Class 431/42 - Sensor of first burner controls second burner, e.g., pilot and main, etc.

Subclass of Class 431 - Combustion
Definition: Apparatus in which a means responsive to a condition of
No. of patents: 33
Last issue date: 10/14/2008

Number	Title	Issue Date
7435081	Method and system for pilot light safety A gas valve includes a gas inlet in fluid communication with a first chamber, a second chamber in selective fluid communication with the first chamber, a gas outlet in selective fluid communication with the second chamber, a pilot light outlet in fluid communication...	10/14/2008
7252502	Method and system for combined standing pilot safety and temperature setting The method and apparatus provides a controller (which might comprise a microprocessor) that can control gas flow to a pilot burner in fluid communication with a manual pilot valve and an automatic pilot valve. The exemplary embodiments can comprise a selectable inpu...	08/07/2007
7231917	Gas-fired cooking apparatus with control of cooking temperature A gas-fired cooking apparatus, comprising a cooking compartment inside which one or more burners are inserted, gas supply source being suitable to supply gas to the one or more burners, further comprising elements for regulating the flow of gas that arrives from the...	06/19/2007
6920377	Self-sustaining control for a heating system A self-sustaining control for a heating system, having conventional operational modes and pilot burner assembly, is disclosed. A controller directs operation in accordance with a need-based protocol and monitors the condition of a storage device, which provides syst...	07/19/2005
6794771	Fault-tolerant multi-point flame sense circuit A fault-tolerant multi-point flame sense circuit utilizes a single electronic switch to signal the presence or absence of flame to an electronic controller. Multiple flame sense electrodes may be input to this circuit. By configuring these electrodes in accordance w...	09/21/2004
6729873	Automatic flame-out detector and reignition system and method of ignition An automatic flame-out detector and reignition system for a fuel burning apparatus comprises at least one spark generator. The spark generator comprises a spark gap and a transformer. The transformer has a primary winding and a secondary winding. The spark gap is co...	05/04/2004
6210152	Burner for a heat generator and method for operating the same In a burner for operating a combustor, the former consists essentially of a rotation generator (100), a transition piece following the rotation generator, and a mixing pipe following this transition piece. Transition piece and mixing pipe form the mixing ...	04/03/2001
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 when operating in the control flame mode of operation. The ...	10/10/2000
6059562	Gas appliance with automatic gas shut-off device responsive to flame outage A gas appliance is provided for producing an open flame. The gas appliance includes an elongated gas tube, a gas inlet, a nozzle, a flame sensor, a gas shut-off valve, and a protective member. The gas tube has a proximal end and a distal end. The gas inle...	05/09/2000
5975884	Stand-alone device for igniting, regulating and operating gas appliances A temperature control system for gas operated devices. The system includes a burner (23) that is connected to a gas supply through a regulator (41). A pilot light assembly (26) has a first vane (29) and a second vane (32) which provide a flame for ignitin...	11/02/1999
5785511	Control device for gas supply to main burner and pilot burner of a gas equipment In this combustion gas control device, an electromechanical control is provided for automatically controlling the supply of the gas to the pilot burner when it is being ignited and subsequently to the main burner. The device has a main chamber, a pilot ch...	07/28/1998
5453002	Fuel saving pilot control valve A pilot for a gas fuel burner assembly is controlled so that the pilot is extinguished when the burner is ignited and lit when the burner is extinguished....	09/26/1995
5222887	Method and apparatus for fuel/air control of surface combustion burners A fuel/air control system for use in controlling the operation of a surface combustion burner includes a photodetector that provides electrical signal equivalents of burner flame emission to a controller. The controller simultaneously receives signals ind...	06/29/1993
5067651	Fuel control device, fuel control system using the device and method of making the device A fuel control device, system using the device and method of making the same are provided, the device comprising a housing having an inlet for being interconnected with a fuel source and an outlet for being interconnected to a main burner, the housing hav...	11/26/1991
4984981	Heater with flame powered logic supply circuit A flame powered logic supply circuit (60) responds to a pilot flame (39b) and supplies electrical energy to power electronic logic circuitry (62) for a heater, such as a hot water heater (1), a furnace, or the like. A thermoelectric element (64) responds ...	01/15/1991
4887958	Method and system for controlling the supply of fuel and air to a furnace A method and system are disclosed for providing fuel and air to a furnace. The furnace includes a plurality of burner assemblies, each with its own air valve for controlling the flow of combustion air therethrough. A sensing instrument for each burner ass...	12/19/1989
4852799	Weatherized, baffled, gas filtered, semi-automatic heating system for a poultry house or the like This invention discloses a heating and cooling system for buildings, such as poultry buildings, that provides clean, filtered gas fuel, efficiently burns gas fuel by providing adjustable airflow profile plates that blocks cold air from reaching the inside...	08/01/1989
4813596	Fuel control device, fuel control system using the device and method of making the device A fuel control device, system using the device and method of making the same are provided, the device comprising a housing having an inlet for being interconnected with a fuel source and an outlet for being interconnected to a main burner, the housing hav...	03/21/1989
4798531	Process and apparatus for the control of the air and fuel supply to a plurality of burners A plurality of burners, e.g., steam boiler burners, are provided with air and fuel through separate conduits. A separate air volume regulator is provided for each burner, but only a single fuel volume regulator is provided for all burners. After one burne...	01/17/1989
4770629	Status indicator for self-energizing burner control system A self-energizing burner control system for a fuel burner is accomplished by heat from a pilot flame energizing a thermoelectric generator. The thermoelectric generator supplies power to an oscillator. The oscillator has an output that is stepped up in vo...	09/13/1988
4717333	Burner ignition system An electronic ignition system for a gas burner is battery operated. The battery voltage is applied through a DC-DC chopper to a step-up transformer to charge a capacitor which provides the ignition spark. The step-up transformer has a significant leakage ...	01/05/1988
4696639	Self-energizing burner control system for a fuel burner A self-energizing burner control system for a fuel burner is accomplished by heat from a standing pilot energizing a thermoelectric generator. The thermoelectric generator supplies power to an oscillator. The oscillator has an output that is stepped up in...	09/29/1987
4597733	Gas heating system for dehydrators and the like A gas heating system for a natural gas dehydration or the like comprising a burner housing means, a main gas burner unit and a pilot light gas burner unit mounted in the housing means, and separate air-gas supply means for each of the main gas burner unit...	07/01/1986
4533315	Integrated control system for induced draft combustion An integrated, closed loop system for controlling the fuel to air ratio in an induced draft combustion chamber which has a control pilot through which a draft is induced so that the fuel to air ratio in the control pilot chamber has a predetermined ratio ...	08/06/1985
4505253	Water heater A water heater is disclosed having a main burner for heating a heat exchanger and a standing burner, and is also provided with an electromagnetic safety valve which is opened by a manual operation member and which is kept in its valve open condition by th...	03/19/1985
4435150	Gas burner control system Upon a call for heat, gas flows to a pilot burner, a spark generating circuit is energized to ignite the pilot burner, and an oscillator is energized. When flame appears, the output signal of the oscillator is effective, through flame responsive means inc...	03/06/1984
4360338	Control system for dual coil pilot valve burner system There is disclosed a control system for a gas burner appliance having an interrupted pilot burner operation. The system employs serially-connected first and second (main) electromagnetic operated valves. The first valve has a dual coil construction with a...	11/23/1982
4188180	Fuel burner safe starting system A fuel burner safe starting system which utilizes a pilot valve and a main valve is disclosed. A flame detection system operates in conjunction with a relay which properly ignites and operates the fuel burner system. In the event of a failure which improp...	02/12/1980
4147496	Safety ignition means for burner installations Safety ignition means for burner installations having a first solenoid operated valve for a pilot burner, a second solenoid operated valve for a main burner, and an electric heater for igniting the pilot burner. The first valve has a hold solenoid connect...	04/03/1979
4140475	Combustion detection apparatus An improved combustion detection apparatus is disclosed that can be employed in a fail-safe control circuit for a combustion apparatus to operate a shut-off valve in the fuel supply in response to the presence or absence of combustion. The improved combus...	02/20/1979
4080153	Thermal switch There is disclosed a thermally responsive switch that is ideally suited for responding to the ignition and extinguishment of a flame. The switch is provided with two switch poles, one that is biased normally open and the other that is biased normally clos...	03/21/1978
4078879	Fuel ignition system control arrangement providing total fuel shutoff and contact protection A control arrangement for a fuel ignition system to provide an interlock on start-up to prevent energization of fuel valves under certain failure conditions includes a pulse generating circuit operable when enabled to provide pulses for enabling a first s...	03/14/1978
4045155	Burner system with absorbent carbon flame responsive switch A thermal responsive switch employs a gas expansion operating member movable by changes in pressure of a gas charge in a chamber containing a carbonaceous adsorbent material formed from a compound of carbon and non-carbon component by removing the non-car...	08/30/1977

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Class 431/42 - Sensor of first burner controls second burner, e.g., pilot and main, etc.