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Match Document Document Title
8123517 Automatic device for the ignition and control of a gas apparatus and relative driving method  
An automatic system and method to provide the ignition and monitoring of a pilot flame for gas burners. The circuit includes a microcontroller that acts on at least one gas valve, a flame igniter,...
8066508 Adaptive spark ignition and flame sensing signal generation system  
A signal generation system for flame ignition and sensing. The ignition signal generation is adaptive for improving flame ignition while eliminating excess energy usage. High voltage signals for...
7927095 Time varying voltage combustion control and diagnostics sensor  
A time-varying voltage is applied to an electrode, or a pair of electrodes, of a sensor installed in a fuel nozzle disposed adjacent the combustion zone of a continuous combustion system, such as...
7690916 Method and apparatus for operating a gas-powered cooking and frying device  
A method and an apparatus for operating a gas-powered cooking device including an actuator for moving a closure disposed in the gas feed conduit of a burner to an open state and of igniting gas...
7380588 Heat pump control system and method of operating to provide automatic backup heating modes  
A heat pump type heating and air conditioning system includes a gas furnace or other auxiliary heat source and a thermostat and controller associated with the heat pump and the auxiliary heat...
7344373 Control method for gas burners  
The invention relates to a control method for gas burners for providing a gas-air mixture. According to the invention, the ionization signal is only used for setting the mixing ratio dependent on...
7090486 Control device for a burner and adjusting method  
The invention relates to a control system (15) for a burner and a setting-up procedure. The control system (15) controls the air ratio for combustion using the ionisation electrode (16). For...
7044729 Gas burner control for a bake oven  
The system (1) for controlling the combustion (7) of a cooking oven burner (2), comprises in combination a thermostat valve (3) with a rotary hand knob (4) and a non-electric temperature sensor (6)...
7008217 Safety device for boiler comprising a time delay protected by an electronic circuit  
A safety device for an industrial boiler (CHA) including electromechanical relays (REn, RS), which are connected in series in order to form an electromechanical safety chain (CH1), and at least one...
6953335 Method and apparatus for reducing nitrogen dioxide (NO2) emissions in a flueless heating appliance  
An apparatus for reducing nitrogen dioxide emissions in a flueless heating appliance or heater includes a heat-exchanger for exchanging heat contained in fumes produced by the combustion of a fuel...
6887069 Real-time combustion controls and diagnostics sensors (CCADS)  
The present invention is directed to an apparatus for the monitoring of the combustion process within a combustion system. The apparatus comprises; a combustion system, a means for supplying fuel...
6783355 Method for operating a gas burner  
According to the invention, the ionization signal is detected at a first point of time during full-load operation and during partial-load operation, and for this first point of time a first...
6676404 Measuring device for a flame  
A flame measuring device, in particular for use in a regulating device for a burner, includes an ionization electrode which is arranged in a flame region of the burner. An ac voltage is applied to...
6537059 Regulating device for a burner  
A regulating device for a burner regulates the air-gas ratio by way of an ionization electrode. In the event of dynamic changes in output preliminary control is implemented in accordance with the...
6527541 Regulating device for an air ratio-regulated burner  
During start-up a regulating device monitors the quality of the air ratio control in respect of time in accordance with the invention in that it observes the difference of a signal and comparison...
6509838 Constant current flame ionization circuit  
In a flame ionization sensor type gas combustion control apparatus, the sensor is provided with a power supply which will increase the voltage as contamination build up occurs on the in-flame...
6299433 Burner control  
A method and apparatus for controlling the operation of a burner apparatus are provided via the flame intensity of combustion reaction mixtures of oxidant and fuel gas.
6244857 Method and apparatus for optical flame control of combustion burners  
In accordance with the present invention, methods and apparatus to control the combustion of a burner are presented which overcome many of the problems of the prior art. One aspect of the invention...
6129542 Dual mode pilot burner  
A dual mode pilot burner having a control flame mode of operation and a pilot flame mode of operation, which dual mode pilot burner is suitable for controlling the fuel/air ratio of a main burner...
5971745 Flame ionization control apparatus and method  
An apparatus and process for controlling the operation of a gas burner, by monitoring and controlling the stoichiometry of the air and fuel gas during the burning process.
5969617 Flame ionization detector  
A flame ionization detector having a pair of spaced electrodes to which a DC voltage is applied and a flame produced between the electrodes by burning a gas whose composition is to be determined,...
5941236 Roofing kettle control apparatus  
Roofing kettle apparatus for heating asphalt includes a wheeled chassis mounting a vat and a heating system for heating the vat. The heating system includes a solenoid operated valve for...
5938424 Failure diagnosing apparatus for combustion systems  
An apparatus 9 for diagnosing failures in the combustion system to be installed in the regenerator of an absorption chiller is adapted to automatically prepare quantitative diagnosis data from a...
5924859 Process and circuit for controlling a gas burner  
A process for controlling a gas blower burner in which an ionization electrode sends an electrical variable derived from the combustion temperature or the lambda value to a control circuit, which...
5902099 Combined fan and ignition control with selected condition sensing apparatus  
An electric control is shown adapted for use with gas furnaces which controls fan motors, ignition controls and a gas valve based on inputs from a room thermostat, limit switches, a flame probe, a...
5899683 Process and device for operating a gas burner  
In a process for operating a gas blower burner, a control circuit detects an ionization signal Ui derived from an ionization electrode, and it adjusts the gas-to-air ratio to a lambda set point >1,...
5829962 Method and apparatus for optical flame control of combustion burners  
In accordance with the present invention, methods and apparatus to control or monitor the combustion of a burner are presented which overcome many of the problems of the prior art. One aspect of...
5813394 Cooking grill with moisture-insensitive flame detector  
The cooking grill has a moisture-insensitive flame detector capable of accurately determining the presence or absence of flame in the presence of moisture disposed adjacent to the burner. It also...
5775895 Combustion-state detecting circuit of combustion apparatus  
There is disclosed a combustion-state detecting circuit of a combustion apparatus installed in a combustion chamber, including: a flame detector that has a heat-emitting device for emitting heat on...
5722822 Flame sensor verification  
Method and apparatus are disclosed for checking the responsiveness of a circuit which senses the presence of a flame produced by a burner within a furnace. A programmed processor associated with...
5720604 Flame detection system  
A flame sensor senses the intensity of a pilot flame to determine whether main burner ignition has occurred in a gas furnace. The sensor includes a computer which is operative to trigger the...
5599180 Circuit arrangement for flame detection  
A circuit arrangement for flame detection for a transistor coil ignition system of a burner is disclosed. The transistor coil ignition system features a trigger stage which triggers a power...
5506569 Self-diagnostic flame rectification sensing circuit and method therefor  
An electric control is shown for gas furnaces which controls fan motors and ignition controls based on inputs from a room thermostat (32), a high limit control and an ignition control (14)...
5472336 Flame rectification sensor employing pulsed excitation  
A flame rectification type flame sensor circuit and method in which a generator injects periodic pulses of alternating voltage into a flame region, the voltage across the flame region being...
5472337 Method and apparatus to detect a flame  
An apparatus and method to qualify the condition of a flame body is disclosed, where such apparatus comprises a power source, an amplifier and sensor means, where said sensor means includes two or...
5439374 Multi-level flame curent sensing circuit  
A circuit for producing signals representative of at least two flame current levels is disclosed herein. The circuit includes two electrodes locatable in a flame, where a voltage potential is set...
5299931 Barbecue stove with easily operating charcoal-accessible grill  
A barbecue stove includes a grill having transverse grill rods and longitudinal grill rods mounted on a rim placed on an upper portion of a stove body for barbecuing use, and a slide grating member...
5256057 Fuel control circuit  
A multi-stage, fail-safe fuel control circuit monitors a flame which emits photons and is supplied with fuel through a valve to a burner. The fuel control circuit includes a flame scanner adjacent...
5195885 Self-proving burner igniter with stable pilot flame  
In a pilot light igniter for a burner, an inner tube for receiving fuel gas is concentrically positioned within an outer tube for receiving air in the annular space between the inner tube and the...
5073104 Flame detection  
A method and apparatus of detecting the condition of a flame having an emf by electrically conducting the emf generated by the flame as a signal to a sensor through an electrically isolated...
5049063 Combustion control apparatus for burner  
A combustion control apparatus for a burner comprising a detector for detecting an ionic current in a flame from the burner or light power of the flame, which changes in accordance with a change of...
4997361 Hot surface direct ignition system for gas furnaces  
A low cost hot surface ignition system particularly adapted for use in gas furnaces and the like, the system including low voltage control and timing circuitry effective to control a gas valve and...
4955806 Integrated furnace control having ignition switch diagnostics  
An integrated electronic control arrangement is disclosed in the illustrative environment of burner such as in a gas-fired furnace. The control incorporates a self-test feature which shuts down the...
4871307 Flame ignition and monitoring system and method  
A system and method for igniting and monitoring a pilot flame for a burning of waste gas, such as the waste gas of an oil refinery or drilling rig, includes a current which is pulsed periodically...
4672324 Flame protection circuit  
A flame control circuit becomes a flame protection circuit when the whole circuit is also controlled with respect to correct operation. A final output signal 32, "presence of flame", is supplied...
4662838 Fuel burner control system  
A control system including a valve for controlling the flow of fuel to a burner, a resistive heater element connected between first and second terminals and disposed for igniting fuel emanating...
4641043 Printed wiring board means with isolated voltage source means  
An ignition control device that utilizes a very sensitive flame rectification signal responsive circuit is disclosed. A printed wiring board arrangement is utilized with a careful arrangement of...
4622005 Ignition and flame monitoring device  
An ignition and flame monitoring device in which the absence of flame between a pair of sparking electrodes energizes the primary coil of a transformer through an ignition control circuit to step...
4581697 Controller for combustible fuel burner  
A microprocessor-based burner control apparatus includes an input stage adapted for controllably generating an input signal which is repetitively transitional between a first logic state and a...
4560343 Functional check for a hot surface ignitor element  
A hot surface ignitor element is functionally checked for continuity and operating temperature. This check is accomplished by initially energizing the hot surface ignitor element and then switching...
Matches 1 - 50 out of 101 1 2 3 >