eric Scott, Nicholas Justin Mountford Spence, Hung Hoa Tran