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| Number | Title | Issue Date |
| 8080769 | Characterization of AC mains circuit parameters Methods, devices, and systems implementing AC mains circuit parameter characterization are provided. One example embodiment of an image forming device includes a variable electrical load, and a controller adapted to vary the electrical load based on a characterizati... | 12/20/2011 |
| 7582850 | Household electrical appliance comprising two heating sub-assemblies articulated on each other The subject is a household electrical appliance (1) comprising two articulated heating sub-assemblies (2, 3) and resistances (7) connected to an electricity supply component (8). The component (8) can be separated from the resistan... | 09/01/2009 |
| 7566846 | Multi-zone blanket arrangement A multi-zone blanket includes a body including first heat zones juxtaposed side-by-side and symmetrically aligned within a body cavity. A first primary heating element passes through each of the first heat zones. A first external controller has an AC/DC transformer ... | 07/28/2009 |
| 7420140 | Method and apparatus for controlling the energization of a cooking appliance A control system for an oven includes a first and a second temperature sensor, and a controller. The oven has a first cavity and a second cavity and includes, a first electrical heating element positioned within the first oven cavity, and a second electrical heating... | 09/02/2008 |
| RE40464 | Evaporation device for multiple volatile substances An evaporation device is disclosed for evaporating volatile substances such as insecticides and aromatics of a type having a housing containing a heating block with a heating element, a container for a volatile substance to be evaporated, a wick having a wick end pr... | 08/26/2008 |
| 7411162 | Hot wire control apparatus and method Control system and apparatus for controlling current input to an electrical resistance element such as a seal wire. The system and apparatus of the present invention is a closed loop feedback modification to conventional systems, and takes advantage of the inherent ... | 08/12/2008 |
| 7371996 | Roller-equipped annealing lehr A roller-equipped annealing lehr for flat glass, having a roller conveyor inside a lehr housing, with heating units arranged in pairs above and below the roller conveyor, in rows situated one after another and extending transversely to the feed direction. Temperatur... | 05/13/2008 |
| 7372210 | Method and apparatus for lamp heat control A lamp drive circuit includes an electronic switch in series with the lamp and a source of DC voltage, a control input of the switch being pulse-width-modulated by a control circuit which includes a temperature-sensing circuit for reducing the pulse-width-modulation... | 05/13/2008 |
| 7367334 | Fluid vaporizing device having controlled temperature profile heater/capillary tube A fluid vaporizing device useful for vaporizing fluid into an aerosol includes a capillary tube made from an electrically conductive material, an upstream electrode connected to the capillary tube, and a downstream electrode connected to the tube and provided with a... | 05/06/2008 |
| 7368686 | Apparatus and methods for operating an electric appliance An electric cooking appliance is provided. The electric cooking appliance includes a plurality of surface heating elements and a plurality of sensors configured to monitor an operational status of a corresponding surface heating element. The electric cooking applian... | 05/06/2008 |
| 7368832 | Circuit and fault tolerant assembly including such circuit A circuit is provided that provides for the same power characteristics to an assembly of electrical resistive elements wired in parallel as to the assembly as wired in series. An input power source provides electrical resistive power to a plurality of load elements,... | 05/06/2008 |
| 7360366 | Cooling apparatus, exposure apparatus, and device fabrication method An apparatus for adjusting temperature of an object includes a heat radiation member, a deflection member to deflect heat radiation from the heat radiation member toward a region of the object, and an adjusting system to adjust temperature of the heat radiation memb... | 04/22/2008 |
| 7351937 | Control circuits for hot melt adhesive heater circuits and applicator heads An electronic control circuit, for use in connection a hot melt adhesive dispensing system having a relatively large applicator head, has a plurality of heater circuits and a plurality of temperature sensors disposed upon different regions of the relatively large ap... | 04/01/2008 |
| 7342202 | Electric grill An electric cooking assembly includes a main body portion that defines a cooking area. First and second cooking surfaces are contained within the cooking area. A first electric heating element arranged to provide heat to at least a portion of the first cooking surfa... | 03/11/2008 |
| 7332692 | Redundant control circuit for hot melt adhesive assembly heater circuits and temperature sensors A redundant control circuit comprises a pair of heater circuits for heating a hot melt adhesive hose assembly to a predetermined temperature level, and a pair of temperature sensors which are used to sense the temperature of the hot melt adhesive hose assembly and t... | 02/19/2008 |
| 7328654 | Food warming apparatus In general, one embodiment of the invention is directed to apparatus for warming pre-cooked sandwich buns and the like to a desired holding temperature and then holding the buns at such holding temperature. The apparatus comprises a cabinet having at least one compa... | 02/12/2008 |
| 7324877 | Temperature control method and apparatus In a method of controlling the temperature of a target object by measuring to obtain detected temperatures at a plurality of measurement positions and controlling a processing device such as a heater such that each detected temperature will match the corresponding o... | 01/29/2008 |
| 7321738 | Fixing apparatus with current control to heater A fixing apparatus has a first heating member and a second heating member provided in a heating portion, and a current control unit which controls an AC current to be supplied to the heating portion, The current control unit executes a wave number control, on the AC... | 01/22/2008 |
| 7312420 | Switching device and system A heating assembly for a printing device includes a heating device configured to be energized or deenergized. A switching device includes a bimetallic element efficiently thermally coupled to the heating device and configured to deenergize the heating device in a de... | 12/25/2007 |
| 7311520 | Heat treatment apparatus The present invention is a thermal processing unit including: a heating-furnace body whose upper end has an opening; a reaction tube consisting of a single tube contained in the heating-furnace body; a gas-discharging-unit connecting portion formed at an upper porti... | 12/25/2007 |
| 7304270 | Integrated warmer drawer and warmer zone controls A range for heating foods having a body comprising a top surface, a first chamber located within the range, a second chamber located within the range, multiple heating elements arranged on the top surface for cooking food, an upper and lower heating element arranged... | 12/04/2007 |
| 7287980 | Ton unit heating saddle Embodiments of the invention provide methods, systems, and apparatus for delivering gas in a liquefied state at a controlled rate. The liquefied gas may be transported in ton cylinders by placing the ton cylinder on a transportation pallet. The transportation pallet... | 10/30/2007 |
| 7281670 | Wick-based delivery system with wick made of different composite materials A wick-based delivery system includes a container for holding a liquid that has an opening therein. A porous wick is positioned in the container so that a lower region of the wick is in contact with the liquid in the container and an upper region of the wick is expo... | 10/16/2007 |
| 7279661 | Heating apparatus A heating apparatus for a semiconductor producing system is provided, including a heater having a mounting face, an opposed back face, a first resistance heating element, a second resistance heating element provided along substantially the same plane as the first he... | 10/09/2007 |
| 7277654 | Electrophotographic power supply configuration for supplying power to a fuser A power supply control system for a fuser assembly in an electrophotographic apparatus includes a power supply and a fuser assembly. The power supply includes a first electrical path designated for a fuser assembly that operates at a first voltage and a second elect... | 10/02/2007 |
| 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 |
| 7256372 | Fluid-heating apparatus, circuit for heating a fluid, and method of operating the same A fluid-heating apparatus for heating a fluid and method of operating the same. The fluid-heating apparatus includes a heating element for heating a fluid surrounding the heating element and a control circuit connected to the heating element and connectable to a pow... | 08/14/2007 |
| 7248013 | Motor drive circuit A motor drive circuit is provided and includes: a PWM wave generation circuit for generating a PWM (pulse-width-modulated) wave having a high frequency, whose pulse width has been modulated, in response to a rotational frequency control signal used for driving a mot... | 07/24/2007 |
| 7230204 | Method and system for temperature control of a substrate A substrate holder for supporting a substrate in a processing system and controlling the temperature thereof is described. The substrate holder comprises a first heating element positioned in a first region for elevating the temperature of the first region. A second... | 06/12/2007 |
| 7230209 | Dual voltage infinite temperature control for an electric cooking appliance A cooking appliance includes a cooktop having a heating zone including an associated heating element, as well as a control element for setting a desired cooking temperature for the heating zone. When the control element is rotated from a home position across a tempe... | 06/12/2007 |
| 7223944 | Oven temperature control system An oven temperature control system for an oven cell having a top heating element with two separate heating conductors in a top portion of the oven cell, a bottom heating element with two separate heating conductors in a bottom portion of the oven cell, and a convect... | 05/29/2007 |
| 7223941 | Reduced-volume commercial space heating system and method for manufacturing same A heating system has been incorporated into the commercial space fixture of a plastic chair mat to provide a space-saving heating system. The material for the plastic mat is chosen based on its thermal and electrical properties to provide necessary safety and suppor... | 05/29/2007 |
| 7221862 | Control and method for operating an electric water heater A water heater control for an electric water heater operates according to at least one fixed hardware and/or software temperature limit and a variable software temperature limit. The control monitors a temperature of water in a tank of the electric water heater to d... | 05/22/2007 |
| 7214910 | On-chip power supply regulator and temperature control system An on-chip temperature control system includes a temperature sensor, which monitors a temperature of a chip, and a hysteresis comparator which checks whether the temperature is in an acceptable range. A reference adjustment circuit is responsive to the hysteresis co... | 05/08/2007 |
| 7209650 | Method and device for the evaporation of volatile compounds A method and a device to evaporate volatile substances such as aromatic substances and/or insecticides, in which the volatile substances are evaporated using electrical heating devices that heat a wick impregnated with the substance to be evaporated. The method and ... | 04/24/2007 |
| 7202449 | Brewing machine power management system and method A power management system for managing the power supplied to a plurality of warming elements in a brewing machine, so as to conform to pre-set power safety requirements. ... | 04/10/2007 |
| 7200327 | Electric heating device, in particular for a vehicle heating and/or air-conditioning apparatus Electric heating device comprising an electric radiator (10) for heating the air passing through it, said radiator comprising a casing (12), at least one resistive element mounted in the casing and constituted by at least one zigzag metal strip (22 | 04/03/2007 |
| 7196482 | PWM controller with automatic low battery power reduction circuit and lighting device incorporating the controller A controller for controlling a voltage applied to a load from a power source includes a square wave producing circuit for connection in the circuit with the battery and the lamp. The square wave producing circuit produces a variable duty cycle square wave for contro... | 03/27/2007 |
| 7196286 | Heating apparatus, auxiliary power supply apparatus, auxiliary power supply system, fixation apparatus, and moving picture formation apparatus A heating device of the invention comprises a heater, a main power supply, and an auxiliary power supply. The heater includes a main heating element which generates heat with power supplied from the main power supply, and an auxiliary heating element which has a res... | 03/27/2007 |
| 7192551 | Inductive heating process control of continuous cast metallic sheets An apparatus for rolling of a powder metallurgical metallic workpiece is provided having a feeding device, a first induction heating apparatus in operable communication with a first RF generator and at least a first hot rolling mill. A process control device monitor... | 03/20/2007 |
