Bizarre Patents
A beach chair which can be adapted for a woman who is pregnant and wishes to sunbathe in the prone position.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7973268 | Induction heating cooking device An induction heating cooking device has an inverter including a resonant circuit, and a heating output control part. The resonant circuit has a resonant capacitor and a heating coil that is magnetically coupled to a load. The inverter has first and second switching ... | 07/05/2011 |
| 7767941 | Inductive heating method utilizing high frequency harmonics and intermittent cooling Heating systems and methods for inductive heating or a combination of resistive and inductive heating. A heater coil is inductively coupled to an article and a current signal is supplied to the heater coil. The heater coil generates a magnetic flux, based on the app... | 08/03/2010 |
| 7442907 | Induction heating cooking device An induction heating cooking device has an inverter including a resonant circuit, and a heating output control part. The resonant circuit has a resonant capacitor and a heating coil that is magnetically coupled to a load. The inverter has first and second switching ... | 10/28/2008 |
| 7368691 | Induction heating apparatus Apparatus for providing electrical power to at least one inductor wherein the at least one inductor is disposed to inductively couple the electrical power to an electrically conductive object to heat the electrically conductive object by inducing electrical current ... | 05/06/2008 |
| 7282680 | Apparatus for controlling inverter circuit of induction heat cooker An apparatus for controlling an inverter circuit of an induction heat cooker which generates and outputs high voltage power to cook food contained in a cooking container is disclosed. The apparatus varies a pulse width of high level interval of a driving pulse accor... | 10/16/2007 |
| 7279665 | Method for delivering harmonic inductive power Method and apparatus for providing harmonic inductive power, and more particularly for delivering current pulses providing a desired amount of pulse energy in high frequency harmonics to a load circuit for inductive heating of an article. By controlling the shape an... | 10/09/2007 |
| 7253381 | Multi-frequency heat treatment of a workpiece by induction heating An apparatus and process are provided for multi-frequency induction heat treatment of workpieces including gears. High frequency power is applied to an induction coil that surrounds the workpiece so that a high frequency magnetic field couples with the workpiece to ... | 08/07/2007 |
| 7186959 | Fixing apparatus A fixing apparatus an aspect of the present invention includes, a heating object which generates the heat by a magnetic flux produced from a coil which generates a predetermined magnetic flux by electromagnetic induction in accordance with a frequency of an input cu... | 03/06/2007 |
| 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 |
| 7145114 | Superheated vapor generator A superheated vapor generator has a tubular, vertically extending container with closed ends. A high frequency induction heating coil is wound around the container. A heating medium is placed in the container and is made from material heatable by electromagnetic con... | 12/05/2006 |
| 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 |
| 7119311 | Induction circuit for contactless power supply apparatus An induction circuit for a contactless power supply apparatus including an induction coil for inducing a current in response to a high frequency current flowing through a primary induction circuit and supplying the current to a load. The induction circuit includes a... | 10/10/2006 |
| 7115846 | Shrinking arrangement for tool holder having an induction-heating arrangement A shrinking arrangement for a tool holder is provided which retains a rotary tool with a press fit in a central accommodation opening. The arrangement includes an induction-heating arrangement for thermally expanding the tool holder in the region of the accommodatin... | 10/03/2006 |
| 7094997 | Heating device and fixing device A CPU detects a temperature of a central part of a heating roller. If the detected temperature does not exceed 180° C., the CPU drives a central coil or a side-end coil for 0.4 second in accordance with a temperature difference between the central part of the heati... | 08/22/2006 |
| 7087870 | Induction heating or melting with multiple frequencies An apparatus and process are provided for multi-frequency induction heating of a workpiece. Switching devices are used to selectively add, remove or reconfigure capacitive elements in the circuit to change the circuit's resonant frequency, and consequently, the freq... | 08/08/2006 |
| 7049764 | Electrodeless lighting apparatus using microwave and method for controlling power thereof An electrodeless lighting apparatus using microwave and a method for controlling its power can lengthen lifetimes of the magnetron by constantly maintaining power applied to a magnetron of the electrodeless lighting apparatus using microwave. Therefore, when inputte... | 05/23/2006 |
| 7049565 | Inductive heating of semi-solid material The present invention utilizes a dynamically controlled frequency system for the process of induction heating semi-solid material. Semi-solid precursor material is machined into billets of a desired size. These billets are subjected to one or more heating processes ... | 05/23/2006 |
| 7045749 | Apparatus for fixing toner on transferred material The present invention relates to a device including a body to be heated to which a magnetic field is supplied to generate heat and which heats a developer on a material to be recorded, a plurality of coil bodies which generate an induced heat in the body to be heate... | 05/16/2006 |
| 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 |
| 7034264 | Heating systems and methods utilizing high frequency harmonics Heating systems and methods for inductive heating or a combination of resistive and inductive heating. A heater coil is inductively coupled to an article and a current signal is supplied to the heater coil. The heater coil generates a magnetic flux, based on the app... | 04/25/2006 |
| 7026586 | Induction heating apparatus with current modulating means A fixing apparatus has an excitation coil disposed adjacent the heating element; a voltage source for applying to the excitation coil a high frequency electric power provided by modulating an input AC electric power with a high frequency, wherein the heating element... | 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 |
| 6996957 | Induction device for shrinking heat-shrinking films onto products to be packaged, packaging system comprising such device, and heat-shrinking film used therewith An induction device for heat-shrinking a heat-shrinking film onto a product comprising induction means for causing the heat-shrinking plastic layer of the heat-shrinking film to heat-shrink onto the product, and supply and control means for the induction means conne... | 02/14/2006 |
| 6963056 | Induction heating of a workpiece An apparatus and process are provided for controlling the cross sectional temperature profile of a continuously moving workpiece with an induction coil assembly that provides for a combination of longitudinal and transverse magnetic flux field heating of the workpie... | 11/08/2005 |
| 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 |
| 6943330 | Induction heating system with resonance detection An induction heating 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 be coupled to a load and configured to generate an oscillating voltage in respon... | 09/13/2005 |
| 6936800 | Heating device and fixing device A CPU detects a temperature of a central part of a heating roller. If the detected temperature does not exceed 180° C., the CPU drives a central coil or a side-end coil for 0.4 second in accordance with a temperature difference between the central part of the heati... | 08/30/2005 |
| 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 |
| 6861630 | Heating device and fixing device A CPU detects a temperature of a central part of a heating roller. If the detected temperature does not exceed 180° C., the CPU drives a central coil or a side-end coil for 0.4 second in accordance with a temperature difference between the central part of the heati... | 03/01/2005 |
| 6861626 | Induction heating roller device for use in image forming apparatus An induction heating roller device that keeps leakage current within specifications and prevents the occurrence of erroneous operations caused by common mode noise. The induction heating roller device includes an induction coil, a grounded heating roller magneticall... | 03/01/2005 |
| 6806448 | Induction heating device with a switching power source and image processing apparatus using the same An induction heating device includes a plurality of induction coils connected to a single high-frequency power source and each being able to be ON/OFF controlled by a switch. A current is selectively fed only to desired part of the induction coils or to all of the i... | 10/19/2004 |
| 6727482 | Apparatus and method for inductive heating An induction heating method and device comprise an inductive heat source (120) having a controller (130), a resonant converter (125) and an induction coil (80). The controller (130) generates a variable frequency variable duty cycl... | 04/27/2004 |
| 6700105 | Induction heating system and method for internal combustion engine A compact induction heating system that is at least partially powered by a source of substantially clean DC current. The induction heating system includes a high frequency inverter with an input connected to a substantially clean DC current source, a firs... | 03/02/2004 |
| 6696675 | Induction heating system for internal combustion engine A compact induction heating system for use on an internal combustion engine driven implement having an engine driven alternator to generate DC current for storage in a battery used as a source of clean DC current of less than 50 volts for ignition of fuel... | 02/24/2004 |
| 6683286 | Method and apparatus for producing power for induction heating with bus bars comprised of plates An induction heating power supply is disclosed. It includes a power circuit having at least one switch and a power output. The output circuit includes an induction head. The output circuit is coupled to the power output. A controller has at least one feed... | 01/27/2004 |
| 6677560 | Apparatus for inductively heating a workpiece The invention relates to an apparatus and a method for heating a workpiece of an inductively heatable material, for example a turbine blade. Such a turbine blade consists of a massive blade base and a low-mass blade leaf. To enable the blade base and blad... | 01/13/2004 |
| 6670588 | Inductive heating roller apparatus An inverter in which the three-phase power source is used as an input power source and the single phase voltage is outputted, is provided. The single phase output voltage of the inverter is applied onto the inductive coil of the inductive heat generation ... | 12/30/2003 |
| 6649022 | Ventilated sealing head for induction sealer An inductive cap sealer for sealing an inner seal over an opening in a container includes a vented sealing head. The sealing head contains an induction coil for producing an electromagnetic field when energized by a power supply. Field focusing elements c... | 11/18/2003 |
