Rotating Patents (Class 219/749)
  • Patent number: 11085694
    Abstract: This invention describes large microwave/radiofrequency (RF/MW) heating equipments scalable to any size heated with RF/MW heating systems employing multiple magnetrons independent of its wave characteristics arranged in a particular fashion to avoid wave interferences and concentrated heating without turn tables. The invention also explains the various embodiments of the invention like solvent dehydration and solvent recovery using the above mentioned invention.
    Type: Grant
    Filed: May 20, 2015
    Date of Patent: August 10, 2021
    Assignee: PELICAN BIOTECH & CHEMICAL LABS PVT LTD
    Inventors: Priya Raghavendra Rao, Manoj Chuzhattil Narayanan, Thomas Jacob
  • Patent number: 11087303
    Abstract: A method for reading information stored in an electronic tag includes (a) initiating a tag reading process during which information stored in an electronic tag is read by an electronic reading device, (b) emitting radio signals from an antenna of the electronic tag reading device toward a predetermined area while moving the antenna, and (c) after step (b), stopping the emitting of the radio signals and the moving of the antenna. Steps (b) and (c) are repeated one or more times during the tag reading process.
    Type: Grant
    Filed: May 7, 2020
    Date of Patent: August 10, 2021
    Assignee: TOSHIBA TEC KABUSHIKI KAISHA
    Inventor: Nobuo Murofushi
  • Patent number: 10993295
    Abstract: A microwave mode stirrer apparatus having a stirring member with microwave-transmissive regions is disclosed, along with methods of performing microwave stirring using the microwave mode-stirring apparatus. The microwave-transmissive regions can be in the form of holes or can include microwave-transmissive material. The stirring member can have a variety of configurations, and the microwave-transmissive regions can have a variety of sizes and shapes. A microwave oven that uses the mode stirrer apparatus for drying green ceramic-forming bodies is also disclosed.
    Type: Grant
    Filed: September 28, 2016
    Date of Patent: April 27, 2021
    Assignee: Corning Incorporated
    Inventors: Paul Andreas Adrian, James Anthony Feldman, Jacob George, Steffen Georg Klingler, Nadezhda Pavlovna Paramonova, Erwin Josef Wersching
  • Patent number: 10684022
    Abstract: A multi-compartment oven provides separate humidity controlled zones using separately controlled steam generators and humidity resistant partitions between cavities. A removable humidity wall may allow resizing of the cavities while providing the necessary humidity sealing and may be augmented by venting control based on neighboring cavity usage.
    Type: Grant
    Filed: February 5, 2018
    Date of Patent: June 16, 2020
    Assignee: Alto-Shaam, Inc.
    Inventors: Philip R. McKee, Lee Thomas VanLanen, Jeff Maddox
  • Patent number: 10674568
    Abstract: Provided are a heating unit, an imaging unit that captures an image of an interior of a heating chamber, a setting unit that sets heating control details, and a storage that registers the captured image and the set heating control details in association with each other. Further provided area plural-article determination unit that determines whether a plurality of types of foods are present, a similarity determination unit that determines a degree of similarity of a plurality of images, a control detail identification unit that identifies heating control details corresponding to a food included in a captured image in accordance with a determination result obtained by the similarity determination unit, and a controller. The controller presents heating control details indicating each food on a display unit in accordance with a number of the foods. This configuration can provide a heating cooker capable of facilitating heating control setting.
    Type: Grant
    Filed: June 1, 2016
    Date of Patent: June 2, 2020
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Keiko Noda, Hirohisa Imai
  • Patent number: 10667337
    Abstract: A method of coherently controlling irradiation of an object in an enclosed cavity by at least two radio frequency (RF) feeds includes setting an amplitude, a phase and a frequency for each of the RF feeds; actuating all of the RF feeds with the respectively set amplitudes, phases and frequencies to irradiate the object; measuring a reflected power at each of the RF feeds; characterizing a complete scattering parameter matrix of the enclosed cavity while the object is being irradiated; and adjusting the power, the phase and the frequency for each of the RF feeds based on the complete scattering parameter matrix and values of the power, the phase and the frequency of the RF feeds before adjusting.
    Type: Grant
    Filed: December 23, 2013
    Date of Patent: May 26, 2020
    Assignee: Whirlpool Corporation
    Inventor: Davide Guatta
  • Patent number: 10426000
    Abstract: An electronic oven and associated methods for heating an item by controlling a distribution of microwave energy using a set of reflective elements are disclosed. The electronic oven can include a chamber, a microwave energy source coupled to an injection port in the chamber, a set of actuators connected to the set of reflective elements, and a controller that controls the set of actuators. The controller can reposition the set of reflective elements via the set of actuators, and stores instructions that independently cause a repositioning of each reflective element in the set of reflective elements using the set of actuators. The set of actuators and set of reflective elements are each sets of at least three units.
    Type: Grant
    Filed: June 22, 2018
    Date of Patent: September 24, 2019
    Assignee: The Markov Corporation
    Inventor: Nick C. Leindecker
  • Patent number: 10361472
    Abstract: A Cubesat uses both rail rods, walls, or both as an antenna. Either the rail rods and/or walls may form a rectangular waveguide, and may have one or more slots that allow energy to leak and radiate in a predefined direction in space.
    Type: Grant
    Filed: September 19, 2017
    Date of Patent: July 23, 2019
    Assignee: The United States of America as represented by the Administrator of NASA
    Inventor: Manohar Deshpande
  • Patent number: 10039157
    Abstract: In a processing reactor having a microwave plasma source, the microwave radiator is mounted on a rotary microwave waveguide coupling for continuous rotation, to form the reactor for processing a workpiece.
    Type: Grant
    Filed: June 2, 2014
    Date of Patent: July 31, 2018
    Assignee: Applied Materials, Inc.
    Inventors: Michael W. Stowell, Qiwei Liang
  • Patent number: 9781778
    Abstract: Aspects of the present invention relate to systems and methods for customizing microwave energy distribution within a chamber to accommodate various load characteristics. Additional aspects of the present invention relate to customized configurations of ports, deflectors, waveguides, conducting rods, and slots to shape and distribute energy.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: October 3, 2017
    Assignee: NIKE, Inc.
    Inventors: David Heineck, Zakaryae Fathi
  • Patent number: 9232570
    Abstract: A method of generating an RF field reflection, including positioning a grid wall in front of a conductive wall, launching RF energy at the grid wall and the conductive wall, including first and second linearly polarized orthogonal components, and reflecting one component from the grid wall set and allowing the other component to pass through the grid wall set with little reflection to reflect from the conductive wall.
    Type: Grant
    Filed: April 23, 2015
    Date of Patent: January 5, 2016
    Inventor: Robert L. Eisenhart
  • Patent number: 9224623
    Abstract: There is provided a microwave irradiation apparatus capable of independently controlling a temperature of a target object while irradiating microwave to the target object. The microwave irradiation apparatus 2 includes a processing chamber 4 configured to be vacuum-evacuated; a supporting table 6 configured to support the target object; a processing gas introduction unit 106 configured to introduce a processing gas into the processing chamber; a microwave introduction unit 72 configured to introduce the microwave into the processing chamber; a heating unit 16 configured to heat the target object; a gas cooling unit 104 configured to cool the target object by a cooling gas; a radiation thermometer 64 configured to measure a temperature of the target object; and a temperature control unit 70 configured to adjust the temperature of the target object by controlling the heating unit and the gas cooling unit based on the temperature measured by the radiation thermometer.
    Type: Grant
    Filed: February 17, 2012
    Date of Patent: December 29, 2015
    Assignee: TOKYO ELECTRON LIMITED
    Inventors: Shigeru Kasai, Ryoji Yamazaki, Mitsutoshi Ashida, Yuji Obata, Sumi Tanaka
  • Patent number: 9125958
    Abstract: A method and apparatus comprising microwave radiation pulses to reduce a microorganism population in an object.
    Type: Grant
    Filed: February 7, 2014
    Date of Patent: September 8, 2015
    Assignees: MICROZAP, INC.
    Inventors: Willis Don Stull, Jr., Andreas Alfred Neuber, David E. Sharbutt, Michel Todd Brashears, Mindy M. Brashears, Christine Alvarado, J. Chance Brooks
  • Patent number: 9063044
    Abstract: Provided herein are magnetic aggregating and washing devices. Further provided herein are methods using magnetic aggregation to aggregate and wash sample molecules in an in vitro assay.
    Type: Grant
    Filed: February 27, 2013
    Date of Patent: June 23, 2015
    Assignee: PLEXBIO CO. LTD.
    Inventors: Chien-Teng Kao, Yao-Kuang Chung, Pei-San Lee
  • Patent number: 8987644
    Abstract: A high-frequency heating apparatus of the present invention includes a heating chamber to which a heating plate for loading a subject to be heated thereon is detachably attached, a microwave generating unit, a waveguide for transmitting a microwave from the microwave generating unit, a rotation antenna for radiating the microwave into the heating chamber from the waveguide, a driving unit for turning/driving the rotation antenna, an operating portion capable of choosing the grill menu by which the subject to be heated put on the heating plate is heated and a hot-up menu by which the subject to be heated is heated without the heating plate, and a controlling unit for controlling the driving unit based on an output signal form the operating portion, wherein the controlling unit controls to vary a direction of a sharp portion of a radiation directivity of the rotation antenna in response to the output signal from the operating portion.
    Type: Grant
    Filed: June 18, 2007
    Date of Patent: March 24, 2015
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Yasuhisa Mori, Takeshi Takizaki, Koji Yoshino, Hiroshi Kawai
  • Patent number: 8922969
    Abstract: An apparatus for exciting a rotating field pattern in a cavity containing an object, the apparatus comprising a radiating element configured to excite an electromagnetic (EM) field pattern in the cavity, wherein the EM field pattern is excited with EM energy at a frequency in the radio-frequency (RF) range, a field rotating element configured to rotate the EM field pattern, wherein the field rotating element has an anisotropy, the anisotropy selected from magnetic anisotropy, electric anisotropy, and a combination of magnetic and electric anisotropies, and a controller configured to determine the EM field pattern according to value indicative of energy absorbable by the object and to control the anisotropy of the field rotating element in order to rotate the EM field pattern.
    Type: Grant
    Filed: December 2, 2010
    Date of Patent: December 30, 2014
    Assignee: Goji Limited
    Inventors: Michael Sigalov, Alexander Bilchinsky, Eran Ben Shmuel
  • Patent number: 8895907
    Abstract: A cooking apparatus which uses microwaves is provided such that the inside of the cooking apparatus may be formed more compactly than a conventional cooking apparatus. That is, the number of parts and the assembling process may be reduced by providing a convector (e.g., provided at a side of the cooking chamber) which circulates the inner air of the cooking chamber, and a microwave supplier provided at the convector to supply the microwaves into the cooking chamber through the convector.
    Type: Grant
    Filed: November 14, 2007
    Date of Patent: November 25, 2014
    Assignee: LG Electronics Inc.
    Inventor: Won Hui Lee
  • Patent number: 8525086
    Abstract: A microwave heating appliance, capable of achieving a locally concentrated heating in answer to the purpose while achieving a uniform heating in the overall heating chamber in a normal mode, is provided. The microwave heating appliance includes a microwave generating unit, a waveguide for transmitting a microwave from the microwave generating unit, a heating chamber for housing a heated subject heated by the microwave, a rotating antenna for radiating the microwave to the heating chamber, a driving unit for rotating and driving the rotating antenna, a temperature distribution detecting unit for detecting a temperature distribution in the heating chamber, and a controlling unit for controlling a direction of the rotating antenna based on a detected result of the temperature distribution detecting unit so that a sharp part of radiation directivity of the rotating antenna in a direction decided based on the detected result.
    Type: Grant
    Filed: June 15, 2007
    Date of Patent: September 3, 2013
    Assignee: Panasonic Corporation
    Inventors: Hirohisa Imai, Koji Yoshino, Masamitsu Kondou, Hiroshi Kawai, Miki Ueda
  • Patent number: 8481901
    Abstract: Methods for processing sample materials. Methods of the present disclosure can include providing a device including a process chamber array, the process chamber array including a loading chamber and a process chamber; providing sample material in the process chamber array; moving the sample material within the process chamber array by rotating the device; providing paramagnetic particles within the sample material located in the process chamber array; providing a magnet proximate the device; and rotating the device such that the paramagnetic particles within the sample material are subjected to the magnetic field of the magnet during rotation of the device.
    Type: Grant
    Filed: August 22, 2011
    Date of Patent: July 9, 2013
    Assignee: 3M Innovative Properties Company
    Inventors: William Bedingham, Raj Rajagopal, Barry W. Robole
  • Patent number: 8247752
    Abstract: A microwave cooking appliance includes first and second side mounted microwave systems, each including an associated antenna. Drive structure is provided to establish an oscillating operation for each of the antennae, wherein the angles through which the antennae rotate are configured to assure that the cooking appliance operates in favorable mode patterns. In accordance with the invention, the antenna preferably only oscillates through less than or equal to 180° and, most preferably, approximately 150°.
    Type: Grant
    Filed: October 9, 2008
    Date of Patent: August 21, 2012
    Assignee: ACP, Inc.
    Inventors: Robert McNamee, Thomas Miller
  • 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: 8178824
    Abstract: A cooking device that cooks food and drink by using heat generation of a heater, or a heat source such as microwaves. A cooking device is provided in which the radiation of microwaves can be varied depending on load, such as cooking objects, when microwaves are used as a heat source. The cooking device includes a stirring shaft provided to rotate within a cooking chamber, a stirring shaft power source to rotate the stirring shaft, and a stirring vane coupled to the stirring shaft through a hinge unit and configured to rotate by a centrifugal force according to a rotation speed of the stirring shaft. The radiation of microwaves can be varied depending on a load such as a cooking object, and a cooking device having an optimized performance can be provided.
    Type: Grant
    Filed: October 24, 2007
    Date of Patent: May 15, 2012
    Assignee: LG Electronics Inc.
    Inventors: Heung Shik Choi, Hyun Jung Kim
  • Patent number: 7928350
    Abstract: In a microwave heating apparatus, an electricity feeding port constituting a port of radiating a microwave is set to a ceiling wall of a heating chamber, a magnetron is arranged on a side of an outer side face of the heating chamber by directing an antenna for oscillating the microwave to a side of the heating chamber, and a wave guide for guiding the microwave oscillated from the magnetron to the electricity feeding port is formed in an L-like shape including a side wave guide extended upwardly from a surrounding of the antenna along the outer side face of the heating chamber and an upper wave guide extended from an upper end of the side wave guide to the electricity feeding port along an outer face of the ceiling wall.
    Type: Grant
    Filed: February 5, 2004
    Date of Patent: April 19, 2011
    Assignee: Panasonic Corporation
    Inventors: Koji Yoshino, Susumu Idomoto, Tomotaka Nobue
  • Publication number: 20090206071
    Abstract: A high-frequency heating apparatus of the present invention includes a heating chamber to which a heating plate for loading a subject to be heated thereon is detachably attached, a microwave generating unit, a waveguide for transmitting a microwave from the microwave generating unit, a rotation antenna for radiating the microwave into the heating chamber from the waveguide, a driving unit for turning/driving the rotation antenna, an operating portion capable of choosing the grill menu by which the subject to be heated put on the heating plate is heated and a hot-up menu by which the subject to be heated is heated without the heating plate, and a controlling unit for controlling the driving unit based on an output signal form the operating portion, wherein the controlling unit controls to vary a direction of a sharp portion of a radiation directivity of the rotation antenna in response to the output signal from the operating portion.
    Type: Application
    Filed: June 18, 2007
    Publication date: August 20, 2009
    Applicant: Panasonic Corporation
    Inventors: Yasuhisa Mori, Takeshi Takizaki, Koji Yoshino, Hiroshi Kawai
  • Patent number: 7388180
    Abstract: A microwave oven includes a cooking chamber; a magnetron for generating a microwave; a waveguide for guiding the microwave from the magnetron toward the cooking chamber; an antenna between the cooking chamber and the waveguide for propagating the microwave guided by the waveguide into the cooking chamber; and a driving unit for moving the antenna along a first direction and rotating the antenna.
    Type: Grant
    Filed: March 28, 2006
    Date of Patent: June 17, 2008
    Assignee: LG Electronics Inc.
    Inventors: Eung Su Kim, Kwang Yong Kim, Young Min Lee
  • Patent number: 7199341
    Abstract: A high-frequency heating apparatus comprises a heating chamber, a high-frequency generator, a waveguide, an antenna, a motor for rotating the antenna, and a stage (6) provided above and near the antenna to partition the heating chamber and made of dielectric. A rotary base on which an object to be heated is mounted is provided on the stage. A first magnet is provided to the antenna. A second magnet is provided on the rotary base at a place corresponding to the first magnet on the rotary base. By utilizing the magnetic coupling between the first and second magnets, the rotary base is rotated in synchronism with the rotation of the antenna. While maintaining the advantages of conventional antenna high-frequency heating apparatuses, the heating efficiency by grill heating or oven heating is enhanced, and minute heating uniformness is achieved.
    Type: Grant
    Filed: July 25, 2003
    Date of Patent: April 3, 2007
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Fuminori Kaneko, Hiroki Kitayama, Yoshikazu Yamamoto, Yuzi Andoh
  • Patent number: 7145119
    Abstract: A microwave cooker includes a body having a cooking chamber therein, a microwave source disposed at the body for generating a microwave, a wave guide for guiding the microwave generated from the microwave source into the cooking chamber, a rotation antenna installed in the body to be rotatable by a driving motor for emitting the microwave guided by the wave guide into the cooking chamber, and a movable stirrer coupled to the rotation antenna so as to be interworked with the rotation antenna.
    Type: Grant
    Filed: January 12, 2006
    Date of Patent: December 5, 2006
    Assignee: LG Electronics Inc.
    Inventors: Kwang-Yong Kim, Eung-Su Kim, Young-Min Lee
  • Patent number: 6909077
    Abstract: A microwave oven has an oven cavity in which a launch site for delivering microwave energy into the oven cavity is provided by a hole (6) in a wall (2) of the cavity and a match plate (10). In order to improve the distribution of microwave energy in the cavity, the oven also has a second wall (4) partially covered on its internal side by a second match plate (30) which acts as a second resonator. The second wall may include a hole which, with the second match plate, forms a second launch site for delivering microwave energy into the oven cavity, in which case the two holes are interconnected by a waveguide via which said microwave energy is supplied from at least one magnetron.
    Type: Grant
    Filed: June 15, 2001
    Date of Patent: June 21, 2005
    Assignee: Microwave Ovens Limited
    Inventors: Kenneth Ian Eke, Robert Schiffmann
  • Patent number: 6861632
    Abstract: A microwave oven includes a motor for a stirrer and a motor mounting unit. The motor is provided at an outer circumferential surface thereof with a first flange having a hole. The motor mounting unit is provided on an outer surface of a wave guide, and includes a seat, a mounting piece provided at an edge of the seat and having a hole, and a stopper. The stopper is upwardly projected from a first piece provided on the seat adjacent to the mounting piece, to delimit a mounted position of the motor. The motor mounting unit also includes a guide piece upwardly projected from a second piece provided at an edge of the seat. A slot is longitudinally formed along the guide piece. The motor has a second flange at a position opposite to the first flange to be fitted into and guided along the slot.
    Type: Grant
    Filed: July 30, 2003
    Date of Patent: March 1, 2005
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Se Hun Lee
  • Patent number: 6812443
    Abstract: A microwave oven has a heating chamber formed inside a body frame. A radiation antenna is provided below the heating chamber. The radiation antenna is structured in such a way that a member housed in an antenna drive box appropriately operates to change the distance between a bottom surface of the body frame and the radiation antenna. Microwaves generated by a magnetron are supplied through a waveguide and the radiation antenna into the heating chamber. When the level at which the radiation antenna is positioned is changed, the way to supply microwaves from the radiation antenna into the heating chamber is accordingly changed. Specifically, microwaves are locally supplied into the heating chamber or supplied uniformly into the whole of the heating chamber.
    Type: Grant
    Filed: December 23, 2003
    Date of Patent: November 2, 2004
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Masaru Noda, Eiji Fukunaga, Katsunao Takahashi, Katsuaki Hayami
  • Publication number: 20040134905
    Abstract: A microwave oven has a heating chamber formed inside a body frame. A radiation antenna is provided below the heating chamber. The radiation antenna is structured in such a way that a member housed in an antenna drive box appropriately operates to change the distance between a bottom surface of the body frame and the radiation antenna. Microwaves generated by a magnetron are supplied through a waveguide and the radiation antenna into the heating chamber. When the level at which the radiation antenna is positioned is changed, the way to supply microwaves from the radiation antenna into the heating chamber is accordingly changed. Specifically, microwaves are locally supplied into the heating chamber or supplied uniformly into the whole of the heating chamber.
    Type: Application
    Filed: December 23, 2003
    Publication date: July 15, 2004
    Applicant: Sanyo Electric Co., Ltd.
    Inventors: Masaru Noda, Eiji Fukunaga, Katsunao Takahashi, Katsuaki Hayami
  • Patent number: 6720541
    Abstract: A high-frequency heating apparatus capable of simultaneously heating different kinds of objects to appropriate temperatures includes: a power feed portion provided on a right side wall forming a heating chamber; a mounting table on which to mount objects to be heated; a rotating support of an improved structure; a drive motor; a temperature detection means having an area in front of the power feed portion as a detection area; and a control means; wherein high-frequency radiation variations are formed by the power feed portion and the rotating support and, based on a signal from the temperature detection means, the control means identifies positions of the objects on the mounting table and controls the drive motor to move the lower-temperature object to where a high-frequency radiation is strong to eliminate insufficient heating of the object and to simultaneously heat a plurality of objects to appropriate temperatures.
    Type: Grant
    Filed: December 13, 2001
    Date of Patent: April 13, 2004
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Kenji Watanabe, Kazuo Fujishita, Tomotaka Nobue, Takesi Takizaki, Isao Mizuta, Akemi Fukumoto
  • Patent number: 6698657
    Abstract: An interactive interpreter of synchronous or asynchronous selective data from an annular indicia. The annular indicia has data contained thereon that is formatted into bit-cells. The bit-cells are angularly positioned about the circumference of the annular indicia. The annular indicia may, if desired, be rotated in the clockwise or counterclockwise direction enabling the interpretation of data encoded as bit-cells. A controller with memory, the memory having stored therein a software program that provides interpretation of the data contained on the annular indicia and the directional rotation of the data. The rotation of the annular indicia may, if desired, be started and stopped at any convenient time without loss of data or reinterpreting of data. The data contained on the annular indicia may, if desired, be selectively disposed about the circumference of the annual indicia.
    Type: Grant
    Filed: February 26, 2001
    Date of Patent: March 2, 2004
    Inventors: Victor A. Murphy, John T. Dunlap, Steven J. Drucker
  • Patent number: 6689994
    Abstract: Disclosed is an antenna radiation heater (2) to heat material using molecular resonance. A plurality of surface antenna elements (3), each having a carrier surface material (11) and a radiation coating (10) applied thereon are connected by two spaced apart electrical conductors (14, 15) in parallel, with electrical contacts as antenna limiters and with which high-frequency electromagnetic radiation can be emitted. The antenna (2) includes a harmonic generator, coupled to electrical conductors (14, 15) of element (3) for excitation of the coating (10) for emitting an oscillation spectrum within the range of natural molecular frequencies of the material being heated. The radiation coating (10) is unilaterally applied to the carrier material (11) and forms an element front facing the material being heated.
    Type: Grant
    Filed: January 22, 2003
    Date of Patent: February 10, 2004
    Assignee: Moletherm Holding AG
    Inventor: Helmut Reichelt
  • Patent number: 6614011
    Abstract: An opening is formed in a right side of a heating chamber. The opening is covered by a protection cover. A waveguide is connected to the opening. A magnetron is connected to the waveguide. The magnetron has a magnetron antenna. An emission antenna is arranged around the magnetron antenna. A rotating plate is mounted to the protection cover. A plurality of diffusion antennas are mounted to the rotating plate. The diffusion antennas are arranged from the waveguide to the heating chamber.
    Type: Grant
    Filed: December 1, 2000
    Date of Patent: September 2, 2003
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Yoshiharu Omori, Ryota Isshiki, Kuniyasu Kubo
  • Patent number: 6590192
    Abstract: A microwave oven determines an appropriate time to stop heating even if multiple food items are placed in the heating chamber. After any position on the bottom surface of the microwave oven reaches 75 deg C., a search is made for any other position having a temperature of at least 70 deg C. If such a position is detected, heating is concentrated on that position until it reaches 75 deg C. When all food-containing positions in the microwave oven have reached a temperature of at least 75 deg C., the heating operation performed by the magnetron is stopped.
    Type: Grant
    Filed: February 26, 2002
    Date of Patent: July 8, 2003
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Kazuo Taino, Hiroyasu Kitagawa, Kazuko Tanaka, Yoshiko Yamane
  • Patent number: 6576879
    Abstract: A microwave oven having a wave distributing device. A motor-operated rotor is installed inside a cooking cavity to distribute high-frequency electromagnetic waves (“microwaves”) generated by the oscillation of a magnetron. The wave distributing device includes a rotation trace limiter which limits a rotation trace of the rotor within a predetermined range. The rotation trace limiter includes stoppers which limit the rotation of the rotor, or a cam mechanism unit which changes a movement of a motor shaft connecting the rotor to the motor. Accordingly, an optimum energy efficiency is achieved, thereby saving energy required during an operation of the microwave oven under a standard load. In addition, the amount of the microwaves reflected back to the magnetron during an operation under a no-load or a light load is reduced. Therefore, life expectancy of the magnetron and the overall operational reliability of the microwave oven are improved.
    Type: Grant
    Filed: July 8, 2002
    Date of Patent: June 10, 2003
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Jung-Eui Hoh
  • Publication number: 20030098302
    Abstract: A microwave oven having a wave distributing device. A motor-operated rotor is installed inside a cooking cavity to distribute high-frequency electromagnetic waves (“microwaves”) generated by the oscillation of a magnetron. The wave distributing device includes a rotation trace limiter which limits a rotation trace of the rotor within a predetermined range. The rotation trace limiter includes stoppers which limit the rotation of the rotor, or a cam mechanism unit which changes a movement of a motor shaft connecting the rotor to the motor. Accordingly, an optimum energy efficiency is achieved, thereby saving energy required during an operation of the microwave oven under a standard load. In addition, the amount of the microwaves reflected back to the magnetron during an operation under a no-load or a light load is reduced. Therefore, life expectancy of the magnetron and the overall operational reliability of the microwave oven are improved.
    Type: Application
    Filed: July 8, 2002
    Publication date: May 29, 2003
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Jung-Eui Hoh
  • Patent number: 6563097
    Abstract: A microwave oven heats all food in an appropriate manner even if food items are simultaneously placed at multiple locations in a heating chamber. An auxiliary antenna is periodically stopped at an orientation corresponding to a position where a lowest temperature was detected at the start of the heating operation. Between stopped periods, the auxiliary antenna is rotated for a period to apply heat evenly to all food in the oven. If multiple low-temperature points are detected, the central position of these multiple low-temperature points is used for applying concentrated heat.
    Type: Grant
    Filed: February 26, 2002
    Date of Patent: May 13, 2003
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Kazuo Taino, Hiroyasu Kitagawa, Kazuko Tanaka, Yoshiko Yamane
  • Patent number: 6444966
    Abstract: A rotational antenna has a circular portion having a disc-like shape and a cylindrical portion connected to the central portion of the circular portion, and rotates in a direction perpendicular to the sheet with the cylindrical portion serving as an axis. By driving a motor, the motive power is transmitted via a motor shaft and the cylindrical portion to the rotational antenna, thereby rotating the rotational antenna. A bearing serves the function of a spacer between the cylindrical portion and a waveguide. A spacer is attached on an upper surface of the circular portion. The dimension in the direction of height of a spacer is greater than the distance in the direction of height between a bottom plate and a portion in the vicinity of the central portion of the rotational antenna. Thus, the rotational antenna deflects from its central portion toward its outer edge portion, and is fixed with respect to the up-down direction by spacers and the bearing.
    Type: Grant
    Filed: February 26, 2001
    Date of Patent: September 3, 2002
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Eiji Mukumoto, Katsunao Takahashi, Yoshitsugu Kawamura
  • Patent number: 6425190
    Abstract: A method and device for moisture profiling of a fibrous material web to be dried in machines for manufacturing and/or refining this web that includes subjecting the fibrous material web to electromagnetic waves in the form of microwaves and/or high-frequency waves.
    Type: Grant
    Filed: September 10, 1999
    Date of Patent: July 30, 2002
    Assignee: Voith Sulzer Papiertechnik Patent GmbH
    Inventors: Robert Wolf, Markus Oechsle, Wolfgang Mayer, Roland Mayer, Frank Wegehaupt
  • Publication number: 20010019054
    Abstract: The microwave oven includes an infrared sensor for detecting the temperature of a food within a heating chamber. The infrared sensor has a field of view within the heating chamber. The infrared sensor is capable of moving the field of view. The food is often placed in the central region of the heating chamber. Therefore, when cooking is started, the field of view of the infrared sensor first scans the central region of the heating chamber.
    Type: Application
    Filed: February 26, 2001
    Publication date: September 6, 2001
    Applicant: Sanyo Electric Co., Ltd.
    Inventors: Kazuhiko Kawamura, Hiroyuki Uehashi, Masaru Noda, Eiji Fukunaga, Kazuo Taino
  • Publication number: 20010017298
    Abstract: A rotational antenna has a circular portion having a disc-like shape and a cylindrical portion connected to the central portion of the circular portion, and rotates in a direction perpendicular to the sheet with the cylindrical portion serving as an axis. By driving a motor, the motive power is transmitted via a motor shaft and the cylindrical portion to the rotational antenna, thereby rotating the rotational antenna. A bearing serves the function of a spacer between the cylindrical portion and a waveguide. A spacer is attached on an upper surface of the circular portion. The dimension in the direction of height of a spacer is greater than the distance in the direction of height between a bottom plate and a portion in the vicinity of the central portion of the rotational antenna. Thus, the rotational antenna deflects from its central portion toward its outer edge portion, and is fixed with respect to the up-down direction by spacers and the bearing.
    Type: Application
    Filed: February 26, 2001
    Publication date: August 30, 2001
    Applicant: Sanyo Electric Co., Ltd.
    Inventors: Eiji Mukumoto, Katsunao Takahashi, Yoshitsugu Kawamura
  • Patent number: 6274859
    Abstract: A high frequency heating apparatus for heating an object to be heated is provided with an electromagnetic wave emission device for emitting electromagnetic waves, a local heating device capable of heating an optional portion of the object by the electromagnetic waves emitted from the emission device, and a control device for controlling the local heating device. The high frequency heating apparatus is further provided with a stage on which the object is placed, a protecting device for protecting the local heating device, a setting device and a detection device, so that the local heating device, the electromagnetic wave emission device or the stage is controlled in accordance with the setting device or detection device.
    Type: Grant
    Filed: August 13, 1999
    Date of Patent: August 14, 2001
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Koji Yoshino, Takashi Kashimoto, Makoto Shibuya, Hirohisa Imai, Akira Ahagon
  • Publication number: 20010002670
    Abstract: An opening is formed in a right side of a heating chamber. The opening is covered by a protection cover. A waveguide is connected to the opening. A magnetron is connected to the waveguide. The magnetron has a magnetron antenna. An emission antenna is arranged around the magnetron antenna. A rotating plate is mounted to the protection cover. A plurality of diffusion antennas are mounted to the rotating plate. The diffusion antennas are arranged from the waveguide to the heating chamber.
    Type: Application
    Filed: December 1, 2000
    Publication date: June 7, 2001
    Inventors: Yoshiharu Omori, Ryota Isshiki, Kuniyasu Kubo
  • Patent number: 6239416
    Abstract: An apparatus and method for heating a microwave oven using a deterministic chaotic signal. The microwave oven includes a heating compartment, a magnetron for generating microwaves, a waveguide for directing the microwaves into the heating compartment and a chaotic signal generator for driving the magnetron. The characteristics of the chaotic signal are adjusted to tend to vary the output energy of the magnetron and increase the uniformity of the microwaves in the heating compartment.
    Type: Grant
    Filed: March 17, 1999
    Date of Patent: May 29, 2001
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Hiroyoshi Nomura, Noboru Wakami, Kazuyuki Aihara
  • Patent number: 6211503
    Abstract: With a device for heating parts 8 made of a microwave absorbing plastic and having a microwave generator 1 that generates microwaves of a certain wavelength, an antenna 4 to which the microwaves are conducted, having at least one free end 5 and a device 6 which surrounds the antenna 4, it is proposed that the device for shielding 6 be designed with a tubular shape, so that the device 6 has an inside diameter smaller than half the wavelength, projects beyond the free end 5 of the antenna and has an opening 7 in its end face. With this device it is possible to achieve a spatially limited and nevertheless homogeneous heating of parts 8. Furthermore a method of heating or welding, shaping or crosslinking parts made of a microwave absorbing plastic using this device is also proposed.
    Type: Grant
    Filed: September 20, 1999
    Date of Patent: April 3, 2001
    Assignees: Fraunhofer Gesellschaft zur Forderung der angeandten Forschung e.V, Mugge Electronic
    Inventors: Rudolf Emmerich, Horst Mugge, Armin Dommer, Michael Jauss
  • Patent number: 6118112
    Abstract: A microwave apparatus includes a coaxial feed connected to a microwave waveguide and extended into a rotating antenna applicator in a microwave cavity, wherein a gap between the ceiling of the microwave cavity and the top of the rotating antenna applicator as well as between the coaxial feed and the rotating antenna applicator is present to facilitate the rotation of the antenna applicator. The presence of these gaps permit radial leakage, uncontrolled excitation of modes and occasional arcing. An annular knob is provided proximate the coaxial feed and attached to the top of the rotating antenna applicator to suppress radial leakage, uncontrolled excitations and arcing in the microwave cavity.
    Type: Grant
    Filed: March 4, 1999
    Date of Patent: September 12, 2000
    Assignee: Amana Company, L.P.
    Inventors: John M. Osepchuk, Rex E. Fritts, Glen R. Breuer, Thomas L. Miller
  • Patent number: 6097015
    Abstract: A novel method and apparatus for sterilizing, disinfecting or otherwise heating materials, objects, liquids and the like under pressure is disclosed. The invention utilizes the generation and transmission of single-mode, non-interfering coaxial microwaves from multiple sources into the material to be treated. As a result, a more efficient transfer of microwave energy into the material to be treated is obtained.
    Type: Grant
    Filed: October 14, 1998
    Date of Patent: August 1, 2000
    Assignee: Healthbridge, Inc.
    Inventors: John V. McCullough, Charles L. Ice, Jeremy W. Leonard, Stephen Sherard
  • Patent number: 5986249
    Abstract: A high frequency heating apparatus for heating an object to be heated is provided with an electromagnetic wave emission means for emitting electromagnetic waves, a local heating means capable of heating an optional portion of the object by the electromagnetic waves emitted from the emission means, and a control means for controlling the local heating means. The high frequency heating apparatus is further provided with a stage on which the object is placed, a protecting means for protecting the local heating means, a setting means and a detection means, so that the local heating means, the electromagnetic wave emission means or the stage is controlled in accordance with the setting means or the detection means.
    Type: Grant
    Filed: April 18, 1997
    Date of Patent: November 16, 1999
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Koji Yoshino, Takashi Kashimoto, Makoto Shibuya, Akira Ahagon