With Power Feed Structure Patents (Class 219/746)
  • Patent number: 11108270
    Abstract: A control method for an inductive power supply (IPS), according to one embodiment of the present invention, can comprise the steps of: applying a ping for sensing an object; measuring a coil current; sensing the object on the basis of the coil current measurement result; transmitting, to the object, the minimum power for waking up a communication unit of the object, wherein the communication unit performs communication by using an out-of band communication protocol; receiving, from the object, pairing information through the out-of band communication protocol so as to perform pairing with the object; and transmitting main power to the paired object.
    Type: Grant
    Filed: February 18, 2016
    Date of Patent: August 31, 2021
    Assignee: LG ELECTRONICS INC.
    Inventors: Seonghun Lee, Byungsang Jung
  • 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: 11067442
    Abstract: A waveguide spectrometer includes at least one substrate layer with at least one waveguide. Each waveguide extends from an inlet face proceeding partly through the substrate layer to a reflecting element. A multiplicity of photo detectors is arranged on a front side of the substrate layer, while the photo detectors are electrically connected to an electronic read out system. The spectrometer can be made lightweight and easier to produce by forming the waveguides as surface waveguides, each showing a longitudinal opening with a width to the front side of the substrate layer between the inlet face and the reflecting element. The photo detectors are in print distributed at the front side on top of the substrate layer at least partly overlapping the longitudinal opening along an overall length of sampled region and the electrical connection of the photo detectors with the electronic read out system is achieved by a multiplicity of printed electrical conductors.
    Type: Grant
    Filed: July 5, 2017
    Date of Patent: July 20, 2021
    Assignees: MICOS ENGINEERING GMBH, EMPA EIDGENÖSSISCHE MATERIALPRÜFUNGS- UND FORSCHUNGSANSTALT
    Inventors: Mohammadreza Madi, Edoardo Alberti, Ivan Shorubalko
  • 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: 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: 10980088
    Abstract: This disclosure includes methods and systems that utilize energy absorption monitoring for intelligent electronic ovens with energy steering. One disclosed method for heating an item in an electronic oven includes introducing an application of energy into a heating chamber using an energy source coupled to an injection port, changing a distribution of the application of energy in the heating chamber by setting a configuration of the oven to a first configuration, and measuring an energy return from the heating chamber while the oven is in the first configuration. The measuring is conducted using a radio frequency directional power sensor. The method also includes determining that the energy return from the heating chamber exceeds a level, adjusting, in response to determining that the energy return exceeds the level, the configuration of the oven from the first configuration to an altered first configuration, and saving the altered first configuration in a memory.
    Type: Grant
    Filed: January 22, 2018
    Date of Patent: April 13, 2021
    Assignee: Markov LLC
    Inventors: Nick C. Leindecker, Leonard Robert Speiser, Arvind Antonio de Menezes Pereira, Parth Chadha
  • Patent number: 10912165
    Abstract: The present invention has a configuration of controlling a motor so as to stop a radiation antenna when the radiation antenna faces in a direction in which a reflected wave detection amount is minimized and to stop the radiation antenna when the radiation antenna faces in a different direction different from the direction in which the reflected wave detection amount is minimized. According to this configuration, first, the radiation antenna stops when facing in the direction in which the reflected wave detection amount is minimized. This extends a heating time under the most efficient condition, improving a heating efficiency in comparison with when the radiation antenna constantly rotates. Second, the radiation antenna stops when facing in the different directions. This causes uneven heating when the radiation antenna faces in the direction in which the reflected wave detection amount is minimized as well as when the radiation antenna faces in the different directions.
    Type: Grant
    Filed: March 23, 2017
    Date of Patent: February 2, 2021
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Koji Yoshino, Masafumi Sadahira, Masayuki Kubo
  • Patent number: 10904962
    Abstract: An electromagnetic cooking device includes an enclosed cavity; a set of radio frequency feeds configured to introduce electromagnetic radiation into the enclosed cavity to heat up and prepare food; a set of high-power radio frequency amplifiers coupled to the set of radio frequency feeds, each high-power amplifier comprising at least one amplifying stage configured to output a signal that is amplified in power with respect to an input radio frequency signal; a signal generator coupled to the set of high-power radio frequency amplifiers for generating the input radio frequency signal, and a controller. The controller can be configured to, among other things, cause the signal generator and selected ones of the set of high-power amplifiers to output a radio frequency signal, select from a set of phase values of radio frequency electromagnetic waves, and identify the resonant modes excited within the enclosed cavity.
    Type: Grant
    Filed: June 3, 2016
    Date of Patent: January 26, 2021
    Assignees: Whirlpool Corporation
    Inventors: Davide Guatta, Franco Brindani, Adriano Scaburri
  • Patent number: 10882071
    Abstract: A process for treating a surface coating of a bulk metal part, comprises the steps of placing, in a cavity, at least one what is called metal part including what is called a surface coating that is able to absorb microwaves at the frequency ?0, the cavity being surrounded by one or a plurality of first susceptors the dimensions, material and arrangement of which are configured to screen the microwaves at the frequency ?0, in the vicinity of each the metal part, and in emitting the microwaves at the frequency ?0 into the cavity.
    Type: Grant
    Filed: March 25, 2016
    Date of Patent: January 5, 2021
    Assignees: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, ECOLE NATIONALE SUPÉRIEURE D'INGÉNIEURS DE CAEN
    Inventors: Sylvain Marinel, Etienne Savary, Anthony Thuault, Romain Heuguet
  • Patent number: 10873995
    Abstract: The invention relates to a system (100) for preparing at least one food product (1), comprising: a cooking chamber (10), in which at least one preparation area (5) is provided, wherein the at least one food product (1) can be positioned and prepared at the least one preparation area (5), at least one antenna arrangement (30) for supplying energy of electromagnetic energy (80) into the cooking chamber (10), whereby the at least one food product (1) can be heated, one transmission device (40) for operating the antenna arrangement (30), wherein at least one antenna (31) of the antenna arrangement (30) is oriented depending on the preparation area (5) and is operable according to at least one operation mode by the transmission device (40), so that a performance-optimized temperature zone distribution for heating the food product (1) can be generated.
    Type: Grant
    Filed: March 13, 2018
    Date of Patent: December 22, 2020
    Assignee: Vorwerk & Co. Interholding GmbH
    Inventor: Hendrik Koetz
  • Patent number: 10869368
    Abstract: Provided is a microwave rice cooker, comprising a cavity structure, a door assembly and an inner pot (20). The cavity structure comprises a microwave transmitting mechanism, a cavity (2) provided with a cylindrical cooking chamber therein, and a top cap (1) and a bottom cap (5) located at two ends of the cooking chamber respectively. The bottom cap (5) closes the cooking chamber at the bottom. A top opening of the cooking chamber is formed on the top cap (1). The inner pot (20) can be put into or taken out of the cooking chamber through the top opening. The door assembly is mounted on the top cap (1) in an openable and closable manner so as to open or close the cooking chamber from the top. The microwave transmitting mechanism is mounted at the bottom of the bottom cap (5) to feed microwaves into the cooking chamber from the bottom. The microwave rice cooker achieves a two-in-one function of a microwave oven and a rice cooker.
    Type: Grant
    Filed: December 8, 2017
    Date of Patent: December 15, 2020
    Assignees: GUANGDONG MIDEA KITCHEN APPLIANCES MANUFACTURING CO. LTD., MIDEA GROUP CO. LTD.
    Inventors: Dingyuan Peng, Maoshun Chen, Xiangwei Tang, Chun Luan, Xuan Wang, Minyong Liu
  • Patent number: 10863593
    Abstract: Method and systems for heating an item in a chamber where a first electromagnetic wave is applied to an array of variable reflectance elements and a corresponding array of variable impedance devices are disclosed. The corresponding array includes first and second variable impedance devices. The first wave is reflected from the array to the item when the first device has a first impedance value. The reflecting places a local maximum of energy at a first location on the item. An impedance of the first device is altered. A second electromagnetic wave is applied and reflected. The reflecting places the local maximum at a second location on the item. Altering the impedance of the first variable impedance device alters a reflectance of a first variable reflectance element in the array of variable reflectance elements.
    Type: Grant
    Filed: June 15, 2018
    Date of Patent: December 8, 2020
    Assignee: Markov LLC
    Inventor: Nick C. Leindecker
  • Patent number: 10827568
    Abstract: A microwave oven comprising a cavity in which a material can be placed for heating and a magnetron for generating a microwave. The microwave oven further comprises an electromagnetic element adapted to interact with microwaves into the cavity and a control unit that provides a control signal to the electromagnetic element for modifying an impedance of the electromagnetic element during time of heating.
    Type: Grant
    Filed: May 13, 2014
    Date of Patent: November 3, 2020
    Assignees: Centre National de la Recherche Scientifique—CNRS, Universite Paris Diderot-Paris 7
    Inventors: Geoffroy Lerosey, Mathias Fink, Nadege Kaina, Mathieu Dupre
  • Patent number: 10753346
    Abstract: A microwave electrothermal thruster (MET) and its control system is disclosed and claimed. The MET control system uses a dielectric resonator oscillator (DRO) in series with a GaN MMIC-based Solid State Power Amplifier (SSPA) to generate microwave energy, transfer it to a thrust chamber, and heat a propellant that exits a nozzle, providing thrust. The control system uses feedback to provide autonomous control of the MET. A wide variety of propellants may be used, including, for example, hydrazine, ammonia, and water.
    Type: Grant
    Filed: August 17, 2017
    Date of Patent: August 25, 2020
    Assignee: NORTHROP GRUMMAN SYSTEMS CORPORATION
    Inventors: Daniel R. Sherman, Edward Lukas, Brandon Quon, Kurt Shaffer, Jonathan H. Dang, Matthew J. Pirih
  • Patent number: 10727675
    Abstract: A smart table is disclosed. The smart table includes a plate, an inverter configured to convert direct current (DC) power into alternative current (AC) power and to supply the AC power, a coil unit disposed below the plate and including a plurality of working coils heated by the AC power, a radio frequency identification (RFID) reader configured to recognize an RFID tag of a home appliance placed on the plate and to receive information on the home appliance from the RFID tag, and a processor configured to drive one or more of the plurality of working coils as wireless power transmission coils to perform control to transmit wireless power to the home appliance based on the received information.
    Type: Grant
    Filed: September 23, 2019
    Date of Patent: July 28, 2020
    Assignee: LG Electronics Inc.
    Inventors: Hyeunsik Nam, Euisung Kim, Wonchul Choi, Hyunwook Moon, Byungkyu Park
  • Patent number: 10720077
    Abstract: According to one example, a system includes a computing device having a processor that is operable to display a first portion of a cooking recipe. The system further includes a heat source system having a heat source operable to provide an amount of energy to be used to cook a food item in accordance with the cooking recipe, and a processor operable to adjust the amount of energy provided by the heat source based on one or more communications with the computing device. The system further includes an auxiliary button system having an interface operable to receive an instruction to move from a first step of the cooking recipe to a second step, and a processor operable to transmit, via a second communication link with the computing device, an indication of the instruction.
    Type: Grant
    Filed: February 17, 2017
    Date of Patent: July 21, 2020
    Assignee: Meyer Intellectual Properties Ltd.
    Inventors: Darren Erik Vengroff, Christoph Milz
  • Patent number: 10578361
    Abstract: A furnace system includes a heating chamber, a retort assembly, and a waveguide. The heating chamber includes a shell encompassing an insulation layer and a working volume, where the working volume is configured to receive at least one part for heat treatment. The retort assembly is supported within the insulation layer and includes an inner retort surface facing the working volume. The inner retort surface is formed of at least one carbon compound reflective of microwave radiation, and the retort assembly defines a retort aperture. The waveguide is configured to direct microwave radiation from a microwave source to the retort aperture.
    Type: Grant
    Filed: April 24, 2018
    Date of Patent: March 3, 2020
    Assignee: Desktop Metal, Inc.
    Inventors: Nathan Woodard, Emanuel M. Sachs
  • Patent number: 10549390
    Abstract: A body component has a side edge, which extends in a longitudinal direction and on which at least one pre-fastening device is formed. The pre-fastening device has a section that protrudes from the side edge in a transverse direction, on which section a tab pointing toward the side edge is formed. The tab can be bent in a vertical direction perpendicular to the longitudinal direction and is configured to be able to engage behind a frame edge of a vehicle frame part in a pre-fastening manner.
    Type: Grant
    Filed: March 27, 2018
    Date of Patent: February 4, 2020
    Assignee: Bayerische Motoren Werke Aktiengesellschaft
    Inventors: Stephan Busler, Franz Pfeffer, Johannes Walch, Josef Bachner, Christian Boeer
  • Patent number: 10424940
    Abstract: A smart table is disclosed. The smart table includes a plate, an inverter configured to convert direct current (DC) power into alternative current (AC) power and to supply the AC power, a coil unit disposed below the plate and including a plurality of working coils heated by the AC power, a radio frequency identification (RFID) reader configured to recognize an RFID tag of a home appliance placed on the plate and to receive information on the home appliance from the RFID tag, and a processor configured to drive one or more of the plurality of working coils as wireless power transmission coils to perform control to transmit wireless power to the home appliance based on the received information.
    Type: Grant
    Filed: March 27, 2017
    Date of Patent: September 24, 2019
    Assignee: LG Electronics Inc.
    Inventors: Hyeunsik Nam, Euisung Kim, Wonchul Choi, Hyunwook Moon, Byungkyu Park
  • Patent number: 10362641
    Abstract: A microwave oven includes a waveguide having an E-bend structure with multiple openings disposed on a lateral face of a heating chamber that allow the waveguide to communicate with the heating chamber. The waveguide has a first section for propagating a microwave from a magnetron toward the heating chamber, and a second section having a wide plane that abuts an outer wall of the heating chamber. The openings include at least one circularly-polarized-wave opening for generating a circularly polarized wave. A cross section of the first section orthogonally intersects a tube axis of the first section projects virtually along the tube axis of first section and onto a lateral face of the heating chamber, and the circularly-polarized-wave opening is configured such that its center is located outside the resultant projected region.
    Type: Grant
    Filed: March 11, 2015
    Date of Patent: July 23, 2019
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Yoshiharu Omori, Koji Yoshino, Masaharu Tsujimoto, Takahide Yamaguchi, Junji Hirata, Takayuki Akashi, Masafumi Sadahira, Masayuki Kubo
  • Patent number: 10291206
    Abstract: An acoustic wave device includes: a piezoelectric thin film resonator that is connected between a first node and a second node; and a resonant circuit that is connected in parallel with the piezoelectric thin film resonator between the first node and the second node, and has a resonant frequency f0 that meets a condition of 2×fa×0.92?f0 where fa represents an antiresonant frequency of the piezoelectric thin film resonator.
    Type: Grant
    Filed: April 26, 2017
    Date of Patent: May 14, 2019
    Assignee: TAIYO YUDEN CO., LTD.
    Inventors: Taisei Irieda, Yoshio Satoh, Tokihiro Nishihara, Shinji Taniguchi
  • Patent number: 10045403
    Abstract: A microwave heating device of the present invention comprises a heating chamber housing an object to be heated, a microwave generation portion generating a microwave, a waveguide portion propagating the microwave, and a plurality of microwave radiating portions radiating the microwave in the heating chamber, wherein the microwave radiating portions are arranged in a direction orthogonal to a direction of electric field and to a direction of propagation within the waveguide portion, and centers of the microwave radiating portions are arranged at positions corresponding to approximate node positions of the electric field within the waveguide portion. The microwave heating device is enabled to make uniform heat distribution in the object to be heated, without using a driving mechanism.
    Type: Grant
    Filed: January 30, 2013
    Date of Patent: August 7, 2018
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Daisuke Hosokawa, Koji Yoshino, Makoto Nishimura, Masafumi Sadahira, Tomoya Fujinami, Tomotaka Nobue, Yoshiharu Omori
  • Patent number: 9989417
    Abstract: Disclosed is a system for dielectrically processing a product in a radio frequency (RF) cavity. The system may include a cavity; an RF feeding module that includes a plurality of radiating elements configured to feed RF radiation into the cavity, and a plurality of dummy loads for receiving RF energy coupled from the cavity into the radiating elements; and the system includes a processor configured to (a) estimate an effect operating the system at each of a plurality of sets of operating parameters will have on the temperature of each of the dummy loads; (b) choosing among the plurality of sets of operating parameters at least one set based on the estimation; and (c) controlling the system to operate at the chosen at least one set of operating parameters.
    Type: Grant
    Filed: September 11, 2014
    Date of Patent: June 5, 2018
    Assignee: GOJI LIMITED
    Inventors: Avner Libman, Lior Darshan
  • Patent number: 9844782
    Abstract: An apparatus for preparing samples for chemical analysis includes a container receptacle for receiving a sample container having a crucible portion and an expansion portion. The container receptacle includes a heating compartment and a cooling compartment spaced apart from the heating compartment. The heating compartment is shaped to receive the crucible portion of the sample container, and the cooling compartment is shaped to receive the expansion portion of the sample container. The apparatus also includes a heating mechanism for heating the sample within the crucible portion of the sample container, a first cooling mechanism for cooling the expansion portion of the sample container, and a second cooling mechanism for cooling the crucible portion of the sample container.
    Type: Grant
    Filed: June 18, 2014
    Date of Patent: December 19, 2017
    Assignee: ColdBlock Technologies Inc.
    Inventors: Ron J. Emburgh, Ravi K. Kanipayor
  • Patent number: 9131543
    Abstract: A method for matching an impedance of a system comprising a cavity and one or more feeds to an impedance of one or more sources of electromagnetic radiation irradiating a plurality of frequencies into the cavity via the feeds, comprising: determining a plurality of s-parameter of the system for a frequency band; determining the system impedance based on the s-parameters; and modifying the system impedance according to the difference between the impedance of the system and the impedance of the source.
    Type: Grant
    Filed: August 28, 2008
    Date of Patent: September 8, 2015
    Assignee: GOJI LIMITED
    Inventors: Eran Ben-Shmuel, Alexander Bilchinsky, Lior Darshan
  • Patent number: 9089005
    Abstract: A control system for an oven including a plurality of heating elements positioned within the cooking cavity includes a temperature sensor configured to detect an air temperature within the cooking cavity, a user interface for receiving a desired temperature set point command, and a controller operatively coupled to the temperature sensor and user interface. The controller is configured to determine a power splitting ratio between the first and second heating elements based on user-specified cooking mode and/or type of food being cooked, determine a total power command signal based on a determined error value between the detected cavity air temperature and the desired temperature set point command, and adjust a power level of each of the first and second heating elements based on the total power command and the power splitting ratio.
    Type: Grant
    Filed: February 21, 2012
    Date of Patent: July 21, 2015
    Assignee: General Electric Company
    Inventors: Stephen Boedicker, James Bach
  • Patent number: 9075085
    Abstract: A test system for analyzing a circuit carrier which has been populated with a radio-frequency structure comprises a network analyzer having a signal generator for generating excitation signal which can be supplied to the radio-frequency structure via a signal line, an evaluation device for analyzing a measurement signal which returns from the radio-frequency structure, and a contact device which can be connected to the signal line and is intended to feed the excitation signal into the radio-frequency structure and to output the measurement signal. The contact device preferably has a measuring tip which is intended to hold test needles and can be used to make contact with a test point which is arranged on the circuit carrier and can be connected to the radio-frequency structure for signaling purposes.
    Type: Grant
    Filed: January 9, 2007
    Date of Patent: July 7, 2015
    Assignee: Rohde & Schwarz GmbH & Co. KG
    Inventor: Josef Koeppl
  • Patent number: 9078297
    Abstract: A system for heating one or more objects includes a first housing having a power unit configured to generate radio frequency (EM) radiation. One or more second housings include a heating unit having a cavity for positioning the one or more objects. One or more EM radiation conducting elements are configured to conduct the EM radiation from the power unit to the cavity for heating the one or more objects. The first housing and the one or more of the second housings are physically separated from one another.
    Type: Grant
    Filed: February 19, 2009
    Date of Patent: July 7, 2015
    Assignee: GOJI LIMITED
    Inventors: Alexander Bilchinsky, Ginadi Shaham, Eran Ben-Shmuel
  • Patent number: 8974743
    Abstract: The invention relates to a device for continuously carrying out chemical reactions. The device comprises a microwave generator, a microwave applicator accommodating a microwave-transparent tube, and an isothermal reaction section which is arranged such that the material to be reacted is guided inside the microwave-transparent tube through a microwave applicator which is used as the heating zone and in which it is heated to reaction temperature by means of microwaves that are emitted from the microwave generator into the microwave applicator. The material to be reacted, which is heated and optionally under pressure, is transferred from the microwave applicator to an isothermal reaction zone once it has left the heating zone, said reaction zone being arranged downstream of the heating zone, and is cooled once it has left the isothermal reaction zone.
    Type: Grant
    Filed: June 9, 2010
    Date of Patent: March 10, 2015
    Assignee: Clariant Finance (BVI) Limited
    Inventors: Matthias Krull, Roman Morschhaeuser
  • Patent number: 8941040
    Abstract: An electromagnetic heater for heating an irregularly shaped object, including: a cavity within which an object is to be placed; at least one feed which feeds UHF or microwave energy into the cavity; and a controller that controls one or more characteristics of the cavity or energy to assure that the UHF or microwave energy is deposited uniformly in the object within ±30% over at least 80% of the volume of the object.
    Type: Grant
    Filed: October 6, 2010
    Date of Patent: January 27, 2015
    Assignee: Goji Limited
    Inventors: Eran Ben-Shmuel, Alexander Bilchinsky
  • Patent number: 8872080
    Abstract: Example embodiments relate to a multiple inputs and multiple outputs (MIMO) analyzer for an accurate control of electromagnetic fields inside a multimode resonant chamber with two or more cavities coupled in an accurate way through a slotted piece with slots or waveguide. The MIMO analyzer may include broadband antennas, different types of lenses, and different stirrers, which may be both metallic and non-metallic. These elements, together with some processes such as precise location of under-test elements out of the lower cavity allow for controlling the electromagnetic fields on its interior. This control permits the emulation of the behavior of wireless communication terminals under different fading scenarios, both indoors and outdoors. Some of the features and procedures of the MIMO analyser may be used in industrial microwave heating processes for drying and curing of materials, also known as microwave ovens, allowing a greater efficiency and homogenization in the processes.
    Type: Grant
    Filed: September 3, 2009
    Date of Patent: October 28, 2014
    Assignee: Emite Ingenieria, Slne
    Inventors: Juan Francisco Valenzuela Valdes, David Agapito Sanchez Hernandez, Antonio Manuel Martinez Gonzalez, Juan Monzó Cabrera
  • Patent number: 8803051
    Abstract: A microwave oven includes a cavity having a cooking chamber; a magnetron oscillating microwave radiation used for cooking food in the cooking chamber; and a plurality of radiation openings through which the microwave radiation is radiated into the cooking chamber, each of the radiation openings having a length in a direction where the microwave radiation is guided by a waveguide, the length being greater or less than ?/4.
    Type: Grant
    Filed: April 1, 2009
    Date of Patent: August 12, 2014
    Assignee: LG Electronics Inc.
    Inventors: Sang-Ryul Lee, Kyu-Young Kim, Jae-Myung Chin, Dong-Han Kim, Si-Young Choi, Sung-Ho Choi
  • Patent number: 8759729
    Abstract: A method of delivering energy to an object in a cavity may include transmitting electromagnetic energy to the cavity at a plurality of frequencies. At each of the plurality of frequencies, the method may also include determining an efficiency of energy transfer into the object and adjusting power transmitted at each of the plurality of frequencies such that a multiplicative product of the efficiency and the power transmitted is substantially constant across each of the plurality of frequencies.
    Type: Grant
    Filed: May 4, 2012
    Date of Patent: June 24, 2014
    Assignee: Goji Limited
    Inventors: Eran Ben-Shmuel, Alexander Bilchinsky
  • Patent number: 8759726
    Abstract: There is described a power splitter for directing electromagnetic power comprising: an input port for receiving the electromagnetic power; at least one dielectric element placed inside the power splitter; at least two output ports for outputting the power according to a splitting ratio, the at least two output ports placed on a surface opposite to the input port; and at least one dielectric moving device for positioning the at least one dielectric element between the at least two output ports to dynamically direct the power into the at least two output ports according to the power splitting ratio.
    Type: Grant
    Filed: December 11, 2008
    Date of Patent: June 24, 2014
    Assignee: SCP Science
    Inventors: Art Ross, George Feilders, Sébastien Roy, Jules Gauthier, Ramin Deban, Cevdet Akyel
  • Patent number: 8680446
    Abstract: A microwave heating apparatus includes a microwave generation part 10 using a semiconductor element, and first and second heating chambers 100a, 100b to each of which a microwave generated in the microwave generation part is fed. A reflected microwave returned from at least one of the first and second heating chambers 100a, 100b to the microwave generation part is transmitted to the other heating chamber by a circulation type non-reciprocal circuit 118, so that generated power of the microwave generation part is substantially completely consumed upon heating of an article to be heated.
    Type: Grant
    Filed: January 28, 2009
    Date of Patent: March 25, 2014
    Assignee: Panasonic Corporation
    Inventors: Tomotaka Nobue, Kenji Yasui, Yoshiharu Oomori, Makoto Mihara
  • Patent number: 8674275
    Abstract: A microwave applicator assembly includes a microwave applicator that excites TE modes and provides a generally circular heating pattern in a lossy dielectric material. The microwave applicator has a processing chamber bounded by a circumferential wall in which a plurality of indents are formed. The microwave applicator assembly may further include a feed waveguide coupled to the microwave applicator for inputting microwaves into the processing chamber. The microwave applicator assembly may further include one or more choking sections in communication with the processing chamber to enhance heating efficiency and reduce microwave leakage.
    Type: Grant
    Filed: June 29, 2007
    Date of Patent: March 18, 2014
    Assignee: Corning Incorporated
    Inventors: Kevin Robert Brundage, Jacob George, Elizabeth Marie Vileno
  • Patent number: 8658953
    Abstract: An antenna cover assembly for a high-temperature operating environment has a cover plate, gasket portions, and a retainer plate. The cover plate has an inner side and an outer side, the cover plate being translucent to at least one selected frequency of electromagnetic energy. The gasket portions are each located adjacent one of the inner and outer sides, each gasket portion being configured for sealingly engaging the adjacent side. The retainer plate is configured for attachment to a structure located in a high-temperature operating environment. The retainer plate has a sealing flange adapted for clamping the cover plate generally adjacent an antenna portion of a waveguide.
    Type: Grant
    Filed: October 30, 2007
    Date of Patent: February 25, 2014
    Assignee: Turbochef Technologies, Inc.
    Inventors: David H. McFadden, David A. Bolton
  • Patent number: 8586899
    Abstract: An apparatus and method for processing food products is provided. The product conditioning system includes an inlet assembly, a pressurizeable tunnel and an outlet assembly. The inlet assembly and outlet assembly include a pair of vertically extending pressure vessels having entry and exit openings which are both sealable by doors to provide liquid and gaseous tight seals. The inlet and outlet assembly pressure vessels further include a pair of vertically extending parallel screws for transporting food products from one end of the pressure vessel to the other. The pressurizeable tunnel includes a heating stage having microwave sources for irradiating food products so as to pasteurize or sterilize prepackaged food. The pressurizeable tunnel further includes a heat maintenance stage and product cooling stage. Both the heat maintenance stage and product cooling stage include vertically extending pressure vessels.
    Type: Grant
    Filed: November 24, 2008
    Date of Patent: November 19, 2013
    Inventors: Jeffrey H. Mackay, E. Eugene Eves, II, Thomas D. Wendel
  • Patent number: 8420991
    Abstract: A microwave heating apparatus includes a microwave generation part (5) having a plurality of output parts, a heating chamber (4) to contain an object to be heated, a plurality of feeding parts (21a, 21b, 21c, 21d) supplying outputs of the plurality of output parts to the heating chamber, and a control part (6) controlling microwave radiation from the plurality of feeding parts to control an electromagnetic wave distribution in the heating chamber, in which a microwave is concentrated on the object to be heated put in the heating chamber.
    Type: Grant
    Filed: July 10, 2008
    Date of Patent: April 16, 2013
    Assignee: Panasonic Corporation
    Inventors: Makoto Mihara, Tomotaka Nobue, Kenji Yasui, Yoshiharu Oomori
  • Publication number: 20120267361
    Abstract: A method of delivering energy to an object in a cavity may include transmitting electromagnetic energy to the cavity at a plurality of frequencies. At each of the plurality of frequencies, the method may also include determining an efficiency of energy transfer into the object and adjusting power transmitted at each of the plurality of frequencies such that a multiplicative product of the efficiency and the power transmitted is substantially constant across each of the plurality of frequencies.
    Type: Application
    Filed: May 4, 2012
    Publication date: October 25, 2012
    Inventors: Eran Ben-Shmuel, Alexander Bilchinsky
  • Publication number: 20120241445
    Abstract: The present invention relates to a cooking appliance employing microwaves. According to the present invention, a cooking appliance employing microwaves comprises: a microwave generator for generating and outputting microwaves, provided with an amplifier for performing frequency oscillation and amplification; and a feeder for outputting the outputted microwaves into a cavity. Accordingly, high power microwaves can be easily generated without a separate frequency oscillator.
    Type: Application
    Filed: June 18, 2010
    Publication date: September 27, 2012
    Applicant: LG ELECTRONICS INC.
    Inventors: Sung Hun Shim, Jin Yul Hu, Hyun Wook Moon, Heung Sik Choi, Wan Soo Kim
  • Patent number: 8207479
    Abstract: An electromagnetic heater for heating an irregularly shaped object, including: a cavity within which an object is to be placed; at least one feed which feeds UHF or microwave energy into the cavity; and a controller that controls one or more characteristics of the cavity or energy to assure that the UHF or microwave energy is deposited uniformly in the object within ±30% over at least 80% of the volume of the object.
    Type: Grant
    Filed: August 20, 2008
    Date of Patent: June 26, 2012
    Assignee: Goji Limited
    Inventors: Eran Ben-Shmuel, Alexander Bilchinsky
  • Patent number: 8186076
    Abstract: A drying apparatus for honeycomb formed bodies includes: a drying chamber having a drying space to store undried honeycomb formed bodies; a microwave generator that generates microwaves; and a plurality of waveguides for introducing the microwaves into the drying chamber. On side surfaces of the drying chamber, provided is a plurality of microwave introduction ports for introducing the microwaves generated by the microwave generator into the drying space inside the drying chamber, the waveguides are disposed at the microwave introduction ports, and irradiation ports of the waveguides are provided directed to two or more different directions toward the drying space of the drying chamber.
    Type: Grant
    Filed: March 8, 2011
    Date of Patent: May 29, 2012
    Assignee: NGK Insulators, Ltd.
    Inventor: Shuichi Takagi
  • Patent number: 8038936
    Abstract: A cooking device includes a cooking chamber; a first deodorization region along which air from the cooking chamber flows and in which a plasma discharge is generated for removing odor-producing materials generated in the cooking chamber from the air; and a bypass region along which air from the cooking chamber flows to bypass the first deodorization region.
    Type: Grant
    Filed: September 22, 2008
    Date of Patent: October 18, 2011
    Assignee: LG Electronics Inc.
    Inventors: Sung Hun Sim, Hyun Jung Kim
  • Patent number: 7886658
    Abstract: A speed cooking with improved gas flow by-pass mechanism for radiant cooking mode. A speed cooking oven with radiant mode is disclosed comprising a cooking cavity, a controller, thermal heating source, blower assembly, air directing means, a vent assembly and a single door gas by-pass system. Hot gas is circulated by the blower motor assembly into the oven cavity where the hot air is directed in a manner wherein a conflicting, colliding turbulent gas flow is directed at a food product providing for the rapid cooking of food products. Alternatively, a single movable door may be utilized that operates between an open position wherein gas flow exhausts from the top of the oven or in the closed position wherein gas is diverted through a conduit and back to the blower mechanism.
    Type: Grant
    Filed: October 30, 2007
    Date of Patent: February 15, 2011
    Assignee: Turbochef Technologies, Inc.
    Inventors: David H. McFadden, David A. Bolton
  • Publication number: 20110031240
    Abstract: An electromagnetic heater for heating an irregularly shaped object, including: a cavity within which an object is to be placed; at least one feed which feeds UHF or microwave energy into the cavity; and a controller that controls one or more characteristics of the cavity or energy to assure that the UHF or microwave energy is deposited uniformly in the object within ±30% over at least 80% of the volume of the object.
    Type: Application
    Filed: October 19, 2010
    Publication date: February 10, 2011
    Inventors: Eran BEN-SHMUEL, Alexander Bilchinsky
  • Publication number: 20110017728
    Abstract: An electromagnetic heater for heating an irregularly shaped object, including: a cavity within which an object is to be placed; at least one feed which feeds UHF or microwave energy into the cavity; and a controller that controls one or more characteristics of the cavity or energy to assure that the UHF or microwave energy is deposited uniformly in the object within ±30% over at least 80% of the volume of the object.
    Type: Application
    Filed: October 6, 2010
    Publication date: January 27, 2011
    Inventors: Eran BEN-SHMUEL, Alexander Bilchinsky
  • Patent number: 7820951
    Abstract: An instrument for carrying out controlled microwave assisted chemical processes, and that is particularly useful for handling relatively small samples. The instrument includes a microwave-transparent reaction vessel with an open mouth, a pressure-resistant seal on the mouth of the vessel, and a needle, portions of which penetrate the seal with a first end of the needle and provide fluid communication into the vessel. A pressure transducer is at the opposite end of the needle and in fluid communication with the interior of the vessel through the needle. The instrument defines a pressure control flow path from a portion of the needle outside of the vessel to a fluid port, the flow path being in communication with the needle, the interior of the vessel and the transducer. A controllable pressure release valve for the flow path is associated with the port.
    Type: Grant
    Filed: September 10, 2007
    Date of Patent: October 26, 2010
    Assignee: CEM Corporation
    Inventors: Edward Earl King, James Edward Thomas
  • Publication number: 20100219184
    Abstract: A radio frequency heater is disclosed including a vessel for containing material to be heated and a radio frequency radiating surface. The vessel has a wall defining a reservoir. The radio frequency radiating surface at least partially surrounds the reservoir. The radiating surface includes two or more circumferentially spaced petals that are electrically isolated from other petals. The petals are positioned to irradiate at least a portion of the reservoir, and are adapted for connection to a source of radio frequency alternating current. A generally conical tank or tank segment having a conically wound radio frequency applicator is also contemplated. Also, a method of heating an oil-water process stream is disclosed. In this method a radio frequency heater and an oil-water process stream are provided. The process stream is irradiated with the heater, thus heating the water phase of the process stream.
    Type: Application
    Filed: March 2, 2009
    Publication date: September 2, 2010
    Applicant: HARRIS CORPORATION
    Inventor: Francis Eugene Parsche
  • Publication number: 20100176123
    Abstract: A microwave heating apparatus includes a microwave generation part (5) having a plurality of output parts, a heating chamber (4) to contain an object to be heated, a plurality of feeding parts (21a, 21b, 21c, 21d) supplying outputs of the plurality of output parts to the heating chamber, and a control part (6) controlling microwave radiation from the plurality of feeding parts to control an electromagnetic wave distribution in the heating chamber, in which a microwave is concentrated on the object to be heated put in the heating chamber.
    Type: Application
    Filed: July 10, 2008
    Publication date: July 15, 2010
    Inventors: Makoto Mihara, Tomotaka Nobue, Kenji Yasui, Yoshiharu Oomori