Zuendsicherung fuer Reichgasbrenner mit einem Gasventil, dessen Leckgas dem Mischrohr eines Brenners (Zuendbrenners) zugefuehrt wird

ANORDNUNG ZUM ZUENDEN UND UEBERWACHEN EINES BRENNERS

Bandkassette

Control device for fuel-burning apparatus

... 942,650. Valves. ROBERTSHAW-FULTON CONTROLS CO. July 19, 1962 [July 19, 1961], No. 27860/62. Heading F2V. [Also in Division F4] A control device for a gas burning apparatus, for instance a cooking oven, 30, Fig. 1, comprises a pilot burner 54 fed with gas by two passages, one of which includes a valve 76, Fig. 7, actuated by a thermostat 56 responsive to the oven temperature, and a main burner 36 supplied with gas through a valve 58 opened by a thermostat 57 responsive to an enlarged flame of the pilot burner. When the temperature of the oven reaches a value set by the manipulator 42 of a thermostat unit 40, the pilot valve 76 closes and the pilot burner is supplied through one passage only to provide a small flame which is unable to heat the thermostat 57 for the main valve 58, and consequently the main burner 36 goes out. The combined supply of gas to the pilot burner is also controlled by an electromagnetic safety valve 59 held in open position against the action of a spring by the current ...

Safety devices for burners

... 300,507. Spencer Thermostat Co., (Assignees of Sellman, N. T.). Nov. 12, 1927, [Convention date]. Thermally - actuated valves. - A thermally actuated safety-cut off device for gas burners adapted to operate in the event of the flame being extinguished comprises a valve 15 actuated by a dished bimetallic diaphragm 20. The diaphragm is housed in a casing formed of two parts crimped together, one part 16 being secured to the inlet pipe 4, while the other 17 is cut to embrace the burner tube 10, a securing clip 19 being fitted if desired. The part 17 may be closed and a member of high heat conductivity secured to the casing so that a tongue on the member projects into the flame.

Improvements in or relating to burner control apparatus

... 1,145,077. Controlling burners. HONEYWELL Inc. 14 April, 1966 [19 April, 1965; 3 Sept., 1965; 3 March, 1966], No. 16463/66. Heading F4T. [Also in Division G1] A burner is controlled in dependence on its temperature and the level of carbon monoxide in the surrounding atmosphere using a sensor sensitive to both temperature and carbon monoxide. The sensor 13, Fig. 14, is housed in a chamber 21 adjacent the burner 20 and is connected to control a valve 18 in the fuel supply to the burner. Air and carbon monoxide flows into the chamber 21 through an aperture 14 and then into the burner body 11 through inlet 15 where it is mixed with the fuel and subsequently ignited. A bimetallic strip 16 may be provided in the housing 21 to control the intake of air dependent on the temperature at the burner, so that, for normal operation of the burner, the temperature of the sensor is maintained substantially constant and its output is dependent on the carbon monoxide content of the atmosphere. For abnormal ...

Improvements in safety devices for burners

... 351,712. Electrically-actuated valves. ELECTROLUX, Ltd., 153, Regent Street, London.-(Assignees of Lenning, A. ; 2, Norrmalmstorg, Stockholm.) June 4, 1930, No. 17203. Convention date, June 4, 1929. [Class 135.] A safety cut-off valve for gas or liquid fuel burners is opened under manual control and is held in the open position by an electromagnet or solenoid supplied by a thermo-couple, one junction of which is heated by the burner. In the form shown in Fig. 1 the valve member 38 which co-operates with a seat 20 screwed into the inlet 18 is carried by a spring arm 36 mounted on the armature 30 of an electromagnet. The polepieces 24, which are screwed through holes in the casing are coupled together by a bar 52 secured by nuts 50 and are each recessed to form a seating for a guide pin 28 and a loading spring 26. The magnetizing coil 54 of low resistance is connected at 55 to a piece of constantan wire 56 to form the cold junction, the wire 56 being connected at 58 to the other end of the ...

Improvements relating to safety cut-off valves

... 876,029. Valves. GAS COUNCIL. Feb. 2, 1960 [Dec. 16, 1958], No. 40571/58. Class 135. In a safety cut-off valve for gas burners in which a spring-closed valve member 7 is opened and held open by a bi-metal strip 14 acting through a push-rod 15 the possibility of the valve failing to close due to dirt &c. where the push - rod passes through a close-fitting bore in the housing is avoided by the provision of a bush 16 which is a close fit on the push-rod to prevent leakage and is urged by a spring 18 into engagement with the end of a fixed bush 19 which has substantial clearance around the push-rod. The spring 18 is weaker than the spring 9 so that should the bush seize on the push-rod it can be carried upwardly to allow the valve to close. Any leakage past the bush 16 escapes at 12a where it is ignited.

Improved means for supervising flames more especially non-iuminous flames

... 810,725. Controlling gas burners. LANDIS & GYR A.G. March 30, 1955 [March 31, 1954], No. 9261/55. Class 75(1) In a flame supervisory device utilizing the rectifying action of the flame 2 and comprising a delay action relay 29, a safety switch 33, a polarized relay 18 having a polarizing winding 17, and two glow discharge lamps 14, 15 connected in series across a D.C. voltage provided, for instance, by a transformer 5, at rectifier 9 and a reservior condenser 10, the polarizing winding 17 of the polarized relay 18 is connected across the D.C. voltage and the control winding 23 of the polarized relay is connected between a point 22 between the two discharge lamps 14, 15 and a point 21 between a condenser 20 and a resistance 19 connected in series across the D.C. voltage. The polarized relay 18 operates two change over contactors 24, 48 and is such that when the polarizing winding 17 is energized the direction of the current in the control winding 23 determines whether the contactors close ...

Remoteoperate-cash electrical Zündsicherung

Dispositif de sûreté pour l'arrêt du gaz en cas d'extinction de la flamme dite "veilleuse".

Gasbackofeneinrichtung mit mindestens einem Gashahn und einer mit einem Zünd-Sicherheitsventil zusammenwirkenden Startvorrichtung.

Sicherheitsvorrichtung zur Verhinderung des Ausströmens unentzündeten Gases für Gasbrenner.

Flammen-Überwachungseinrichtung, insbesondere für leuchtende Flammen.

An Gasverbraucher angebaute thermoelektrische Zündsicherung.

Regelvorrichtung für Brenneinrichtungen

Zündbrennereinrichtung.

Dispositif interrupteur de sécurité

Fernbetätigbare elektrische Zündsicherungsvorrichtung

Zündsicherungsvorrichtung mit einer von einer Flamme etwa tangential beaufschlagten Bimetallfeder

Gassteuereinrichtung für gasbeheizte Geräte

Appareil de chauffage à gaz

Dispositif de commande d'un brûleur

Installation de commande d'un dispositif de combustion

PERFECTIONNEMENTS APPORTES AUX DISPOSITIFS DE SECURITE A VEILLEUSE POUR APPAREILS A GAZ

L'invention est relative à un dispositif de veilleuse pour appareils à gaz, notamment de veilleuse de sécurité, veilleuse contrôleur d'atmosphère, etc. Selon l'invention, la veilleuse présente un faible débit thermique, inférieur à 90 kcal/h pour une pression normale d'alimentation de gaz, notamment de l'ordre de 60 kcal/h. Application : appareils de chauffage à gaz, chauffe-eau notamment.

IMPROVEMENTS BRING TO THE SAFETY DEVICES HAS NIGHT LIGHT FOR APPARATUSES HAS GAS

Improvement with the safety devices and of order for apparatuses of instantaneous production of warm water by gas functioning without permanent pilot

Safety switch for gas burner - has interlock with ignition and water valve holding gas supply open

Pilot burner for igniting a main burner in a fuel burning device

Safety device for apparatuses comprising a gas-burner

PILOT RECLAMATION SYSTEM FOR GAS-FIRES FORCED DRAFT HEATER

A pilot reclamation system energizes the combustion air blower of a heater before the pilot flame is completely extinguished from lack of oxygen so that the oxygen supply for the pilot flame is replenished. Sensing means for sensing the temperature of the pilot light is operatively connected to switch means for energizing the combustion air blower. The temperature sensing means includes plunger means which move the switch means to close a circuit for the blower motor when the temperature of the pilot light falls below a predetermined level. When the oxygen supply to the pilot light is replenished and the temperature of the pilot light rises above a predetermined level, the temperature sensing means allows the switch to move to the open position.

Safety device for gas burners

Improvements in flame-failure control apparatus for fluid-fuel burning appliances

... 698,366. Testing strength of pipes. HYDRO. PRESS, Inc. June 19, 1951 [June 22, 1950], No. 14541/51. Class 106 (ii). A machine for subjecting tubes to internal fluid-pressure tests and having two sealing heads for engaging the walls of the tubes to be tested in aradialdirectioncomprises a hydraulic intensifier connected at its outlet side to a hydraulic motor capable of displacing one of said sealing heads relatively to the other and means for varying the output pressure of the intensifier. The motor may be arranged to displace one of the necessary end sealing heads of the tube-testing apparatus relatively to the other in such a way that the relationship of the sealing heads to the tube ends remains fixed irrespective of changes in length of the tube during a test. In Fig. 1, a shiftable carriage frame 15 has a test head 10 apertured to receive a pipe 12 within a packing 13. The test head 10 is slidably mounted on a stationary plunger 14 carried by the frame 15. Fluid is supplied to the ...

Gas valve assembly

... 1,038,141. Valves. CARBONARO M.C. Feb. 8, 1963 [Feb. 10, 1962], No. 5249/63. Heading F2V. [Also in Division F4] A thermal valve for controlling the gas flow to a burner comprises a diaphragm 26 adapted to close a gas orifice 28 and urged to an open position by a spring 27. A rod 29 is urged against the diaphragm by a bimetal strip 16 adapted to be heated by two resistances disposed in grooves in a steatite element 15 to open the valve and connected to the burner control circuit. The action of the bimetallic strip is adjusted by a screw 34, screwed into the strip and abutting the end of the rod. If the current fails the rod can be displaced to open the valve by pushing inwardly a plate 32. The plate remains in this position because the bimetal strip 16 applies the plate against the sides of guide slots in the valve casing. When the current returns the valve is held open by the heated bimetal strip and the plate is returned by a spring 33.

Improvements in or relating to a burner

... 628,285. Lighting gas burners. WHEELCO INSTRUMENTS CO. Feb. 20, 1947, No. 4980. Convention date, Aug. 13, 1941. [Classes 75(i) and 75(iii)] A gas burner 3 is provided with a safety control device including a flame electrode 2 disposed in the flame path of the burner 3 and a pilot burner 4 and connected with a switch mechanism 20 which operates when the flame circuit is completed to energize a relay 22 for opening a switch means, a second relay 12 having an operating coil 17 which, when energized by closing a starting switch 10, closes a second switch means, a supplemental switch means closed by the energization of the relay 22, and connections for operating an electrically controlled fuel valve 6 to admit fuel to the burner only when the supplemental switch means and the second mentioned switch means are closed. The burner is started by closing the push button switch 10 to energize from the mains 18, the electrically operated pilot valve 7, and the ignition transformer 5 through contacts ...

Improvements in and relating to Burner Control Apparatus

... 1,158,713. Burner control. HONEYWELL Inc. 24 Oct., 1966 [5 Nov., 1965], No. 47721/66. Heading F4T. A burner control apparatus comprises a control 10 including a flame detector, safety lock-out and terminals 19, 22, 23, connected respectively to a pilot burner fuel valve 16, igniter 17, and main burner fuel valve 18, the terminal 23 also being connected to a neon indicator light 30, and terminal 19 also to neon lights 31, 32, said apparatus operating during start-up by energizing terminal 23 thereby opening valve 16 and triggering indicator 30, next energizing terminal 22 to initiate ignition of pilot burner and if successful then energizing terminal 19 to open valve 18 and trigger indicator 31 and after a delay indicator 32 if the main flame is established. Once triggered the indicators will remain energized by means of a source of energy 33, of lower voltage than is required to trigger the indicators. Failure of the pilot flame will cause the lock-out to operate, de-energizing terminals ...

Improvements in or relating to gas burning apparatus

... 353,854. Thermally-actuated valves. BOSCH AKT.-GES., R., 4, Militõrstrasse, Stuttgart, Germany. Jan. 25, 1930, No. 2638. Convention date, Sept. 30, 1929. Void [Published under Sect. 91 of the Acts]. [Class 135.] A pilot burner e fittsd with a thermally-actuated valve g adapted to close automatically in the event of the flame being extinguished has a bi-metallic thermal element i secured to the burner casing a at one end and at the other attached to the valve member with a limited amount of lateral freedom. A second discharge passage may be arranged in parallel with the passage d. In the form shown in Fig. 2 the thermal element is in the form of a loop engaging a recess h<1> in the burner nozzle and connected to a sliding sleeve k having a crossbar k<1> passing through slots m to operate the valve g<1>. The burner nozzle may be formed in the thermal element. In a further modification the burner nozzle is formed on a sliding tube carrying the valve and actuated by a thermal loop anchored ...

An improved safety device for gas heating burners

... 360,352. Safety cut-off gas valves. JUNKERS, H., 21, Kaiserplatz, Dessau, Anhalt, Germany. June 9, 1931, No. 16797. Convention date, Aug. 4, 1930. [Class 135]. A thermallyactuated cut-off valve is actuated by a bimetallic strip laid substantially horizontally between the flames of the main burner and subject also to the heat of the pilot flame. The strip 8 is connected by a spindle 9 passing through an aperture in the burner manifold to a valve 10 arranged in the gas supply pipe 3. A sealing dollar 11 on the valve spindle may be arranged to contact with a seat surrounding the aperture when the valve is open to prevent the escape of gas. In a modification in which the burner tubes branch radially from a central manifold, the valve is mounted in the manifold and is actuated by a bent bi-metallic strip arranged in proximity to both main and pilot burners.

Improved gas burner

899,040. Gas stoves; radiants. VERMOTGAUD, J. L. E. Jan. 21, 1960 [Jan. 22, 1959], No. 2275/60. Class 126 A stove comprises a ceramic plate burner and a chimney 10 perforated over its whole height and mounted above, and slightly spaced from, the burner plate and on its vertical axis. The chimney 10 may be supported by the burner or, as shown, by independent means 11. Secondary air for combustion enters below the chimney and through the perforations causing the flame to burn through the whole chimney and ensuring complete combustion. The chimney 10 may be partially surrounded by a reflector and may support a plate-type grill at its upper end or a rotary grill mounted within the tube adjacent its upper end.

Safety control for gas heated appliances

... 864,423. Valves. SPERRYN & CO. Ltd. June 25, 1958 [July 25, 1957 ; Oct. 1, 1957], Nos. 23559/57 and 30674/57. Class 135. A gas burner safety control for a cooker or oven comprises a pilot jet 27 lit automatically by igniter 26 when gas passes a solenoid valve 30 opened by a preset timer, a thermal element 22 heated by the jet, and a spring-closed main burner gas valve 14 opened by the thermal element and closing when the pilot goes out. Members 22, 26 and 27 are housed in a flash tube 23. When coil 33 is de-energized similarly wound permanently-energized coil 34 allows the valve 30 to open under gas pressure. Energization of coil 33 closes the valve 30. The supply of gas to the solenoid valve may be controlled by a cock in series with a valve controlled by an oven thermostat which will vary the pilot flame, element 22 and valve 14.

IGNITION SYSTEMS

GAS BURNER ASSEMBLY

An atmospheric gas water heater includes a burner assembly. The burner assembly includes a burner having a body, and a screen member coupled to the body. A conduit is fluidly connected to the body. The conduit has an open end configured to receive gas and air. The flow of gas and air from the open end through the conduit to the body and past the screen member is defined as a downstream direction. The screen member defines a zone of combustion. The gas and the air is 100% premixed together upstream of the zone of combustion. The body of the burner has a first segment extending between a first end and a second end, and second and third segments extending from the first segment. The second segment and the third segment extend parallel to and spaced apart from each other to form a U-shape.

Detecting device of flame with very weak inertia for gas appliances and in particular for water-heater and instantaneous water heaters with gas functioning without permanent pilot

ILS A GAZ FONCTIONNANT SANS VEILLEUSE PERMANENTE

L'invention se rapporte aux dispositifs de sécurité et de commande pour appareils à gaz fonctionnant sans veilleuse permanente. L'équipage mobile actionnant simultanément les clapets d'admission du gaz au brûleur et à la veilleuse est maintenu dans la position correspondante à l'admission du gaz au brûleur par un dispositif additionnel dont le verrouillage est lié à la fois à la combustion du brûleur principal et à l'ouverture de la valve à eau. Application aux appareils à gaz du genre chauffe-eau et chauffe-bains instantanés.

Improvements brought to the safety devices for drains of gas fluids, in particular of flammable fluids

Sophisticated fitting of safety detector of carbonic gas for apparatuses with catalysis of a gas hydrocarbon

Gas appliance with ignition system to safety

Control device

Safety ignition and control device for burners

Vorrichtung zum selbsttaetigen Schliessen eines Absperrventils bei gasbeheizten Apparaten

Desinfektionsmittel, vorzugsweise zur Trockenreinigung von Textilgut u. dgl.

Gashahn mit Zuendflammensicherung

Einrichtung zur Regelung bzw. Steuerung der Brennmittelzufuhr fuer Brennersaetze mit Haupt- und Zuendbrenner

Ignition of gas burners

... 984,620. Electric igniters. SIDNEY FLAVEL & CO. Ltd. Feb. 17, 1964 [Feb. 19, 1963; Oct. 3, 1963], Nos. 6577/63 and 38910/63. Heading F4F. An igniter 5 for a gas burner 24, Fig. 2, in which a flame is lit by an electric filament, is fed with gas through a thermally controlled valve 6 actuated by a bi-metallic strip 12 which is heated by a pilot flame from burner 13 lit by the flame of igniter 5 so that when the pilot flame is alight strip 12 closes valve 6 so cutting- off the supply of gas to igniter 5 and causing a pressure-responsive switch 8 to cut the current supply to the igniter filament. A main valve 14 incorporates an auxiliary burner 15 having a nozzle 16, the gas from which being ignited by the pilot flame from burner 13 to produce a flame playing on a bi-metallic strip 17 which when heated opens valve 14 to supply gas to burner 24. In operation, a tap 20 supplies gas to valve 14 and to valve 6 from which it flows to igniter 5 via pressure switch 8 which energizes the filament ...

GAS IGNITION SYSTEMS

... 1424020 Gas burners CONCENTRIC CONTROLS Ltd and JELSON ELECTRIC Ltd 17 July 1974 [25 July 1973] 35392/73 Heading F4T A gas ignition system comprising a spark generator for a pilot burner of the type having a diode rectifier 17, a capacitor 18 and a discharge device 19 and a flame failure device which allows gas to a main burner only when the pilot is lit comprising a valve 4 biased to the closed position and opened by expanding fluid in a probe 7 and chamber 6 is characterized by having an electrical switch 8, 10 which is closed when the valve 4 is open to complete a path to earth in the spark generating circuit such that the current is insufficient to charge up the capacitor and produce sparks for lighting the pilot burner. Several spark gaps may be arranged in parallel and to allow them to spark even though the valve 4 is open, an override is provided which comprises a resistor and a diode rectifier which can be switched into parallel with resistor 16 and diode rectifier 17 thus allowing ...

IGNITION SYSTEM

Burner of gas butane to total combustion

Gasspuergeraet

BURNER CONTROL SYSTEM WITH CYCLING PILOT BURNER

ABSTRACT OF THE DISCLOSURE A gas burner control system in which closure of a space thermostat causes energization of an electromagnetic actuator to supply fuel to a pilot burner and effect the operation of an igniter to ignite it; a thermostatic actuator heated by the pilot flame then effects the flow of fuel to a main burner where it is ignited by the pilot burner. The electromagnetic actuator also jointly controls the flow of fuel to the main burner, so that when the thermostat opens, de-energizing the electromagnetic actuator, fuel flow to the main burner as well as to the pilot burner is immediately cut off.

SPARK IGNITED RECYCLING IGNITION SYSTEM WITH INTERLOCKING GAS VALVE CONTROL

SPARK IGNITED RECYCLING IGNITION SYSTEM WITH INTERLOCKING GAS VALVE CONTROL An ignition system for heating appliances which burn gas or vaporous fuels. A spark igniter is programmed to ignite a pilot burner which in turn ignites a main burner. A flame rod is used to confirm to the control circuitry that pilot ignition has taken place before the main gas valve is opened. An initially closed timing control circuit opens the pilot gas valve but times out if ignition of the pilot does not occur within a predetermined time. Other circuit interlocking features are provided for overall fail-safe operation.

SELF-CONTAINED ELECTRIC IGNITER WITH RECHARGEABLE BATTERY

ABSTRACT OF THE DISCLOSURE A self-contained electric igniter in which the ignition pilot is actuated by a rechargeable battery to supply energy for the spark provided by an igniter. All energy for opening the valve of the main gas valve is supplied by a millivolt thermopile generator which together with additional thermopiles charges the battery. A diode is located in the battery charging line to prevent reverse flow of current from the battery to the thermopiles. The system has a safety valve which closes off flow of gas into the system in the event the pilot burner fails to ignite and a flame switch which closes off the flow of current to the main gas valve and consequent flow of gas into the system in the event the pilot burner is extinguished. It also has a damper control system which is closed when the system is shut off to reduce stand-by losses and conserve energy.

ELECTRIC GAS SHUTOFF VALVE

An electric gas shutoff valve is disclosed. The electric gas shutoff valve includes a breaker body with an inlet channel and an exhaust channel. A gas breaker panel is pivotally connected to a chamber in the breaker body. One end of the gas breaker panel is a channel block while a connection portion on the other end thereof is hooked with a vertical hook mounted in the breaker body. A gas detection unit is arranged outside the breaker body and coupled to a control unit. The control unit is coupled to a drive unit. Once the gas detection unit detects abnormal gas flow during leak caused by pipeline breakage or extinguished gas flame, the control unit activates the drive unit and the vertical hook is further driven to be released from the gas breaker panel. Thus the channel block blocks the exhaust channel and the gas supply is off.

Process and system ignition and extinction remote automatics of the gas radiators

Safety device for its application and gas appliance

Electric lighter for gas combined with safety measures

Monitoring and control device for burners with oil

Process and device for the lighting of a burner

Combustible geyser

Safety device for gas-burner

Lighting of safety, in particular for difficult to reach analogue or gas-burners

High and low flame control for gas burners

Thermostatic device

Burner control system

UEberwachungseinrichtung fuer Gas- und Leichtoelfeuerungen

Bimetall-Zuendsicherung bei Rostbrennern fuer gasbeheizte Wassererhitzer

Zuendsicherung fuer Gasgeraete und -feuerstaetten

Elektrisch steuernde Sicherheitsvorrichtung fuer mit Druckluftzufuehrung oder mit Saugzug betriebene Gas- oder OElfeuerungsanlagen

Automatic ignition for gas appliances with safety device

Safety device for gas appliances

Safety device for installations of mixture of gas and air, gas generators, purifiers of gas of blast furnaces, etc

Improvements in automatic igniters for incandescent gas spouts or other

PERFECTIONNEMENTS AUX DISPOSITIFS DE SECURITE ET DE COMMANDE POUR APPAREILS DE PRODUCTION INSTANTANEE D'EAU CHAUDE PAR LE GAZ FONCTIONNANT SANS VEILLEUSE PERMANENTE

L'INVENTION SE RAPPORTE AUX DISPOSITIFS DE SECURITE ET DE COMMANDE POUR APPAREILS A GAZ FONCTIONNANT SANS VEILLEUSE PERMANENTE. LE PREMIER JEU DE CONTACTS 56, 57 DE MISE SOUS TENSION DE L'ALLUMEUR 23 EST ACTIONNE DIRECTEMENT PAR LA PRESSION DU GAZ QUI S'ETABLIT AU DEBUT D'UN PUISAGE DANS LA CHAMBRE D'ADMISSION GAZ 45 ET LE SECOND JEU DE CONTACTS 60, 61 DE COUPURE DE L'ALLUMEUR EST EGALEMENT ACTIONNE PAR LA PRESSION DE GAZ QUI SE MAINTIENT AU COURS D'UN PUISAGE DANS LA CHAMBRE HAUTE PRESSION 6 DU BOITIER DE COMMANDE 51. APPLICATION AUX APPAREILS A GAZ DU GENRE CHAUFFE-EAU ET CHAUFFE-BAINS INSTANTANES.

Automatic obturator and of safety for the distribution of gas

Ignition device for a gas consumption apparatus

Safety control apparatus for gaseous fuel burners

Spark ignited recycling ignition system with interlocking gas valve control

An ignition system for heating appliances which burn gas or vaporous fuels. A spark igniter is programmed to ignite a pilot burner which in turn ignites a main burner. A flame rod is used to confirm to the control circuitry that pilot ignition has taken place before the main gas valve is opened. An initially closed timing control circuit opens the pilot gas valve but times out if ignition of the pilot does not occur within a predetermined time. Other circuit interlocking features are provided for overall fail-safe operation.

Control for gas cooker ovens

953,982. Valves. SIDNEY FLAVEL & CO. Ltd. March 1, 1963 [March 3, 1962], No. 8320/62. Heading F2V. Gas is continuously supplied to a pilot burner 16 through a restriction 18 the pilot flame crossing a main burner 10 or a lateral orifice connected therewith. A further supply of gas is admitted to the pilot burner 16 through a pipe 19 leading from a time controlled valve, which additional supply causes the length of the pilot flame to increase sufficiently to heat the bi-metallic strip 14 controlling the actuation of a valve 11 in the gas supply to the main burner 10.

GAS BURNER APPARATUS

... 1359994 Gas burners; pilot flame igniters RADIATION Ltd 7 Sept 1971 [7 Sept 1970] 42833/70 Headings F4T and F4F A gas burner apparatus comprises a two-part burner 1 in the form of a single casting divided by a wall 8 to define a main burner 2 with flame ports 9 and a gas injector 5a and an integral heater burner 3 with an injector 6a and flame ports 91 which are directed towards a mercury vapour flame probe 4 controlling a flame failure safety valve 7 in the gas supply line 5 to the main burner so that, in use, the heater burner is first lighted by a permanent pilot 17 and lighting jet 16 and when the probe has been sufficiently heated gas is admitted to the main burner which is in turn ignited by the heater burner. The gas supply system includes a timer control 14, main tap 13 and thermostat 19. In an alternative arrangement the main gas supply line 12 branches, one branch leading via the thermostat 19 to the valve 7 which now acts as the main tap while the other branch which ...

IGNITION AND FLAME MONITORING ARRANGEMENT FOR GAS BURNERS

... 1386017 Gas burner ignition and flame monitor assemblies HARPER-WYMAN CO 8 May 1972 [21 June 1971] 21437/72 Heading F4T [Also in Division F2] A gas burner 12, Fig. 1, e.g. in an oven, has an ignition and flame monitoring assembly which comprises a pilot burner 20 adjacent burner 12, a flame sensor 22 in flame sensing relation to both said port and the pilot burner, and a valve 24 supplied with gas at an inlet 25 and having an outlet 34 feeding the pilot burner and outlet 28 feeding the main burner via a conduit 30 and, if required, a Venturi tube 32, a unitary valve member 48, Fig. 2, being movable in response to sensor 22 sensing a flame to open outlet 28 and then close outlet 34 and being movable to open outlet 34 and close outlet 28 in response to the sensing of flame absence. The sensor 22 comprises a mercury filled bulb connected by a capillary 62 to an expansible diaphragm 60 operable to move a lever 66 and thus move valve member 48 which is urged by a spring 54 to close outlet 28 ...

Improvements in or relating to gas burners and safety igniter circuits and controls therefor

... 765,942. Controlling gas burners. WHIRLPOOL CORPORATION. Jan. 25, 1954, No. 22208/55. Divided out of 765,941 [Group XIII], Class 75(1) ' An ignition and safety control system for a gas burner, e.g. for supplying heated air to the drying drum of a household clothes dryer comprises an electrically operated master valve 135 in series with an electrically operated main valve 136 in the gas supply line to a main burner (not shown), a pilot burner 137 located beside the main burner and connected to the gas supply line between the two electrically operated valves and a flame detector switch 160 adapted to energize the electrically operated main valve 136 to open position in response to a flame at the pilot burner 137. At starting the coil 140 of the master valve 135 is energized to open the valve and supply gas to the pilot burner 137, through contacts 171, 172 of a time switch 170 comprising a warp element heated by a coil 184 disposed in a metal sheath 184b and energized through the cold contact ...

Safety spout

Automatic extinction and ignition process and system remotely of the gas radiators

Safety device especially used for nozzles and gas stoves, by thermo-deforming element

Surveillance device of the flames

IMPROVEMENTS BRING TO THE SAFETY DEVICES HAS NIGHT LIGHT FOR APPARATUSES HAS GAS

Improvements with the control circuits of burners

WATER-HEATING APPARATUS COMPRISING COMBUSTIBLE GAS BURNER, IN PARTICULAR A STORAGE WATER HEATER

An apparatus for heating water comprises a main burner, a pilot burner, a valve assembly with a main valve and a pilot valve having a shutter, a magnetic thermoelectric safety assembly with a thermocouple device holding the pilot valve open in the presence of a flame in the pilot burner, a button member mounted on a rod that is slidingly guided in the valve assembly and an electrical ignition member supplied via an electrical connection circuit, a switch device in the circuit being designed to be switched by means of the button member so as to close the electrical circuit when said button member is pressed in order to carry out actuation of the magnetic assembly so as to open the passage of gas through the pilot valve towards the pilot burner and to ignite the pilot flame by means of the sparks generated by the ignition member. 1. Water-heating apparatus , comprising a combustible gas burner and:{'b': '9', 'a main burner (), having a flame configured to heat water in a storage tank of the apparatus,'}{'b': 10', '9, 'a pilot burner (), which is configured to generate a pilot flame for igniting the main burner (),'}{'b': 11', '13', '14', '9', '15', '17', '14', '13', '10', '19', '14', '14', '10, 'i': 'a', 'a valve assembly (), which comprises a main valve (), arranged on a main pipe () which supplies combustible gas to the main burner (), and a pilot valve (), which has a shutter () and is arranged on said main pipe (), upstream of said main valve (), which supplies gas to the pilot burner (), a pilot pipe () branching off from a portion () of the main pipe () that is interposed between said pilot valve and said main valve in order to supply the gas to the pilot burner (),'}{'b': 20', '21', '15', '10', '22', '23', '11', '17', '15', '22', '23', '23', '17', '15, 'a magnetic thermoelectric safety assembly () with a manual actuating, comprising a thermocouple device () that holds the pilot valve () open in the presence of a flame in the pilot burner (), and a button member ...

GAS CONTROL VALVE FEATURING MAGNETIC CONTROL AND GAS IGNITION SYSTEM HAVING THE SAME

A gas control valve featuring magnetic control and a gas ignition system having the same are disclosed. The gas control valve includes a main body and a magnetic control assembly. The main body has a valve base and a control lever. The control lever is movably connected to the valve base. The magnetic control assembly has a magnetic member and a magnetic control switch. The magnetic member is installed in one of the valve base and the control lever, while the magnetic control switch is installed in the other of the valve base and the control lever. When the control lever moves to an ignition position, the magnetic control switch is affected by the magnetic member and forms a closed circuit. The magnetic control assembly is incorporated in the gas control valve in a modularized manner, and can be easily maintained and repaired. 1. A gas control valve featuring magnetic control , comprising:a main body, having a valve base and a control lever, wherein the control lever is movably connected to the valve base; anda magnetic control assembly, having a magnetic member and a magnetic control switch, wherein the magnetic member is installed on one of the valve base and the control lever, while the magnetic control switch is installed on the other of the valve base and the control lever, so that when the control lever moves to an ignition position, the magnetic control switch is affected by the magnetic member to form a closed circuit.2. The gas control valve of claim 1 , wherein the valve base has an axial hole extending in an axial direction and such receiving the control lever claim 1 , wherein an operating portion of the control lever is exposed outside the valve base claim 1 , and wherein the magnetic control switch is disposed adjacent to the axial hole claim 1 , while the magnetic member is disposed on the operating portion.3. The gas control valve of claim 2 , wherein the valve base has a first notch extending in a transverse direction that is perpendicular to the ...

GAS FLOW CONTROLLER FOR USE IN GAS FIRED APPARATUS

A gas flow controller for use in a gas fired apparatus includes an actuator, a pilot valve operably connected to the actuator, a main burner valve, and a flow controller valve operably connected to the actuator. The pilot valve is moveable from a closed position to an open position by actuation of the actuator to provide selective fluid communication between a gas inlet and a first fluid chamber. The main burner valve provides selective fluid communication between the first fluid chamber and a main burner outlet. The flow controller valve is moveable from a closed position to an open position by actuation of the actuator to provide selective fluid communication between the gas inlet and a back side of the main burner valve to maintain the main burner valve in a closed position when the pilot valve is in the open position.

Ignition burner

FIELD: power industry. SUBSTANCE: ignition burner contains a housing, an igniter, a bimetallic a plate, a solenoid valve, an impulse gas supply tube. Burner is additionally equipped with two microswitches installed above the bimetallic plate, a GSM module with a power supply unit and an air tube connected to the blower fan of the main burner. One of the microswitches is connected to the switch in one contact and the other to the solenoid valve with the possibility to control the solenoid valve of gas fuel supply to the main burner, and the other microswitch with help of contacts is installed in the GSM module with the power supply unit with the possibility of signal transmission to the control room and constant cooling of bimetallic plate by air from fan blower of main burner using an air tube. EFFECT: constant cooling of bimetallic plate of ignition burner, control of burner electric circuit when shut off the supply of gas fuel when the ignition burner goes out, and also the possibility of transmitting the signal to remote control with the help of GSM. 2 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 630 365 C1 (51) МПК F23Q 9/12 (2006.01) F23N 5/04 (2006.01) F23N 5/20 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2016137868, 22.09.2016 (24) Дата начала отсчета срока действия патента: 22.09.2016 (72) Автор(ы): Сердюков Алексей Алексеевич (RU) (73) Патентообладатель(и): Сердюков Алексей Алексеевич (RU) Дата регистрации: (56) Список документов, цитированных в отчете о поиске: RU 2324113 C1, 10.05.2008. RU Приоритет(ы): (22) Дата подачи заявки: 22.09.2016 (45) Опубликовано: 07.09.2017 Бюл. № 25 2 6 3 0 3 6 5 R U (54) ЗАПАЛЬНАЯ ГОРЕЛКА (57) Реферат: Изобретение относится к области энергетики, в частности к запальной горелке, и может быть использовано в устройствах для сжигания газообразного топлива в горелках диффузионнокинетических. Запальная горелка содержит корпус, запальник, биметаллическую ...

Pilot light igniter

Improved device for igniting a gas burner, in particular in household washing machines

Safety device for gas appliances

Ignition device in gas stove

내용 없음. No content.

Thermal safety device for a gas appliance

Gas burner system utilizing safety push button

Safety cutoff for heater

Safety device for gas firing systems

Improvement to safety and control devices for instant water heating by means of gaz in an apparatus devoid of a pilot flame

L'invention se rapporte aux dispositifs de sécurité et de commande pour appareils à gaz fonctionnant sans veilleuse permanente; un premier jeu de contacts de mise sous tension d'un allumeur est actionne directement par la pression du gaz qui s'établit au début d'un puisage dans la chambre d'admission gas et un second jeu de contacts de coupure de l'allumeur est également actionné par la pression de gaz qui se maintient au cours d'un puisage dans la chambre haute-pression d'un boîtier de commande.

Cycling pilot burner control system with safety timing means

ABSTRACT OF THE DISCLOSURE A gas burner control system including a main burner and a pilot burner for igniting the main burner wherein the pilot burner is ignited only when the thermostat is calling for heat and wherein a normally closed bimetal operated safety switch is effective to provide a trial ignition period for igniting the pilot burner. An electrical resistance heater for effecting open-ing of the safety switch is in the gate circuit of a solid state switch and is energized in the absence of pilot burner flame. The solid-state switch, when conducting, is effective to complete an electrical circuit through the safety switch to open a first valve and initiate gas flow to the pilot burner. When pilot burner flame exists, the resistance heater is de-energized, the first valve is held open by means including a switch responsive to gas pressure downstream from the first valve, and a second valve, fluidically in series with the first valve and controlling the flow of gas to the main burner, is opened.

Pressure responsive combustion control apparatus

Gas detector

Safety device for gas appliances

Pilot safety shut off device for gas

With the gas burner safety device of the present invention, downsizing in width and in size, structure simplification, cost reduction, etc. can be achieved. The gas burner safety device comprises a thermo-couple unit 200 having a pair of female terminals 204, 205 connected to a thermal sensitive portion 201 and a first connector 206 to retain the pair of female terminals, and an electromagnetic valve unit 100 having a pair of male terminals 105, 107 connected to a coil 103 for magnetizing, a valve body 111 driven by electromagnetic force generated by powering to the coil, and a second connector 107 which is fitted to the first connector to connect the pair of male terminals and the pair of female terminals, and the pair of male terminals includes a pipe-shaped male terminal 107 which is formed cylindrically and also serves as the second connector, and a pin-shaped male terminal 105 which is disposed inside the pipe-shaped male terminal 107, and the pair of female terminals includes an inner female terminal 204 having a pair of spring pieces which can sandwich the pin-shaped male terminal 105, and an outer fe-male-term-inal-205-h-avin-g-a p-air-of spring pieces which can sandwich the wall face of the pipe-shaped male terminal 107. With this structure, the device can be brought down in width and in size.

Cycling pilot burner control system with pressure switch

ABSTRACT OF THE DISCLOSURE A gas burner control system including a main burner and a pilot burner for igniting the main burner wherein the pilot burner is ignited only when the thermostat is calling for heat and gas is permitted to flow to the main burner only after the existence of a pilot burner flame adequate to ignite the main burner has been proven. A pressure actuated switch is effective, following an electrical power interruption or a failure of or an appreciable reduction in gas pressure, to prevent the resumption of gas flow to the main burner until a pilot burner flame adequate to ignite the main burner has been re-established.

Automatic gas tap closing device with gas tap that can be regulated independently of the closing device

Gas extinguishing safety device

ガス立消え安全装置の幅狭化、小型化、低コスト化等を図る。 感熱部２０１に接続された一対の雌端子２０４，２０５，一対の雌端子を保持する第１コネクタ２０６を有する熱電対ユニット２００と、励磁用のコイル１０３に接続された一対の雄端子１０５，１０７，コイルへの通電により生じる電磁力により駆動される弁体１１１、一対の雄端子を一対の雌端子に接続するべく第１コネクタに嵌合される第２コネクタ１０７を有する電磁弁ユニット１００とを備え、一対の雄端子は、筒状に形成されて第２コネクタを兼ねる筒状雄端子１０７と、筒状雄端子の内側に配置されたピン状雄端子１０５とを含み、一対の雌端子は、ピン状雄端子１０５を挟持し得る一対のバネ片を含む内側雌端子２０４と、筒状雄端子１０７の壁面を挟持し得る一対のバネ片を含む外側雌端子２０５とを含む。これにより、装置の幅狭化、小型化を達成できる。 We will strive to reduce the width, size, and cost of the gas extinguishing safety device. A thermocouple unit 200 having a pair of female terminals 204, 205 connected to the heat-sensitive section 201, a first connector 206 holding the pair of female terminals, and a pair of male terminals 105, 107 connected to the exciting coil 103. , A valve body 111 driven by an electromagnetic force generated by energizing a coil, and an electromagnetic valve unit 100 having a second connector 107 fitted to a first connector to connect a pair of male terminals to a pair of female terminals. The pair of male terminals includes a tubular male terminal 107 formed in a tubular shape and also serving as a second connector, and a pin-shaped male terminal 105 arranged inside the tubular male terminal. An inner female terminal 204 including a pair of spring pieces capable of holding the pin-shaped male terminal 105, and an outer female terminal 205 including a pair of spring pieces capable of holding the wall surface of the cylindrical male terminal 107. As a result, the width and size of the device can be reduced.

Thermoelectric fuse

Safety control apparatus for gaseous fuel burners

Flame failure device

1486317 Burner controls TI DOMESTIC APPLIANCES Ltd 21 Feb 1975 [4 Oct 1974] 43197/74 Addition to 1410009 Heading F4T [Also in Division G3] A flame failure device for controlling a burner comprises a heat-resistant member 1 to be heated by a flame of the burner so that it expands or contracts along a generally rectilinear axis, member 1 being secured at one end to an adjustable member 3 of a pilot valve, a main valve for supplying fuel to the burner and having an inlet 10, a chamber 17 separated from a valve closure 13 by a diaphragm 12 connected to the closure, and connected to the pilot valve by a line 22, the main valve being arranged to open when the pilot valve is closed due to member 1 being heated, and to close when the pilot valve is open on cooling of member 1. The pilot valve may be in the form of a poppet valve 6, Fig. 1, or may take the form of a ball valve 41, Fig. 3. In operation, gas enters at 10, fills chamber 11 and also passes into chamber 17 through a restrictor 28 and out through a jet 7 with valve 13 closed. If a flame is applied to member 1 the latter expands and closes valve 5, 6, so that pressure builds up in chamber 17 and valve 13 opens to supply fuel to the burner. Any loss of pressure from pipe 22 or from the flame-sensing device will lead to closure of the main valve. In a burner installation Fig. 2, gas is supplied to an oven burner 30 from supply 31 via a tap and thermostat 32, a clock controlled valve 33 and a flame failure valve 34 having a heat sensitive unit 36. Ignition may be by spark or pilot flame.

Improved perfections in gas heated appliances, particularly provided with electric control. (Machine-translation by Google Translate, not legally binding)

Perfections provided in gas heated appliances, particularly provided with electric control, according to which these devices are equipped with a pilot burner circuit, capable of acting successively for the ignition of the burners and for safety; means for ensuring its power after the ignition of said pilot and opening of the main circuit, whose means comprise, in particular, a double feed, obtained first by means of an ignition command, the second then being obtained with the help of a thermosensitive safety-influenced device by the flame of the pilot, to ensure at the same time the admission of gas for its use and for the said second supply, after which the ignition command may be disconnected and the first supply interrupted. (Machine-translation by Google Translate, not legally binding)

Waist-high broiler for off-grid propane gas range appliance

The invention relates to an off-grid propane gas range appliance incorporating a waist-high broiler, the gas range operating without electricity in off-grid applications. The off-grid propane gas range appliance comprises an oven compartment having a first heating element or baking burner arranged at the bottom of the oven compartment and a second heating element or a broiling burner arranged at the top of the oven compartment eliminating the need for a separate broiler drawer. The first and second heating elements are arranged and connected to the main gas manifold of the gas range so that only one of the heating elements is operable at a single time.

Ignition device for gas-heated devices

Improvements in or relating to gas burners

743,307. Gas burners. BRITISH THERMOSTAT CO., Ltd., Sept. 30, 1954 [Nov. 3, 1953], No. 30362/53. Class 75(1). [Also in Group XXIX] In a gas burner of the kind including a valve 5 actuated by a thermally sensitive element, such as a bi-metallie element 9 of disc, straight or U-form, to interrupt the flow of fuel in the event of the flame being extinguished and in which the gas is injected by a jet orifice 17 into a mixing tube 18 and induces a flow of air, the jet orifice is disposed within the mixing tube so as to be sheltered from falling particles of soot, dust, &c. and extends in a horizontal or downward direction, and the valve 5 and bimetallic disc 9 are housed within the burner structure. The jet orifice 17 is formed on the end of a pipe 15 extending from the valve 5 and is secured concentrically within one end of the mixing tube 18 by tongues 20 on the mixing tube engaging the pipe 15, the slots 21 between the tongues allowing the entrance of air. The mixing tube is a sliding fit in an aperture 19 in the wall of a cylindrical mixing chamber 12 and is located by a tongue 22 on a deflector ring 23 in the mixing chamber engaging a slot 24 in the mixing tube. The top of the mixing chamber is closed by a perforated cap 25 and the flame is spread by a member 28. The bottom of the mixing chamber is closed by a shallow compartment 10 housing the bi-metallic disc 9 and comprising two circular dished plates 11 between the peripheries of which the disc is located. The lower of the plates is of larger diameter than the upper and is peened over an external flange 13 on the mixing chamber. The valve 5 is mounted in a vertically disposed cylindrical casing 1, the upper end of which is peened over the edge of a central aperture in the lower plate of the compartment 10 housing the bi-metallic disc 9 and the upper end of the valve projects through the upper open end of the valve casing and is pressed by a spring 7 into engagement with the under surface of the disc. The ...

Safety burner control

Improvements to gas heaters, especially pressurized liquefied gas radiators

Improvements in or relating to valves or cocks for regulating gas flames

262,361. Schl³sselburg, G. June 8, 1925. Fluid-actuated valves; closure members, dual. -A safety cut-off device for gas burners of the kind adapted to close in the event of the flame being extinguished has a dual closure supplementary valve adapted to be rotated manually to obtain an initial supply and lifted by thermally actuated means to maintain the supply. The main cock 1 is actuated by a handle 8 carried by a spindle 7 rotatably mounted in the main plug and provided with a plate having a segmental recess adapted to co-operate with a projection 6 on a member 2 secured to the plug 1. The supplementary valve 9 is rotated by a pair of pins 11 engaging sockets in the spindle 7 and is pressed towards a conical seat in the main plug by a spring 10. A capsule 1 adjustably mounted in a support 20 is connected to a chamber 14 arranged in proximity to the burner, so that when the burner is alight the expansion of the air in the chamber 14 and capsule 16 raises the valve 9 from its seat. To light the burner the valve 9 is rotated against the action of a spring 12, which returns it to its closed position when the hand is removed.

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Perfezionamento nei bruciatori per gas

ガスバ−ナ装置

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

연소기의 파일럿 버너 안전장치

湯沸器における押ぼたん式操作装置

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Vorrichtung zum selbsttaetigen Schliessen des Haupthahnes beim Verloeschen der Gasflamme mit Hilfe des elektrischen Stromes

Circuito di controllo di accensione di combustibile

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Selbsttaetige steuer- und ueberwachungsvorrichtung fuer gasbrenner

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Zuendbrennerventil fuer Gase mittlerer Druecke

Rohrhalter, insbesondere fuer Zuendbrennerrohre an Gas-Wasserheizern

Zuendsicherung fuer Gasbrenner, insbesondere fuer Gas-Wasserheizer

Sicherheitsvorrichtung fuer gasbeheizte Geraete

Sicherheitsvorrichtung fuer Gasbrenner

Waermespreiz fuer Gasapparate

Zuendsicherung fuer Gasgeraete, insbesondere Gas-Wasserheizer

Switch actuating mechanism

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Dispositif d'allumage pour appareils à combustible gazeux, comportant une rampe, unbrûleur, ou des éléments analogues

Sicherheitsventil fuer gasbeheizte Geraete

Selbsttaetige Gashahnschliessvorrichtung

Vorrichtung zum Befestigen einer Bimetall-Zuendsicherung an dem Verteilerrohr eines gasbrenners

Zündsicherung für gasbeheizte Geräte

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Gashahn

Anordnung bei Zuendsicherungen, vorzugsweise bei Gaswassererhitzern

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Selbsttaetige Zuendsicherungs- und Steuereinrichtung fuer Gasbrenneranlagen mit Zuendflammen- und Hauptgasbrenner

Sicherheitsventil fuer den Brenner von Gasleitungen

Zuendvorrichtung fuer Gasoefen, insbesondere Gasbadeoefen

Zuendbrenneranordnung bei Gasgeraeten

Burner and ignition controller with purging period

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1,084,172. Valves. H. VAILLANT, [trading as JOH. VAILLANT KOMM. GES.]. Feb. 10, 1965 [Feb. 11, 1964], No. 5723/65. Heading F2V. [Also in Division F4] The pilot valve closure member 5<SP>1</SP> of a gas water heater is urged to closure by a spring 6 (Fig. 1) and has a depending stem 11 which abuts a lever 7 pivoted at 8, the lever carrying the housing 12 of a micro-switch connected to the solenoid (not shown) of the main gas valve, and contacting the stem 10<SP>1</SP> of the armature 3 of an electromagnet 2. A second lever 7<SP>1</SP> is pivoted at 8 and supports the plunger 13 of the mioroswitch and abuts the stem 4 of a control knob; a spring 9 urges the two levers apart but is weaker than spring 6. In operation, when the knob is depressed the two levers rotate without relative movement, the armature abuts the electromagnet and the pilot valve opens (Fig. 2). The heat of the pilot flame acts on a thermoelectric device to energize the magnet and when the knob is released lever 7<SP>1</SP> returns under the action of spring 9 and the plunger 13 allows the microswitch to close thereby opening the main valve. Should the pilot flame be extinguished, the pilot valve closes under the action of spring 6 and the lever system returns to the position of Fig. 1 to open the microswitch. In alternative embodiments (Fig. 3, not shown), the housing 12 is mounted on lever 7<SP>1</SP> and the plunger 13 abuts lever 7; alternatively the levers extend beyond their pivot and one or two microswitches are provided on the extensions.

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Regler fuer Heizmittelbrenner zur Beheizung von geschlossenen Raeumen

Sicherheitszuendvorrichtung fuer Gasbrenner

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착화버너(Pilot Burner)의 연소조절장치

Sicherheitsvorrichtung fuer alle Apparate, die einen Gasbrenner besitzen