Enclosed Cavity Structure Patents (Class 219/756)
  • Patent number: 6662711
    Abstract: A protective screen (5) is provided near a peephole part (7) of a door main body (2) and has its heat resisting temperature higher than the heat resisting temperature of a window frame. Even when a material to be cooked ignites, flame hardly goes outside from the peephole part (7). A temperature switch (3) does not need to be provided in a heating chamber (1). Accordingly, the cooking apparatus can be easily designed.
    Type: Grant
    Filed: January 30, 2003
    Date of Patent: December 16, 2003
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventor: Kazunori Maeda
  • Patent number: 6660984
    Abstract: A wall-mounted type microwave oven having an improved structure to hold a power cord on a top panel of the wall-mounted type microwave oven thereby affording easy assembly and reduction in manufacturing costs is provided. The power cord extends out of the top panel through an opening thereof. The power cord is fitted into a cut portion formed in the top panel to be connected to the opening, and a cover having a retaining portion is attached to the top panel to cover the opening. Therefore, the power cord is interposed between the retaining portion of the cover and the top cover, and is thus firmly held on the top panel.
    Type: Grant
    Filed: December 18, 2002
    Date of Patent: December 9, 2003
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sang-Jin Jeong, Sang-Seok Seo
  • Publication number: 20030224082
    Abstract: A mold for uniform heating and molding of work material to form a workpiece of variable thickness using a microwave oven includes upper and lower mold members and a sidewall mold member. Metal inserts, with irregular inner surfaces defining a mold cavity, are positioned adjacent opposed planar surfaces of the upper and lower mold members. The mold members are formed from material selected to have an effective thermosensitivity equal to that of the work material. The effective thermosensitivity of work material is its dissipation factor divided by the product of its dielectric constant, density and specific heat multiplied by the fraction of the mass of work material divided by the total mass of work material and metal inserts.
    Type: Application
    Filed: May 9, 2003
    Publication date: December 4, 2003
    Inventor: Razmik L. Akopyan
  • Patent number: 6653610
    Abstract: A microwave oven is provided which allows electrical components to be cooled separately from the cooking chamber. The microwave oven includes a front plate and a back plate which is spaced a distance from, and opposite to the front plate. The microwave oven also includes a base plate between the front plate and the back plate, and a partition wall for isolating a cooking chamber from an electric outfit room. A wave guide is attached to a rear part of the partition wall and a magnetron is mounted on an upper surface of the wave guide. An electric outfit plate is fitted at approximately the same height as the upper surface of the cooking chamber. Electrical components such as a transformer and a capacitor can be mounted on the electric outfit plate. With this arrangement, the electric components are all mounted above and to the side of the cooking chamber, which allows them to be easily cooled.
    Type: Grant
    Filed: October 26, 2001
    Date of Patent: November 25, 2003
    Assignee: LG Electronics Inc.
    Inventor: Seong Soon Ahn
  • Patent number: 6649892
    Abstract: In a microwave oven system comprising at least one magnetron of a given operating frequency and a mains unit for the at least one magnetron, the at least one magnetron of a given operating frequency is replaceable by a magnetron of another operating frequency. The magnetrons of the different operating frequencies have at least approximately the same mechanical dimensions so that they can be easily replaced quickly. The mains unit can be used for the different magnetrons in unchanged form or in a form involving minor modifications, without any change in the electrical parameters or with a slight change therein, thereby affording interchangeability of the various magnetrons.
    Type: Grant
    Filed: December 19, 2002
    Date of Patent: November 18, 2003
    Assignee: Linn High Term GmbH
    Inventors: Horst Linn, Juergen Suhm
  • Publication number: 20030209544
    Abstract: A microwave oven having two contact units and a method of manufacturing such a microwave oven. The contact units transceive electrical current and signals between a variety of electrical and electronic devices installed in a machine room of the microwave oven. The contact units include a first contact unit connected to a part of the devices, and a second contact unit connected to another part of the devices. First and second contact terminals are respectively provided at the first and second contact units to connect the two contact units to each other. During the assembly of the microwave oven, the contact units are separately connected to the associated devices prior to the installation of the devices in the machine room. After the installation of the devices in the machine room, the first and second contact terminals of the two contact units are electrically connected to each other to connect the two contact units. Accordingly, it is easy and convenient to install the contact units in the machine room.
    Type: Application
    Filed: September 25, 2002
    Publication date: November 13, 2003
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Tea-Hee Jeung
  • Publication number: 20030209543
    Abstract: A microwave oven having an improved configuration of its mounting bracket to couple a magnetron to a waveguide, to reduce the number of operations to couple the magnetron to a waveguide, and which is stable in a fixed state of the mounting bracket to obtain a more efficient cooling effect for the magnetron. The microwave oven includes an oven body, an inner case disposed in the oven body, which defines a cooking chamber therein and an electric component chamber at its outside, a mounting bracket attached to the electric component chamber, which is provided with one or more pockets and is provided near the pocket with a reinforcing section to prevent bending deformation of the mounting bracket, and a magnetron mounted on the mounting bracket, which has one or more coupling portions to be inserted into the pocket of the mounting bracket.
    Type: Application
    Filed: August 20, 2002
    Publication date: November 13, 2003
    Applicant: Samsung Electronics Co., Ltd.
    Inventor: Jong-Yueol Park
  • Patent number: 6624399
    Abstract: A space saving cooking appliance having a shape that conserves counter space and/or room space with either a prism shaped outer case that has an apex in the rear to match a corner, or a flat back that can be pushed up against a wall. The front of the appliance can be curved forming a part of an ellipse or circle. The cooking space inside the appliance can be cylindrical. On the front of the arcuate surface there can be a door that completes the arcuate surface when it closes, and on its inner side is shaped so that it completes the cylindrical cooking space when it is closed. Auxiliary side appliances can be located left and right of the main cooking area. These auxiliary appliances can be stacked and can be of many different types including a toaster, rotisserie, grill, broiler, BBQ, egg cooker, coffee maker.
    Type: Grant
    Filed: November 14, 2001
    Date of Patent: September 23, 2003
    Inventor: Zenon Rypan
  • Patent number: 6621058
    Abstract: A wall-mounted microwave oven outputs an air curtain which guides gas and fumes generated from an oven located therebelow to the outside. The wall-mounted microwave oven includes an oven body which is mountable on a wall, a cooking chamber and an electric component compartment which are isolated from each other by a partition plate, an exhaust flow path arranged in the oven body to exhaust the gas and fumes generated from the oven, an exhaust fan which exhausts the gas and fumes introduced into the exhaust flow path to the outside, an air-discharging outlet which is provided at a front and lower portion of the wall-mounted microwave oven and forms the air curtain, and a blower fan which is disposed in the oven body and provides air to the air-discharging outlet. The air curtain guides the gas and fumes toward the exhaust flow path of the wall-mounted microwave oven so as to effectively exhaust the gas and fumes to the outside.
    Type: Grant
    Filed: July 31, 2002
    Date of Patent: September 16, 2003
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Gong-Soo Kim
  • Publication number: 20030168448
    Abstract: A portable microwave oven, formed by a hollow prismatic body (10) defining an internal cooking chamber (20) formed between a first polygonal base (30) and a second polygonal base (40) of said body (10) and a peripheral lateral wall (50), the first polygonal base (30) externally defining a first seating surface (31) of the oven, the second polygonal base (40) being at least partially defined by a tiltable door (60) that gives access to the cooking chamber (20), the peripheral lateral wall (50) defining, in part of its extension, a second seating surface (52) of the oven, the cooking chamber (20) being provided with a first product supporting surface (21) and a second product supporting surface (22) in a position usually displaced in 90 degrees in relation to the operative position when using the first product supporting surface (21).
    Type: Application
    Filed: November 1, 2002
    Publication date: September 11, 2003
    Inventors: Ari Koji Shimizu, William Harley Garcia, Claudia Alquezar Facca, Rogerio Feffeira Negrao
  • Patent number: 6617558
    Abstract: A furnace is provided for microwave sintering of nuclear fuel. A stationary wave is generated in an antenna cavity and used to extract microwaves through slots into a resonance chamber containing the nuclear fuel. A position of the slots is adjusted in such a way that a predetermined temperature profile is produced in the nuclear fuel.
    Type: Grant
    Filed: June 26, 2002
    Date of Patent: September 9, 2003
    Assignee: Framatome ANP GmbH
    Inventors: Wolfgang Dörr, Thorsten Gerdes, Gerhard Gradel, Bruno Schmitt, Monika Willert-Porada
  • Patent number: 6610970
    Abstract: A microwave oven incorporating a toaster includes a toaster door provided on a toaster panel for opening and closing at least one toaster entrance and a tray assembly. The tray assembly includes a tray support inside the toaster and at least one tray on the tray support for holding food items while they are heated. The tray includes at least one elevating bracket for maintaining a predetermined distance between the tray and the tray support. The microwave oven incorporating a toaster further includes a heater generating heat for toasting the food item and at least one connecting link between the toaster door and tray assembly for exerting a force on the tray assembly to move when the toaster door is opened and closed. In the microwave oven incorporating a toaster, each food item is positioned against a heater included therein so as to maximize the toasting performance of the toaster.
    Type: Grant
    Filed: November 8, 2002
    Date of Patent: August 26, 2003
    Assignee: LG Electronics Inc.
    Inventor: Yoon Gun Back
  • Publication number: 20030155352
    Abstract: A part of a body of a high-voltage condenser (28) is arranged between a lower plate (23) constituting a heating chamber (21), and a bottom plate (27) thereby to reduce attachment dimension of the high-voltage condenser (28), whereby size-reduction and space-reduction of the high-frequency heating apparatus becomes possible, and an insulation distance between the high-voltage condenser (28) and metal-made parts constituting the high-frequency heating apparatus can be secured easily, so that the number of the parts can be reduced. Therefore, it is possible to provide the high-frequency heating apparatus which is advantageous also in resources-reduction, assembly efficiency, and price.
    Type: Application
    Filed: January 30, 2003
    Publication date: August 21, 2003
    Inventor: Kazuhiro Kawai
  • Patent number: 6600288
    Abstract: A cooking device having a cooking chamber, a motor unit for driving a fan for purposes of circulating cooking chamber atmospheres in the cooking chamber, a control and regulator unit cooperating with the motor unit and a voltage phase and frequency converter which has power supply connections for the input of a.c. voltage signals L1 and at least one connection to the control and regulator unit and an output connection for transmitting three-phase voltage signals U, V and W with adjustable amplitude, frequency and phase to the motor unit.
    Type: Grant
    Filed: July 5, 2001
    Date of Patent: July 29, 2003
    Assignee: Rational Aktiengesellschaft
    Inventors: Wilfried Durth, Erwin Schuller
  • Publication number: 20030136779
    Abstract: The apparatus for uniformly dispersing the microwave comprises a body including a plurality of reflective portions which are made of materials capable of reflecting the microwave and have the horizontal top surfaces and vertical side surfaces. The width of the plurality of reflective portions is set as 1/n times as large as a wavelength &lgr;g of the microwave. The depth of each of the plurality of reflective portions may be set as a value obtained by multiplying the remainder, which is obtained by dividing the power of a natural number for the least primitive root of a prime number by the prime number, by the width of the reflective portion under a condition that a datum plane is defined by a height from the bottom surface corresponding to a value obtained by multiplying the width of the reflective portion by (prime number −1).
    Type: Application
    Filed: May 14, 2002
    Publication date: July 24, 2003
    Inventor: Young Hee Lee
  • Publication number: 20030132226
    Abstract: A microwave oven incorporating toaster includes a tray provided on a tray support. The tray support moves forward and backward in inside the toaster. The tray support includes a bushing for moving within moving slots provided at both sidewalls of a toaster case. A connecting lever connects the bushing to a toaster door and translates a motion generated by operation of the toaster door when it opens and closes into a moving motion exhibited by the tray. A food item (e.g., a slice of bread, bagel, etc.) arranged on the tray may be inserted into, or removed from, the inside of the toaster by operating the toaster door.
    Type: Application
    Filed: November 14, 2002
    Publication date: July 17, 2003
    Inventor: Yoon Gun Back
  • Publication number: 20030121910
    Abstract: A mail sanitizer and method utilizing microwaves capable of treating biologically and/or chemically contaminated mail items, packages and the like. The mail sanitizer includes a cavity positioned inside a plurality of walls and a door. An activation display mounted on one of the walls allows a user to activate the mail sanitizer, either by manual operation, remote control or timer, allowing microwaves to enter and treat the mail items.
    Type: Application
    Filed: January 3, 2002
    Publication date: July 3, 2003
    Inventor: Louis Rey
  • Publication number: 20030121913
    Abstract: The present invention relates to a microwave heating device, and in particular, a microwave heating device with a microwave heating element mounted on the surface of a heating dish on which food is placed inside a heating chamber.
    Type: Application
    Filed: December 27, 2002
    Publication date: July 3, 2003
    Applicant: Sanyo Electric Co., Ltd.
    Inventors: Katsuaki Hayami, Kuniyasu Kubo, Yukihiro Kitada, Takashi Fukuda, Yoshitsugu Kawamura, Eiji Fukunaga, Yoshihito Fukuda, Yuichi Otsuki
  • Patent number: 6586716
    Abstract: A wall-mounted type microwave oven which carries out a sweeping operation of kitchen areas positioned therebelow, as well as cooking and exhaustion operations. The microwave oven includes an oven body for mounting in a kitchen area, having a cooking chamber and an electrical component compartment which are isolated from each other, an exhaust flow path which communicates between an intake port provided at a bottom panel of the oven body and an exhaust outlet provided at a top panel of the oven body to exhaust air existing under the oven body to the outside, an exhaust fan assembly provided at the exhaust outlet, a sweeping inlet provided at the bottom panel of the oven body, a sweeping flow path which is disposed in the oven body and communicates with an inlet of the exhaust fan assembly and the sweeping inlet, a filter assembly disposed in the sweeping flow path, and a sweeping hose detachably coupled to the sweeping inlet.
    Type: Grant
    Filed: November 7, 2002
    Date of Patent: July 1, 2003
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Chea-How Lee
  • Publication number: 20030106893
    Abstract: A wall-mounted microwave oven includes a body partitioned into a cooking cavity and a machine room, a magnetron detachably installed in the machine room, and a control panel detachably mounted on the body in front of the machine room. The magnetron is mounted on a bottom surface of the machine room so as to allow an operator to repair or replace the magnetron without removing the wall-mounted microwave oven from a wall.
    Type: Application
    Filed: March 26, 2002
    Publication date: June 12, 2003
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Gun-Young Roh
  • Patent number: 6572830
    Abstract: A multilayered microfluidic device having a substantially monolithic structure is formed by sintering together a plurality of green-sheet layers. The substantially monolithic structure has an inlet port for receiving fluid, an outlet port for releasing fluid, and an interconnection between the inlet port and the outlet port. The substantially monolithic structure may also include a variety of components to enable useful interaction with the fluid, such as electrically conductive pathways, heaters, fluid sensors, fluid motion transducers, and optically transmissive portions. The components are preferably fabricated using thick-film or green-sheet technology and are preferably co-fired with and sintered to the green-sheet layers to become integral with the substantially monolithic structure.
    Type: Grant
    Filed: June 21, 1999
    Date of Patent: June 3, 2003
    Assignee: Motorola, Inc.
    Inventors: Jeremy W. Burdon, Rong-Fong Huang, David Wilcox, Nicholas J. Naclerio, Cynthia Ann Gorsuch Briscoe, Piotr Grodzinski, Huinan Yu, Robert Marrero, Sean Ross Gallagher, Yuk-Tong Chan, Barbara McNeil Foley, Xunhu Dai
  • Publication number: 20030089708
    Abstract: In one aspect, a microwave oven comprising an outer case, a door secured to the outer case, and a turntable supported in the case but extending beyond a case front face is described. In an example embodiment, the outer case houses a portion of a cooking cavity, and the cooking cavity is partially defined by a bottom inner wall, a top inner wall, and side inner walls of the case. The door is secured to the case, and the door comprises an inner wall comprising a recessed portion. The oven further includes an RF energy source for supplying RF energy to the cooking cavity, a controller coupled to the RF energy source for controlling supply of RF energy to the cooking cavity, and a user interface coupled to the controller.
    Type: Application
    Filed: November 14, 2001
    Publication date: May 15, 2003
    Inventors: Jeffrey R. Hudson, Charles A. Ulmer
  • Publication number: 20030089709
    Abstract: A microwave oven comprising a usually prismatic cabinet (10) having a bottom wall (11) and a door (20), and defining, internally, a cooking chamber, in which is provided a turntable (40), the upper edge (13) of the cabinet (10) surrounding an opening (14), against which is seated and releasably locked the door (20), said upper edge (13) or said door (20) carrying a control panel (50) for the operation of the microwave oven. The door (20) may be operatively coupled to the turntable (40) so as to vertically displace the latter upon movement of said door (20).
    Type: Application
    Filed: October 22, 2002
    Publication date: May 15, 2003
    Inventors: Sergio Corumba Dos Santos, Antonio Jorge Pietruza, Guilherme Nehring
  • Publication number: 20030089705
    Abstract: A guided heating apparatus and a method for using the same is provided. The apparatus includes a guiding enclosure, a supporting piece, and an absorbing piece. The guiding enclosure guides and keeps energy from an energy source within the guiding enclosure. The guiding enclosure is made of a material reflective of the energy. The energy source is either one of a microwave source and an infrared source. The supporting piece is detachably coupled with the guiding enclosure and is made of a material transparent to the energy. The absorbing piece is coupled to and supported by the supporting piece within the guiding enclosure. The absorbing piece is made of at least one material that absorbs the energy and transfers the energy to an object to be heated. The absorbing piece has a predetermined composition that controls an energy absorption rate of the absorbing piece.
    Type: Application
    Filed: November 14, 2001
    Publication date: May 15, 2003
    Inventors: Song-Hua Shi, Bob Sankman
  • 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
  • Publication number: 20030042252
    Abstract: Disclosed is a microwave oven having a toasting function and compact dimensions. The microwave oven comprises a cavity and a component chamber; a toaster case at a front of the component chamber and having an opening at a front thereof; a toaster door at a front of the toaster case for opening/closing the opening; a tray assembly installed in an interior of the toaster case for supporting at least one slice of bread; and a heater assembly installed in an interior of the toaster case, for heating the bread.
    Type: Application
    Filed: August 12, 2002
    Publication date: March 6, 2003
    Inventors: Yoon Gun Back, Sang Jin Oh
  • Patent number: 6528774
    Abstract: The object of this invention is to provide a built-in microwave oven, installed in kitchen furniture as an integral part of the furniture. In the microwave oven of this invention, a suction grille (10) and an exhaust grille (20) are provided on the front wall of the external casing, with a side air passage connecting the suction grille (10) to the exhaust grille (20). An exhaust fan (22) is provided in the side air passage at a front portion around the suction grille, while a partition wall (60) is longitudinally installed at a position in back of the exhaust fan (22). A PCB thereon, is installed within the rear passage defined in back of the partition wall (60). In an operation of the microwave e oven, the air discharged from the side air passage by the suction force of the exhaust fan (22) partially flows around the PCB support bracket (70) to cool the PCB prior to flowing through the side air passage to reach the exhaust grille (20).
    Type: Grant
    Filed: June 24, 2002
    Date of Patent: March 4, 2003
    Assignee: LG Electronics Inc.
    Inventor: Sung-Geon Lee
  • Patent number: 6528773
    Abstract: The present invention relates to a microwave oven including a cavity having a certain area for cooking comprising a flow path formed between a main body and the cavity so as to be connected from a side of the cavity to the upper surface of the cavity, a heater installed on the side of the flow path corresponding to the outer upper surface of the cavity for emitting heat, a discharge hole installed on the upper surface of the cavity corresponding to the lower portion of the heater for discharging the heat of the heater into the cavity, an inlet installed on the lower portion of the side wall of the cavity for making the air inside of the cavity flow in the flow channel, and a circulating fan installed on a certain portion of the flow channel for circulating the air inside of the cavity flown through the inlet to the heater.
    Type: Grant
    Filed: December 28, 2000
    Date of Patent: March 4, 2003
    Assignee: LG Electronics Inc.
    Inventors: Yang Kyeong Kim, Jong Gwan Ryu, Sung Jin Han, Wan Soo Kim
  • Publication number: 20030034345
    Abstract: A waveguide system for passing microwave energy while blocking foreign particles from a moving gas passing through the system is provided. The system includes first and second waveguide sections and a low loss microwave window disposed between the waveguide sections to allow microwave energy to pass from the first waveguide section through the window to the second waveguide section. The system also includes a gas bypass filtration system having a first port in communication with the first waveguide section, a filter element in communication with the first port, and a second port in communication with the filter element and with the second waveguide section. The system of the invention having these features blocks, by means of the window, a gas flowing through the first waveguide section and forces that gas to flow through the gas bypass filtration system so that it enters the second waveguide section only after passing through the filter. A system designed to include a pillbox window is also provided.
    Type: Application
    Filed: August 16, 2002
    Publication date: February 20, 2003
    Inventors: William Conway, Vincent Marini, Robert McGowan, Carlos Dantas, Timothy Smith
  • Patent number: 6521876
    Abstract: A volatiles analyzer is disclosed that includes a source of microwave radiation that can selectively produce at least one predetermined frequency of microwave radiation. A cavity is in communication with the source. The walls of the cavity form a twelve faced polyhedron in which eight faces form a regular octagon and having two faces that are both non-parallel and non-perpendicular to the eight faces of the regular octagon. The polyhedron focuses microwave energy of the predetermined frequency on a balance pan while supporting a plurality of TM and TE modes in the cavity.
    Type: Grant
    Filed: June 25, 2001
    Date of Patent: February 18, 2003
    Assignee: CEM Corporation
    Inventors: William Edward Jennings, Matthew Donald Barrett, Edward Earl King
  • Patent number: 6515266
    Abstract: A cooking apparatus has a door for opening and closing the opening of a heating chamber. The door has an operation portion that permits setting of heating conditions such as heating time and heating mode and a display panel for displaying the heating conditions. The door is composed of a door frame constituting the outer frame of the door, and a door screen made of an elastic material and fitted in the door frame. A door sheet is laid over the door screen by being bonded thereto. In the door sheet are formed operation keys that are arranged in the operation portion, a transparent portion that serves as a display window through which to view the display panel, and a transparent portion that serves as a peep window through which to look into the heating chamber.
    Type: Grant
    Filed: January 24, 2001
    Date of Patent: February 4, 2003
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Tadashi Nasu, Tadanobu Kimura
  • Patent number: 6512214
    Abstract: An apparatus for suspending a microwave oven, which includes a main body having a rear plate formed with a through hole thereon and a cooking chamber formed therein, comprises: a support plate mounted to a wall face to which the microwave oven is installed; a hooking member protruding toward the main body through the through hole of the rear plate from a planar surface of the support plate; a plate spring having one end portion fixed to the main body and the other end portion elastically deformable between a first position where the plate spring is disengaged from the hooking member and a second position where the plate spring is engaged with the hooking member; and an actuating member connected between the microwave oven and the plate spring for elastically deforming the plate spring between the first position and the second position.
    Type: Grant
    Filed: February 22, 2001
    Date of Patent: January 28, 2003
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sang-jin Jeong, Kwang-il Yang
  • Patent number: 6512216
    Abstract: A method of heating an article with microwave energy is described in which a thin layer of highly microwave absorbent powdered material is provided around at least a portion of a container made of microwave transparent material. The article to be heated is placed at a position within the container where the article is adjacent the thin layer of highly microwave absorbent powdered material, and microwave energy is applied to the container.
    Type: Grant
    Filed: January 17, 2002
    Date of Patent: January 28, 2003
    Assignee: The Penn State Research Foundation
    Inventors: Shalva Gedevanishvili, Dinesh K. Agrawal, Rustum Roy, Balasubramaniam Vaidhyanathan
  • Publication number: 20020158066
    Abstract: A furnace is provided for microwave sintering of nuclear fuel. A stationary wave is generated in an antenna cavity and used to extract microwaves through slots into a resonance chamber containing the nuclear fuel. A position of the slots is adjusted in such a way that a predetermined temperature profile is produced in the nuclear fuel.
    Type: Application
    Filed: June 26, 2002
    Publication date: October 31, 2002
    Applicant: Siemens Aktiengesellschaft
    Inventors: Wolfgang Dorr, Thorsten Gerdes, Gerhard Gradel, Bruno Schmitt, Monika Willert-Porada
  • Patent number: 6472648
    Abstract: A continuous flow type heating apparatus using microwave, which can continuously supply hot water with practically usable flow amount and temperature. An open part is formed on a top face of a horizontally prolonged empty box 10 to become an emitting port of the microwave. The empty box 10 is divided into two by a vertical partition except for the upper and lower part of the emitting port. One side of the space is horizontally divided into three by two of an upper and a lower partitions 12, 13 on which slits 12a, 13a are set at a desired interval. The space formed on the partition 12 becomes a first irradiation part 4. The space formed under the partition 13 and connected in lower part to the space on another side becomes a second irradiation part 5. A water supply pipe 2 is disposed at the center of the space formed between the partitions 12 and 13. The microwave from a microwave oscillator 6 is irradiated from the emitting port into the empty box 10.
    Type: Grant
    Filed: July 27, 2001
    Date of Patent: October 29, 2002
    Inventors: Masakazu Matsuo, Hideaki Matsuo
  • Publication number: 20020153370
    Abstract: A mobile, low powered microwave oven is disclosed. The oven has top entry to the heating chamber, it is powered from the cigarette lighter, has the controls and display and the cooling vents also on the top surface of the oven. The oven is arranged to be secured to the seat by the seat belts in such a manner that the oven will operate while so secured. There is also a spill container in the heating chamber. Materials may be used that make the oven cabinet transparent.
    Type: Application
    Filed: December 29, 2000
    Publication date: October 24, 2002
    Inventor: Peter S. Stutman
  • Patent number: 6467475
    Abstract: The invention relates to a stove for cooking food with a viewing window, and a viewing window for household appliances, such as cooking stoves or ovens, which window can be mounted in a wall of the housing of the stove for cooking food or the household appliance such as a cooking stove or oven, and which window is comprised of at least two transparent panes arranged at a distance from one another, whereby between the two transparent panes there is contemplated a screen, or blind, which covers, or closes, the viewing area, and which screen is adjustable from the exterior of the appliance.
    Type: Grant
    Filed: July 3, 2001
    Date of Patent: October 22, 2002
    Assignee: Schott Glas
    Inventors: Kurt Leutner, Oliver Gros
  • Patent number: 6469287
    Abstract: A combination microwave ventilated hood cooking system including a microwave oven with a cooking cavity; a magnetron for generating microwaves located adjacent the cooking cavity; and cooling fan outside the cooking cavity. The cooking cavity including at least two trays of different shapes and a stirrer for dispersing microwaves in the cooking cavity. A guide is between the stirrer and the cooling fan such that the guide has a downward slope from the cooling fan to the stirrer. During operation of the microwave, the cooling fan creates an air current, which is directed to the stirrer by the guide and drives the stirrer to disperse microwaves in the cooking cavity and direct an air current to cool the magnetron.
    Type: Grant
    Filed: August 21, 2000
    Date of Patent: October 22, 2002
    Assignee: LG Electronics Inc.
    Inventor: Gi Young Kim
  • Patent number: 6462320
    Abstract: This invention relates to a dielectric heating device. More particularly, it relates to a dielectric heating device which employs microwave heating, suitable for heating or cooking foodstuffs and suitable for, but not restricted to, use as a domestic or institutional microwave oven.
    Type: Grant
    Filed: January 11, 1999
    Date of Patent: October 8, 2002
    Assignee: Technology Finance Corporation (Proprietary) Limited
    Inventors: Paul Fritz Fuls, Andre Keith Joubert, Johann Daniel le Roux, Mathys Johannes Rossouw
  • Patent number: 6457506
    Abstract: The decapsulating method is for an integrated circuit package and includes the steps of subjecting the encapsulant to electromagnetic radiation, and, more preferably microwave radiation, to break the polymer bonds of the polymer resin and convert the encapsulant to loosened particles. The loosened particles can then be removed to thereby decapsulate the integrated circuit package. The method may further include the step of maintaining the integrated circuit package below a predetermined temperature during the subjecting step. The step of maintaining the temperature below the predetermined temperature may be performed by controlling a power of the electromagnetic radiation, such as based upon sensing a temperature of the integrated circuit package. The method may further comprise the step of varying a frequency of the microwave radiation during the subjecting step.
    Type: Grant
    Filed: October 29, 1999
    Date of Patent: October 1, 2002
    Assignee: Intersil Americas Inc.
    Inventor: Robert K. Lowry
  • Patent number: 6455826
    Abstract: The invention is directed at an apparatus capable of the continuous drying of ceramic articles which produces little or no microwave radiation emission. The drying apparatus comprises comprise a microwave-heating chamber, for heating a ceramic, having an entrance and an exit end and a material flow axis along which the ceramic articles are conveyed. Positioned adjacent the entrance and exit ends of the microwave-heating chamber, respectively, are a first and second attenuation chamber each having an entrance and an exit end. An inlet chamber, having a material flow path, is connected to the entrance end of the first attenuation chamber with a portion of the material flow path disposed at an angle to the flow axis. Connected to the exit end of the second attenuation chamber is an outlet chamber having a second material flow path; again at least a portion of the material flow path is at an angle to the material flow axis.
    Type: Grant
    Filed: June 30, 2000
    Date of Patent: September 24, 2002
    Assignee: Corning Incorporated
    Inventors: Carlos R. Araya, Ronald A. Boyko
  • Patent number: 6452142
    Abstract: A microwave oven has an oven cavity with a wall (2) formed with a hole (6) covered on an external side of the wall by a metal launch box (8) and choke plate (7). A metal match plate (10) is mounted on the internal side of the wall (2) so that the match plate (10) and the launch box (8) form a launch cavity for delivering microwave energy to the cavity. The choke plate (7) has a peripheral choke channel which prevents leakage of microwave energy between the launch box (8) and choke plate (7), enabling the choke plate (7) and match plate (10) to be bolted to the wall (2).
    Type: Grant
    Filed: January 31, 2001
    Date of Patent: September 17, 2002
    Assignee: Apollo USA Inc.
    Inventor: Kenneth Ian Eke
  • Patent number: 6448540
    Abstract: A microwave oven for heating foodstuffs, comprising an oven cavity (4), a loading zone for the foodstuffs arranged in the oven cavity, a microwave unit for feeding microwaves to the oven cavity, and a browning device (13) having a radiation means (17) for generating infrared (IR) radiation. The browning device also comprises a reflector (16) adapted to reflect IR radiation essentially towards the loading zone. At least a surface layer of the reflector is made of a non-metallic, reflective and heat-resisting material.
    Type: Grant
    Filed: April 4, 2001
    Date of Patent: September 10, 2002
    Assignee: Whirlpool Corporation
    Inventors: Eckart Wilhelm Braunisch, Gunnar Nyren
  • Patent number: 6444963
    Abstract: A safe and effective microwave deodorizer including a volatile medium, such as a liquid solution of water and citrus oils, contained in an absorbent material such as a non-metallic sponge. When the microwave deodorizer is heated in a microwave oven, the microwave deodorizer releases deodorizing vapors in a manner designed to deposit a deodorizing residue on an inner surface of the microwave oven.
    Type: Grant
    Filed: February 16, 2001
    Date of Patent: September 3, 2002
    Inventor: Raymond G. Donahue
  • Patent number: 6433320
    Abstract: A dispenser for dispensing a heated wet food or beverage product that includes a housing capable of receiving the product, a heating device including an electrical power supply and a magnetron configured to supply electromagnetic energy in the microwave range to a wave-guide, and a heating passage configured to supply the product on-demand and arranged to intersect the wave-guide to heat the product when electromagnetic energy is applied within the wave-guide. The invention aims to prevent degradation and microbiological contamination of the product by maintaining it at ambient temperature and then heating and dispensing it only on-demand.
    Type: Grant
    Filed: August 21, 2001
    Date of Patent: August 13, 2002
    Assignee: Nestec S.A.
    Inventors: Larry Bartoletti, Balakrishna Reddy
  • Publication number: 20020084265
    Abstract: The present invention relates to a microwave oven, and more particularly, to an outfit plate fitting structure in a microwave oven which has an easy fasting works and reduced components.
    Type: Application
    Filed: October 26, 2001
    Publication date: July 4, 2002
    Applicant: LG Electronics Inc.
    Inventor: Seong Soon Ahn
  • Patent number: 6414287
    Abstract: Disclosed is a parts arrangement structure for a DC microwave oven which is formed by a combination of an upper panel, a lower panel and a rear panel, a space inside the DC microwave oven being divided into a device chamber in which a magnetron and an air guide are placed and a cooking chamber in which a rotating motor for rotating rollers and a turntable is placed, the DC microwave oven having a control panel which closes a front end of the device chamber. The parts arrangement structure comprises a high voltage transformer and an inverter circuit board mounted to the lower panel inside the device chamber; and at least one high voltage capacitor mounted to the lower panel below the cooking chamber.
    Type: Grant
    Filed: March 13, 2001
    Date of Patent: July 2, 2002
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yong-woon Han, Seong-deog Jang, Kwang-seok Kang, Dae-sung Han, Jin-ho Kim, Han-seong Yoo, Han-sung Kang
  • Publication number: 20020070212
    Abstract: Disclosed is a microwave oven having a toaster, in which slices of bread can be baked. The microwave oven has a heating chamber for heating food therein; an instrument compartment containing electric components for generating microwave oven supplied to the heating chamber; a toaster casing disposed in front of the instrument compartment with its front open; a toaster door for opening and closing the open front of the toaster casing; and at least a heater disposed in the toaster casing so as to heat bread. In the microwave oven, the toaster section is arranged in front of the instrument compartment, so that the space in the microwave oven is most effectively utilized.
    Type: Application
    Filed: December 7, 2001
    Publication date: June 13, 2002
    Applicant: LG ELECTRONICS INC.
    Inventors: Seong-Soo Choi, Sang-Jin Oh, Yoon-Gun Baek
  • Patent number: 6396037
    Abstract: The invention provides a dielectric heating device. The device includes a plurality of electrically conductive side walls which are electrically interconnected in use and arranged in series to define a heating cavity. At least one pair of adjacent side walls has its walls inclined to each other at a corner having an included angle selected from the group consisting of acute angles and obtuse angles. At least one electromagnetic power source capable of emitting electromagnetic radiation suitable for dielectric heating is arranged to feed waves of such radiation into the cavity with circular polarization of the waves, to cause the cavity to act as a multimode resonant heating cavity.
    Type: Grant
    Filed: November 3, 2000
    Date of Patent: May 28, 2002
    Assignee: Technology Finance Corporation (Proprietary) Limited
    Inventors: Mathys Johannes Rossouw, Eugene Avenant
  • Patent number: 6393725
    Abstract: Compact microwave clothes dryer and method in which the dryer is small enough to be placed on a countertop, and air is circulated past microwave generator and power supply components to the drying chamber to transfer heat from the components to clothes in the chamber to supplement the microwave drying.
    Type: Grant
    Filed: June 13, 2000
    Date of Patent: May 28, 2002
    Assignee: Electric Power Research Institute, Inc.
    Inventors: Richard D. Smith, John F. Gerling, Stephen D. Schultz