| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 431018000 | TIMER, PROGRAMMER, RETARDER OR CONDITION RESPONSIVE CONTROL | 77 |
| 20080220384 | AIR QUALITY SENSOR/INTERRUPTOR - An air quality sensor and interrupter system includes an air quality sensor to measure the air quality around a gas appliance and an appliance shut-off device to turn off the gas appliance in response to a signal from the sensor indicating unsafe air. An exhaust can also be activated to remove the unsafe air. Unsafe air can be indicated by a measurement of 18.5% or less oxygen in the air. If the sensor fails, an alarm can alert the user and the appliance shut off until the sensor is replaced or repaired. A bypass allows the user to keep the appliance turned on, but only for a limited amount of time. The user can keep utilizing the bypass to keep the appliance turned on for extended periods of time. | 09-11-2008 |
| 20120288806 | Flame Sense Circuit for Gas Pilot Control - A flame sense circuit for a gas burner control employs a flame rod for flame rectification. An AC source applies an AC wave through a capacitor to the flame rod, and the flame rod is also connected via a resistive voltage divider to a DC voltage source. A voltage divider node is connected to a voltage follower, which impedance-matches an ADC input of a microprocessor controller. The flame sense circuit senses conditions of no-flame, and flame rod in contact with or leaking to ground, and when flame is present can quantify sensed flame as good, weak and marginal. | 11-15-2012 |
| 20090325112 | CATALYST DEGRADATION PREVENTING APPARATUS AND LOW NOx COMBUSTION APPARATUS - Provided is a catalyst degradation preventing apparatus, which is for a catalyst device containing a catalyst component that comes into contact with gas to chemically change the gas, in which the catalyst device is provided with a poisoning substance removing device on a primary side thereof, for removing a poisoning substance which is contained in the gas and adsorbs to the catalyst component or forms a compound with the catalyst component. Further, the poisoning substance removing device and the catalyst device are provided with an interval placed therebetween and to be exchangeable with each other, or a carrier of a component that adsorbs to the poisoning substance of the poisoning substance removing device or forms a compound with the poisoning substance and a carrier of a catalyst component of the catalyst device are integrally formed so as to be exchangeable. According to the apparatus, the decrease in performance of the catalyst device can be prevented, and the effect of low pollution can be retained for a long period of time. | 12-31-2009 |
| 20090047610 | Remote control linearly regulated fuel valve - A linearly regulated fuel valve system is provided that includes a slotted conical rotatable plug component that is received in a conical cavity formed in a valve body which can be remotely controlled. The slotted plug serves to establish multiple flow paths through the valve body when rotated so as to align an opening formed in the cavity wall with an orifice formed in the side of the plug. The rotational orientation of the plug with respect to the wall and the orifice in the plug is set by a latch element permitting graduated stepwise adjustment settings such as high, medium, low and shut off of gas flow through the valve. Accordingly, the unique system may be adjusted by remote controlled to a wide range of settings by a single cone having a constant channel for fuel flow. | 02-19-2009 |
| 20100136493 | LOW NOx COMBUSTION APPARATUS - Prvided is a catalyst degradation preventing apparatus of a catalyst device containing a catalyst component that comes into contact with gas to chemically change the gas, including a burner for burning a fuel by combustible air to generate a gas containing nitrogen oxides by combustion, an endothermic device for absorbing heat from gas, a catalyst device having a catalyst component for decreasing nitrogen oxides contained in the gas after passing through the endothermic device, and a first poisoning substance removing device for removing a poisoning substance containing at least sulfur, which is contained in the fuel and adsorbs to a catalyst component or reacts with the catalyst component to form a compound. According to the apparatus, the decrease in performance of the catalyst device is prevented, and the effect of decreasing pollution can be retained over a long period of time. | 06-03-2010 |
| 20110244407 | COMBUSTION CONTROLLING DEVICE - Two controlling devices, namely a combustion controlling device controlling the combustion of a combustion furnace, and a safety controlling device checking the operation of the devices wherein the operations are controlled by the combustion controlling device. This enables safer control of combustion because if there is a fault in either the combustion controlling device or the safety controlling device, a process can be performed by the other device to stop the combustion. Additionally, because the controlling device for controlling the structural elements that control the combustion in the boiler system and the controlling device for operational checks of the outputs from those structural elements are separate, if there is a failure in any of the structural elements or controlling devices, that failure can be detected reliably, enabling safer control of the combustion. | 10-06-2011 |
| 20100183992 | DEVICE FOR LIMITING THE EXHAUSTING OF COMBUSTION FLUE GASES AT THE INLET OF A FURNACE FOR REHEATING STEEL PRODUCTS - The invention relates to a device for limiting the combustion fume exhaust towards the outside of a continuous furnace, especially a tunnel furnace, for reheating iron and steel products, especially slabs, at the opening located at the entrance of the furnace. The first row of burners consists of at least two burners ( | 07-22-2010 |
| 431020000 | Of or by exhaust damper or exhaust pump | 2 |
| 20090191495 | Apparatus and method for controlling a damper in a gas-fired appliance - A damper mechanism for a gas-fired appliance is disclosed. The damper mechanism is mechanically operated in response to changes in pressure within a portion of the appliance. Changes in gas pressure operate to displace a diaphragm, thereby moving a linkage attached to a flue damper, such that the damper can be moved between open and closed positions. An interim damper control activation arm can pivot in response to movement of the linkage to actuate electrical switches, which act to close a magnetic pilot valve when the damper is in a partially-opened or partially-closed position. | 07-30-2009 |
| 20110244408 | HEATER - A heater including a heat dump opening and a heat dump cover moveable between an open and a closed position to selectively block flow of fluid through the heat dump opening. The heat dump opening is formed in the top of the housing, and the heat dump cover is biased toward the open position. The cover moves to an open position in response to a sensed preselected limit temperature to vent excessively heated air to ambient to prevent damage to the heater and a duct system and a building to which the heater may be connected. Air escaping the heater via the heat dump opening may cause replacement air to be drawn into the heater to cool the heater, including electrical components of the heater located near an inlet and an outlet of the heater. | 10-06-2011 |
| 431022000 | By sensing of gas leakage, flashback or escaped flame | 3 |
| 20090004612 | Gas-Fired Heating Appliance Having a Flammable Vapor Sensor Control Device - A gas-fired heating appliance includes a burner, a gas valve module for supplying a fuel gas to the burner, a power module for applying a voltage to the gas valve module, and a flammable vapor sensor module for detecting a flammable vapor. The flammable vapor sensor module interrupts the voltage to the gas valve to shut off the gas valve and the burner when the flammable vapor module detects the presence or a predetermined concentration of flammable vapor. The voltage of the power module is applied to the gas valve module through the flammable vapor sensor module. The voltage to the gas valve module is interrupted if the flammable vapor sensor module is short-circuited. This arrangement is tamper-resistant to promote a safe operation of the gas-fired heating appliance. | 01-01-2009 |
| 20100330515 | GAS SHUTOFF DEVICE AND ALARM-COMPATIBLE SYSTEM METER - An object of the invention is to appropriately control the use limit function of an appliance according to the concentration level of CO gas. A gas shutoff device is made up of a flow rate registration unit | 12-30-2010 |
| 20090061367 | APPLIANCE HAVING A SAFETY STRING - A gas-fired appliance is disclosed that includes a gas valve powered by a power source. A plurality of switching units, each responsive to a condition of the appliance, are arranged in series between the gas valve and the power source. Each switching unit includes an emitter, such as an emitter of an optocoupler, that is used to monitor the opened or closed status of a switch in the switching unit. When at least one switch opens, power to the gas valve is reduced preventing the gas valve from operating. However, because this reduced power is provided to each subsequent switching unit, each optocoupler can be monitored regardless of the opened or closed status of previous switching units. As such, one or more open switches can be detected simulataneously. | 03-05-2009 |
| 431023000 | Of means protecting burner component from combustion heat | 1 |
| 20120208139 | HIGH CAPACITY FUEL-FIRED LIQUID HEATING APPARATUS - A fuel-fired high capacity liquid heating appliance, representatively a boiler or a water heater, has a fluid heat exchanger extending around a combustion chamber into which first and second fuel burners extend, the first and second burners respectively having associated blowers for supplying combustion air thereto. Illustratively, the combustion chamber is oval-shaped, with the burners extending into opposite ends the combustion chamber If one of the burners is not firing while the other burner is firing, a control system starts the non-firing burner's blower, to protect it from overheating by the firing burner, if the control system senses an excess temperature in the non-firing burner. The heat exchanger comprises a series of fluid receiving tubes extending between baffle-free header structures iteratively sized to equalize fluid flow rates through the heat exchanger tubes over a wide flow rate range. | 08-16-2012 |
| 431028000 | Actuation sequence of electric feed heater and feed flow controller or igniter | 1 |
| 20120094240 | HOT SURFACE RE-IGNITION CONTROLLER - A hot surface re-ignition controller for use with a transformer for powering a hot surface igniter in a gas appliance. The design includes flame detection circuitry for interfacing with flame detecting electrodes and is completely implemented in analog circuitry to provide reliable operation in harsh environments. | 04-19-2012 |
| 431029000 | Control of purger, of scavenger or of combustion start-up delay period | 2 |
| 20120258410 | OXY-HYDROGEN FUEL INTEGRATION AND CONTROL SYSTEM - An oxy-hydrogen generator control system may include an oxy-hydrogen generator for fuel production on demand. A controller may determine if ignition is present in a burner assembly prior to generating the oxy-hydrogen fuel and providing it to the burner assembly. The controller may also purge system lines of any residual oxy-hydrogen fuel when heating is no longer needed. | 10-11-2012 |
| 20090017405 | Method for Producing a Hot Gas By Oxidation Comprising a Delay Prior to Scavenging - The invention relates to an optimized method for producing a hot gas by oxidation of an active material having an oxidized form and a reduced form using a rotary reactor or a simulated-rotation reactor. According to the invention, the production cycle comprises a flow interruption between an oxidation stage and a scavenging stage. | 01-15-2009 |
| 431033000 | Of extinguishing means | 4 |
| 20100173254 | METHOD FOR EXTINGUISHING A CANDLE AT TIMED INTERVALS USING A COMBUSTIBLE MATERIAL - A method for extinguishing a candle at timed intervals using a combustible material is disclosed. In one exemplary embodiment, the method includes: utilizing a combustible composition adapted for application to a wick segment; utilizing a combustible first wick segment; coupling a combustible second wick segment to the combustible first wick segment; placing the combustible second wick segment adjacent to the first wick segment; and configuring the combustible second wick segment to, as the combustible first wick segment, once ignited, burns down to the combustible second wick segment, interrupt and slowly self-extinguish the burning of the first wick segment. The candle wick is configured to be relit, post extinguishment, without having to physically remove a non-combustible barrier. A combustible composition also is disclosed. A candle further is disclosed. | 07-08-2010 |
| 431035000 | By candle length or fuel quantity | 3 |
| 20090233249 | Self-extinguishing candle - A self-extinguishing candle having at least one layer of dry fire-suppressant material is disposed adjacent to the candle wick. The fire-suppressant material extinguishes a flame burning down the wick on contact. Providing the candle with layers of the fire-suppressant material between layers of the candle body allows the candle to self-extinguish then be relighted after removal of excess fire-suppressant material. | 09-17-2009 |
| 20080241771 | Self-extinguishing relightable wick for use on candles and the like - A self-extinguishing wick for use in a candle has a flame extinguishing compound contained in an area within the self-extinguishing wick. The flame extinguishing compound produces a blowing reaction, and that blowing reaction extinguishes a flame on that self-extinguishing wick. | 10-02-2008 |
| 20090280446 | Candle holder with self-extinguishing flame device - A self-extinguishing candle flame apparatus is provided, the apparatus comprises: a base; a post having opposing ends, at least a portion of the first end of the post is attached to the base; a pliable wax coil having opposing ends, at least a portion of the wax coil being situated upon the base, the wax coil forming a candle, the candle comprising an elongated wick being situated within the wax coil, at least a portion of the wick protruding from one end of the wax coil; and a self extinguishing device comprising at least two sections that form a clamp, at least a portion of each of the two sections being attached to a spring, each of the sections having opposing ends, the first end of each of the two sections comprises a head and the second end of each of the two sections comprises an arm, the first and second sections being connected at a joint, during a closed position, each of the heads contact one another and forms an extended rim with side walls and an aperture therebetween designed to receive a portion of the wax coil, the extended rim with the side walls forming a height that when the candle burns down within the aperture, the flame is extinguished by operation of oxygen deprivation. | 11-12-2009 |
| 431036000 | Of or by burner feed supply heating structure | 4 |
| 20130078583 | Heat Recycling System for a High-Temperature Exhaust Gas - A heat recycling system for a high-temperature exhaust gas contains a body having a combustion space, at least one burning device, and a storing device; characterized in that: the combustion space is connected with an exhaust pipe; the burning device is coupled with a heat recycling blower and a gas control valve; the storing device is secured on a distal end of the exhaust pipe and is comprised of a second control valve, a first store tank, and a second store tank; the second control valve is disposed on the exhaust pipe of the body and includes two output ends which connect with a gas guiding tube and a second guiding tube respectively; the first store tank is coupled with the gas guiding tube and is connected with a first check valve and a second check valve, the gas check valve is coupled with a first gas-exhausting blower. | 03-28-2013 |
| 20090274985 | POWDERED FUEL CONVERSION SYSTEMS AND METHODS - The burner preferably exclusively burns substantially explosible solid fuels and preferably has instant ON-OFF thermostat control, wastes no energy preheating the enclosure or external air supply, achieves stable combustion the moment the powder-air mix is ignited in our burner, is used in the upward vertical mode except for oil burner retrofits, burns a solid fuel in a single-phase regime as if it were a vaporized liquid or gas, is designed to complete combustion within the burner housing itself rather than in a large, high temperature furnace enclosure which it feeds, has an ultra-short residence time requirement, is a recycle consuming burner with self-contained management of initially unburned particles, is much smaller, simpler and lower cost, has a wider dynamic range/turndown ratio, is more efficient in combustion completeness and thermal efficiency, and operates with air-fuel mix approximately at the flame speed. | 11-05-2009 |
| 431037000 | By controlling admittance of feed to structure | 1 |
| 431038000 | By pressure of feed in structure | 1 |
| 20080268388 | Device for Controlling the Delivery of a Combustible Gas to a Burner Apparatus - A device for controlling the delivery of a combustible gas to a burner apparatus is provided. The device includes a main pipe for delivery of the gas in which are disposed first and second servovalves in cascade with each other, with respect to the direction of flow of the gas. The servovalves include respective valve seats associated with corresponding shut-off means with diaphragm control for the opening of the seats. The first and second servovalves include respective first and second control solenoid valves with electromagnetic operating means to control the opening/closing of the corresponding servovalve. The solenoid valves are arranged to act to open/close the pipes of respective servo-assisted control circuits, so as to control indirectly, by way of the diaphragm control, the respective shut-off means of the corresponding servovalve the pipes of the control circuit placing the main pipe in fluid communication with respective control chambers of the servovalves. | 10-30-2008 |
| 431041000 | Supply of heat to heating structure controlled | 1 |
| 20130052595 | Indirect Fired Heater With Inline Fuel Heater - A heater and a method of its use are configured for use at cold operating temperatures. The heater has a supply line for transporting a volume of fuel between a fuel tank and burner. An inline heater is supplied in a supply line for the burner, and preferably is located upstream of a fuel filter for filtering the fuel so as to prevent wax condensation in the filter. The heater also has a return line that normally returns unused fuel from the burner to the heater, hence reducing the volume of fuel that needs to be heated by the heater and reducing system power requirements. The heater may be thermostatically controlled to maintain the temperature of the heated fuel to a value that is at or above a temperature required for good fuel atomization but below a flashpoint of the fuel. A valve is provided in the return line to permit diversion of the returned fuel to the fuel tank during a purge operation at initial startup. | 02-28-2013 |
| 431042000 | Sensor of first burner controls second burner, e.g., pilot and main, etc. | 1 |
| 20100075264 | Redundant Ignition Control Circuit and Method - A redundant ignition control system and method for gas burning appliances is provided. The system utilizes a main processor and a supervisory processor to provide the redundant, fail safe operation of both the pilot valve and the main gas valve of the appliance. Three switching elements under the control of the two processors, as well as the use of high pass filters to block DC from the gas control valves provide redundant, fail safe operation. The use of variable duty cycle or frequency pulse width modulated signals enables use in low power applications and ensures system safety. Inclusion of a gas valve verification sequence, ignition sequence, burner monitoring sequence, and heat shutdown and standby sequences ensures safe, low power operation during normal control, and fail safe operation upon the failure of any component of the system. | 03-25-2010 |
| 431060000 | Of sequential operation of plural burners, e.g., pilot and main, etc. | 2 |
| 20130040253 | FURNACE, A HIGH FIRE IGNITION METHOD FOR STARTING A FURNACE AND A FURNACE CONTROLLER CONFIGURED FOR THE SAME - The disclosure provides a controller for a multistage gas furnace, a multistage gas furnace and computer readable medium for performing a method to operate a furnace. In one embodiment, the controller includes: (1) an interface configured to receive a heating call and (2) a corrosion reducer configured to ignite the gas furnace at a high fire operation based on if an indoor circulating fan of the gas furnace is active. | 02-14-2013 |
| 20120045725 | COMBUSTOR - Provided is a combustor that is made compact and achieves NOx reduction. In the combustor ( | 02-23-2012 |
| 431062000 | Of diverse feed or feed rate in starting, e.g., enriching fuel mixture in starting, etc. | 1 |
| 20110027731 | Combustion Method and Apparatus - A burner has a port facing into a combustion chamber along an axis. A secondary fuel injector structure has secondary fuel injection ports that face into the combustion chamber at locations spaced radially outward from the burner port. A tertiary fuel injector structure has tertiary fuel injection ports that face into the combustion chamber in directions perpendicular to the axis at locations spaced axially downstream from the secondary fuel injection ports. | 02-03-2011 |
| 431066000 | Sensor of electrical condition or temperature of electrical igniter controls fuel feed | 6 |
| 20100086885 | CONTROL SYSTEM FOR THE IGNITION OF A GAS BURNER - A control system for the ignition of a gas burner that includes an electromagnetic valve having a first coil and a second coil, the activation of the first and second coils controlling the flow of gas through the electromagnetic valve. An incandescent element which is designed to be heated until it reaches the gas combustion temperature of the gas delivered to the burner is disposed electrically in series with the first coil, the incandescent element and first coil forming a first branch that is electrically parallel to the second coil. | 04-08-2010 |
| 20090253086 | Burner Arrangement - The invention relates to a burner arrangement comprising a burner plate ( | 10-08-2009 |
| 20100159408 | Single Micro-Pin Flame Sense Circuit and Method - A flame sense circuit and method utilizing only a single pin of a microcontroller is provided. A flame sense circuit is used to vary the charge on a capacitor from a logic high indicating no flame to a logic low when a flame is detected. The microcontroller changes the state of the pin coupled to this circuitry from a high impedance input to detect when the capacitor is discharged indicating the presence of flame, to a logic high output to recharge the flame sense capacitor. Once this charging has been accomplished, the microcontroller again changes the status of the pin to a high impedance input and verifies that the capacitor has been charged. This pin is monitored to verify that the flame sense capacitor is again discharged to indicate the continued presence of flame. This process is repeated to ensure flame continues to be present during a combustion event. | 06-24-2010 |
| 20110151387 | IGNITION CONTROL WITH SAFEGUARD FUNCTION - An ignition control and method are provided for overseeing an ignition process on a fuel-fired appliance having a fuel burner, a fuel flow control valve, an ignition source, and a flame detection device. A primary processor initiates the ignition process, monitors the flame status signal and terminates the ignition process in the presence of a flame status signal indicating no flame after a specified period of time following the initiation of the ignition process. A secondary processor monitors the flame status signal independently of the primary processor and terminates the ignition process in the event that the primary processor fails to terminate the ignition process in the presence of a flame status signal indicating no flame after a specified period of time following the initiation of the ignition process. The primary and secondary processors may each have the functional capability to monitor the operation of the other. | 06-23-2011 |
| 20090317755 | Hot Surface Igniter Adaptive Control Method - An adaptive gaseous fuel ignition control method for use in consumer and commercial appliances that reduces stress on and increases the life of a hot surface igniter without resulting in a failure to ignite condition is provided. The method provides a preheating period, a full temperature period, and a trial for ignition period. The preheating period gradually increases the power applied to reduce the stress resulting therefrom. Once a gas valve has been commanded open, the controller monitors the time for ignition of the gaseous fuel. If the time is longer than a threshold, either the applied power or the period of time during which the power is applied is increased to shorten the time. If, however, the ignition period is shorter than the threshold, either the power applied or the period of time during which the power is applied before commanding the gas valve open is lowered or shortened. | 12-24-2009 |
| 20090061368 | APPLIANCE HAVING LOAD MONITORING SYSTEM - An appliance is disclosed that includes an electrically operated load such as a gas-fired appliance having an electrically operated gas valve. A current sensing circuit is configured to sense the current provided to the load. Based upon this sensed current, it is determined whether the load is energized. Methods are also disclosed for monitoring the status of a current sensing circuit to determine the actual operating state of the load. | 03-05-2009 |
| 431069000 | Shutdown by sensed absence of flame in proving period | 2 |
| 431071000 | Igniter cut off when flame establishment proved | 2 |
| 20080206692 | Device for remotely controlling ignition of a gas appliance by transmitting and receiving RF waves - An ignition control device including a controller section and a remote control section for a gas appliance (e.g., a gas stove or a gas water heater) is disclosed. A signal communication between the controller mounted on a burner of the gas appliance and the remote control section held by the hand is done by transmitting and receiving RF waves therebetween. The invention can correctly ignite the gas appliance and audibly inform a user of any ignition failures or abnormal conditions. | 08-28-2008 |
| 20100196834 | Oven Burner Flame Sensing Apparatus - Apparatus for sensing the presence of a flame issuing from the flow of fuel through an elongate oven burner comprises an electrical current sensor immersed in a flame having carbon atoms which support such current. The fuel is ignited by a spark igniter. Should no flame exist after a predetermined time interval, or if the flame is extinguished, the supply of fuel to such burner is terminated and the spark igniter is disabled. | 08-05-2010 |
| 431072000 | Of igniter and feed controlled sequence | 8 |
| 20100086886 | METHOD AND APPARATUS FOR OXY-FUEL COMBUSTION - The invention comprises a method and apparatus for burning combustible fluids, such as biofuel byproducts and feedstocks, which are difficult to burn in a stable and clean manner. The method includes preheating the combustion zone prior to initiating flow of the combustible fluid and maintaining a minimum oxygen concentration in the oxidant gas. | 04-08-2010 |
| 20090104573 | Gas burner system - A gas burner system includes a power supply device, one or a number of gas burners, one or a number of gas valve for controlling the fuel gas passage(s) of the gas burner(s), one or a number of control device each having an operating device for inputting a command signal, a microprocessor for receiving the command signal from the operating device and outputting a corresponding control signal, a valve control device for driving the gas valve(s) subject to the control signal from the microprocessor, an ignition induction electrode located on each gas burner at one side, and one or a number of igniter and inductor combination device for providing a high voltage current to the ignition induction electrode at each gas burner subject to the control signal from the microprocessor to cause the ignition induction electrode at each gas burner to discharge sparks for burning the discharged fuel mixture so that the igniter and inductor combination device stops from providing the high voltage current when received a feedback flame signal from the ignition induction electrode and sending the feedback signal to the microprocessor. | 04-23-2009 |
| 20100248170 | Controlling a Gas-Fired Heater - The present invention provides a system, method and apparatus for controlling a gas-fired heater connected to a fuel source via a fuel source valve that includes one or more power sources, a temperature sensor, a pilotless igniter disposed within the gas-fired heater, a flame sensor disposed within the gas-fired heater and a controller electrically connected to the one or more power sources, the temperature sensor, the pilotless igniter, the flame sensor and the fuel source valve. The controller turns the pilotless igniter on for a first time period and opens the fuel source valve whenever the temperature sensor indicates that a temperature is less than or equal to a low temperature setting. The controller also closes the fuel source valve whenever the temperature sensor indicates that the temperature is greater than or equal to a high temperature setting or the flame sensor indicates that a flame has gone out. | 09-30-2010 |
| 431073000 | By timer or retarder | 2 |
| 20110207065 | RAPID GAS IGNITION SYSTEM - An ignition control system for an appliance is disclosed. The appliance includes a gas burner, a user actuable valve for controlling a flow of fuel to the burner and an electrical resistance igniter for igniting fuel at the burner. The system includes a user actuable control interface having an off state and an on state, coupled to the valve operative to control the valve and provide a control signal indicative of the state of the control interface. The system also includes a controller having a timer circuit responsive to the control signal and a boost circuit coupled to the timer circuit. The timer circuit selectively activates the boost circuit for a predetermined period of time. A first DC power supply is selectively coupled to the igniter to provide power to the igniter through the boost circuit. A second DC power supply is coupled to the igniter and control interface. | 08-25-2011 |
| 20090246720 | SIGNAL CONDITIONER FOR USE IN A BURNER CONTROL SYSTEM - A signal conditioner for use with a controller and a burner receives an input signal from the controller. A conversion circuit generates a primary output signal corresponding to the input signal to control the burner. The signal conditioner also includes a delay circuit. The delay circuit overrides the primary output signal generated by the conversion circuit and substitutes a delay signal to the burner at a predetermined level for a predetermined time. The signal conditioner may also include a temperature override circuit, which receives a temperature of air from the burner. If the temperature is above or below established limits, the temperature override circuit substitutes a temperature override signal to the burner. | 10-01-2009 |
| 431074000 | Combustion zone sensor controls igniter | 3 |
| 20130078584 | WOOD BURNING FIREPLACE ASSEMBLY WITH AUTOMATIC IGNITER - A fireplace assembly having a firebox, an igniter assembly coupled to the firebox and containing a heating element, a first portion of the igniter assembly extending through an aperture in a firebox wall, the igniter assembly having a first connector coupled to the heating element and coupleable to power source, and having a second connector coupleable to an air source and positioned to provide air flow through the igniter assembly over the heating element and into the firebox. A controller is operatively coupled to the igniter assembly and a temperature sensor. The controller controls operation of the heating element, the temperature sensor, and the air flow through the igniter assembly, and can activate and deactivate the igniter assembly based upon the temperature within the firebox. | 03-28-2013 |
| 20130022932 | FLARE PILOT DETECTION AND IGNITION SYSTEM - A system having a flame rod assembly for operation in a high temperature pilot burner. The assembly is designed for operation in temperatures from about −40 to 1100 degrees C. The system may operate in inclement weather involving high speed winds and significant amounts of moisture and rain to hurricane storm force levels and rates. The system incorporates an electrical apparatus which may provide flame sensing and ignition via the flame rod assembly incorporating a quick drying insulator around a rod of the assembly to ensure proper operation of the electrical apparatus. | 01-24-2013 |
| 20110086319 | FUEL GAS IGNITION SYSTEM FOR GAS BURNERS INCLUDING DEVICES AND METHODS RELATED THERETO - Featured is a gas burner ignition system using miniaturized hot surface igniters of various types configurations and material systems: The ignition system includes an electronic microprocessor which controls both the igniter operation and all functions of the ignition system. | 04-14-2011 |
| 431075000 | By combustion or combustion zone sensor | 22 |
| 20100112499 | SAUNA STOVE HEATING METHOD AND STOVE - A sauna stove and a method to be used for producing heat needed for bathing, the sauna stove comprising one or more reception elements ( | 05-06-2010 |
| 20090092937 | Electronic Gas Control System - An electronic gas control apparatus including a variable flow valve, an igniter, a flame sensor, and an electronic controller is provided. The valve has a flow range that equals or exceeds a required flow range for any one of the types of gas suitably combusted by the burner. The electronic controller is operably coupled to each of the valve, the igniter, and the sensor. The electronic controller is configured to activate the igniter, to receive a flame status signal from the sensor, and to recognize a position of the valve when the flame status signal indicates a flame at the burner. As such, the electronic controller is calibrated for the gas, line-pressure, jet and burner configuration being used. | 04-09-2009 |
| 20100330516 | FLAME SCANNING DEVICE AND METHOD FOR ITS OPERATION - A flame scanning device is provided for monitoring a flame. The device includes a radiation collection and transmission element for collecting flame radiation and transmitting it to detection elements, a flame sensor element for the detection of radiation and conversion of the detected radiation into electrical signals, and an evaluation unit for the conversion of the electrical signals into flame parameters. The flame sensor element can include at least two individual detectors each with an individual central detection wavelength and a width of observation window, respectively. The individual central detection wavelength and the width of observation window are not overlapping and are covering individual regions of interest of the spectrum of radiation. | 12-30-2010 |
| 20080318173 | Heating Burner - The invention relates to a heating burner, in particular a heating burner for the combustion of long chain liquid fuel. The heating burner according to the invention comprises a control device which controls its actuators, namely an ignition device for igniting the fuel, an air delivery device for delivering combustion air and a fuel delivery device for delivering fuel to the ignition device, in such a way that the fuel is ignited at periodically recurring ignition intervals and burns for an adjustable combustion interval, wherein the heating capacity can be regulated at the interval concerned for the duration of the combustion interval by the control device. | 12-25-2008 |
| 20080241772 | Device for the Multifunctional Control of the Supply of a Combustible Gas to a Burner Apparatus - A device for the multifunctional control of the supply of a combustible gas to a burner apparatus is disclosed and comprises, in a main gas supply duct, an electromagnetically controlled electrovalve with an on/off function, a flow regulator downstream of this electrovalve and comprising a valve seat, a respective shutter associated therewith and controlled by a reversible electric motor, such as a step-by-step motor, for the control of the displacement of the shutter with respect to the valve seat. In the device the intercepted condition of the valve seat is detected and a signal correlated with the detected intercepted condition of the valve seat is generated this signal being adapted to supply the corresponding consent for the control to open or close the electrovalve, in order to enable or prevent the passage of gas through this duct in the phases of ignition and extinction of the burner respectively. | 10-02-2008 |
| 20100015559 | Micro-Pilot For Gas Appliance - A micro pilot for a gas hot water heater is provided. The micro pilot provides a flame that is substantially smaller than a typical pilot in a hot water heater during standby operation of the burner. Just prior to allowing gas to flow to the burner upon a call for heat, a pilot flame of sufficient size to ensure ignition of the burner is provided. In one embodiment this larger pilot flame is produced by providing an additional amount of bleed gas to the pilot to increase flame size. In another embodiment, bleed gas is provided to a separate booster pilot, which is ignited by the micro pilot. The flame from the booster pilot is then used to ignite the main burner. This design allows for the micro pilot to be positioned closer to the flame trap of a flammable vapor resistant hot water heater to ensure smooth ignition of any such vapor. | 01-21-2010 |
| 20100304317 | CONTROL VALVES FOR HEATERS AND FIREPLACE DEVICES - In certain embodiments, a control valve assembly for gas heaters and gas fireplace devices includes a housing. The housing can define an inlet for accepting fuel from a fuel source, a first outlet for delivering fuel to an oxygen depletion sensor, and a second outlet for delivering fuel to a burner. The assembly can include a valve body configured to selectively provide fluid communication between the inlet and one or more of the first outlet and the second outlet, and can include an actuator configured to move the valve body relative to the housing. The actuator can be configured to transition between a resting state and a displaced state. The assembly can include an igniter that includes a sensor, the igniter electrically coupled with an electrode and configured to repeatedly activate the electrode when the sensor senses that the actuator is in the displaced state. The assembly can include a shutoff valve electrically coupled with the oxygen depletion sensor and configured to operate in response to an electrical quantity communicated by the oxygen depletion sensor. | 12-02-2010 |
| 20100285414 | FUEL SUPPLY DEVICE - A fuel supply device for generating mixed gas in which air and/or oxygen are mixed into fuel gas and supplying the mixed gas to a burning appliance comprises a flow rate control module disposed in a supply path of the fuel gas and flow rate control modules disposed in supply paths of the air and/or the oxygen. The flow rate control module includes a thermal mass flow rate sensor, a first calculator for calculating the thermal flow rate of the fuel gas from the output of the thermal mass flow rate sensor, a control computing unit for controlling the flow rate of the fuel gas via a flow rate regulating valve according to the calculated thermal flow rate, a second calculator for calculating the calculated calorific value per unit volume of the fuel gas, and a computing unit for computing the ratio of the calculated calorific value to the reference calorific value per unit volume of the fuel gas in a reference state. The ratio is used for the control of the flow rates of the air and/or oxygen by the flow rate control modules. | 11-11-2010 |
| 20110014578 | Coal-fired power station and method for operating the coal-fired power station - In a method for operating and controlling/regulating a power station comprising a coal-fired steam generator ( | 01-20-2011 |
| 20120276487 | BURNER SYSTEM - A grounded burner, actuators adjusting the supply of fuel and air to the burner, an ionization electrode in the flame region, a flame amplifier at the ionization electrode generating an ionization signal, and a final control device are included in a burner system. During air ratio control mode, the final control device sets a first actuator and adjusts a second actuator. During voltage control mode a voltage regulator controls the AC voltage source using the AC voltage measured by the voltmeter, in conjunction with an ionization current amplifier. The voltmeter is connected in parallel with a sequence of the ionization electrode, the flame region, the burner and the input of the ionization current amplifier. The voltage regulator is connected to the voltmeter such that, during voltage control mode, the time-averaged current caused by the voltmeter through the connection is less than 5% of the time-averaged current through the ionization electrode. | 11-01-2012 |
| 431076000 | Combustion product composition sensor | 6 |
| 20100112500 | APPARATUS AND METHOD FOR A MODULATING BURNER CONTROLLER - This invention describes a modulating burner controller device for varying burner combustion over a wide range and has an output that integrates the control of all functions required to operate the burner. Specifically, the controller uses measured feedback from a fuel flow sensor to attain the proper mixture of fuel and air for optimum combustion performance for both individual and multiple the burner applications. | 05-06-2010 |
| 20080293001 | BURNER IGNITION CONTROLLER - A fuel burner controller and associated method is configured to establish fuel combustion in a fuel burner and to recycle a fuel combustion initiation process when a loss of combustion is detected and a call for heat is asserted. The controller is further configured to limit a number of recycles of the fuel combustion initiation process based on a time budget. | 11-27-2008 |
| 20090017406 | COMBUSTION CONTROL SYSTEM OF DETECTION AND ANALYSIS OF GAS OR FUEL OIL FLAMES USING OPTICAL DEVICES - A system of detection and analysis of gas or fuel oil flames using optical devices, consisting of a sensor that targets the flame's reaction zone through an optical access, a processing and control module, and an actuator, responsible for controlling the damper. The system optimizes combustion equipment operation by controlling the damper, obtaining better performance and reducing polluting emissions. | 01-15-2009 |
| 20120034569 | SENSOR CONTROLLER - A sensor controller for a particulate matter detection sensor includes a heater configured to heat an attachment portion so as to burn and remove particulate matter attached to the attachment portion, a learning portion for obtaining a sensor detection value immediately after burning and removing the particulate matter due to heating of the heater. The leaning portion calculates a sensor standard value based on the obtained sensor detection value in a state where the particulate matter is removed, and stores the sensor standard value as a learning value. Furthermore, a correcting portion corrects the sensor detection value based on the sensor standard value stored by the learning portion. | 02-09-2012 |
| 20100028819 | Combustion gas analysis - A chemical analysis method for determining the concentration of carbon monoxide, gaseous water and gaseous hydrocarbon in a combustion gas. The method includes the following steps: (a) directing wavelength modulated light from a single tunable diode laser at a wavelength in the range of from 2 to 2.5 micrometers through the combustion gas to a light detector to produce an absorption profile of the combustion gas (b) digitizing the adsorption profile of the combustion gas; (c) storing the digitized adsorption profile in a digital computer; (d) processing the digitized adsorption profile in the digital computer to produce an output from the computer indicative of the concentration of carbon monoxide, gaseous water and gaseous hydrocarbon in the combustion gas. | 02-04-2010 |
| 20110045422 | OPTICAL FLUE GAS MONITOR AND CONTROL - A plurality of optical monitoring systems | 02-24-2011 |
| 431077000 | Of shutdown by response to sensed combustion failure or overheat | 6 |
| 20090214994 | Device for Igniting and Kindling a Fireplace - A device for igniting combustible means, especially solid combustibles such as wood, charcoal, and similar. The device includes a pressurized receptacle that is filled with a combustible medium, a spring-loaded actuating valve which selectively opens and closes a discharge port of the receptacle, preferably by applying pressure with a fingertip, and a top part that is joined to the discharge port and has a tubular extension having an adequate length. | 08-27-2009 |
| 431078000 | By electrical control circuit | 5 |
| 20090253087 | IGNITION CONTROL WITH INTEGRAL CARBON MONOXIDE SENSOR - A control for controlling the operation of a fuel-fired heating appliance is provided that include a sensor capable of sensing the presence of carbon monoxide gas and providing an output indicative of the level of carbon monoxide gas. The control further includes a microprocessor that periodically reads the CO sensor output and stores at least one sensor output value in a memory, wherein the microprocessor responsively discontinues the operation of the appliance when the microprocessor detects a sensor output that has increased by more than a predetermined amount over at least one previously stored sensor output value. In one embodiment, the control is preferably configured to periodically read the sensor output value, and responsive discontinue operation of an appliance upon sensing a predetermined increase of at least a 50 percent increase over the previously monitored sensor output value over a period of about 15 to 90 minutes. | 10-08-2009 |
| 20120156628 | CONTROL FACILITY FOR A BURNER SYSTEM - A control facility is provided for a burner system having a burner, actuators with which the supply of fuel and air to the burner is set, and an ionization electrode arranged in the flame zone. The control facility is equipped with a flame amplifier at the ionization electrode to generate an ionization signal and a positioning facility which, in control operation, positions a first actuator and regulates a second actuator by using a corresponding target value for the ionization signal. The positioning facility carries out a control operation in a first test step, it shifts the actuators toward a supply ratio corresponding to an air coefficient above the stoichiometric value of λ=1 and in so doing captures the ionization signal in a second test step, and it calculates a target value from this and from stored data in a third test step. Correction of drift therefore takes place. | 06-21-2012 |
| 20100009304 | METHOD AND APPARATUS FOR EMISSIONS DETECTION IN A COMBUSTION APPLIANCE - A furnace system that generates heat by combustion is provided. The furnace system includes a sensor ( | 01-14-2010 |
| 20100291494 | FLAME ROD ANALYSIS SYSTEM - A flame rod analysis system, methods for determining a condition of a flame and a flame rod, and circuits for determining a condition of a flame and a flame rod. The flame rod analysis system comprises energy storage connectable to a flame rod, a pulsed source connected to the energy storage and providing a voltage pulse or a current pulse, and a buffer to allow a processor to measure a buffered voltage at various time points. Flame rod analysis systems can distinguish between various flame conditions (no flame, low flame, etc.) while simultaneously characterizing the condition of the flame rod (shorted to ground, contaminated, etc.). Some flame rod analysis systems can directly measure the resistance of the flame rod. | 11-18-2010 |
| 431079000 | Photoelectric sensor | 1 |
| 20080299505 | Method for evaluating the state of a fuel/air mixture - The invention relates to a method for evaluating the state of a fuel/air mixture and/or the combustion in a combustion chamber of an internal combustion engine, with sample signals of flame light signals, preferably the flame intensity (F | 12-04-2008 |
| 431086000 | By manually started timer or retarder, or by time of day device | 2 |
| 431087000 | Of combustion initiating means, e.g., match striker, etc. | 2 |
| 20120115096 | DEVICE FOR CONTROLLING GAS SUPPLY TO A BURNER - A gas supply control device for an apparatus, particularly a coking apparatus, includes timing means ( | 05-10-2012 |
| 20120100494 | Burner Assembly - A burner assembly comprising a burner element ( | 04-26-2012 |
| 431089000 | By condition of burner feed or feed means | 9 |
| 20100047728 | COMBUSTION APPARATUS FOR A GAS BOILER - Disclosed is a combustion apparatus of a gas boiler. The combustion apparatus of the gas boiler includes a structure that can improve a TDR of a burner, and can increase an efficiency of a gas boiler by preventing oxygen concentration of exhaust gas from being rapidly increased in a low output area The combustion apparatus includes: an air blower for supplying air required for combustion; a proportion control valve for controlling a supply flow rate of gas; a nozzle part connected to the proportion control valve, the nozzle part supplying gas according to opening and closing of auxiliary valves and including a plurality of nozzles connected in parallel with one another; a mixing chamber for mixing the air supplied from the air blower and the gas passed through the nozzle part, and then supplying the mixed air and gas to a bumer surface; and a controller for controlling the number of rotations of the air blower according to opening and closing of the proportion control valve and the auxiliary valves, so as to supply only an amount of air as much as that required for combustion. | 02-25-2010 |
| 20120295206 | COMBUSTION EFFICIENCY CONTROL SYSTEM FOR A LAMINAR BURNER SYSTEM - A high efficiency laminar flow burner system for proving a stream of heat energy including a supply input module for providing fuel and laminar streams of air to a combustion manifold. The laminar air delivery system includes a damper, a blower, and an air delivery controller. The air delivery controller receives an efficiency signal to control the flow of a laminar air intake stream by adjusting the damper. The combustion manifold includes an air-fuel mixing system, a stoichiometric unit, and a refractory unit each coupled to one another. The laminar air intake stream traveling from the supply input module passes through a stoichiometric unit body to meet with a first combustion stream from an air-fuel mixing chamber within the stoichiometric unit body to define a second combustion stream. The second combustion stream then travels across the refractory passageway to define a third combustion stream. | 11-22-2012 |
| 20110223549 | Laminar Flow Combustion System and Method for Enhancing Combustion Efficiency - A high efficiency laminar flow burner system for proving a stream of heat energy including a supply input module for providing fuel and laminar streams of air to a combustion manifold. The combustion manifold includes an air-fuel mixing system, a stoichiometric unit, and a refractory unit each coupled to one another. A first combustion stream is established at the air-fuel mixing chamber system as fuel exits an injector device at direction perpendicular to the laminar air intake stream. A laminar air intake stream traveling from the supply input module and along the staging passageway passes through a stoichiometric unit body at a plurality of air intakes to meet with the first combustion stream within to define a second combustion stream for introduction from the stoichiometric unit to the refractory unit. The refractory unit thus defines a third combustion stream as the second combustion stream travels across a refractory passageway. | 09-15-2011 |
| 20110081619 | REGULATING DEVICE FOR GAS BURNERS - Regulating device for gas burners for providing a gas/air mixture, with a mixing device for mixing a gas flow with a combustion air flow and therefore for providing the gas/air mixture, wherein in a gas line which conducts the gas flow at least one gas valve is positioned, which is adjusted in dependence upon a measurement signal of an electric or electronic sensor, wherein the sensor acts on the gas line by a measuring point and wherein a reference pressure prevails on a reference point of the sensor. The mixing device may be formed as a Venturi nozzle, wherein the gas line leads to a mixing region of the Venturi nozzle in which the gas flow and the combustion air flow are mixed, wherein the reference point of the sensor acts on a device in which the reference pressure prevails, and wherein the device may be connected via a connecting line to the Venturi nozzle, that is to say to a region of the Venturi nozzle which lies downstream of the mixing region of the Venturi nozzle. | 04-07-2011 |
| 20100330517 | Continuous Real Time Heating Value (BTU)/Coal Flow Balancing Meter - A method and an apparatus for continuous real time heating value/coal flow balancing of coal from a coal feeder to a burner. The apparatus includes a Dual-energy Gamma Attenuation (DGA)/Multi-energy Gamma Attenuation (MGA) device for measuring coal quality at a specific location between the coal silo/bunker and the coal feeder in a coal fired plant in order to control the individual burner stoichiometries according to the measured coal quality. By strategically placing the DGA/MGA device, continuous accurate real-time coal quality information is accomplished for making individual adjustments in order to improve stoichiometry to optimize performance of the system. | 12-30-2010 |
| 20120045726 | Dual Fuel Gas Heater - A dual fuel vent free gas heater. In one implementation the heater includes a gas burner adapted to receive one of a first type of gas or of a second type of gas with a first pilot burner intended to receive the first type of gas and a second pilot burner intended to receive the second type of gas. A first temperature sensor is located adjacent the first pilot burner and a second temperature sensor is located adjacent the second pilot burner. A normally closed thermal switch is coupled to the first temperature sensor and located in the electrical flow path between a voltage source and a gas control valve actuator, the thermal switch configured to open when the temperature detected by the first temperature sensor exceeds a predetermined temperature indicative that the second type of gas is being delivered to the first pilot burner. | 02-23-2012 |
| 20120315587 | SYSTEM FOR FLARE GAS RECOVERY - The system fulfils the requirements for safety with its active opening device and with its two levels of different independent mechanical protections against overpressure including a BD with block valves and the BPV without any block valves. | 12-13-2012 |
| 20090130616 | METHOD FOR DETERMINING AN AIR RATIO IN A BURNER FOR A FUEL CELL HEATER, A FUEL CELL HEATER - A method for determining an air ratio in a burner for a fuel cell heater having an ionization sensor in the range of the flame and which is fed with two different gases for combustion, one of said gases being obtained from a gas treatment, wherein a measurement signal of the ionization sensor is converted into an actual value for the air ratio depending on one or more variable of states of the gas treatment. | 05-21-2009 |
| 431090000 | Sensor of one feed controls another feed | 1 |
| 20120040297 | APPARATUS FOR MIXING AND PROPORTIONING OIL AND WATER - An apparatus for mixing and proportioning oil and water comprises an upper lid, a first chunk member, a holder, a second chunk member and a base. The first chunk member and second chunk member have respectively an oil inlet, an oil-water mixture outlet and a water outlet that are connected with one another to receive and discharge oil and water. The first and second chunk members have respectively two oil flow gears and two water flow gears that engage with each other to control oil and water entering ratio to achieve optimal combustion efficiency. In the base, a located water regulation valve is adjusted to buffer water intake ratio responding to internal pressure alterations. The water regulation valve forms a buffer passage allowing different ratios of water to flow to the water in/out passage so that an improved oil-water mixture is achieved to enhance combustion efficiency of the combustion system. | 02-16-2012 |
