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| Number | Title | Issue Date |
| 7569800 | Method and apparatus for rapid thermal processing and bonding of materials using RF and microwaves A method and apparatus for rapid and selective heating of materials using variable frequency RF and microwaves. The apparatus uses variable frequency solid state electronics as a microwave power source, a novel microwave heating head to couple microwave energy to th... | 08/04/2009 |
| 7423244 | Heating device for a planar heater with induction heating elements A heater for a hob or cooktop having a glass ceramic surface is disclosed, whereby a number of individual modules with induction coils are provided with converters and a converter control for each induction coil. The modules may be independently assembler and/or rep... | 09/09/2008 |
| 7368688 | Apparatus and method for sensing load of electric cooker A heater unit is provided, the heater unit equipped with an induction heating coil and an electric heater selectively operated based on kind and state of a load of a cooking vessel placed on the heater unit. The kind is determined by an input current inputted when a... | 05/06/2008 |
| 7365290 | Method and device for thin plate article induction heating, and thin plate article A reduction of the unevenness of a temperature increase at the end of heating work can be achieved without specific equipment, and with securing the shortening of the working time, which is an advantage of a bulk heating. When a region to be heated of an arti... | 04/29/2008 |
| 7355150 | Food preparation system with inductive power A food preparation system includes a non-contact power supply for energizing a cooking appliance. The food preparation system includes a communication system for enabling communication between a food appliance and the system. The appliance transmits an identifier to... | 04/08/2008 |
| 7265325 | Cap sealer with a graduated power display An induction foil cap sealer which includes a visual display device that shows power consumption in a bar graph format. ... | 09/04/2007 |
| 7238924 | Magnetic flux image heating apparatus with control of movement of magnetic flux shield An image heating apparatus includes a heating rotatable member for heating an image on a recording material in a heating nip; a magnetic flux generator for generating a magnetic flux for induction heat generation in the heating rotatable member; a magnetic flux conf... | 07/03/2007 |
| 7239836 | Fixing apparatus A fixing apparatus used in an image forming apparatus has a fixing member for fixing toner on paper and a pressure member making contact therewith to form in between a nip through which paper is passed. The fixing member has a support member formed of a ferromagneti... | 07/03/2007 |
| 7205514 | Heating apparatus with movable magnetic flux adjusting means An image heating apparatus has a magnetic flux generator for generating a magnetic flux; a heat generation member for generating heat by the magnetic flux generator; a magnetic flux adjustor for adjusting an effective magnetic flux region toward the heat generation ... | 04/17/2007 |
| 7187882 | Image fusing device with power control and image forming apparatus with same This invention is intended to control the amount of power to be supplied to a fusing heater below a maximum applicable current value. The engine controller supplies electricity to both of two heating bodies at the same fixed duty D1. At a phase angle al correspondin... | 03/06/2007 |
| 7176424 | Induction heating cooking apparatus and method for operating the same An induction-heating cooking apparatus and a method for operating the same are disclosed. Upon receiving a low-voltage signal in a high-output level state, the apparatus controls an output signal to allow an inverter to be operated only in a ZVS (Zero Voltage Switch... | 02/13/2007 |
| 7170037 | Indentification system for insert elements for tempering foods accommodated in containers The invention relates to an identification system for insert elements for tempering food accommodated in containers. Advantageously, the invention can be used in particular for short-term, economic and high-quality heating of prefabricated food wherein heating can b... | 01/30/2007 |
| 7157674 | Induction heater with controlled current to heating coil A detector is operable to detect a displacement of a load by an ascending force based on a period of time from a time a heating output of an inverter drops from a predetermined level to a first level, to a time the heating output returns back to a second level large... | 01/02/2007 |
| 7151242 | Induction heating system and method An excitation system for heating food, water, or both in airplanes uses induction heating. The system includes at least one load circuit including an inductor that is excited with a load circuit AC voltage, a load circuit alternating current, or both the load circui... | 12/19/2006 |
| 7139500 | Image fusing device and image forming apparatus This invention is intended to control the amount of power to be supplied to a fusing heater below a maximum applicable current value. The engine controller supplies electricity to both of two heating bodies at the same fixed duty D1. At a phase angle α1 | 11/21/2006 |
| 7122770 | Apparatus for delivery of induction heating to a workpiece A method and apparatus for inducing heat within a workpiece. A flexible fluid-cooled induction heating cable is used to produce a magnetic field to induce electric current in a workpiece. The induction heating cable has separate fluid and electrical connectors to se... | 10/17/2006 |
| 7115843 | High-frequency pulse oscillator The present invention generally relates to a high-frequency pulse oscillator, and more particularly to a high-frequency pulse oscillator adapted to provide pulse currents having a high frequency and large amplitude so as to transition metallic materials into a plast... | 10/03/2006 |
| 7076183 | Image fusing device and image forming apparatus This invention is intended to control the amount of power to be supplied to a fusing heater below a maximum applicable current value. The engine controller supplies electricity to both of two heating bodies at the same fixed duty D1. At a phase angle α1 | 07/11/2006 |
| 7075044 | Induction heating cooking apparatus, operation of which is interrupted by container eccentricity An induction-heating cooking apparatus, operation of which is interrupted by container eccentricity is disclosed. Upon receiving an input signal varying with the degree of eccentricity of a container, the apparatus changes a reference signal for determining the pres... | 07/11/2006 |
| 7068054 | Real-time carbon sensor for measuring concentration profiles in carburized steel An alloy solute sensor probe, measurement system and measurement method are disclosed for directly measuring solute concentration profiles in conductive material components at elevated processing temperatures. The disclosed device and method permit direct, real-time... | 06/27/2006 |
| 7057141 | Temperature control method and apparatus A thermal mass is characterized by a reference temperature. A thermal interrupter thermally interrupts the thermal mass upon contact. A look ahead processor examines the thermal interrupter ahead of anticipated contact with the thermal mass and determines an amount ... | 06/06/2006 |
| 7041946 | Energization cycle counter for induction heating tool An induction heat treating process with a remote sensor for monitoring the duration of energization of an induction heating coil each time the induction heating coil is consecutively cycled. An identifying tag is preferably attached to, embedded within the induction... | 05/09/2006 |
| 7034263 | Apparatus and method for inductive heating A system and method for inductive heating, in which a power source provides current pulses with high-frequency harmonics to a heater coil, the coil generating a magnetic flux for inductive heating of an article. The high-frequency harmonics enhance a relative propor... | 04/25/2006 |
| 7026585 | Method for monitoring the performance of a magnetic pulse forming or welding process The performance of a magnetic pulse forming or welding process is monitored by positioning a deformation member relative to an inductor coil of the apparatus, then energizing the inductor coil to exert a force thereon. The deformation member can be a plastically def... | 04/11/2006 |
| 7019270 | System for reducing noise from a thermocouple in an induction heating system A method and apparatus for reducing electrical noise in an electrical signal from a temperature feedback device to an induction heating system. The induction heating system has an electrical connector that is adapted to electrically couple a temperature feedback dev... | 03/28/2006 |
| 7015439 | Method and system for control of on-site induction heating A workpiece heating system having an induction heating power source and a controller. The controller is operable to control the operation of the power source according to programming instructions received from a user. The controller enables a user to establish a seq... | 03/21/2006 |
| 7009159 | Induction heating apparatus having electrostatic shielding member An induction heating apparatus with high safety is provided in which leakage current is prevented from flowing to the human body and there is no possibility of an electric shock even when an electrostatic shielding member does not sufficiently perform its function. ... | 03/07/2006 |
| 6965098 | Energization cycle counter for induction heating tool An induction heat treating process with a sensor for monitoring the duration of energization of an induction heating coil each time the induction heating coil is consecutively cycled. The sensor is preferably a counting mechanism attached to or embedded within the i... | 11/15/2005 |
| 6956189 | Alarm and indication system for an on-site induction heating system An induction heating system having a fluid cooling unit, a power source, an induction heating device, a controller, and an alarm system to place the system in a safe condition when an improper operating condition is detected. The induction heating system may have a ... | 10/18/2005 |
| 6943329 | Induction heating system for reduced switch stress An induction heating system is provided. The induction heating system comprises a power switch, a resonant heating circuit, and a pulse initiator. The resonant heating circuit is configured to generate an oscillating voltage in response to a DC pulse input. The puls... | 09/13/2005 |
| 6940054 | Production/injection line and methods relating to same A production/injection line including a production/injection tube and heating apparatus for heating of the production/injection tube. The line also includes insulation and heat conductive material to control the heat transfer from the heating apparatus towards the p... | 09/06/2005 |
| 6930293 | Induction heating apparatus, heat fixing apparatus and image forming apparatus An induction heating apparatus for a fixing device of an image forming apparatus includes a rectifying circuit for rectifying a commercial power supply, an excitation coil, a switching element for switching the supply of the output of the rectifying circuit to the e... | 08/16/2005 |
| 6911089 | System and method for coating a work piece A method and apparatus for coating a work piece. The system comprising an applicator adapted to travel over a portion of the work piece. The system being operable to heat the work piece and/or apply a coating onto the work piece as the applicator travels over the wo... | 06/28/2005 |
| 6903315 | Method and unit for wrapping an article in a sheet of thermoplastic wrapping material In a method for wrapping an article in a sheet of thermoplastic wrapping material, the temperature of an at least partly metal belt (5) looped and induction heated to seal wrapping material (4) is detected by detecting a first signal (S1) to the... | 06/07/2005 |
| 6828530 | Apparatus for marking the operation of an induction coil by illumination An illuminating apparatus for an induction coil of an induction cooking field is in the form of a ⅓ circular ring segment and carries conducting tracks, which form turns of a coil, which is connected to several LEDs. During induction coil operation an alternating ... | 12/07/2004 |
| 6812440 | Induction heating device An induction heating device prevents an object to be heated from being displaced and buoyed from a mounting surface due to an mutual action of repulsive forces between the object to be heated and an induction heating coil. The induction heating device includes a sou... | 11/02/2004 |
| 6806447 | Spatula induction heating apparatus A spatula heating apparatus with excellent usability which overcomes drawbacks inherent to conventional gas burner type and electro-thermal type apparatuses. A spatula heating apparatus for heating spatulas 9, 9a for wax molding includes a heating coil... | 10/19/2004 |
| 6794622 | Device and method for removal of rust and paint A method and a device for the removal of rust and paint from a metal surface, wherein induction heat is used for heating the metal surface. The device includes an electrical power supply coupled to an induction coil. A wheel and a tachometer on the device measure th... | 09/21/2004 |
| 6770857 | Induction heating apparatus An induction heating apparatus can heat aluminum pot etc. with pot vibration noise being suppressed. During a turn-on time of second switching device 57, an energy is accumulated at choke coil 54, and at the same time a resonant current with a shorter ... | 08/03/2004 |
| 6737617 | Methods and apparatus for a signal distortion based detection system Methods and Apparatus for detecting the presence of a conductor near an inductive coupling loop are disclosed. The method includes supplying an excitation to the coupling loop, measuring the signal distortion induced by the excitation signal, and monitoring the dist... | 05/18/2004 |
