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5616264 Method and apparatus for controlling temperature in rapid heat treatment system  
A temperature control method in a rapid heat treatment apparatus comprising simulatively heating dummy wafers in a process tube and previously detecting and grasping by temperature sensors a wafer...
5607014 Multi-staging of supplemental heat in climate control apparatus  
An improved heat pump system of the type having a thermostat capable of generating at least three stages of demand signals, outdoor and indoor heat exchange coils, at least one fan, a compressor,...
5593608 Temperature control method and apparatus for use in thermal processing equipment  
A method for controlling temperature in thermal processing equipment having a processing chamber containing members to be processed. The method comprises the steps of heating a plurality of zones...
5571433 Low temperature self clean for ovens  
A temperature control system for a self-cleaning oven and a method for operating in a clean mode for a self-cleaning oven are provided. The control system and the method allow for cleaning of the...
5545876 Apparatus and method for measuring electric power consumed in electrical heaters  
This Measuring Method of the electric power consumption of the Inverter Cooker enables automatic measurements of the electric power consumption for the keep-warm function, whether actual keep-warm...
5543602 Method for the storage and controlled supply of electric energy for discontinuous loads in steelworks  
Method for the storage and controlled supply of electric energy for discontinuous loads in steelworks and in particular for metal melting systems and rolling mills, the method comprising at least...
5539856 Electric coffeemaker with keep warm control responsive to the amount of coffee brewed  
An electric coffeemaker includes a first electric heater for heating water for brewing the coffee. A carafe is supported on a base portion of the housing of the coffeemaker. A second electric...
5538072 Method for preventing overshoot during heat pump defrost using memorized supplemental heater capacity from previous defrost cycle  
A method of controlling a current defrost cycle for an outdoor coil of a heat pump system, the heat pump system having a plurality of supplemental heating elements for heating an air stream...
5533568 Managing supplementary heat during defrost on heat pumps  
A method of controlling a current defrost cycle for an outdoor coil of a heat pump system, the heat pump system having a plurality of supplemental heating elements for heating an air stream...
5528018 Programmable load compensation method and apparatus for use in a food  
A method and apparatus for programmably controlling a cooking appliance. In addition to PREHEAT, COOK, and HOLD modes, the control is operable in a PROGRAM, SPECIAL PROGRAM and TEST mode. In...
5528016 Drying apparatus for use in photosensitive material processing system  
A drying apparatus for use in a photosensitive material processing system, which is designed so that nonuniformity of drying in a direction intersecting a belt-shaped photosensitive material,...
5521359 System for coordinating operation of microwave oven with a second appliance  
An electrical control scheme which permits operating power for a microwave oven and a second electrical appliance, such as a refrigerator, to be withdrawn from a single electrical outlet utilizes...
5451746 Temperature control system for a cooking oven  
A temperature regulating control unit and method of making the same are provided, the unit comprising a RTD temperature sensor, a unit for applying electrical signals to the sensor, and a...
5449883 Continuous heat treatment system of semiconductor wafers for eliminating thermal donor  
A heat treatment system is fabricated from a loading section, a heat treatment section and a outlet section integrated with one another, and the heat treatment section comprises a transfer...
5434387 Apparatus and a method for heating heat-recoverable articles with heater control to produce uniform and non-uniform temperature profile  
A device and a method for shrinking heat recoverable sleeves for covering cable joints comprising a heating device the interior of which has a plurality of independently energizable heating...
5396047 Electric heating unit with alternately heated surface areas  
A heating unit (1) for a cooking point has an outer heater (3) and an inner heater (4) located concentrically for separately heating an associated surface area (13, 14) of the overall heating...
5376773 Heater having heat generating resistors  
A heater apparatus includes an electrically insulative base plate and a plurality of independent resistors, extending along a length of the base plate, for producing heat upon electric...
5359178 Apparatus for detecting turn-on state of plural heat lamps of a thermal fixing unit of a copying machine  
In an apparatus for detecting turn-on state of plural heaters including an electric power source for supplying electric power to the plural heaters, a controller controls the electric power source...
5340964 Method and apparatus for monitoring electrical loads  
Plural electrical loads supplied with power from a single source are monitored to detect defective loads. Each load is periodically individually energized and current delivered by the source is...
5332028 Method and apparatus for controlling supplemental electric heat during heat pump defrost  
In a heat pump system having supplemental heat for application to the supply air during periods of defrost operation, a "cold blow" condition is avoided by turning on a supplemental heater and by...
5332883 Temperature control system for lamp annealer  
A system for controlling the temperature of a lamp annealer which system comprises a group of lamps for heating an article to be heated, a radiation thermometer for measuring the temperature of...
5325822 Electrtic, modular tankless fluids heater  
A tankless, flow-through electric water heater whose housing is designed for modular application, where serially connected modules define the path of the fluid being heated, in this case water,...
5321231 System for supplying power to an electrically heated catalyst  
An electrical system for supplying power to an electrical resistive heater that heats the catalyst of a catalytic converter. The electrical system includes an alternating current generator that...
5308957 Heater control system  
A control system for dual oven resistance heaters (BAKE, BROIL) has opposite sides of each heater connected to a common side of one of a pair of SPDT switching relays such that no current flows to...
5308958 Circuit for controlling energizing of heating elements  
A circuit for controlling the energizing of heating elements (13), including transistors (12) for controlling the energizing of the respective heating elements, energizing start time counter...
5293028 Cooktop appliance with improved power control  
A cooking appliance adapted for energization by a standard domestic household power supply employs a power control arrangement which accommodates electric resistive heating units designed for...
5286939 Inverted frustum shaped microwave heat exchanger using a microwave source with multiple magnetrons and applications thereof  
A microwave sourced heat exchanger in an inverted, truncated frusta-pyramidal or frusta-conical shaped configuration. A heat conductive medium is carried within microwave transparent pipes toward...
5285052 Control of electrically operated heating systems  
An electrically operable heating system which comprises a plurality of heating units has one or more control units for controlling the operation of each heating unit. Each control unit operates on...
5280158 Controller for electric heaters for internal combustion engine  
This invention pertains to a controller for electric heaters for preheating temperature sensitive components of internal combustion engines operating in very cold climates. The controller reduces...
5280422 Method and apparatus for calibrating and controlling multiple heaters  
Multiple heaters are calibrated and controlled by a microcomputer, and a multiplexer of this system. The heaters are sequentially sampled and resistance calculated from voltage and current...
5262618 Heat/process control  
A heat/process control is disclosed which takes advantage of the characteristics of some plastics in that they absorb medium wavelength infra-red heat waves in a comparatively wide range of...
5260548 Soldering system controlled power supply apparatus and method of using same  
An apparatus which provides selectively either constant power, constant current or constant voltage to the heating elements of the thermods. The soldering system power supply apparatus includes...
5259545 Apparatus for bonding a semiconductor die to a package using a gold/silicon preform and cooling the die and package through a monotonically decreasing temperature sequence  
An Au/Si die attach method for attaching a die to a package including preheating the package, melting Au/Si preform in the package cavity, scratching the die onto the package cavity to form a die...
5258601 Capillary rheometer with temperature controller for maintaining uniform temperature distribution of sample  
In a capillary rheometer including: a furnace comprising a plurality of furnace zones and having a sample bore with a capillary connected to the lower end thereof; a plurality of heaters for...
5254839 Oven for burning in electronics modules  
A stove for burning in electronic modules which incorporate a heatsink to radiate heat comprises for each module controlled electrical power supply circuits and locally controlled temperature...
5239164 Heater control apparatus for printers  
A heater control apparatus for use with a plurality of printers each having a heater, comprises a detection part for detecting occurrence of zero crossing of a voltage signal supplied from a power...
5235159 Control system, method of operating a heating apparatus and controlled heating apparatus  
A control system for regulating electrical power input to the resistive heating elements of an electric heating apparatus, including domestic cooking appliances, is provided which employs at least...
5231265 Method and apparatus for the transfer of electrical power to a balancer  
A method and apparatus is disclosed for transferring electrical power to a balancer 14 without the need for a physical connection between the balancer and the power source 16 or the controller 12...
5229577 Image forming apparatus utilizing an AC voltage control circuit  
An image forming apparatus having a built in AC voltage control circuit which enables the apparatus to be used in regions of the world having commercial power supplies with different supply...
5191226 Circuit for supplying plural loads via a SMPS and/or directly from an AC voltage source  
A very inexpensive and compact circuit arrangement having low electrical losses and which supplies a load with energy from an AC voltage source by means of a switch-mode power supply unit (22)....
5191191 Logic circuit and method for controlling the power supply of an ironing system  
An electrical logic circuit for incorporation in the common power supply system of an appliance including a plurality of electrical components which have intermittent power requirements comprises...
5181455 Electric grilling appliance  
An electric grilling appliance includes a pair of infrared radiation emitting heaters disposed within a housing on opposite sides of a food holder. The food holder includes a pair of metal food...
5122968 Apparatus and method for driving and controlling electric consumers, in particular heat plugs  
An apparatus for driving and controlling electrical loads, in particular glow plugs, is proposed which includes semiconductor switches which are assigned to the glow plugs and can be driven by a...
5120936 Multiplex heating system with temperature control  
A multiplex heating system for measuring and regulating the temperature of a plurality of heating elements is disclosed. The heating system includes a plurality of heating elements, which also...
5105067 Electronic control system and method for cold weather garment  
A microcomputer-based, closed-loop electronic temperature control system and method for an electrically heated cold weather garment having a plurality of independently heated zones. In one...
5079410 Power control system adaptable to a plurality of supply voltages  
An electronic control arrangement for controlling the power applied to an electrical load, in which the electronic control includes in its memory a predetermined power control parameter look-up...
5053604 Process and device for control of electrical resistors, particularly for an industrial furnace  
A process and device for controlling heating of a furnace by means of electrical resistors using switching devices, particularly thyristors, associated with the electrical resistors, and whose...
5023430 Hybrid electronic control system and method for cold weather garment  
A hybrid, open-loop electronic temperature control system and method of heating for an electrically heated cold weather garment having a plurality of independent heating zones. In one embodiment...
5020127 Tankless electric water heater  
An instantaneous fluid heater having a fluid heating chamber including therein a plurality of electrical heating elements. The supply of electrical power to the respective ones of the electrical...
5015826 Power adjustment device for electric power systems, in particular for electric power systems with electric ovens  
This power adjustment device for electric power systems, in particular for electric power systems with electric ovens, has the aim of optimizing the electric absorption of the system by...