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| Number | Title | Issue Date |
| 7428901 | Cooking stove A cooking stove that prevents the execution of a process such as ignition of a burner when a touch switch changes from a non-sensing state to a sensing state. In STEP201, when a first touch switch, which is one of the touch switches provided in an operation, ... | 09/30/2008 |
| 7255100 | Electronic gas cooktop control with simmer system and method thereof An electronically activated gas cooktop control system, responsive to a touch-sensitive user interface, and capable of providing a predetermined range of cooking and simmer levels of BTU output, has two complementary heating modes of operation A first heating mode o... | 08/14/2007 |
| 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) for modulating the burner ... | 05/16/2006 |
| 6951637 | Method and device for producing globular grains of high-puroty silicon having a diameter of between 50 μm and 300 μm and use of the same The invention relates to a method and a device for producing globular grains of high-purity silicon by atomising a silicon melt (6) in an ultrasonic field (10). Globular grains having a grain size of 50 μm can be produced by means of said method and d... | 10/04/2005 |
| 6942482 | Combustion control device A safety circuit 31, which compulsorily closes an on-off valve for supplying a gas to a burner when a microcomputer for performing a combustion control is in an abnormal condition, does not operate unless abnormality occurs to the microcomputer 1, and ... | 09/13/2005 |
| 6929465 | Timer circuit for valve activation in oil burner system The present invention is directed to an oil burner system having an electric cord set coupled between a controller and a valve associated with a pump. The electric cord set is operable to activate a solenoid valve associated with the pump for delivery of fuel oil to... | 08/16/2005 |
| 6698417 | Device for obtaining rapid ignition of a cooking hob gas burner fed via a gas pipe provided with a solenoid safety valve A device for obtaining rapid ignition of a gas burner of a cooking hob fed via a gas pipe provided with a solenoid safety valve, with said burner there being associated a usual igniter and a knob for controlling its activation, the solenoid valve being co... | 03/02/2004 |
| 6666676 | Programmable burner for gas stoves A programmable burner for gas stoves, which is constituted by a gas burner and a safety valve that includes a thermocouple, which is located in coincidence with an external edge of the burner. The safety valve is maintained open when the thermocouple is d... | 12/23/2003 |
| 6478574 | Pump purge for oil primary An oil burner control system is disclosed in which an extended time may be temporarily selected, in situations such as initial set up or periodic maintenance, for priming the pipes, filters and pumps, before a safety lockout of system operation occurs, wh... | 11/12/2002 |
| 6168418 | Ignition system with delay switch for a gas appliance An ignition system for a gas appliance comprises an ignitor for igniting gas, a gas valve which controls the flow of gas to the ignitor, and a delay switch which delays the opening of the gas valve. The delay switch comprises a piston and a cylinder which... | 01/02/2001 |
| 6164554 | Pressure atomizing type burner for an engine independent heating system in a vehicle The present invention pertains to a present atomizing type burner (1) for an engine independent heating system in a vehicle, comprising a pump (2) for feeding liquid fuel (4) through the fuel pipe (5) to the spray nozzle (3), a ventilator (6) for feeding ... | 12/26/2000 |
| 6128176 | External burner shut-off The present invention provides an external burner shut-off for oil fired heating systems. More specifically, the present invention provides a burner control circuit interrupt for a burner control circuit. The interrupt includes a pair of switches controll... | 10/03/2000 |
| 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, thereby ions are produced which form an ion current between... | 10/19/1999 |
| 5957679 | Gas fireplace burner control system A direct spark ignition control system is provided for controlling for a gas fireplace burner. A solenoid is operatively controlled for supplying gas to the gas fireplace burner. A high voltage spark ignition circuit is operatively controlled for generati... | 09/28/1999 |
| 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 controlling the flow of fuel gas from a fuel gas source to each of a... | 08/24/1999 |
| 5722823 | Gas ignition devices In a gas appliance, such as a domestic gas fire or heater, there is provided a gas ignition device comprising a solenoid actuator which is electrically operable to cause a gas valve to initiate a gas flow, an igniter which is electrically operable to igni... | 03/03/1998 |
| 5720607 | Ignitor An ignitor includes a first transistor, a transformer, an ignition member, and a switching control member. The first transistor is activated in accordance with supply from a DC power supply to perform switching. The transformer has a primary winding throu... | 02/24/1998 |
| 5673680 | Gas-heated apparatus The invention concerns a gas-heated apparatus, in particular a cooking appliance with at least one glass ceramic cooking surface with a gas heating means of conventional configuration and two mutually independent safety paths for monitoring the electronic... | 10/07/1997 |
| 5636978 | Combustion apparatus A gas burning power supply section 10 for igniting gas includes a secondary battery and a solar battery for charging the secondary battery, and the operating voltage from the power supply section 10 is supplied to a gas ignition circuit 30, a flame detect... | 06/10/1997 |
| 5575638 | Stove burner simmer control A burner control provides a pulsed flame sequence in response to a user's selective manipulation of an actuator through a range of response. A microcontroller-based control module switches both a burner ignitor control and an electric valve for gas supply... | 11/19/1996 |
| 5480093 | Combustion heater system for motor vehicles A combustion heater system for use in a moter vehicle has a combustion chamber housing a combustion pad which is heated by a pre-glow plug for vaporizing a fuel that is supplied from a fuel tank through a solenoid-operated valve to the combustion pad. The... | 01/02/1996 |
| 5347982 | Flame monitor safeguard system A gas burning fireplace having a burner for producing a flame. A rod in the vicinity of the burner. A gap between the burner and the rod and wherein a flame is produced in the gap. An apparatus for monitoring the presence of a flame including a battery fo... | 09/20/1994 |
| 5271375 | Monitoring of gas flow A gas flow detection device having an inlet for connection to a source of gas and an outlet for connection to a gas-using appliance is disclosed. Gas for feeding a pilot flame of the appliance flows through a permanently open orifice. When the appliance i... | 12/21/1993 |
| 4934925 | Gas ignition apparatus A spark ignition system for a heater-type ignitor is disclosed. Current through the ignitor is transformed into a voltage which is utilized to operate a timing circuit which, in turn, causes operation of a valve permitting the flow of fuel to a burner. Op... | 06/19/1990 |
| 4872831 | Kerosene heater providing automatic wick repositioning after ignition A kerosene heater having a vertically oriented wick (4) which is movable to an upper position to be ignited, to a lowered position to be extinguished, and to any of a range of intermediate positions for continuous combustion, incorporates an apparatus (6A... | 10/10/1989 |
| 4863372 | Gas ignition apparatus A spark ignition system for a heater-type ignitor is disclosed. Current through the ignitor is transformed into a voltage which is utilized to operate a timing circuit which, in turn, causes operation of a valve permitting the flow of fuel to a burner. Op... | 09/05/1989 |
| 4856983 | 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 high voltage ignition circuitry incorporating a hot surfac... | 08/15/1989 |
| 4834644 | Premix oven pulsing control system A plurality of burners are provided for burning a combustible gas mixture. A conduit extends to each of the burners for supplying a combustible gas mixture thereto. A mixing device is coupled between the conduit and a source of air and a source of combust... | 05/30/1989 |
| 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 from the burner, an isolation transformer comprising a heater... | 05/05/1987 |
| 4655705 | Power gas burner for wood stove A power burner adaptable for use in conjunction with a wood burning stove employs a blower to produce a forced flow of air and a fuel valve which provides selective fuel communication with a fuel nozzle. Forced air and fuel is mixed in the nozzle and prop... | 04/07/1987 |
| 4614993 | Operation control apparatus in a combustion device An operation control apparatus, in a combustion device, comprising an operation member (4) selectively settable at a stop position (A), an ignition position (B) or an open position (C); an electric member (10) and/or (15) which is energized by an electric... | 09/30/1986 |
| 4392812 | Control circuit for gasified liquid fuel combustion apparatus A gasified liquid fuel combustion apparatus which includes a gasifier in which liquid fuel is heated and gasified and delivered to a burner for combustion. A nozzle provided at the outlet of the gasifier is opened and closed by a valve needle operated by ... | 07/12/1983 |
| 4389184 | Combustion control apparatus A combustion control apparatus which controls combustion in a combustor which is a heat source of a hot-water boiler or a hot-air heater includes a memory circuit which generates an alarm signal and also a signal for stopping the operation of the apparatu... | 06/21/1983 |
| 4376626 | Device for the control of a sequential burner of a cooking apparatus Control device for at least one sequential burner of a cooking apparatus, comprising in combination: a geared-down synchronous motor and a drum which can be driven in rotation by this motor, an electric circuit associated with this drum, comprising at least on... | 03/15/1983 |
| 4373898 | Timer and control circuit A timer and control circuit using a field effect transistor that is operated in three different current carrying conditions or operating modes is disclosed. The three operating modes are used to establish two successive timed intervals for a prepurge and ... | 02/15/1983 |
| 4370126 | Combustion control apparatus This invention relates to a control circuit which controls combustion in a burner acting as a heat source of a hot-water boiler or a hot-air heater. More particularly, the present invention relates to a control circuit having a sequence which includes pos... | 01/25/1983 |
| 4299557 | Fuel burner control circuit A circuit for safely admitting fuel to a burner, igniting the fuel, detecting the presence of flame at the burner, and preventing the escape of unburned fuel from the burner if ignition is not accomplished or the flame is interrupted. An initiation circui... | 11/10/1981 |
| 4239478 | Check circuit for combustion process control timer A check circuit for checking operation of timers of a digital type combustion process control apparatus comprises flip-flops each having a preset terminal. The preset state of the flip-flops is inverted by an operation starting signal. The inversion is de... | 12/16/1980 |
| 4235587 | Flame responsive control circuit A flame responsive control circuit means has been disclosed which responds to the flame in a burner. The response is to the sudden rate of change of the resistance or impedance of a photocell upon the loss of flame. The two embodiments disclosed both util... | 11/25/1980 |
| 4226581 | Safe start check circuit A safe start check circuit for a fuel burner is disclosed. Two relays are arranged to insure proper start and to protect against component failure. Delays in operating the relays, and a normally closed control relay contact serve to both prevent relay rac... | 10/07/1980 |
