EP1326050A1 - Gas device with sliding nozzle - Google Patents

Gas device with sliding nozzle Download PDF

Info

Publication number
EP1326050A1
EP1326050A1 EP03290012A EP03290012A EP1326050A1 EP 1326050 A1 EP1326050 A1 EP 1326050A1 EP 03290012 A EP03290012 A EP 03290012A EP 03290012 A EP03290012 A EP 03290012A EP 1326050 A1 EP1326050 A1 EP 1326050A1
Authority
EP
European Patent Office
Prior art keywords
gas
injector
casing
outlet orifice
burner
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP03290012A
Other languages
German (de)
French (fr)
Inventor
Daniel Bouvier
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Compagnie des Gaz de Petrole Primagaz SA
Original Assignee
Compagnie des Gaz de Petrole Primagaz SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Compagnie des Gaz de Petrole Primagaz SA filed Critical Compagnie des Gaz de Petrole Primagaz SA
Publication of EP1326050A1 publication Critical patent/EP1326050A1/en
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/46—Details, e.g. noise reduction means
    • F23D14/62—Mixing devices; Mixing tubes
    • F23D14/64—Mixing devices; Mixing tubes with injectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/28—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid in association with a gaseous fuel source, e.g. acetylene generator, or a container for liquefied gas
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/46—Details, e.g. noise reduction means
    • F23D14/48—Nozzles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2900/00—Special features of, or arrangements for burners using fluid fuels or solid fuels suspended in a carrier gas
    • F23D2900/14—Special features of gas burners
    • F23D2900/14481—Burner nozzles incorporating flow adjusting means

Definitions

  • the present invention relates to gas appliances, in particular with liquefied petroleum gas, comprising a burner supplied by a injector.
  • gas appliances in particular with liquefied petroleum gas, comprising a burner supplied by a injector.
  • These devices can be stoves, lamps, torches and others.
  • FR 1 368 185 describes a valve box for bottles with liquefied gas allowing to feed indifferently, from gas cylinders at various pressures, such as propane and butane, the same device receiver.
  • the valve box regulates the flow rates by transposing the stroke of the pressures in the ratio of the diameters of a differential piston.
  • FR 1 508 276 describes a supply nozzle for a burner gas can be used equally on devices supplied with butane or propane.
  • the invention relates to a gas appliance which is very simple to manufacture and which can be connected either to a gas source having a first vapor pressure or another source of gas having a second voltage vapor different from the first.
  • the invention therefore relates to a gas appliance, in particular a liquefied petroleum gas according to claim 1.
  • the size of the outlet openings and in particular their diameter, easily and automatically adapts to the gas source.
  • the first gas is in particular butane and the second gas propane.
  • the axis of the burner is vertical which implies that the injector is subjected to the force of gravity and moves in depending on its weight and the forces applied to it by the gas of liquefied petroleum, namely, pressure and also variation in flow.
  • German patent application No. 3700233 (Buderus), we describes a device in which the injector 2 is subjected to the action of a gas relaxed from 20 to 50 millibar and the force applied by a spring 3. There are thus antagonism only between the forces of pressure and the forces of the spring, while, according to the invention, there is in addition to an antagonism of pressure forces and the force of gravity, a force due to the variation of flow, which causes the secondary injector 6 to rise suddenly.
  • the invention has the advantages of not requiring a precise calibrated spring practically impossible in fact to produce in large series in injector diameters of about 10 mm, and expensive. She does not also does not require precise machining so that the injector does not get stuck not in the upward movement, on the one hand because there is an interval between them and on the other hand, because the injector is not subject to the action of a spring which can be misaligned.
  • the envelope can be in particular cylindrical and the secondary injector have a polygonal cross section inscribed in the envelope section.
  • sealing means acting are provided between the casing and the secondary injector in the second position. These means sealants ensure as much as possible that propane does not pass directly through the main outlet port without first passing through the secondary outlet which limits the flow.
  • the stove shown in Figure 1 includes a body 1 with vertical axis defining a burner 2, which communicates through an orifice 3 main outlet with the inside of an envelope 4, which has a part conical upper into which opens the main orifice 3 and a part cylindrical which opens downwards through a fitting 5 inlet into a cylinder B of liquefied petroleum gas.
  • the part of the envelope 4 in which slides the injector Secondary 6 has a circular section, while the injector section 6 secondary is polygonal by being inscribed in the section of envelope 4 so that there are gaps 8 between the casing 4 and the injector 6 secondary, intervals 8 by which gas from cylinder B and inlet 5 connector can go directly to the main outlet port 3 without pass through the secondary outlet orifice 7 when the secondary injector 6 is, under the effect of gravity, in the lowest position near the bottle B.
  • the diameter of the secondary outlet orifice 7 is smaller than that of the main outlet 3.
  • the secondary injector 6 has a central chimney 9 connecting the secondary outlet orifice 7 and the connector 5 of the bottle.
  • An O-ring 10 is also provided which, in the second position shown in Figure 1, applies to the frustoconical part envelope 4 and thus prevents gas from coming directly from the bottle B via connection 5 and gap 8 at main outlet 3. In however, when the secondary injector 6 is in the lower or first position position, the O-ring 10 moves away from the wall of the casing 4 and allows butane gas from a cylinder B arriving directly at port 3 main output.
  • the main injector 6 takes the position shown in the figure and the propane can only reach outlet 3 by first passing through secondary outlet 7 of smaller diameter and therefore with a flow rate less.

Abstract

The gas apparatus consists of a burner (2) fed by a main injector in the form of a housing (4) with an outlet orifice (3) and an inlet coupling (5) for connecting to a gas source (B), The housing contains a secondary injector (6) with a smaller outlet orifice (7) for a second gas (propane) at a higher vapour pressure than the first (butane). The burner has a vertical axis, and there is a gap (8) and seal (10) between the cylindrical shell and the secondary injector, which has a polygonal cross-section.

Description

La présente invention se rapporte aux appareils à gaz, notamment à gaz de pétrole liquéfié, comprenant un brûleur alimenté par un injecteur. Ces appareils peuvent être des réchauds, des lampes, des chalumeaux et autres.The present invention relates to gas appliances, in particular with liquefied petroleum gas, comprising a burner supplied by a injector. These devices can be stoves, lamps, torches and others.

Le FR 1 368 185 décrit une boíte à clapet pour bouteilles à gaz liquéfié permettant d'alimenter indifféremment, à partir de bouteilles à gaz à pressions variées, telles que le propane et le butane, un même appareil récepteur. La boíte à clapet régularise les débits en transposant la course des pressions dans le rapport des diamètres d'un piston différentiel.FR 1 368 185 describes a valve box for bottles with liquefied gas allowing to feed indifferently, from gas cylinders at various pressures, such as propane and butane, the same device receiver. The valve box regulates the flow rates by transposing the stroke of the pressures in the ratio of the diameters of a differential piston.

Le FR 1 508 276 décrit un gicleur d'alimentation pour brûleur à gaz pouvant être utilisé indifféremment sur des appareils alimentés en butane ou en propane.FR 1 508 276 describes a supply nozzle for a burner gas can be used equally on devices supplied with butane or propane.

L'invention vise un appareil à gaz très simple à fabriquer et qui peut être raccordé au choix à une source de gaz ayant une première tension de vapeur ou à une autre source de gaz ayant une seconde tension de vapeur différente de la première.The invention relates to a gas appliance which is very simple to manufacture and which can be connected either to a gas source having a first vapor pressure or another source of gas having a second voltage vapor different from the first.

L'invention a donc pour objet un appareil à gaz, notamment un gaz de pétrole liquéfié, suivant la revendication 1.The invention therefore relates to a gas appliance, in particular a liquefied petroleum gas according to claim 1.

La dimension des orifices de sortie, et notamment leur diamètre, s'adapte ainsi facilement et automatiquement à la source de gaz.The size of the outlet openings, and in particular their diameter, easily and automatically adapts to the gas source.

Le premier gaz est notamment du butane et le second du propane.The first gas is in particular butane and the second gas propane.

Suivant l'invention, l'axe du brûleur est vertical ce qui implique que l'injecteur est soumis à la force de gravité et se déplace en fonction de son poids et des forces qui lui sont appliquées par le gaz de pétrole liquéfié, à savoir, la pression et aussi la variation de débit.According to the invention, the axis of the burner is vertical which implies that the injector is subjected to the force of gravity and moves in depending on its weight and the forces applied to it by the gas of liquefied petroleum, namely, pressure and also variation in flow.

A la demande de brevet allemand n° 3700233 (Buderus), on décrit un dispositif dans lequel l'injecteur 2 est soumis à l'action d'un gaz détendu de 20 à 50 millibar et de la force appliquée par un ressort 3. Il y a ainsi antagonisme seulement entre les forces de pression et les forces du ressort, alors que, suivant l'invention, il y a en plus d'un antagonisme des forces de pression et de la force de gravité, une force due à la variation de débit, qui fait que brusquement l'injecteur 6 secondaire monte.In German patent application No. 3700233 (Buderus), we describes a device in which the injector 2 is subjected to the action of a gas relaxed from 20 to 50 millibar and the force applied by a spring 3. There are thus antagonism only between the forces of pressure and the forces of the spring, while, according to the invention, there is in addition to an antagonism of pressure forces and the force of gravity, a force due to the variation of flow, which causes the secondary injector 6 to rise suddenly.

L'invention présente les avantages de ne pas nécessiter un ressort taré précis pratiquement impossible en fait à réaliser en grande série dans les diamètres d'injecteurs de 10 mm environ, et coûteux. Elle ne nécessite pas non plus un usinage précis pour que l'injecteur ne se coince pas dans le mouvement de translation vers le haut, d'une part parce qu'il y a un intervalle entre eux et d'autre part, parce que l'injecteur n'est pas soumis à l'action d'un ressort qui peut être désaligné.The invention has the advantages of not requiring a precise calibrated spring practically impossible in fact to produce in large series in injector diameters of about 10 mm, and expensive. She does not also does not require precise machining so that the injector does not get stuck not in the upward movement, on the one hand because there is an interval between them and on the other hand, because the injector is not subject to the action of a spring which can be misaligned.

De préférence, l'enveloppe peut être notamment cylindrique et l'injecteur secondaire avoir une section transversale polygonale inscrite dans la section de l'enveloppe.Preferably, the envelope can be in particular cylindrical and the secondary injector have a polygonal cross section inscribed in the envelope section.

De préférence, il est prévu des moyens d'étanchéité agissant entre l'enveloppe et l'injecteur secondaire en la seconde position. Ces moyens d'étanchéité permettent d'assurer au mieux que du propane ne passe pas directement par l'orifice principal de sortie sans être passé au préalable par l'orifice secondaire de sortie qui en limite le débit.Preferably, sealing means acting are provided. between the casing and the secondary injector in the second position. These means sealants ensure as much as possible that propane does not pass directly through the main outlet port without first passing through the secondary outlet which limits the flow.

Au dessin annexé donné uniquement à titre d'exemple :

  • la figure 1 est une vue en coupe d'un réchaud suivant l'invention et
  • la figure 2 est une vue en coupe suivant la ligne II-II de la figure 1.
    • In the attached drawing given only by way of example:
  • Figure 1 is a sectional view of a stove according to the invention and
  • Figure 2 is a sectional view along line II-II of Figure 1.

    • Le réchaud représenté à la figure 1 comprend un corps 1 d'axe vertical définissant un brûleur 2, qui communique par un orifice 3 principal de sortie avec l'intérieur d'une enveloppe 4, qui a une partie supérieure conique dans laquelle débouche l'orifice 3 principal et une partie cylindrique qui débouche vers le bas par un raccord 5 d'entrée dans une bouteille B de gaz de pétrole liquéfié.The stove shown in Figure 1 includes a body 1 with vertical axis defining a burner 2, which communicates through an orifice 3 main outlet with the inside of an envelope 4, which has a part conical upper into which opens the main orifice 3 and a part cylindrical which opens downwards through a fitting 5 inlet into a cylinder B of liquefied petroleum gas.

    A l'intérieur de l'enveloppe 4 est monté librement coulissant un injecteur 6 secondaire ayant un orifice 7 secondaire de sortie. Comme le montre la figure 2, la partie de l'enveloppe 4 dans laquelle coulisse l'injecteur 6 secondaire a une section circulaire, tandis que la section de l'injecteur 6 secondaire est polygonale en étant inscrite dans la section de l'enveloppe 4 en sorte qu'il est ménagé des intervalles 8 entre l'enveloppe 4 et l'injecteur 6 secondaire, intervalles 8 par lesquels du gaz provenant de la bouteille B et du raccord 5 d'entrée peut aller directement à l'orifice 3 principal de sortie sans passer par l'orifice 7 secondaire de sortie lorsque l'injecteur 6 secondaire est, sous l'effet de la gravité, dans la position la plus basse proche de la bouteille B.Inside the casing 4 is mounted to slide freely a secondary injector 6 having a secondary outlet orifice 7. As the shows figure 2, the part of the envelope 4 in which slides the injector Secondary 6 has a circular section, while the injector section 6 secondary is polygonal by being inscribed in the section of envelope 4 so that there are gaps 8 between the casing 4 and the injector 6 secondary, intervals 8 by which gas from cylinder B and inlet 5 connector can go directly to the main outlet port 3 without pass through the secondary outlet orifice 7 when the secondary injector 6 is, under the effect of gravity, in the lowest position near the bottle B.

    Le diamètre de l'orifice 7 secondaire de sortie est plus petit que celui de l'orifice 3 principal de sortie. The diameter of the secondary outlet orifice 7 is smaller than that of the main outlet 3.

    L'injecteur 6 secondaire comporte une cheminée 9 centrale mettant en communication l'orifice 7 secondaire de sortie et le raccord 5 de la bouteille. Il est prévu également un joint 10 torique d'étanchéité qui, dans la seconde position représentée à la figure 1, s'applique à la partie tronconique de l'enveloppe 4 et empêche ainsi que du gaz ne parvienne directement de la bouteille B par le raccord 5 et l'intervalle 8 à l'orifice 3 principal de sortie. En revanche, lorsque l'injecteur 6 secondaire est en position basse, ou première position, le joint 10 torique s'écarte de la paroi de l'enveloppe 4 et permet à du gaz butane provenant d'une bouteille B d'arriver directement à l'orifice 3 principal de sortie.The secondary injector 6 has a central chimney 9 connecting the secondary outlet orifice 7 and the connector 5 of the bottle. An O-ring 10 is also provided which, in the second position shown in Figure 1, applies to the frustoconical part envelope 4 and thus prevents gas from coming directly from the bottle B via connection 5 and gap 8 at main outlet 3. In however, when the secondary injector 6 is in the lower or first position position, the O-ring 10 moves away from the wall of the casing 4 and allows butane gas from a cylinder B arriving directly at port 3 main output.

    En raison du fait que la tension de vapeur du propane est bien plus élevée que celle du butane, lorsque la bouteille B contient du propane, l'injecteur 6 principal prend la position représentée à la figure et le propane ne peut atteindre l'orifice 3 de sortie qu'en passant d'abord par l'orifice 7 secondaire de sortie de moindre diamètre et donc avec un débit moindre.Due to the fact that the vapor pressure of propane is much higher than that of butane, when bottle B contains propane, the main injector 6 takes the position shown in the figure and the propane can only reach outlet 3 by first passing through secondary outlet 7 of smaller diameter and therefore with a flow rate less.

    Claims (4)

    Appareil à gaz, notamment à gaz de pétrole liquéfié, comprenant un brûleur (2) alimenté par un injecteur principal formé d'une enveloppe (4) ayant un orifice (3) principal de sortie et un raccord (5) d'entrée destiné à être raccordé à une source (B) de gaz, et par un injecteur (6) secondaire guidé dans l'enveloppe (4) ayant un orifice (7) secondaire de sortie et monté coulissant à l'intérieur de l'enveloppe (4) entre une première position lorsque la source (B) de gaz contient un premier gaz ayant une première tension de vapeur, dans laquelle le raccord (5) d'entrée communique directement avec l'orifice (3) principal de sortie et une seconde position lorsque la source de gaz contient un second gaz ayant une deuxième tension de vapeur plus élevée que la première tension de vapeur, dans laquelle le raccord (5) d'entrée ne communique avec l'orifice (3) principal de sortie que par l'intermédiaire de l'orifice (7) secondaire de sortie, la dimension de l'orifice (7) secondaire de sortie étant plus petite que celle de l'orifice (3) principal de sortie, caractérisé en ce que l'axe du brûleur (2) est vertical et au moins un intervalle (8) est ménagé entre l'enveloppe (4) et l'injecteur (6) secondaire .Gas appliance, in particular for liquefied petroleum gas, comprising a burner (2) supplied by a main injector formed by a casing (4) having a main outlet orifice (3) and an inlet fitting (5) intended for be connected to a gas source (B), and by a secondary injector (6) guided in the casing (4) having a secondary outlet orifice (7) and mounted sliding inside the casing (4) between a first position when the gas source (B) contains a first gas having a first vapor pressure, in which the inlet fitting (5) communicates directly with the main outlet orifice (3) and a second position when the gas source contains a second gas having a second vapor pressure higher than the first vapor voltage, in which the inlet fitting (5) communicates with the main outlet orifice (3) only via of the secondary outlet orifice (7), the dimension of the orifice (7) secondary outlet being smaller than that of the main outlet orifice (3), characterized in that the axis of the burner (2) is vertical and at least one gap (8) is formed between the casing (4) and the secondary injector (6). Appareil suivant la revendication 1, caractérisé en ce que le premier gaz est du butane et le second gaz est du propane.Apparatus according to claim 1, characterized in that the first gas is butane and the second gas is propane. Appareil suivant la revendication 1 ou 2, caractérisé en ce que l'enveloppe (4) est cylindrique et l'injecteur (6) secondaire a une section transversale polygonale inscrite dans la section de l'enveloppe.Apparatus according to claim 1 or 2, characterized in that the casing (4) is cylindrical and the secondary injector (6) has a polygonal cross section inscribed in the section of the casing. Appareil suivant l'une des revendications précédentes, caractérisé en ce qu'il est prévu des moyens (10) d'étanchéité entre l'enveloppe (4) et l'injecteur (6) secondaire, qui sont agissant en la seconde position.Apparatus according to one of the preceding claims, characterized in that sealing means (10) are provided between the casing (4) and the secondary injector (6), which act in the second position.
    EP03290012A 2002-01-08 2003-01-03 Gas device with sliding nozzle Withdrawn EP1326050A1 (en)

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    FR0200148 2002-01-08
    FR0200148A FR2834547B1 (en) 2002-01-08 2002-01-08 SLIDING INJECTOR GAS APPLIANCE

    Publications (1)

    Publication Number Publication Date
    EP1326050A1 true EP1326050A1 (en) 2003-07-09

    Family

    ID=8871189

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP03290012A Withdrawn EP1326050A1 (en) 2002-01-08 2003-01-03 Gas device with sliding nozzle

    Country Status (2)

    Country Link
    EP (1) EP1326050A1 (en)
    FR (1) FR2834547B1 (en)

    Cited By (12)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    WO2011156427A3 (en) * 2010-06-07 2013-04-25 David Deng Heating system
    US8985094B2 (en) 2011-04-08 2015-03-24 David Deng Heating system
    US9022064B2 (en) 2012-05-10 2015-05-05 David Deng Dual fuel control device with auxiliary backline pressure regulator
    US9222670B2 (en) 2010-12-09 2015-12-29 David Deng Heating system with pressure regulator
    US9423123B2 (en) 2013-03-02 2016-08-23 David Deng Safety pressure switch
    US9739389B2 (en) 2011-04-08 2017-08-22 David Deng Heating system
    US9752782B2 (en) 2011-10-20 2017-09-05 David Deng Dual fuel heater with selector valve
    US9752779B2 (en) 2013-03-02 2017-09-05 David Deng Heating assembly
    US10073071B2 (en) 2010-06-07 2018-09-11 David Deng Heating system
    US10222057B2 (en) 2011-04-08 2019-03-05 David Deng Dual fuel heater with selector valve
    US10240789B2 (en) 2014-05-16 2019-03-26 David Deng Dual fuel heating assembly with reset switch
    US10429074B2 (en) 2014-05-16 2019-10-01 David Deng Dual fuel heating assembly with selector switch

    Citations (5)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    FR1194584A (en) * 1958-04-11 1959-11-10 Improvements to adjustable gas injectors
    DE1959677B1 (en) * 1969-11-28 1971-05-06 Wiest Fa Richard NOZZLE FOR ALL GAS BURNERS
    DE3700233A1 (en) * 1987-01-07 1988-07-21 Buderus Ag Nozzle in atmospheric gas burners
    US5025990A (en) * 1989-10-12 1991-06-25 Universal Enterprises, Inc. Adjustable gas nozzle
    DE19543018A1 (en) * 1995-11-18 1997-05-22 Stiebel Eltron Gmbh & Co Kg Regulator for gas burner and its nozzle

    Family Cites Families (3)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    FR1368185A (en) 1963-06-10 1964-07-31 Applic Gaz Sa Improvements to valve boxes for liquefied gas cylinders
    FR1508276A (en) 1966-11-14 1968-01-05 Applic Gaz Sa Improvements to feed jets for gas burners
    EP0522913B1 (en) 1991-06-28 1996-12-27 U.S. Divers Company, Inc. Regulator with improved high pressure seat

    Patent Citations (5)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    FR1194584A (en) * 1958-04-11 1959-11-10 Improvements to adjustable gas injectors
    DE1959677B1 (en) * 1969-11-28 1971-05-06 Wiest Fa Richard NOZZLE FOR ALL GAS BURNERS
    DE3700233A1 (en) * 1987-01-07 1988-07-21 Buderus Ag Nozzle in atmospheric gas burners
    US5025990A (en) * 1989-10-12 1991-06-25 Universal Enterprises, Inc. Adjustable gas nozzle
    DE19543018A1 (en) * 1995-11-18 1997-05-22 Stiebel Eltron Gmbh & Co Kg Regulator for gas burner and its nozzle

    Cited By (18)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    WO2011156427A3 (en) * 2010-06-07 2013-04-25 David Deng Heating system
    EP2584258A3 (en) * 2010-06-07 2013-06-12 David Deng Heating system
    WO2011156428A3 (en) * 2010-06-07 2013-07-11 David Deng Heating system
    US8752541B2 (en) 2010-06-07 2014-06-17 David Deng Heating system
    US8851065B2 (en) 2010-06-07 2014-10-07 David Deng Dual fuel heating system with pressure sensitive nozzle
    US10073071B2 (en) 2010-06-07 2018-09-11 David Deng Heating system
    US9021859B2 (en) 2010-06-07 2015-05-05 David Deng Heating system
    US9222670B2 (en) 2010-12-09 2015-12-29 David Deng Heating system with pressure regulator
    US9739389B2 (en) 2011-04-08 2017-08-22 David Deng Heating system
    US8985094B2 (en) 2011-04-08 2015-03-24 David Deng Heating system
    US10222057B2 (en) 2011-04-08 2019-03-05 David Deng Dual fuel heater with selector valve
    US9752782B2 (en) 2011-10-20 2017-09-05 David Deng Dual fuel heater with selector valve
    US9022064B2 (en) 2012-05-10 2015-05-05 David Deng Dual fuel control device with auxiliary backline pressure regulator
    US9423123B2 (en) 2013-03-02 2016-08-23 David Deng Safety pressure switch
    US9518732B2 (en) 2013-03-02 2016-12-13 David Deng Heating assembly
    US9752779B2 (en) 2013-03-02 2017-09-05 David Deng Heating assembly
    US10240789B2 (en) 2014-05-16 2019-03-26 David Deng Dual fuel heating assembly with reset switch
    US10429074B2 (en) 2014-05-16 2019-10-01 David Deng Dual fuel heating assembly with selector switch

    Also Published As

    Publication number Publication date
    FR2834547A1 (en) 2003-07-11
    FR2834547B1 (en) 2006-08-04

    Similar Documents

    Publication Publication Date Title
    EP1326050A1 (en) Gas device with sliding nozzle
    CA1065150A (en) Reducing valve for gas lighter
    FR2919003A1 (en) TAP TIP
    EP0157702A2 (en) Plasma torch for soldering or cutting
    FR2706051A1 (en) Gas distribution control assembly and gas cylinder equipped with such an assembly.
    FR2601665A1 (en) SEPARATE AIR RETURN FILLING DEVICE
    WO2006048536A1 (en) Low-pressure flow-controlled powder spreader
    TW200506248A (en) Rapid-opening pressure-regulating valve and the fire extinguisher, high-pressure gas storage bottle and fluid rapid supply device utilizing the same
    CH675459A5 (en)
    FR3025279A1 (en) VALVE CONNECTOR FOR A VALVE OF AN INFLATION DEVICE, AND ADAPTER COMPRISING THE SAME
    FR2727734A1 (en) Control valve with two flow characteristic, used in industrial and heating purposes
    EP1267126A3 (en) Heater and glow plug
    EP0154802A1 (en) Percussion tool
    EP2211097A2 (en) Double gas burner
    EP2216595A2 (en) Gas burner
    FR2557256A1 (en) CONNECTING UNIT
    EP0225825A1 (en) Gas cooking device
    EP0947754B1 (en) Pulse-controlled electromagnetic hydraulic valve
    FR2488815A1 (en) LIQUID SPRAYING DEVICE AND ITS APPLICATIONS
    FR2681386A1 (en) HYDROPNEUMATIC BLOCK PROVIDED WITH A HYDROPNEUMATIC MEMBRANE ACCUMULATOR AND A DISSYMETRIC SHOCK ABSORBER.
    FR2692338A1 (en) Hydraulic component mounting device such as a pump body and support for such a device.
    BE1005357A3 (en) Tap for beer or other consumable beverages or liquids containing dissolvedcarbon dioxide
    EP0133390A1 (en) Nozzle for spraying a fluid or a paste with controllable slit
    EP0833582B1 (en) Multi-path control valve for hot beverage machine, particularly a coffee machine, provided with a low pressure boiler
    FR2878939A1 (en) DEVICE AND METHOD FOR GAS SUPPLYING A BURNER FROM A COOKING APPARATUS

    Legal Events

    Date Code Title Description
    PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

    Free format text: ORIGINAL CODE: 0009012

    AK Designated contracting states

    Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT SE SI SK TR

    AX Request for extension of the european patent

    Extension state: AL LT LV MK RO

    17P Request for examination filed

    Effective date: 20040109

    AKX Designation fees paid

    Designated state(s): BE DE FR GB IT NL

    17Q First examination report despatched

    Effective date: 20040303

    STAA Information on the status of an ep patent application or granted ep patent

    Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

    18D Application deemed to be withdrawn

    Effective date: 20130801