US3817689A - Gas burner having lateral openings and a device for deflecting the flames upwards - Google Patents

Gas burner having lateral openings and a device for deflecting the flames upwards Download PDF

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Publication number
US3817689A
US3817689A US30677572A US3817689A US 3817689 A US3817689 A US 3817689A US 30677572 A US30677572 A US 30677572A US 3817689 A US3817689 A US 3817689A
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United States
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cover
deflector
mixing chamber
means
gas burner
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Expired - Lifetime
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M Capy
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Co Europ Equipement Menager Ce
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Publication date
Priority to FR7140801A priority Critical patent/FR2161142A6/fr
Application filed by Co Europ Equipement Menager Ce filed Critical Co Europ Equipement Menager Ce
Priority claimed from US45669974 external-priority patent/US3921913A/en
Application granted granted Critical
Publication of US3817689A publication Critical patent/US3817689A/en
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Application status is Expired - Lifetime legal-status Critical

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23DBURNERS
    • F23D14/00Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/02Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone
    • F23D14/04Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner
    • F23D14/06Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner with radial outlets at the burner head
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23DBURNERS
    • F23D14/00Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/26Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid with provision for a retention flame
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23DBURNERS
    • F23D14/00Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/46Details, e.g. noise reduction means

Abstract

A gas burner according to the invention comprises: a mixing chamber having a thin, vertical, lateral wall perforated by outlets for the combustion mixture, a deflector disposed inside the mixing chamber; said deflector having a slanting part which directs the flames upwards in a slanting manner, and a cover coated with a self-cleaning catalytic enamel. The cover may be made of metal or ceramic material. It may or may not constitute the deflector and it may or may not be detachable. The burner also comprises a crown for distributing the heat during cooking operations requiring low heat.

Description

O Muted States Patent 1 1 1 3,817,689

Ca June 18, 1974 GAS BURNER HAVING LATERAL 3,279,455 10/1966 Corey 431/347 GS AND A DEVICE O 3,580,733 5/1971 Ott 117/129 DEFLECTING THE FLAIWES UPWARDS 3,738,577 6/1973 Blanzy et a1. 239/553 [75] Inventor: Marcel Capy, Olivet, France FOREIGN PATENTS OR APPLICATIONS 1,394,223 2/1965 France 431/349 1 Asslgneer Compagme Europeenne Pour 739,391 10/1932 France 239/567 LEquipement Menager CEPEM, Paris, France Primary Examiner--Carro1l B. Dority, Jr. 22 Filed: No 15 1972 Attorney, Agent, or FirmSughrue, Rothwell, M1011,

Zinn and Macpeak [21] Appl. No.: 306,775

[57] ABSTRACT [30] Foreign Application Priority Data A gas burner according to the invention comprises: a Nov. 15, 1971 France 71.40801 mixing chamber having a thin, vertical, lateral Wall perforated by outlets for the combustion mixture, 21 [52 vs. C! 431/349, 239/553, 239/567, deflector disposed inside the mixing r; i

239/568 flector having a slanting part which directs the flames [51] Int. Cl. F2311 13/36 upwards in a slanting m and a cover coated t [58] Field of Search 431/349; 239/553, 559, a Self-Cleaning Catalytic enamel- The Cover y be 239/5 7 568 made of metal or ceramic material. It may or may not constitute the deflector and it may or may not be de- 5 References Cited tachable. The burner also comprises a crown for dis- UNITED STATES PATENTS tributing the heat during cooking operations requiring 1,156,845 10/1915 James 239/567 low heat 2,960,157 11/1960 Dolby 431/349 10 Claims, 8 Drawing Figures PATENflZBJun ream SHEET 10F 3 FIG/I PKTENIEBJIm-BBM 7 3.18171689 sum 20F s BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gas burner comprising a mixing chamber having a substantially cylindrical thin, lateral wall with vertical generatrices perforated by outlets for the combustion mixture. More particularly, it relates to circular burners for cooking stoves.

2. Prior Art Gas burners with a thick cast metal wall are already known, in which it is possible to direct the flame upwards in a slanting manner by directing the apertures in the cylindrical vertical wall. This insures better heat output and cleaner combustion by reducing the proportion of unburned and incompletely burned gas. Less expensive burners of a simpler design and made of thin sheet metal, are also known. Burners of this type have the particular disadvantage of becoming soiled when the liquid in a container placed on the burner, boils over. On the other hand, a certain amount of lining occurs, i.e. the enamel cracks during operation of the burner when the burner cover is made of ordinary enamelled metal, due to the disparities in temperature between the periphery and the centre.

SUMMARY OF THE INVENTION The object of the present invention is to provide a gas burner with a cover adapted to withstand without damage the thermal stresses produced by temperature disparities during the operation thereof.

Another object of the invention is to make it possible to dismantle the cover.

Yet another object of the invention is to eliminate the cleaning process as the cover is self-cleaning.

The gas burner according to the invention is characterized in that it comprises a cover which is resistant to thermal stresses, and a deflector which is disposed inside the mixing chamber and which comprises a slanting part for directing the flames upwards in a slanting manner.

Advantageously, the burner according to the invention also comprises at least one of the following features: the cover is coated with a catalytic enamel, thus rendering the burner self-cleaning; the cover is made of metal coated with a catalytic enamel; the burner cover is made of ceramic material; the ceramic cover comprises a lower wall having a slanting part forming a deflector which directs the flames upwards in a slanting manner; the ceramic cover is arranged with a deflector made of thin metal, at the upper part of the burner body; the ceramic cover is placed on the burner, the deflector comprising a solid base; the cover comprises a horizontal part covering the flames in the low intensity area.

Other features of the present invention will be made apparent from the following detailed description of the preferred embodiments thereof, provided by way of non-limitative examples, and from the accompanying drawings representing said embodiments.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows an axial sectional view of a gas burner according to the invention.

FIGS. 2-8 show variants of the burner according to the invention.

DESCRIPTION or THE PREFERRED EMBODIMENTS FIG. 1 shows an embodiment of a burner according to the invention. It comprises a venturi l, the collar 2 of which supports a lower circular pan 3, with the exception of 3 bosses such as 4, distributed at an angle of from each other and serving to calibrate the pilot opening 5. The pan 3 supports a circular mixing chamber, comprising a burner pan 6 having a cylindrical, vertical, lateral wall, provided with extended discharge apertures 7 for the main flames. Its base 8 is perforated by apertures 9 supplying the expansion chamber 10, defined by the pan 3. The circular mixing chamber also comprises a slightly convex cover 11 and a frustoconical deflector 12. The cover and the deflector are rendered integral with the wall of the mixing chamber by crimping the upper edge 14 of the wall over the edges of these parts. The deflector -12 deflects the flames upwards in a slanting manner. In the absence of this deflector they would be substantially horizontal. in this way, the flames reach the base of the container to be heated, which is placed above the burner, closer to its axis than in the absence of the deflector. The flames are also longer. The heat output is thus improved and the rate of complete combustion increased, thereby avoiding the discharge of unburned hydrocarbons or carbon monoxide.

Each of the parts constituting the burner can thus be made of inoxidable thin sheet metal adapted for regular service conditions or suitably protected. The cover 11 is coated with catalytic enamel prior to the crimping operation.

In the embodiment shown in FIG. 2, the burner comprises a venturi 1 having a peripheral collar 2 which supports a lower circular pan 3, with the exception of 3 bosses 4 distributed on the circumference and serving to calibrate a pilot opening 5. The pan 3 supports a circular mixing chamber 6, comprising a burner pan 8 having a cylindrical, vertical, lateral wall provided with extended discharge apertures 7 for the main flames. Its base 8 is perforated by apertures 9 supplying the pilot chamber 10. It also comprises a slightly convex cover 11 coated with a catalytic enamel and a deflector 12 having a frusto-conical lateral wall and an incurvated solid base 13. The cover 11 and the deflector 12 are rendered integral with the wall of the mixing chamber by crimping the upper edge 14 over the edges of these parts. The main flames are deflected upwards in a slanting manner by the deflector 12. This deflector 12 is solid and it defines the chamber 6 for mixing combustible gas and primary air. The volume of the mixing chamber may be varied by giving the base of the deflector a flat shape or a more or less incurvated shape according to the gas used, its pressure and the capacity of the burner.

In the embodiment represented in FIG. 3, the venturi and the pilot chamber are not shown. The burner comprises a circular mixing chamber 6. This comprises a pan 8 having a cylindrical lateral wall provided with extended apertures 7 for discharging the main flames. Its

base 8 is perforated by apertures 9 supplying the pilot chamber situated below the wall 8. The burner also comprises a slightly convex cover 1 1 and a deflector 12 having a frusto-conical lateral wall and a solid or hollow base. The cover 11 and the deflector 12 are rendered integral with the wall of the mixing chamber by crimping the upper edge 14 of this wall over the edges of these parts. The main flames are deflected upwards in a slanting manner by the deflector 12.

The cover 11 is made of ceramic material and it may also be coated with a catalytic enamel. The use of a catalytic enamel allows the burner to be kept permanently clean.

FIG. 4 shows a burner of the same type, comprising the same elements as that of FIG. 3 but in which the cover 11 and the deflector 12 are replaced by a single ceramic part 11 forming both a burner cover and a deflector redirecting the flames upwardly. For this reason, the lower part of the member 11 is the same shape as the deflector in FIG. 2, i.e., it comprises at leastone part shaped in the form of an inverted truncated cone directing the flames in a slanting manner upwards. The edge of the lateral wall 14 of the mixing chamber is crimped over the edge of the cover 11.

FIG. shows another variant of the burner in which the cover 11 consists of a ceramic tablet which is simply placed on the burner. In this case, the deflector 12 made of thin sheet metal, is solid and is mounted at 14 on the edge of the lateral wall of the burner body in such a manner as to close the mixing chamber. The edge of the tablet 11 comprises an inclined part 17 allowing the tablet to be applied to and centred on the deflector-burner body assembly.

FIGS. 6, 7 and 8 show embodiments of burners according to the invention, permitting a low intensity heating action to be obtained more easily in containers used for the cooking operation known as simmering and further permitting the heat to be distributed in a uniform manner under the base of the cooking utensils.

It is already known in the art to obtain this type of effect by interposing a concave metal screen between the burner head and the container. The metal screen thus acts as a diffuser.

When the metal screen is integral with a grill which supports the containers to be heated, this screen is soldered to the grill and the soldered joints are situated in the flame when the burner is on high. For this reason it is necessary to use soldering materials having a very high point of fusion. Furthermore, the incorporation of this type of metal screen considerably complicates the manufacture of the grill. It is possible to use a metal screen known as a diffuser, which is placed on the grill without a screen. A diffuser of this type, which generally has fairly large dimensions in order to support the cooking utensils, must be removed from the grill when the burner is fully turned on.

A gas burner according to the invention does not have the disadvantages of known burners when used for simmering. Neither does a metal screen have to be interposed between the burner and the container to be heated.

A gas burner adapted for low intensity cooking is produced by surrounding the lateral wall of the mixing chamber and the upper part of the same with a horizontal crown which is flat or slightly concave toward the base. The outer diameter of the crown is onethird to twice the inner diameter so as to cover the flames when the burner is operated at its minimum rate.

FIG. 6 shows a burner having an enamelled metal cover. As in FIG. 1, it consists of a venturi, the collar of which supports a lower circular pan 3, with the exception of 3 bosses such as 4. These bosses, which are used to calibrate the pilot opening, are distributed at an angle of from each other. The pan 3 supports a circular mixing chamber comprising a burner pan 6 having a cylindrical, vertical, lateral wall provided with extended outlets 7 for the main flames. The horizontal crown 20 forms an extension of the vertical wall. The base 8 of the burner pan is perforated by openings 9 supplying the expansion chamber limited by the pan 3.

The mixing chamber also comprises a deflector 12 having a frusto-conical lateral wall, a convex base and a slightly convex cover 11. The cover 11 and the deflector 12 are rendered integral with the pan 6 of the mixing chamber by crimping the upper edge 21 of the crown of the pan over the edges of these parts. The crown 20 may be flat or slightly convex. Its outer diameter is in the order of one-third to twice its inner diameter which is also that of the vertical wall of the pan 6 limiting the mixing chamber.

FIG. 7 shows a burner with a ceramic cover 11. The reference numerals used in FIG. 7 have the same meaning as those used in FIG. 1 but the venturi has not been represented. The ceramic cover also acts as a deflector, the lower part of the cover having the same shape as the deflector shown in FIG. 1. The cover also comprises a crown 22 which rests on the crown 20.

The cover 11 and the pan 6 of the mixing chamber are joined by crimping the upper edge 21 of this pan over the edge of the cover.

FIG. 8 shows a burner with a ceramic cover 11. The cover is detachable. The reference numerals used in FIG. 8 have the same meaning as those used in FIGS. 1, 6 and 7 but the venturi has not been represented. The ceramic cover 11 comprises a crown 22. It rests on the assembly formed by the metal deflector l2 and the pan 6 which are joined by crimping the upper edge 23 of this pan over the edge of the deflector.

Obviously, the sheet metal or ceramic cover may also be enamelled with a catalytic enamel.

The invention, which has been described, may obviously be modified in various ways without departing from the scope of the invention and certain elements may be replaced by others having the same technical function.

What is claimed is:

1. In a thin-walled gas burner comprising a mixing chamber defined by a substantially cylindrical, thin, lateral wall with vertical generatrices perforated by vertical slots for the combustion mixture, the improvement comprising cover means coated with a self-cleaning catalytic enamel and separate deflector means disposed inside the mixing chamber adjacent to said slots for the combustion mixture, said deflector means being attached to the upper edge of said lateral wall by a crimped portion and having a slanting part which directs the flames upwards in a slanting manner.

2. A burner according to claim 1, wherein the cover means is made of ceramic material.

3. A burner accordingg to claim I, wherein the cover means and the deflector means are secured by crimping the upper edge of the lateral wall thereto.

4. A burner according to claim 2, wherein the ceramic cover means is placed on the burner and the deflector has a solid base.

5. A gas burner according to claim 1 wherein the outer diameters of the cover means and deflector means are one third to twice the inner diameter of the vertical walls defining the mixing chamber.

6. A gas burner according to claim 5 wherein the ver tical wall defining the mixing chamber has a laterally extending upper portion and cover means and deflector means are attached to said laterally extending upper portion by crimping thereto.

7. A gas burner according to claim 1 wherein the devex.

Claims (10)

1. In a thin-walled gas burner comprising a mixing chamber defined by a substantially cylindrical, thin, lateral wall with vertical generatrices perforated by vertical slots for the combustion mixture, the improvement comprising cover means coated with a self-cleaning catalytic enamel and separate deflector means disposed inside the mixing chamber adjacent to said slots for the combustion mixture, said deflector means being attached to the upper edge of said lateral wall by a crimped portion and having a slanting part which directs the flames upwards in a slanting manner.
2. A burner according to claim 1, wherein the cover means is made of ceramic material.
3. A burner accordingg to claim 1, wherein the cover means and the deflector means are secured by crimping the upper edge of the lateral wall thereto.
4. A burner according to claim 2, wherein the ceramic cover means is placed on the burner and the deflector has a solid base.
5. A gas burner according to claim 1 wherein the outer diameters of the cover means and deflector means are one third to twice the inner diameter of the vertical walls defining the mixing chamber.
6. A gas burner according to claim 5 wherein the vertical wall defining the mixing chamber has a laterally extending upper portion and cover means and deflector means are attached to said laterally extending upper portion by crimping thereto.
7. A gas burner according to claim 1 wherein the deflector means is joined to the upper edge of the vertical walls defining the mixing chamber and the cover means has a portion which extends laterally beyond the outer diameters of the mixing chamber and the deflector means.
8. A gas burner according to claim 6, wherein the deflector means and cover means are made of metal.
9. A gas burner according to claim 7, wherein the laterally extending portion of the cover is flat.
10. A gas burner according to claim 7, wherein the laterally extending portion of the cover is slightly convex.
US30677572 1971-11-15 1972-11-15 Gas burner having lateral openings and a device for deflecting the flames upwards Expired - Lifetime US3817689A (en)

Priority Applications (1)

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FR7140801A FR2161142A6 (en) 1971-11-15 1971-11-15

Applications Claiming Priority (1)

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US45669974 US3921913A (en) 1971-11-15 1974-04-01 Gas burner having lateral openings and a device for deflecting the flames upwards

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CA (1) CA958976A (en)
DK (1) DK130489C (en)
ES (1) ES184649Y (en)
FR (1) FR2161142A6 (en)

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3877865A (en) * 1972-11-16 1975-04-15 Lincoln Brass Works Gas burner and aeration pan assembly
US3921913A (en) * 1971-11-15 1975-11-25 Europ Equip Menager Gas burner having lateral openings and a device for deflecting the flames upwards
US5025831A (en) * 1990-08-24 1991-06-25 Exxon Research & Engineering Company Compact radial flow distributor
US5139417A (en) * 1991-01-22 1992-08-18 General Electric Company Gas burner with improved primary port arrangement
US5490778A (en) * 1990-04-12 1996-02-13 Dru B.V. Burner
US5649822A (en) * 1992-02-08 1997-07-22 Elektro-Und Gas-Armaturen-Fabrik Gmbh Gas burner
US6056542A (en) * 1998-02-20 2000-05-02 Bradford White Corporation Burner for reducing nitrogen oxides and carbon monoxide
US6135764A (en) * 1998-04-09 2000-10-24 Kwiatek; David J. Ribbon port burner for gas range
US6227696B1 (en) * 1999-03-31 2001-05-08 J.H. Horne & Sons Company Radial diffuser
US6322354B1 (en) 2000-07-17 2001-11-27 Wolf Appliance Company, Llc Stacked dual gas burner
US20080268394A1 (en) * 2007-04-27 2008-10-30 Paloma Industries, Limited Burner
US20080268393A1 (en) * 2007-04-27 2008-10-30 Paloma Industries, Limited Burner
US20100000515A1 (en) * 2006-09-06 2010-01-07 Electroulux Home Products Corporation N.V. Gas burner for cooking appliances
US20100009307A1 (en) * 2008-07-14 2010-01-14 Boo-Sung Hwang Combustion burner of a mixture of hydrogen and oxygen
US20130137008A1 (en) * 2011-11-24 2013-05-30 Sang-Jun Kong Distributor and fuel cell module having the same
JP2015040684A (en) * 2013-08-23 2015-03-02 株式会社ハーマン Gas burner
GB2544069A (en) * 2015-11-04 2017-05-10 Aga Rangemaster Ltd Cooking hob gas burner

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1156845A (en) * 1913-02-24 1915-10-12 Richard R James Burner.
FR739391A (en) * 1932-07-02 1933-01-11 Fr De Chaleur Et Lumiere Soc gas burner
US2960157A (en) * 1955-11-29 1960-11-15 Configured Tube Products Co Gas burner
FR1394223A (en) * 1964-02-12 1965-04-02 Applic Gaz Sa Improvements to gas burners, including stoves and similar
US3279455A (en) * 1964-11-16 1966-10-18 Ronald D Corey Gas fired radiant heater
US3580733A (en) * 1969-04-17 1971-05-25 Scm Corp Food cooking apparatus having continuous cleaning properties and process for producing same
US3738577A (en) * 1971-07-19 1973-06-12 Lincoln Brass Works Burner structure

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1156845A (en) * 1913-02-24 1915-10-12 Richard R James Burner.
FR739391A (en) * 1932-07-02 1933-01-11 Fr De Chaleur Et Lumiere Soc gas burner
US2960157A (en) * 1955-11-29 1960-11-15 Configured Tube Products Co Gas burner
FR1394223A (en) * 1964-02-12 1965-04-02 Applic Gaz Sa Improvements to gas burners, including stoves and similar
US3279455A (en) * 1964-11-16 1966-10-18 Ronald D Corey Gas fired radiant heater
US3580733A (en) * 1969-04-17 1971-05-25 Scm Corp Food cooking apparatus having continuous cleaning properties and process for producing same
US3738577A (en) * 1971-07-19 1973-06-12 Lincoln Brass Works Burner structure

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3921913A (en) * 1971-11-15 1975-11-25 Europ Equip Menager Gas burner having lateral openings and a device for deflecting the flames upwards
US3877865A (en) * 1972-11-16 1975-04-15 Lincoln Brass Works Gas burner and aeration pan assembly
US5490778A (en) * 1990-04-12 1996-02-13 Dru B.V. Burner
US5025831A (en) * 1990-08-24 1991-06-25 Exxon Research & Engineering Company Compact radial flow distributor
US5139417A (en) * 1991-01-22 1992-08-18 General Electric Company Gas burner with improved primary port arrangement
US5649822A (en) * 1992-02-08 1997-07-22 Elektro-Und Gas-Armaturen-Fabrik Gmbh Gas burner
US6056542A (en) * 1998-02-20 2000-05-02 Bradford White Corporation Burner for reducing nitrogen oxides and carbon monoxide
US6135764A (en) * 1998-04-09 2000-10-24 Kwiatek; David J. Ribbon port burner for gas range
US6227696B1 (en) * 1999-03-31 2001-05-08 J.H. Horne & Sons Company Radial diffuser
US6322354B1 (en) 2000-07-17 2001-11-27 Wolf Appliance Company, Llc Stacked dual gas burner
US20100000515A1 (en) * 2006-09-06 2010-01-07 Electroulux Home Products Corporation N.V. Gas burner for cooking appliances
US9835327B2 (en) * 2006-09-06 2017-12-05 Electrolux Home Products Corporation N.V. Gas burner for cooking appliances
US20080268393A1 (en) * 2007-04-27 2008-10-30 Paloma Industries, Limited Burner
US8282391B2 (en) * 2007-04-27 2012-10-09 Paloma Industries, Limited Burner
US20080268394A1 (en) * 2007-04-27 2008-10-30 Paloma Industries, Limited Burner
US20100009307A1 (en) * 2008-07-14 2010-01-14 Boo-Sung Hwang Combustion burner of a mixture of hydrogen and oxygen
US20130137008A1 (en) * 2011-11-24 2013-05-30 Sang-Jun Kong Distributor and fuel cell module having the same
US9166245B2 (en) * 2011-11-24 2015-10-20 Samsung Sdi Co., Ltd. Distributor and fuel cell module having the same
JP2015040684A (en) * 2013-08-23 2015-03-02 株式会社ハーマン Gas burner
GB2544069A (en) * 2015-11-04 2017-05-10 Aga Rangemaster Ltd Cooking hob gas burner
GB2545323A (en) * 2015-11-04 2017-06-14 Aga Rangemaster Group Plc Cooking hob gas burner

Also Published As

Publication number Publication date
FR2161142A6 (en) 1973-07-06
CA958976A1 (en)
ES184649U (en) 1973-09-16
DK130489C (en) 1975-07-21
ES184649Y (en) 1974-06-01
CA958976A (en) 1974-12-10
DK130489B (en) 1975-02-24

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