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A sealed crustless sandwich for providing a convenient sandwich without an outer crust which can be stored for long periods of time without a central filling from leaking outwardly.
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| Number | Title | Issue Date |
| 7863548 | Method for preventing overheating of microwave oven A method for preventing overheating of a microwave oven includes receiving information of a cooking condition and a cooking start command for current cooking, the cooking condition including a magnetron output level and a current cooking period, confirming pause dur... | 01/04/2011 |
| 7432484 | Current control for high-frequency heating apparatus The invention relates to a high frequency heating apparatus and provides a tracking method of a frequency modulation in order to prevent an extension of the harmonic current component of an oscillation threshold ebm which varies from moment to moment in accordance w... | 10/07/2008 |
| 7414228 | High frequency heating apparatus There is constructed a constitution such that a shunt resistor 30 is interposed in series with a portion capable of measuring an output current of a unidirectional power source portion 1 of a high frequency heating apparatus and a voltage generated at ... | 08/19/2008 |
| 7405382 | System for microwave enhanced chemistry According to the present invention, a microwave generator includes a variable voltage provided from a first transformer to a second transformer having a secondary winding split into a filament winding cathode low AC signal and a secondary winding providing a high vo... | 07/29/2008 |
| 7365294 | Microwave oven A microwave oven, including a transformer assembly accommodating a transformer and filled with a cooling material to cool the transformer; and a temperature-sensitive switch electrically connected to the transformer to shut off power when a temperature of a surface ... | 04/29/2008 |
| 7355152 | Power control apparatus and method for electric cookers A method of power control apparatus for electric cookers is provided. In the method, a micro controller unit (MCU) with a programmer pulse generator (PPG) and analog/digital (AID) converters is utilized, wherein a command can be inputted externally to the MCU for re... | 04/08/2008 |
| 7312427 | High-frequency dielectric heating device and printed board with thermistor A high-frequency dielectric heating device includes: a microwave output unit including an inverter unit using a semiconductor switching element, heat-radiating fins for radiating the heat generated by an IGBT, and a printed board having a thermistor for detecting th... | 12/25/2007 |
| 7304869 | Inverter power source control for high frequency heater At least one of a start abnormality detector (31), a temperature abnormality detector (32) and a voltage abnormality detector (33) has a latch inhibiting circuit for inhibiting retention of a detecting state when one of the abnormality detectors... | 12/04/2007 |
| 7285989 | Device for detection of power-off A power-off detection device is formed without use of a photo coupler, which is expensive and occupies a relatively large area. The power-off detection device rectifies AC power, provided as external input power from a power supply device, into DC power, detects the... | 10/23/2007 |
| 7282682 | High-frequency heating apparatus A purpose of the present invention is to provide an inverter circuit capable of firmly turning ON IGBTs under limited condition, while a heat loss and noise can be hardly produced in semiconductor switching elements. In a resonant type high frequency heating ... | 10/16/2007 |
| 7271372 | Power control apparatus and method for electric cookers A power control apparatus for electric cookers includes an input unit, an output unit, a micro controller unit (MCU), having a programmer pulse generator (PPG) and at least an analog/digital converter built therein, a power circuit, an exciter-coil circuit, an outpu... | 09/18/2007 |
| 7258064 | Food product timing system A food timing system is disclosed that includes a number of timer modules associated with food holding devices in a restaurant. The timer modules are connected in a network for communicating information about the food being held in food holding compartments of the f... | 08/21/2007 |
| 7253383 | Transformer assembly for microwave oven, method for manufacturing the same, and microwave oven having the same A transformer assembly for a microwave oven having a magnetron, including a transformer to apply voltage to the magnetron of the microwave oven; a container receiving the transformer therein and having a base plate coupled to the microwave oven and a cover body coup... | 08/07/2007 |
| 7230219 | Inverter power source control for high frequency heater An oscillation control signal generated by an inverter power source control circuit (12) includes a reference voltage setting signal for approximating the current waveform of the AC output form the AC power source (1) to a sinusoidal wave by making bot... | 06/12/2007 |
| 7230216 | Induction heating method and unit It is an object of the present invention to prevent temperature decrease in a border portion of each of heating coils and to enable to eliminate an influence given by the change in a load state. In order to attain this object, an induction heating unit according to ... | 06/12/2007 |
| 7224589 | Inverter circuit for producing power factor correction effect Provided is an inverter circuit including a rectification and filter circuit and an inverter driver circuit interconnected the rectification and filter circuit and a load. The inverter driver circuit comprises a second controller for receiving light adjustment cycle... | 05/29/2007 |
| 7202451 | Induction heating method and unit It is an object of the present invention to prevent temperature decrease in a border portion of each of heating coils and to enable to eliminate an influence given by the change in a load state. In order to attain this object, an induction heating unit 400 ac... | 04/10/2007 |
| 7171879 | Discrete proximity detection system A machine is described having at least one dangerous portion. The machine also includes a safety system to detect dangerous proximity between a person and the dangerous portion and perform a predetermined action to limit or prevent injury to the person from the dang... | 02/06/2007 |
| 7145111 | Heater drive circuit A heater control circuit performs ON/OFF control of a switching converter for a FET so that an AC line current supplied from a DI terminal becomes approximate to a predetermined value. A current flowing to a heater is stabilized to a predetermined value, and, unless... | 12/05/2006 |
| 7132926 | Smart tray system and method for restaurant inventory management A smart tray system includes a plurality of information tags and a plurality of communication devices, which can communicate with each of the information tags when the information tags are located in the proximity of the communication devices. Each information tag i... | 11/07/2006 |
| 7109669 | Microwave lamp power supply that can withstand failure in high voltage circuit A radiation generating system for treating a coating on a substrate. A high voltage circuit provides power to a microwave generator that, in turn, supplies microwave radiation to drive a lamp. A current limiting device is connected between the high voltage circuit a... | 09/19/2006 |
| 7102110 | Magnetron oscillating apparatus A magnetron oscillating apparatus includes a magnetron, power supply unit, and switch circuit. The magnetron oscillates a microwave. The power supply unit applies a power to the magnetron. The switch circuit is connected between the power supply unit and the cathode... | 09/05/2006 |
| 7091459 | Cooking apparatus A cooking apparatus, in which lamps are conveniently and quickly replaced, including a lamp assembly having a lamp casing accommodating lamps and covering an irradiation hole formed in a front panel, and a transparent plate completely covering the irradiation hole. ... | 08/15/2006 |
| 7071624 | Microwave tube system and microwave tube A microwave tube has a configuration in which the connection between an anode electrode and the helix is cut, the helix is grounded, and a current suppression element is provided between the anode electrode and ground voltage for suppressing the continuous time inte... | 07/04/2006 |
| 7064305 | Apparatus and method for controlling output of magnetron of microwave oven An apparatus and method for controlling an output of a magnetron of a microwave oven is provided. The method includes setting an initial input current to generate an output higher than rated output. Thereafter, the magnetron is driven using initial input current of ... | 06/20/2006 |
| 7060954 | Magnetron drive power supply Timing of zero voltage in zero-voltage detector for detecting zero voltage of a commercial power supply 1 is predicted and input from the zero-voltage detector 6 is received only for a given time before and after the predicted timing, whereby overvolta... | 06/13/2006 |
| 7057145 | Menu selection device in microwave oven A menu selection device for a microwave oven is provided which is constructed such that a single display device may be divided into a menu guide unit and a menu selection unit. The menu guide unit is used to display a variety of menus, whereas the menu selection uni... | 06/06/2006 |
| 7026590 | Low-output microwave, lighting system and flicker removing method using the same A low-output microwave lighting system includes: a rectifier for rectifying general AC power inputted through a power source unit and outputting a DC voltage; a power factor compensator for compensating a power factor of the DC voltage inputted through the rectifier... | 04/11/2006 |
| 7015440 | Microwave oven and method of controlling the same A microwave oven and a method of controlling the same, in which a cooking unit disposed in a cooking cavity is moved from an initial position to a cooking position. In the microwave oven, a magnetron is operated after heaters are moved to respective cooking position... | 03/21/2006 |
| 7005983 | Methods and apparatus for detecting refrigerator door openings A detection apparatus for detecting refrigerator door openings is coupled to at least one switch configured to be activated by a door opening. When the door is opened, the switch is activated and inputs a signal to the detection apparatus. The detection apparatus re... | 02/28/2006 |
| 7002123 | Microwave oven and method of controlling the same A microwave oven and a method of controlling the same. The microwave oven is capable of using a plurality of input powers with different frequencies. The microwave oven includes input power sources, an interrupt generation unit and a control unit. The interrupt gene... | 02/21/2006 |
| 6998591 | High frequency heating apparatus with displacement identifiable remaining heating duration and phase control based thereon In a high frequency heating apparatus, a microcomputer inputs the phase signal of a commercial AC power supply and determines whether a timer switch in a mechanical timer apparatus is in ON-state to determine whether the high frequency heating apparatus is in a heat... | 02/14/2006 |
| 6995522 | Phase controller In a phase controller used in a light control of an incandescent lamp, noise reduction, prevention of elements from damage due to short circuit current, downsizing and lower cost are purposed. A CPU circuit of a control circuit sets a gradual increase term during wh... | 02/07/2006 |
| 6956190 | High-frequency heating apparatus with steam generating function and water supply controlling method therefor The object of the invention is to provide a water supply controlling method of a high-frequency heating apparatus and the high-frequency heating apparatus wherein water supplied to a heating chamber as steam is controlled in the quantity and the quality and power ca... | 10/18/2005 |
| 6936803 | Inverter circuit of microwave oven An inverter circuit of a microwave oven employs a technique which decreases the unit manufacturing cost of production and controls an output of a magnetron correctly. The invert circuit includes a micom outputting a reference voltage preset by a user; an input curre... | 08/30/2005 |
| 6922790 | Three wire communication protocol Disclosed is a serial communications protocol for connecting a master and a plurality of slaves using three communication lines. The protocol establishes a method for communication between the master and any slave. Any device on the communication bus may initiate th... | 07/26/2005 |
| 6922043 | DC converter with halt mode setting means A DC converter with a halt mode setting is disclosed for preventing the occurrence of over-current while alleviating the increase in the size of circuits, along with a method for setting up such a halt mode. The DC converter includes a semiconductor switch, a clock ... | 07/26/2005 |
| 6909076 | Microwave oven and control method thereof A microwave oven and control method thereof in which the microwave oven has a magnetron initially driven for a preset period of time to generating an output of at least 20% of a rated output of the magnetron when a cooking mode requiring a low output of less than 20... | 06/21/2005 |
| 6900423 | Microwave oven and control unit thereof A microwave oven includes a widely applicable and extensible Reduced Instruction Set Computer (RISC) microprocessor, allowing a control panel to be easily included, and which controls various functions using a single microprocessor, reducing a size of the control pa... | 05/31/2005 |
| 6891738 | Power-supply unit for electronic oven A Hall element (H) is arranged at an air gap of a choke coil (30). Power semiconductor elements (P1) and (P2) are attached to a heat radiation fin (61) directly by soldering. A rectangular-hollow-shaped metal core (27) is formed by... | 05/10/2005 |
