US20040234915A1 - Gas burner with covered simmer flame - Google Patents

Gas burner with covered simmer flame Download PDF

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Publication number
US20040234915A1
US20040234915A1 US10/816,463 US81646304A US2004234915A1 US 20040234915 A1 US20040234915 A1 US 20040234915A1 US 81646304 A US81646304 A US 81646304A US 2004234915 A1 US2004234915 A1 US 2004234915A1
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US
United States
Prior art keywords
ring
burner
axis
plate
burner assembly
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.)
Abandoned
Application number
US10/816,463
Inventor
Jurgen Koch
Robert Zink
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.)
Isphording Germany GmbH
Original Assignee
Isphording Germany GmbH
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
Priority to DE2003115343 priority Critical patent/DE10315343A1/en
Priority to DE10315343.8 priority
Application filed by Isphording Germany GmbH filed Critical Isphording Germany GmbH
Assigned to ISPHORDING GERMANY GMBH reassignment ISPHORDING GERMANY GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: KOCH, JURGEN, ZINK, ROBERT
Publication of US20040234915A1 publication Critical patent/US20040234915A1/en
Abandoned legal-status Critical Current

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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
    • F23D14/065Premix 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 with injector axis inclined to the burner head axis
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24CDOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C3/00Stoves or ranges for gaseous fuels
    • F24C3/08Arrangement or mounting of burners
    • F24C3/085Arrangement or mounting of burners on ranges
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23DBURNERS
    • F23D2900/00Special features of, or arrangements for burners using fluid fuels or solid fuels suspended in a carrier gas
    • F23D2900/14Special features of gas burners
    • F23D2900/14062Special features of gas burners for cooking ranges having multiple flame rings

Abstract

A burner assembly has a ring generally centered on an axis and defining an array of outwardly open holes and a compartment at the axis. A gas/air mixture is fed to the ring to project jets of the mixture from the holes so that, when ignited, the jets form a main annular flame centered on the axis. A relatively small burner in the compartment is generally centered on the axis, and a horizontal plate on the ring overlies and covers the compartment and the burner. A gas/air mixture is supplied to the burner to the burner to form in the chamber underneath the plate a small flame centered on the axis. The cover plate is a generally circular disk having an outer diameter greater than an outer diameter of the small burner. The disk outer diameter is greater than an inner diameter of the ring.

Description

    FIELD OF THE INVENTION
  • The present invention relates to a gas burner. More particularly this invention concerns a gas burner having an outer main flame and a smaller central simmer flame. [0001]
  • BACKGROUND OF THE INVENTION
  • U.S. Pat. No. 5,277,576 describes a gas burner comprising a small inner burner centered on a vertical axis and formed with a periphery having a first plurality of outlet ports and an outer burner ring coaxial with and spaced radially outwardly from the inner burner and having a periphery that forms with the periphery of the inner burner an inner annular compartment. The outer ring is provided with a second plurality of outlet ports. An annular element coaxial with the burners and below the outer ring defines an axially extending space communicating with the annular compartment. An air supply in the axially extending space feeds air to the inner burner and includes a plurality of openings formed in the annular element and communicating with the axially extending space and with the inner burner through the compartment. An ignitor plug generates a flame in the burner assembly, and a thermal element in the compartment controls the flame. A subsidiary gas supply feeds gas to the inner burner, and a main gas supply separate from the subsidiary gas supply feeds gas to the second periphery of outlet ports of the outer ring of the outer burner. [0002]
  • Such a burner can therefore employ the outer ring, whose heating capacity is seven or eight times that of the inner burner, for serious heating of a cooking vessel above the burners. Alternately the small inner burner can be used all alone when it is only necessary to maintain the vessel at a low temperature, for holding its contents warm. It is even possible to use both burners together to apply a great deal of heat to the vessel. [0003]
  • The problem with this system is that the inner burner forms a central hot spot on the cooking vessel. Thus its contents can be overheated and even burned at this hot spot, even when the burner is turned all the way down to the warm setting. [0004]
  • OBJECTS OF THE INVENTION
  • It is therefore an object of the present invention to provide an improved burner for a gas stove. [0005]
  • Another object is the provision of such an improved burner for a gas stove which overcomes the above-given disadvantages, that is which allows a cooking vessel to be kept hot without overheating the vessel locally. [0006]
  • A further object is to provide and improved method of using a burner. [0007]
  • SUMMARY OF THE INVENTION
  • A burner assembly has according to the invention a ring generally centered on an axis and defining an array of outwardly open holes and a compartment at the axis. A gas/air mixture is fed to the ring to project jets of the mixture from the holes so that, when ignited, the jets form a main annular flame centered on the axis. A relatively small burner in the compartment is generally centered on the axis, and a horizontal plate on the ring overlies and covers the compartment and the burner. A gas/air mixture is supplied to the burner to the burner to form in the chamber underneath the plate a small flame centered on the axis. [0008]
  • Thus with this system the flame of the small inner burner is not applied directly to the cooking vessel or pot above it. Instead according to the method of this invention the pot is shielded by this normally metallic plate from the flame, so heat is transmitted to it less directly and over the entire surface of the shield plate. [0009]
  • The cover plate according to the invention is a. generally circular disk having an outer diameter greater than an outer diameter of the small burner. Furthermore, the disk outer diameter is greater than an inner diameter of the ring. [0010]
  • The plate or shield disk in accordance with the invention is spaced above the ring. It has at least three downwardly projecting and angularly spaced feet by which it stands on the ring. Moreover, the ring has a generally frustoconical upper surface centered on the axis and sloping downward toward the axis and the feet have lower surfaces of complementary shape that sit flatly on the surface. Thus the feet naturally center the disk in the ring without restricting it to any one angular position. The feet form slots or ports through which hot gases, spread over a circle of roughly the same diameter as the outer burner ring, exit then rise around the pot or cooking vessel on the burner according to the invention. Thus the heat from the small inner burner is distributed over a very large surface area. [0011]
  • The shield disk can also, in fact, be unitarily formed with the ring, or at least an upper part of the burner ring. In this case slots for escape of hot gases must be provided in the unitary structure between the ring and the disk. [0012]
  • The disk or plate has an upper surface that slopes downward away from the axis and that has an outer edge. Furthermore, the ring has a generally frustoconical upper surface that slopes downward outward away from the axis and having inner and outer peripheries. The outer edge of the plate upper surface is radially outward of the ring upper-surface inner periphery so that drips from the plate run to the edge, fall therefrom onto the ring upper surface, and run radially outward thereon. [0013]
  • According to the invention a support holds a cooking vessel spaced axially slightly above the plate. This support can be of glass and even transparent so the user can confirm that the burner is lit. Furthermore it can be formed with vertically throughgoing holes. Alternately, the plate has a generally planar upper surface designed to directly contact and support a cooking vessel in this case the upper surface can be perfectly planar and even ribbed.[0014]
  • BRIEF DESCRIPTION OF THE DRAWING
  • The above and other objects, features, and advantages will become more readily apparent from the following description, reference being made to the accompanying drawing whose sole FIGURE is a side sectional view of the burner according to the invention.[0015]
  • SPECIFIC DESCRIPTION
  • As seen in the drawing a burner [0016] 1 according to the invention has a stationary body 2 centered on an upright axis M and provided with a main gas/air inlet fitting or pipe 3 and a secondary gas/air inlet fitting or pipe 4. The pipe 3 opens into an annular and upwardly open compartment 3 a centered on the axis M. Sitting atop the compartment 3 a of the body 2 is a lower metallic ring 5 a and, atop it, an upper metallic ring 5 b forming an upper downwardly open annular compartment 3 b centered on the axis M above and communicating with the compartment 3 a. The upper ring 6 is formed with an array of radially throughgoing and outwardly open holes 6 also opening radially inward into the upper compartment 3 b. Thus a gas/air mixture supplied to the compartments 3 a and 3 b from the fitting 3 will exit from the holes 5 and form, when ignited, a large annular flame centered on the axis M and below a lower surface of a pot held, for example, on a support 22 above the ring 5 b. This support 22 can be a transparent glass sheet and/or can be formed with throughgoing holes 24.
  • A small circular burner [0017] 9 is centered in a compartment 8 defined within the rings 5 a and 5 b and is spaced well inward of their inner peripheries. It is connected to the secondary gas/air supply fitting 4 and is formed with an array of radially outwardly open holes 11 that are directed horizontally in a plane perpendicular to the axis M at a level below the uppermost portion of the upper ring 5 b, that is within the compartment 8. Thus a gas-air mixture supplied to the burner 9 from the fitting 4 will exit from the holes 11 and form, when ignited, a small annular flame centered on the axis M in the compartment 8. The body 2 below the burner is formed with at least one throughgoing hole 10 for makeup air. In addition there is a radially throughgoing hole or port 19 in the upper ring 5 b so that the inner flame from the holes 11 and the outer flame from the holes 6 can ignite each other.
  • According to the invention the upper ring [0018] 5 b has a frustoconical surface 15 that is directed axially outward and centered on the axis M and that engages complementary lower end surfaces of feet 14 of a circular metallic plate or disk 12 of a diameter slightly less than the outside diameter of the upper ring 5 b. The feet 14 are angularly equispaced and hold this disk 12 up so as to form three vent slots 13 opening in a plane just above the upper edge of the upper disk 5 b and angularly equispaced about the axis M. The small flame of the inner burner 9 does not project through these vent slots 13 but, instead, merely heats the lower surface of the disk 12 where it is exposed in the compartment 8, transferring heat to a pot sitting on the disk 12 or above it on the support 22 over a relatively large surface. This allows a relatively large pot, for example, to be kept warm without overheating it locally. In fact the inner burner 9 can operate at about 2.5% of the nominal capacity of the outer burner rings 5 a and 5 b. The disk 12 can, if necessary, be formed with an array of axially throughgoing holes to increase heat transfer from the burner 9.
  • In order to prevent spills from getting into the compartment [0019] 8, the disk 12 has an upper surface 20 that is frustoconical at an angle of slightly less than 180° and that slopes downward and outward from the axis M, over a rounded upper and outer corner 16 to terminate at a sharp and downwardly projecting lower outer edge 17. In its turn, the upper ring has a frustoconical upper surface similarly slopes downward and outward from the axis M and that has an inner periphery lying radially inward of the edge 17 and an outer periphery that overhangs the rest of the upper ring 5 b and that is vertically aligned with a downwardly curved outer surface 21 of the lower ring 5 a. Thus a drip hitting the upper surface 20 will roll radially outward to drop from the edge 17 onto the surface 18 and thence move to the surface 21 and off the burner altogether into a catch pan 23.
  • The disk [0020] 12 can be simply lifted off the upper ring 5 b which can similarly be lifted off the lower ring 5 a, which can in turn be lifted off the body 2, exposing the burner 9 and allowing these parts 5 a, 5 b, and 12 to be scrubbed or serviced. The feet 14 center the disk 12 on the ring 5 b which in turn fits with its lower edge into a seat on the lower ring 5 a that similarly fits in a seat on the body 2, so that the burner can easily be disassembled and reassembled without the use of tools. The three parts 5 a, 5 b, and 12 are durable metal castings that can be counted on to have a very long service life.

Claims (12)

We claim:
1. A burner assembly comprising:
a ring generally centered on an axis and defining an array of outwardly open holes compartment;
means for supplying a gas/air mixture to the ring to project jets of the mixture from the holes, whereby, when ignited, the jets form a main annular flame centered on the axis;
a relatively small burner in the compartment generally centered on the axis;
a horizontal plate on the ring overlying and covering the compartment and the burner; and
means for supplying a gas/air mixture to the burner to form in the chamber underneath the plate a small flame centered on the axis.
2. The burner assembly defined in claim 1 wherein the cover plate is a generally circular disk having an outer diameter greater than an outer diameter of the small burner.
3. The burner assembly defined in claim 2 wherein the disk outer diameter is greater than an inner diameter of the ring.
4. The burner assembly defined in claim 1 wherein the plate is spaced above the ring.
5. The burner assembly defined in claim 4 wherein the plate has at least three downwardly projecting and angularly spaced feet by which it stands on the ring.
6. The burner assembly defined in claim 5 wherein the ring has a generally frustoconical upper surface centered on the axis and sloping downward toward the axis and the feet have lower surfaces of complementary shape that sit flatly on the surface.
7. The burner assembly defined in claim 1 wherein the plate has an upper surface that slopes downward away from the axis and that has an outer edge.
8. The burner assembly defined in claim 7 wherein the ring has a generally frustoconical upper surface that slopes downward outward away from the axis and having inner and outer peripheries, the outer edge of the plate upper surface being radially outward of the ring upper-surface inner periphery, whereby drips from the plate run to the edge, fall therefrom onto the ring upper surface, and run radially outward thereon.
9. The burner assembly defined in claim 1, further comprising
a support for holding a cooking vessel spaced axially slightly above the plate.
10. The burner assembly defined in claim 9 wherein the support is glass.
11. The burner assembly defined in claim 9 wherein the support is formed with vertically throughgoing holes.
12. The burner assembly defined in claim 1 wherein the plate has a generally planar upper surface designed to directly contact and support a cooking vessel.
US10/816,463 2003-04-03 2004-04-01 Gas burner with covered simmer flame Abandoned US20040234915A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE2003115343 DE10315343A1 (en) 2003-04-03 2003-04-03 Gas burner used for cooking, includes burner main body arranged in interior chamber formed by cover and burner ring such that outer diameter of cover is larger than inner diameter of burner ring
DE10315343.8 2003-04-03

Publications (1)

Publication Number Publication Date
US20040234915A1 true US20040234915A1 (en) 2004-11-25

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DE (1) DE10315343A1 (en)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060063119A1 (en) * 2004-09-17 2006-03-23 Jean-Claude Molla Gas burner with only an internal flame
US20080206697A1 (en) * 2005-07-29 2008-08-28 Christophe Trochou Gas Burner With Multiple Concetric Flame Rings
US20080210216A1 (en) * 2004-10-28 2008-09-04 Aktiebolaget Electrolux Cooking Gas Burner
US20090047611A1 (en) * 2005-04-29 2009-02-19 Piero Armanni High-power double burner for gas cookers, with multiple concentric flame crowns
US20110011389A1 (en) * 2007-12-14 2011-01-20 Lg Electronics Inc. Top-burner and cooker comprising the same
WO2011066528A1 (en) * 2009-11-30 2011-06-03 Electrolux Home Products, Inc. Simmer plate attached to burner
US20110151385A1 (en) * 2009-12-18 2011-06-23 Jose Arturo Lona Santoyo Triple Flame Section Burner
CN103162316A (en) * 2011-12-16 2013-06-19 林内株式会社 Gas stove
US20130269676A1 (en) * 2011-04-19 2013-10-17 Somipress - Societa' Metalli Iniettati S.P.A. Gas burner with inward-facing flame
US8757137B2 (en) * 2012-03-05 2014-06-24 General Electric Company Multi-ringed burner with spill containment
US20140209088A1 (en) * 2010-12-22 2014-07-31 Sabaf S.P.A. Gas burner
CN105423303A (en) * 2015-12-09 2016-03-23 蒋华钧 Multi-surface heating type burner
CN105987383A (en) * 2015-02-04 2016-10-05 浙江布鲁尼电器科技有限公司 Combustor structure for gas stove
CN106500098A (en) * 2016-10-13 2017-03-15 广西大学 A kind of oxygen-enriched atmospheric burner of the preheating based on thermal transpiration effect
US10816215B2 (en) * 2009-11-23 2020-10-27 Whirlpool Corporation Diffusion cap burner for gas cooking appliance

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITTO20050685A1 (en) 2005-09-30 2007-04-01 Indesit Co Spa Gas burner hob comprising a semi-permeable element
DE102006053424A1 (en) * 2006-11-13 2008-05-15 BSH Bosch und Siemens Hausgeräte GmbH Nozzle-injector holder
ITTO20070133A1 (en) 2007-02-26 2008-08-27 Indesit Co Spa Gas burner system for cooking appliances for food
ITRN20070012A1 (en) 2007-02-27 2008-08-28 Indesit Company Spa Hob
ITRN20070013A1 (en) 2007-02-27 2008-08-28 Indesit Company Spa Hob.

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2619164A (en) * 1945-09-28 1952-11-25 Philip S Harper Gas fueled simmer burner with flame retaining ports
US3773027A (en) * 1971-03-15 1973-11-20 Owens Illinois Inc Countertop heating apparatus
US4968246A (en) * 1987-06-18 1990-11-06 Matsushita Electric Industrial Co., Ltd. Heating apparatus
US5277576A (en) * 1991-07-31 1994-01-11 Paul Isphording Metallwerke Gmbh & Co. Kg Gas burner
US5401164A (en) * 1993-08-06 1995-03-28 Tri Square Industrial Co., Ltd. Gas burner
US5549098A (en) * 1994-02-16 1996-08-27 Maytag Corporation Glass range top-seal system
US5639232A (en) * 1995-06-26 1997-06-17 Middleby Marshall Inc. Gas burner
US6132205A (en) * 2000-01-06 2000-10-17 Harneit; Uwe Multi-ring sealed gas burner
US6244263B1 (en) * 1997-08-07 2001-06-12 Horst Uwe Harneit Gas cooking burner
US6325619B2 (en) * 2000-01-28 2001-12-04 Sourdillon Gas burner with multiple gas rings

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DE4033503C2 (en) * 1990-10-20 1993-07-29 Ruhrgas Ag, 4300 Essen, De
NZ502170A (en) * 2000-01-06 2002-10-25 Fisher & Paykel Appliances Ltd Gas burner with transparent ceramic glass cap or top

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2619164A (en) * 1945-09-28 1952-11-25 Philip S Harper Gas fueled simmer burner with flame retaining ports
US3773027A (en) * 1971-03-15 1973-11-20 Owens Illinois Inc Countertop heating apparatus
US4968246A (en) * 1987-06-18 1990-11-06 Matsushita Electric Industrial Co., Ltd. Heating apparatus
US5277576A (en) * 1991-07-31 1994-01-11 Paul Isphording Metallwerke Gmbh & Co. Kg Gas burner
US5401164A (en) * 1993-08-06 1995-03-28 Tri Square Industrial Co., Ltd. Gas burner
US5549098A (en) * 1994-02-16 1996-08-27 Maytag Corporation Glass range top-seal system
US5639232A (en) * 1995-06-26 1997-06-17 Middleby Marshall Inc. Gas burner
US6244263B1 (en) * 1997-08-07 2001-06-12 Horst Uwe Harneit Gas cooking burner
US6132205A (en) * 2000-01-06 2000-10-17 Harneit; Uwe Multi-ring sealed gas burner
US6325619B2 (en) * 2000-01-28 2001-12-04 Sourdillon Gas burner with multiple gas rings

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060063119A1 (en) * 2004-09-17 2006-03-23 Jean-Claude Molla Gas burner with only an internal flame
US7819657B2 (en) * 2004-09-17 2010-10-26 Gdf Suez Gas burner with only an internal flame
US20080210216A1 (en) * 2004-10-28 2008-09-04 Aktiebolaget Electrolux Cooking Gas Burner
US8887710B2 (en) * 2004-10-28 2014-11-18 Aktiebolaget Electrolux Cooking gas burner
US20090047611A1 (en) * 2005-04-29 2009-02-19 Piero Armanni High-power double burner for gas cookers, with multiple concentric flame crowns
US20080206697A1 (en) * 2005-07-29 2008-08-28 Christophe Trochou Gas Burner With Multiple Concetric Flame Rings
US7901205B2 (en) * 2005-07-29 2011-03-08 Burner Systems International (Bsi) Gas burner with multiple concentric flame rings
US20110011389A1 (en) * 2007-12-14 2011-01-20 Lg Electronics Inc. Top-burner and cooker comprising the same
US8932049B2 (en) * 2007-12-14 2015-01-13 Lg Electronics Inc. Top-burner and cooker comprising the same
US10816215B2 (en) * 2009-11-23 2020-10-27 Whirlpool Corporation Diffusion cap burner for gas cooking appliance
AU2010324618B2 (en) * 2009-11-30 2014-11-13 Electrolux Home Products, Inc. Simmer plate attached to burner
WO2011066528A1 (en) * 2009-11-30 2011-06-03 Electrolux Home Products, Inc. Simmer plate attached to burner
CN102762922A (en) * 2009-11-30 2012-10-31 伊莱克斯家用产品公司 Simmer plate attached to burner
US20110290231A1 (en) * 2009-11-30 2011-12-01 Electrolux Home Products, Inc. Simmer plate attached to burner
US8689782B2 (en) * 2009-11-30 2014-04-08 Electrolux Home Products, Inc. Simmer plate attached to burner
US8747108B2 (en) * 2009-12-18 2014-06-10 Mabe, S.A. De C.V. Triple flame section burner
US20110151385A1 (en) * 2009-12-18 2011-06-23 Jose Arturo Lona Santoyo Triple Flame Section Burner
US20140209088A1 (en) * 2010-12-22 2014-07-31 Sabaf S.P.A. Gas burner
US10247410B2 (en) * 2010-12-22 2019-04-02 Sabaf S.P.A. Gas burner
US9151494B2 (en) * 2011-04-19 2015-10-06 Somipress Societa Metalli Iniettati S.P.A. Gas burner with inward-facing flame
US20130269676A1 (en) * 2011-04-19 2013-10-17 Somipress - Societa' Metalli Iniettati S.P.A. Gas burner with inward-facing flame
CN103162316A (en) * 2011-12-16 2013-06-19 林内株式会社 Gas stove
US8757137B2 (en) * 2012-03-05 2014-06-24 General Electric Company Multi-ringed burner with spill containment
CN105987383A (en) * 2015-02-04 2016-10-05 浙江布鲁尼电器科技有限公司 Combustor structure for gas stove
CN105423303A (en) * 2015-12-09 2016-03-23 蒋华钧 Multi-surface heating type burner
CN106500098A (en) * 2016-10-13 2017-03-15 广西大学 A kind of oxygen-enriched atmospheric burner of the preheating based on thermal transpiration effect

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Owner name: ISPHORDING GERMANY GMBH, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:KOCH, JURGEN;ZINK, ROBERT;REEL/FRAME:015565/0797

Effective date: 20040701

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION