EP1485651A1 - Cooking hob from tempered glass or other thermodegradable materials - Google Patents

Cooking hob from tempered glass or other thermodegradable materials

Info

Publication number
EP1485651A1
EP1485651A1 EP03739599A EP03739599A EP1485651A1 EP 1485651 A1 EP1485651 A1 EP 1485651A1 EP 03739599 A EP03739599 A EP 03739599A EP 03739599 A EP03739599 A EP 03739599A EP 1485651 A1 EP1485651 A1 EP 1485651A1
Authority
EP
European Patent Office
Prior art keywords
burner
supporting surface
circumferential ring
cooking hob
gas 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.)
Granted
Application number
EP03739599A
Other languages
German (de)
French (fr)
Other versions
EP1485651B1 (en
Inventor
Angelo Bettinzoli
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.)
Sabaf SpA
Original Assignee
Sabaf SpA
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 Sabaf SpA filed Critical Sabaf SpA
Priority to SI200330733T priority Critical patent/SI1485651T1/en
Publication of EP1485651A1 publication Critical patent/EP1485651A1/en
Application granted granted Critical
Publication of EP1485651B1 publication Critical patent/EP1485651B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C3/00—Stoves or ranges for gaseous fuels
    • F24C3/08—Arrangement or mounting of burners
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C3/00—Stoves or ranges for gaseous fuels
    • F24C3/08—Arrangement or mounting of burners
    • F24C3/085—Arrangement or mounting of burners on ranges
    • 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
    • F23D14/02—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone
    • F23D14/04—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner
    • F23D14/06—Premix 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
    • 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
    • F23D2900/14062—Special features of gas burners for cooking ranges having multiple flame rings

Definitions

  • the present invention relates to the use of a domestic gas burner, of the type comprising a burner base and a burner head provided with at least one flame crown, in a cooking hob having a supporting surface made of a material that is physically and/or only structurally degradable in the presence of heat sources, such as, for example, tempered glass.
  • a domestic gas burner of the type comprising a burner base and a burner head provided with at least one flame crown
  • a cooking hob having a supporting surface made of a material that is physically and/or only structurally degradable in the presence of heat sources, such as, for example, tempered glass.
  • cooking hob is meant, in what follows, any installation for the cooking of foodstuff provided with a support for housing at least one burner designed for supplying heat to the foodstuff itself, comprising in this term installations such as, for example, surfaces equipped for cooking or cooking ranges.
  • tempered glass a material which, in its most typical compositions, poorly withstands temperatures higher than 280°C, is in any case more desirable in so far as tempered glass is able, from the aesthetic standpoint as well as the maintenance standpoint, to replace pyroceram, the use of which in cooking hobs entails extremely high costs.
  • cooking hobs having a supporting surface made of pyroceram is, in fact, particularly widespread on account of its aesthetic qualities and the simple cleaning operations that such cooking hobs require.
  • the cooking hobs made of said material do not present any structural or mechanical degradation to thermal stresses coming from the burners, even though they prove particularly expensive and difficult to model.
  • such metal plates may be shaped like concave containers or trays, at the centre of which is housed the burner.
  • the gas burners used with said protective plates are generally of the type in which the intake of primary air takes place underneath the cooking hob, given the overall dimensions of the protective plate itself and the laborious problems involved in making air-inflow inlets set above said plate.
  • cooking hobs with a supporting surface made of stainless steel or other materials that are structurally resistant to heat but aesthetically degradable, such as enamelled steel, said cooking hobs tend, in the proximity of the burners, to undergo deformation and to change colour permanently, thus rendering the cooking hob itself somewhat unpleasant from the aesthetic point of view. Also for the above materials, there is felt the need to find solutions that will enable their use in cooking hobs provided with atmospheric gas burners, without there occurring any degradation in the appearance of the said cooking hob.
  • a purpose of the present invention is to provide a cooking hob having a supporting surface for housing the burners which is made of a material that is degradable in the presence of thermal emissions, which does not present the drawbacks referred to above, and at the same time is of pleasant appearance and simple to produce and maintain.
  • Another purpose of the present invention is to provide a cooking hob having a support made of a material that is degradable in the presence of thermal emissions and is provided with at least one gas burner, in which the latter is of the type that envisages the inflow of primary air from above the support that houses the burner itself.
  • the solution to the drawbacks referred to above can be achieved by using, in a way that is unknown to the prior art and is in itself surprising, a gas bumer of an atmospheric type provided with a burner base, a burner head having at least one flame crown, and a circumferential ring, the gas burner being set in a hole made in the supporting surface of a cooking hob which is made of a material, the physical characteristics or the structure of which are degradable in the proximity of heat sources.
  • the circumferential ring is set between the flame crown and the supporting surface.
  • the action of the circumferential ring is that of shielding the latter from the irradiation coming from the burner and from the heated recipient, in order to prevent, in the proximity of the said burner, there being formed temperature gradients such as might cause fracturing of the said supporting surface.
  • the circumferential ring also has the function of dissipating the heat transmitted by irradiation and by conduction along the burner.
  • the circumferential ring is separate from the support of the cooking hob in such a way that the space existing between the support and the circumferential ring will enable passage of the primary air directed to the burner, this implying the use of a burner of the type in which the primary air is taken in above the cooking hob.
  • the primary air inflow which is drawn, for example, by a horizontal Venturi tube (also known as radial Venturi), with which the burner can be equipped, contributes to cooling down both the circumferential ring and the supporting surface in the proximity of the burner.
  • the circumferential ring has a plan diameter greater than or equal to the diameter of the hole within which the burner is housed and preferably greater than or equal to the diameter of the flame crown.
  • the bumer is of the type comprising two or more flame crowns, and the supporting surface is made of tempered glass.
  • the present invention also intends to protect a cooking hob which has a support made of a material, the physical characteristics of which or the structure of which are degradable in the proximity of heat sources, and provided with at least one hole, within which is housed, at least partially, a gas burner of the type comprising a burner base and a burner head with at least one flame crown.
  • a gas burner of the type comprising a burner base and a burner head with at least one flame crown.
  • Said burner is provided with a circumferential ring set between the flame crown and the supporting surface.
  • the circumferential ring is set at a distance from the supporting surface, and the primary air is taken in above the supporting surface and underneath said circumferential ring.
  • FIG. 1 is a perspective view from above of a cooking hob made of thermally degradable material, comprising a plurality of atmospheric gas burners, according to a particular feature of the present invention
  • - Figure 2 is a profile view, partially in cross section, of a gas bumer provided with three flame crowns used on a cooking hob made of thermally degradable material, according to another feature of the present invention
  • - Figure 3 is a view in lateral cross section of the burner of Figure
  • FIG. 4 is a partially cut-away perspective view, of a burner provided with a single flame crown, according to a further feature of the present invention.
  • the present invention relates, with reference to Figure 1 , to the use of at least one gas burner 2, 3a, 3b or 3c with one or more flame crowns in a cooking hob, for example, a domestic cooking hob, provided with a supporting surface 1 made of a material the physical characteristics of which or the structure of which are degradable in the presence of hedt sources, such as, for example, tempered glass, stainless steel, or enamelled steel.
  • the present invention likewise relates to a cooking hob having a supporting surface made of a degradable material.
  • FIG 1 illustrates, then, purely by way of non-limiting example, a cooking hob provided with a supporting surface 1 , for example, made of tempered glass, on which are arranged, in purposely provided seats, a burner 2 with three flame crowns and three burners 3a, 3b, 3c having just one flame crown.
  • the burner 2 comprises, according to the present invention, a burner base 4 and a burner head 5 bearing the above-mentioned three flame crowns, as well as a circumferential ring 9 set between the flame crowns and the supporting surface 1.
  • the outermost flame crown, defined in the burner head 5 by peripheral holes 26, can be seen in Figure 2.
  • the base 4 of the burner 2 is housed in a circular hole made in the said supporting surface 1 (and set in a position corresponding to the portion designated by 22 in Figure 2), supported by a plurality of fiat springs 8 set opposite to a circular flange 7, between which is set the portion of the supporting surface 1 adjacent to the housing hole.
  • the burner 2 is likewise provided with a supporting grill 6 for a cooking container. More in particular, with reference to Figure 3, the burner 2 comprises a base 4 set underneath the supporting surface 1 , which is made of tempered glass, in which there is set an injector 23 for the combustible gas.
  • the base 4 presents peripheral ramifications or projections 24, which engage in the seat of the supporting surface 1 and carry both the flange 7 and the flat springs 8.
  • the base 4 of the burner 2 can be housed in a circular hole of the supporting surface 1 , without coming into contact with the latter and being supported, for example, by elastic means, on a structural element of the cooking hob set underneath the supporting surface 1 and not visible to the user.
  • a burner head that has a central body 12, closed by a top lid 10 and equipped, once more according to the prior art, with a horizontal Venturi tube (or radial Venturi) 1 1 for mixing of the gas with the primary air, and with a distribution chamber having holes facing outwards and designed to define a first central flame crown.
  • the burner head further comprises a toroidal body 13, which is surmounted by a an annular lid 14 and connected to the horizontal Venturi 1 1 and/or to the distribution chamber of the body 12 by appropriate radial channels (not illustrated), and which presents an inner series of holes and an outer series of holes designed for defining, respectively, a second flame crown and a third flame crown.
  • the second flame crown is, in particular, set in opposition to the first central flame crown, and the burner 2 is moreover provided with a grill 6 designed for supporting a cooking container.
  • the burner 2 is of the type in which the primary air I is taken in, thanks to the suction exerted by the Venturi 1 1 , from above the supporting surface 1 , penetrates, via channels (not illustrated), into the chamber defined by the burner base 4, and then is mixed with the gas coming out of the nozzle 23 in said horizontal Venturi (or radial Venturi) 1 1.
  • a burner of the type referred to above is known from the patent application EP-A-0.903.538 or from the publication EP-A-0.797.048, both of which are in the name of the present applicant. •
  • the burner 2 likewise presents a circumferential ring 9, which is made of the same material as or of a material different from that of the burner, set coaxial to the vertical axis of the said burner and set between the flame crowns and the supporting surface 1 made of tempered glass.
  • the ring 9 is separate from the supporting surface 1 , and the primary air I is induced to enter the burner above the supporting surface 1 and underneath the ring 9.
  • the above-mentioned shielding action which brings about lowering of the temperature of those areas of the supporting surface 1 in ' the proximity of the burner 2, has surprisingly proved sufficient for preventing the substantial degradation of the material of which the supporting surface 1 is made.
  • the interposition of the ring 9 prevents the generation of fractures and makes possible the use of said economic material in the production of cooking hobs.
  • the ring 9 has enabled reduction or elimination of the formation of halos or deformations of the supporting surface 1.
  • the contribution of the flow of primary air I in the action of local cooling is deemed particularly important, albeit not essential, in the case of brittle materials, such as tempered glass.
  • the ring 9 acts also partially as a heat sink, by conduction, of the heat produced by the burner 2 itself, thus lowering the temperature of the latter in the proximity of the said ring 9 and, hence, the temperature in proximity of the hole housing the burner in 'the supporting surface 1.
  • the plan diameter of the circumferential ring 9 is greater than the diameter of the hole present in supporting surface 1 made of tempered glass and is also greater than the plan diameter of the outermost flame crown defined by the toroidal body 13.
  • the ring 9 extends, in plan view, from the burner base 4, or from the burner head 5, up to beyond the flame crown made along the outer perimeter of the toroidal body 13.
  • the ring 9, as may be seen in Figure 3, is moreover preferably shaped substantially like a truncated cone with the major base facing the supporting surface 1 so as to prevent any possible residue of food that may come out of the cooking container from getting stuck on the ring 9, with the risk of combustion thereof.
  • Alternative embodiments of the ring 9 made with a convex shape have proven equally effective.
  • the circumferential ring 9 may be made separately from the burner 2 and coupled, by juxtaposing the various parts, to the latter, but may also be made integrally with an element of the burner 2 itself.
  • the ring 9 be coupled to a burner of the type described in EP-A-0.797.048, i.e., a burner, which comprises an inner metal plate shaped for separation of the fluid flows, said ring 9 may be made of a single piece with said inner metal plate, thus considerably simplifying its production.
  • FIG. 4 illustrates another embodiment of the present invention, in which, on a cooking hob provided with a supporting surface 1 made of a thermally degradable material, there is fit an atmospheric gas burner 3 of the type comprising just one flame crown.
  • the burner 3 comprises: a burner base 15 fit in a housing hole made on the supporting surface 1 ; elastic means for coupling to the supporting surface 1 , which consist of one or more flat springs 21 and a circular flange 20 for being set opposite to said springs; a burner head 16; and a top lid 17.
  • the base 15 is withheld in position thanks to the interposition of the edges of the hole for housing the supporting surface 1 between the spring 21 and the circular flange 20 and comprises a chamber, within which there is present an injector 23, fluid-connected to a pipe 25 for supplying the combustible gas.
  • the burner head 16 of the burner comprises a horizontal Venturi 18, constituted, according to the known art, of a reduced section portion and of a radial expansion chamber, and is enclosed by the lid 17.
  • the expansion chamber there is a portion for distribution of the gas-primary air I mix, which presents a series of holes that form the flame crown of the burner 3.
  • the burner 3 likewise presents, connected by interposition of parts, a circumferential ring 19, which extends from the burner head 16 of the burner up to beyond the flame crown.
  • the said circumferential ring 19 is separate from the supporting surface 1 in order to enable inflow of the primary air I between the said supporting surface 1 and the ring 19.
  • the effect of shielding from irradiation and of cooling of the supporting surface 1 by the flow of the incoming primary air I, obtained thanks to the ring 19, enables the use of cooking hobs provided with supporting surfaces made of thermally degradable materials, such as, for example, tempered glass, stainless steel, or enamelled steel.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Gas Burners (AREA)
  • Baking, Grill, Roasting (AREA)
  • Surface Treatment Of Glass (AREA)
  • Pre-Mixing And Non-Premixing Gas Burner (AREA)

Abstract

A cooking hob has a supporting surface made of a material the physical characteristics or the structure of which are degradable in the proximity of heat sources, such as, for example, tempered glass, and is provided with at least one hole, within which is housed at least partially an atmospheric gas burner, of the type comprising a burner base and a burner head with at least one flame crown. The burner further comprises a circumferential ring set between the flame crown and the supporting surface made of degradable material.

Description

"Cooking hob from tempered gloss or other thermodegradahle materials"
FIELD OF THE INVENTION
The present invention relates to the use of a domestic gas burner, of the type comprising a burner base and a burner head provided with at least one flame crown, in a cooking hob having a supporting surface made of a material that is physically and/or only structurally degradable in the presence of heat sources, such as, for example, tempered glass. By the term "cooking hob" is meant, in what follows, any installation for the cooking of foodstuff provided with a support for housing at least one burner designed for supplying heat to the foodstuff itself, comprising in this term installations such as, for example, surfaces equipped for cooking or cooking ranges. BACKGROUND ART
Amongst cooking hobs for domestic use, it forms part of the known art to use, for reasons that are prevalently aesthetic and/or regard practicality of maintenance, surfaces for housing (or supporting) one or more atmospheric gas burners, which are made of materials whose use is not suitable in the presence of high heat emissions, such as, for example, tempered glass, enamelled steel or stainless steel. Such materials, in fact, undergo a considerable degradation of their physical characteristics, and, in particular, their structural characteristics, when they are in the proximity of heat sources with high temperatures.
In particular, the use of supporting surfaces made of tempered glass, a material which, in its most typical compositions, poorly withstands temperatures higher than 280°C, is in any case more desirable in so far as tempered glass is able, from the aesthetic standpoint as well as the maintenance standpoint, to replace pyroceram, the use of which in cooking hobs entails extremely high costs.
The use of cooking hobs having a supporting surface made of pyroceram is, in fact, particularly widespread on account of its aesthetic qualities and the simple cleaning operations that such cooking hobs require. In spite of the brittleness of pyroceram, which implies the implementation of a number of constructional solutions aimed at preventing fractures, for example, due to the different rates of thermal expansion of the materials employed (steel or other metals for the burner and pyroceram for the supporting surface), the cooking hobs made of said material do not present any structural or mechanical degradation to thermal stresses coming from the burners, even though they prove particularly expensive and difficult to model. In order to overcome the aforesaid drawbacks, and at the same time maintain the aesthetic characteristics and the characteristics of practicality of maintenance of the cooking hobs with supporting surfaces made of pyroceram, there have been produced supporting surfaces made of tempered glass, which, however, have proven extremely sensitive to the heat developed by the burners, thus presenting unfavourable phenomena of structural yielding during use. The high temperatures and the constant irradiation localized in the proximity of the burner, to which the surface made of tempered glass is subject during combustion, as well as the consequent presence of a steep temperature gradient between adjacent areas on the glass surface, frequently lead to the formation of fractures and/or phenomena of structural yielding of the cooking hob. In order to solve the above problem, it has been proposed to increase the diameter of the holes provided for housing the burners obtained in the surface made of tempered glass and to affix, for each hole, a metal plate on the supporting surface, in a position corresponding to the burner, in order to screen the irradiation coming from the burner and from the bottom part of the cooking recipient, and directed towards the surface made of tempered glass. Said solution, which entails the use of metal plates having a plan extension that is other than negligible, is able to prevent fractures in the cooking hob, but is aesthetically far from pleasant and constitutes an obstacle to cleaning of the cooking hob. In addition, in embodiments of cooking hobs known to the prior art, for example, from the British patent application GB-A-2.068.104, such metal plates may be shaped like concave containers or trays, at the centre of which is housed the burner. This implies the drawback of accumulation of grease and ashes in the plate, with consequent inconvenience for cleaning of the cooking hob, as well as the need to achieve a considerable precision of fabrication and of assembly of the plates, which need to have low dimensional tolerances, as compared to the specific techniques envisaged in the design phase. Finally, the gas burners used with said protective plates are generally of the type in which the intake of primary air takes place underneath the cooking hob, given the overall dimensions of the protective plate itself and the laborious problems involved in making air-inflow inlets set above said plate. Gas burners in which the flow of primary air for combustion comes from underneath the cooking hob are less efficient and usually of larger dimensions as compared to burners in which the primary air is taken in above the cooking hob and likewise involve the presence of appropriately designed air intakes in the supporting surface, which, above all in brittle materials, such as tempered glass, can prove difficult to produce. There is consequently felt the need to find a solution, alternative to the ones so far identified, which will enable the use of supporting surfaces for atmospheric gas burners made of tempered glass whilst, still retaining the same aesthetic qualities and the practicality of production and maintenance of the surfaces made of pyroceram and without the need to use burners in which the intake of primary air takes place underneath the cooking hob.
As regards, instead, cooking hobs with a supporting surface made of stainless steel or other materials that are structurally resistant to heat but aesthetically degradable, such as enamelled steel, said cooking hobs tend, in the proximity of the burners, to undergo deformation and to change colour permanently, thus rendering the cooking hob itself somewhat unpleasant from the aesthetic point of view. Also for the above materials, there is felt the need to find solutions that will enable their use in cooking hobs provided with atmospheric gas burners, without there occurring any degradation in the appearance of the said cooking hob.
The above-mentioned needs are met by the present invention, which provides a surprising solution to the drawbacks that arise with the use, for the supporting surface in cooking hobs comprising one or more atmospheric gas burners, of materials that are physically and/or only structurally degradable when set in the presence of heat sources. Consequently, a purpose of the present invention is to provide a cooking hob having a supporting surface for housing the burners which is made of a material that is degradable in the presence of thermal emissions, which does not present the drawbacks referred to above, and at the same time is of pleasant appearance and simple to produce and maintain.
Another purpose of the present invention is to provide a cooking hob having a support made of a material that is degradable in the presence of thermal emissions and is provided with at least one gas burner, in which the latter is of the type that envisages the inflow of primary air from above the support that houses the burner itself. SUMMARY OF THE INVENTION The above and other purposes are achieved by the present invention, according to what is claimed in the first independent claim of use and in the subsequent dependent claims and according to what is claimed in the independent Claim 12 and in the subsequent product claims dependent thereon. According to the present invention, the solution to the drawbacks referred to above can be achieved by using, in a way that is unknown to the prior art and is in itself surprising, a gas bumer of an atmospheric type provided with a burner base, a burner head having at least one flame crown, and a circumferential ring, the gas burner being set in a hole made in the supporting surface of a cooking hob which is made of a material, the physical characteristics or the structure of which are degradable in the proximity of heat sources. The circumferential ring is set between the flame crown and the supporting surface. The action of the circumferential ring, which is preferably shaped like a truncated cone with the major base facing the supporting surface, is that of shielding the latter from the irradiation coming from the burner and from the heated recipient, in order to prevent, in the proximity of the said burner, there being formed temperature gradients such as might cause fracturing of the said supporting surface. The circumferential ring also has the function of dissipating the heat transmitted by irradiation and by conduction along the burner. According to a preferred feature of the present invention, the circumferential ring is separate from the support of the cooking hob in such a way that the space existing between the support and the circumferential ring will enable passage of the primary air directed to the burner, this implying the use of a burner of the type in which the primary air is taken in above the cooking hob.
In this way, the primary air inflow, which is drawn, for example, by a horizontal Venturi tube (also known as radial Venturi), with which the burner can be equipped, contributes to cooling down both the circumferential ring and the supporting surface in the proximity of the burner. According to a further feature of the present invention, the circumferential ring has a plan diameter greater than or equal to the diameter of the hole within which the burner is housed and preferably greater than or equal to the diameter of the flame crown. In a preferred embodiment of the present invention, the bumer is of the type comprising two or more flame crowns, and the supporting surface is made of tempered glass.
The present invention also intends to protect a cooking hob which has a support made of a material, the physical characteristics of which or the structure of which are degradable in the proximity of heat sources, and provided with at least one hole, within which is housed, at least partially, a gas burner of the type comprising a burner base and a burner head with at least one flame crown. Said burner is provided with a circumferential ring set between the flame crown and the supporting surface. Preferably, the circumferential ring is set at a distance from the supporting surface, and the primary air is taken in above the supporting surface and underneath said circumferential ring.
BRIEF DESCRIPTION OF THE DRAWINGS
There now follows a description, purely by way of non-limiting example, of a preferred embodiment of the present invention, with the aid of the attached figures, in which:
- Figure 1 is a perspective view from above of a cooking hob made of thermally degradable material, comprising a plurality of atmospheric gas burners, according to a particular feature of the present invention;
- Figure 2 is a profile view, partially in cross section, of a gas bumer provided with three flame crowns used on a cooking hob made of thermally degradable material, according to another feature of the present invention; - Figure 3 is a view in lateral cross section of the burner of Figure
2; and
- Figure 4 is a partially cut-away perspective view, of a burner provided with a single flame crown, according to a further feature of the present invention. DETAILED DESCRIPTION OF SOME PREFERRED EMBODIMENTS OF THE INVENTION
The present invention relates, with reference to Figure 1 , to the use of at least one gas burner 2, 3a, 3b or 3c with one or more flame crowns in a cooking hob, for example, a domestic cooking hob, provided with a supporting surface 1 made of a material the physical characteristics of which or the structure of which are degradable in the presence of hedt sources, such as, for example, tempered glass, stainless steel, or enamelled steel. The present invention likewise relates to a cooking hob having a supporting surface made of a degradable material. Figure 1 illustrates, then, purely by way of non-limiting example, a cooking hob provided with a supporting surface 1 , for example, made of tempered glass, on which are arranged, in purposely provided seats, a burner 2 with three flame crowns and three burners 3a, 3b, 3c having just one flame crown. As is illustrated in Figure 2, the burner 2 comprises, according to the present invention, a burner base 4 and a burner head 5 bearing the above-mentioned three flame crowns, as well as a circumferential ring 9 set between the flame crowns and the supporting surface 1. The outermost flame crown, defined in the burner head 5 by peripheral holes 26, can be seen in Figure 2.
The base 4 of the burner 2 is housed in a circular hole made in the said supporting surface 1 (and set in a position corresponding to the portion designated by 22 in Figure 2), supported by a plurality of fiat springs 8 set opposite to a circular flange 7, between which is set the portion of the supporting surface 1 adjacent to the housing hole. The burner 2 is likewise provided with a supporting grill 6 for a cooking container. More in particular, with reference to Figure 3, the burner 2 comprises a base 4 set underneath the supporting surface 1 , which is made of tempered glass, in which there is set an injector 23 for the combustible gas. The base 4 presents peripheral ramifications or projections 24, which engage in the seat of the supporting surface 1 and carry both the flange 7 and the flat springs 8. The coupling of the springs 8 to the circular flange 7 and the mutual clamping thereof, after prior interposition of the edges of the housing hole of the burner 2, enables stable fixing of the burner base 4 to the supporting surface 1. In alternative embodiments (not illustrated), the base 4 of the burner 2 can be housed in a circular hole of the supporting surface 1 , without coming into contact with the latter and being supported, for example, by elastic means, on a structural element of the cooking hob set underneath the supporting surface 1 and not visible to the user. According to the known art, above the base 4, and constrained thereto in a removable way, there is a burner head that has a central body 12, closed by a top lid 10 and equipped, once more according to the prior art, with a horizontal Venturi tube (or radial Venturi) 1 1 for mixing of the gas with the primary air, and with a distribution chamber having holes facing outwards and designed to define a first central flame crown. The burner head further comprises a toroidal body 13, which is surmounted by a an annular lid 14 and connected to the horizontal Venturi 1 1 and/or to the distribution chamber of the body 12 by appropriate radial channels (not illustrated), and which presents an inner series of holes and an outer series of holes designed for defining, respectively, a second flame crown and a third flame crown. The second flame crown is, in particular, set in opposition to the first central flame crown, and the burner 2 is moreover provided with a grill 6 designed for supporting a cooking container.
The burner 2, moreover, is of the type in which the primary air I is taken in, thanks to the suction exerted by the Venturi 1 1 , from above the supporting surface 1 , penetrates, via channels (not illustrated), into the chamber defined by the burner base 4, and then is mixed with the gas coming out of the nozzle 23 in said horizontal Venturi (or radial Venturi) 1 1. A burner of the type referred to above is known from the patent application EP-A-0.903.538 or from the publication EP-A-0.797.048, both of which are in the name of the present applicant. •
According to the present invention, the burner 2 likewise presents a circumferential ring 9, which is made of the same material as or of a material different from that of the burner, set coaxial to the vertical axis of the said burner and set between the flame crowns and the supporting surface 1 made of tempered glass. Advantageously, as will emerge clearly from what follows, the ring 9 is separate from the supporting surface 1 , and the primary air I is induced to enter the burner above the supporting surface 1 and underneath the ring 9. The presence of the circumferential ring 9, which is conveniently set between the heat source, represented by the flame crown or flame crowns, and the supporting surface made of tempered glass, enables adequate shielding of the supporting surface made of tempered glass 1 from the irradiation coming from the flame crowns and, albeit to a lesser extent, also from the irradiation coming from the heated cooking container.
The above-mentioned shielding action, which brings about lowering of the temperature of those areas of the supporting surface 1 in 'the proximity of the burner 2, has surprisingly proved sufficient for preventing the substantial degradation of the material of which the supporting surface 1 is made. In the case of tempered glass, for example, the interposition of the ring 9 prevents the generation of fractures and makes possible the use of said economic material in the production of cooking hobs. Also when used with surfaces made of stainless steel or enamelled steel, the ring 9 has enabled reduction or elimination of the formation of halos or deformations of the supporting surface 1.
In addition, the inflow of primary air I, drawn by the Venturi 1 1 , in' the space made between the ring 9 and the supporting surface 1 , which is substantially at room temperature, contributes to a cooling down by convection of both the supporting surface 1 and the circumferential ring 9. The contribution of the flow of primary air I in the action of local cooling is deemed particularly important, albeit not essential, in the case of brittle materials, such as tempered glass. Finally, the ring 9 acts also partially as a heat sink, by conduction, of the heat produced by the burner 2 itself, thus lowering the temperature of the latter in the proximity of the said ring 9 and, hence, the temperature in proximity of the hole housing the burner in 'the supporting surface 1. According to α preferential feature of the present invention, the plan diameter of the circumferential ring 9 is greater than the diameter of the hole present in supporting surface 1 made of tempered glass and is also greater than the plan diameter of the outermost flame crown defined by the toroidal body 13. In this way, the ring 9 extends, in plan view, from the burner base 4, or from the burner head 5, up to beyond the flame crown made along the outer perimeter of the toroidal body 13. The above dimensions of the ring 9, which are much greater than the dimensions of similar rings made in burners provided in traditional cooking hobs, enable an effective shielding of the supporting surface underneath.
The ring 9, as may be seen in Figure 3, is moreover preferably shaped substantially like a truncated cone with the major base facing the supporting surface 1 so as to prevent any possible residue of food that may come out of the cooking container from getting stuck on the ring 9, with the risk of combustion thereof. Alternative embodiments of the ring 9 made with a convex shape have proven equally effective. Furthermore, the circumferential ring 9 may be made separately from the burner 2 and coupled, by juxtaposing the various parts, to the latter, but may also be made integrally with an element of the burner 2 itself. For example, should the ring 9 be coupled to a burner of the type described in EP-A-0.797.048, i.e., a burner, which comprises an inner metal plate shaped for separation of the fluid flows, said ring 9 may be made of a single piece with said inner metal plate, thus considerably simplifying its production.
Materials that may be suitable for the production of the ring 9 are steel, aluminium alloys (Al-Si or Al-Ni), or other alloys or metal materials, such as brass, or else ceramics or plastic technopolymers with ceramic fillers or with fibre fillers that are resistant to high temperatures. Figure 4 illustrates another embodiment of the present invention, in which, on a cooking hob provided with a supporting surface 1 made of a thermally degradable material, there is fit an atmospheric gas burner 3 of the type comprising just one flame crown.
The burner 3 comprises: a burner base 15 fit in a housing hole made on the supporting surface 1 ; elastic means for coupling to the supporting surface 1 , which consist of one or more flat springs 21 and a circular flange 20 for being set opposite to said springs; a burner head 16; and a top lid 17. The base 15 is withheld in position thanks to the interposition of the edges of the hole for housing the supporting surface 1 between the spring 21 and the circular flange 20 and comprises a chamber, within which there is present an injector 23, fluid-connected to a pipe 25 for supplying the combustible gas. The burner head 16 of the burner comprises a horizontal Venturi 18, constituted, according to the known art, of a reduced section portion and of a radial expansion chamber, and is enclosed by the lid 17. At the radial ends of the expansion chamber there is a portion for distribution of the gas-primary air I mix, which presents a series of holes that form the flame crown of the burner 3. The burner 3 likewise presents, connected by interposition of parts, a circumferential ring 19, which extends from the burner head 16 of the burner up to beyond the flame crown. The said circumferential ring 19 is separate from the supporting surface 1 in order to enable inflow of the primary air I between the said supporting surface 1 and the ring 19.
Also by using the burner 3, illustrated in Figure 4, the effect of shielding from irradiation and of cooling of the supporting surface 1 by the flow of the incoming primary air I, obtained thanks to the ring 19, enables the use of cooking hobs provided with supporting surfaces made of thermally degradable materials, such as, for example, tempered glass, stainless steel, or enamelled steel.

Claims

Claims
1. Use of a gas burner, of the type comprising a burner base and a burner head provided with at least one flame crown, in a cooking hob having a supporting surface made of a material the physical characteristics or the structure of which are degradable in the proximity of heat sources, said burner being at least partially housed in a hole made in said cooking hob and comprising a circumferential ring set between said at least one flame crown and said supporting surface.
2. Use of a gas burner according to Claim 1 , in which said circumferential ring is set at a distance from said supporting surface and the primary air is taken in above the supporting surface and underneath said circumferential ring .
3. Use of a gas burner according to Claim 1 or Claim 2, in which said circumferential ring has a plan diameter equal to or greater than the diameter of said flame crown.
4. Use of a gas burner according to any one of the preceding claims, characterized in that said circumferential ring has a plan diameter greater than or equal to the diameter of said hole within which the burner is housed.
5. Use of a gas burner according to any one of the preceding claims, in which said circumferential ring substantially has the shape of a truncated cone and/or a convex shape, the major base of which faces said supporting surface.
6. Use of a gas burner according to any one of the preceding claims, in which said burner comprises at least one horizontal Venturi tube for mixing of primary air and combustible gas.
7. Use of a gas burner according to any one of the preceding claims, in which said burner comprises two or more flame crowns.
8. Use of α gas burner according to any one of the preceding claims, in which said supporting surface of the cooking hob is made of tempered glass, or of stainless steel, or of enamelled steel.
9. Use of a gas burner according to any one of the preceding claims, in which said circumferential ring is fixed to the base or to the head of the burner.
10. Use of a gas burner according to any one of the preceding claims, in which said burner comprises an intermediate plate for the separation of the fluid flows towards and in the burner, and in which said circumferential ring is fixed in an integral way to said intermediate plate.
1 1. Use of a gas burner according to any one of the preceding claims, in which said circumferential ring is made of steel, or aluminium, or aluminium alloys, or brass, or ceramic, or plastic technopolymers with ceramic fillers or with fibre fillers that are resistant to high temperatures.
12. A cooking hob having a supporting surface which is made of a material the physical characteristics or structure of which are degradable in the proximity of heat sources and is provided with at least one hole within which is housed at least partially a gas burner of the type comprising a burner base and a burner head having at least one flame crown, as well as a circumferential ring set between said at least one flame crown and said supporting surface.
13. The cooking hob according to Claim 12, in which said circumferential ring is set at a distance from said supporting surface, and the primary air is taken in above the supporting surface and underneath said circumferential ring .
14. The cooking hob according to Claim 12 or Claim 13, in which said burner is of the type comprising a burner head having two or more flame crowns.
15. The cooking hob according to any one of Claims 12, 13 or 14, in which said circumferential ring has a plan diameter equal to or greater than the diameter of said flame crown.
16. The cooking hob according to any one of Claims 12 to 15, in which said circumferential ring has a plan diameter greater than or equal to the diameter of said hole within which the burner is housed.
17. The cooking hob according to any one of the preceding Claims 12 to l ό, in which said circumferential ring has a shape that is substantially a truncated cone and/or a convex shape.
18. The cooking hob according to Claim 17, in which the major base of said circumferential ring faces the supporting surface.
19. The cooking hob according to any one of Claims 12 to 18, in which said circumferential ring is made of steel, or aluminium, or aluminium alloys, or brass, or ceramic, or plastic technopolymers with ceramic fillers or with fibre fillers that are resistant to high temperatures.
20. The cooking hob according to any one of Claims 12 to 19, in which said supporting surface of the cooking hob is made of tempered glass or of stainless steel or of enamelled steel.
EP03739599A 2002-02-18 2003-01-30 Cooking hob from tempered glass or other thermodegradable materials Expired - Lifetime EP1485651B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SI200330733T SI1485651T1 (en) 2002-02-18 2003-01-30 Cooking hob from tempered glass or other thermodegradable materials

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
IT2002MI000315A ITMI20020315A1 (en) 2002-02-18 2002-02-18 HOB IN TEMPERED GLASS OR OTHER THERMALLY DEGRADABLE MATERIAL
ITMI20020315 2002-02-18
PCT/IB2003/000283 WO2003069231A1 (en) 2002-02-18 2003-01-30 Cooking hob from tempered glass or other thermodegradable materials

Publications (2)

Publication Number Publication Date
EP1485651A1 true EP1485651A1 (en) 2004-12-15
EP1485651B1 EP1485651B1 (en) 2007-03-28

Family

ID=11449278

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03739599A Expired - Lifetime EP1485651B1 (en) 2002-02-18 2003-01-30 Cooking hob from tempered glass or other thermodegradable materials

Country Status (22)

Country Link
US (1) US20050145239A1 (en)
EP (1) EP1485651B1 (en)
JP (1) JP2005517887A (en)
KR (1) KR20040095220A (en)
CN (1) CN2557834Y (en)
AR (1) AR038507A1 (en)
AT (1) ATE358259T1 (en)
AU (1) AU2003245049B2 (en)
BR (1) BR0307694A (en)
CA (1) CA2475080A1 (en)
CO (1) CO5611222A2 (en)
DE (1) DE60312832T2 (en)
ES (1) ES2285140T3 (en)
IL (1) IL163446A (en)
IT (1) ITMI20020315A1 (en)
MX (1) MXPA04008027A (en)
NZ (1) NZ534596A (en)
PL (1) PL371118A1 (en)
PT (1) PT1485651E (en)
RU (1) RU2311590C2 (en)
SI (1) SI1485651T1 (en)
WO (1) WO2003069231A1 (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITUD20030137A1 (en) * 2003-06-23 2004-12-24 Sami Srl TRIPLE CROWN BURNER.
EP1512908A1 (en) * 2003-09-05 2005-03-09 Electrolux Home Products Corporation N.V. Gas burner
CN100360850C (en) * 2005-07-14 2008-01-09 宁波方太厨具有限公司 Burner with easily cleaning movable decorative board
EP2295868B1 (en) 2009-09-09 2016-10-26 BSH Hausgeräte GmbH Gas range and gas hob with associated gas range
JP5296718B2 (en) * 2010-01-28 2013-09-25 東京瓦斯株式会社 Cooking equipment
EP2366953B1 (en) * 2010-03-18 2016-06-15 Electrolux Home Products Corporation N.V. Gas cooking appliance
EP2447605B1 (en) 2010-10-27 2012-12-05 Electrolux Home Products Corporation N.V. Heating element and method of manufacturing a base body of a heating element
AU2010366054B2 (en) * 2010-12-22 2015-06-11 Sabaf S.P.A. Gas burner
ITTO20110078U1 (en) 2011-07-29 2013-01-30 Indesit Co Spa GAS BURNER, IN PARTICULAR FOR A FOOD COOKING APPLIANCE
ITTO20110960A1 (en) * 2011-10-24 2013-04-25 Indesit Co Spa SUPPORT GRILL FOR HOME APPLIANCES
ES2621792T3 (en) * 2011-11-04 2017-07-05 Electrolux Home Products Corporation N.V. Gas burner set, gas hob and appliance with gas burners
EP2607789B1 (en) * 2011-12-22 2017-02-01 Indesit Company S.p.A. A cooking top, in particular for household use
ITTO20111190A1 (en) * 2011-12-22 2013-06-23 Indesit Co Spa COOKTOP, IN PARTICULAR FOR HOUSEHOLD USE
CN107975830B (en) * 2017-05-25 2023-11-17 宁波方太厨具有限公司 Kitchen range support
US11085645B2 (en) * 2018-05-31 2021-08-10 Haier Us Appliance Solutions, Inc. Eductor for a gas cooktop appliance

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3123751C3 (en) * 1981-06-15 1998-01-29 Sabaf Spa Gas burner for a hot plate
DE4125308C2 (en) * 1991-07-31 2002-06-13 Isphording Germany Gmbh gas burner
DE797048T1 (en) 1996-03-19 1998-03-12 Sabaf Spa Gas burners for kitchen appliances
JP3711182B2 (en) * 1997-01-20 2005-10-26 株式会社ハーマンプロ Gas burner for stove
EP0908682B1 (en) * 1997-10-08 2002-04-17 SABAF S.p.A. Gas burner for domestic appliances
US6299436B1 (en) * 1997-10-20 2001-10-09 Bsh Home Appliances Corporation Plurality fingered burner
FR2804496B1 (en) * 2000-01-28 2002-07-19 Sourdillon Sa MULTIPLE FLAME CROWN GAS BURNER
IT1318126B1 (en) * 2000-07-06 2003-07-23 Sabaf Spa BURNER WITH INTERNAL SEPARATOR
DE20016145U1 (en) * 2000-09-18 2001-01-18 Schott Glas Hob with at least one atmospheric gas burner

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO03069231A1 *

Also Published As

Publication number Publication date
ITMI20020315A1 (en) 2003-08-18
SI1485651T1 (en) 2007-06-30
RU2004127919A (en) 2006-02-10
PL371118A1 (en) 2005-06-13
RU2311590C2 (en) 2007-11-27
KR20040095220A (en) 2004-11-12
EP1485651B1 (en) 2007-03-28
IL163446A (en) 2009-06-15
CA2475080A1 (en) 2003-08-21
CO5611222A2 (en) 2006-02-28
DE60312832T2 (en) 2007-08-16
MXPA04008027A (en) 2004-11-26
CN2557834Y (en) 2003-06-25
ES2285140T3 (en) 2007-11-16
AR038507A1 (en) 2005-01-19
JP2005517887A (en) 2005-06-16
PT1485651E (en) 2007-06-18
ATE358259T1 (en) 2007-04-15
AU2003245049A1 (en) 2003-09-04
AU2003245049B2 (en) 2008-03-20
BR0307694A (en) 2005-01-04
ITMI20020315A0 (en) 2002-02-18
NZ534596A (en) 2006-07-28
US20050145239A1 (en) 2005-07-07
WO2003069231A1 (en) 2003-08-21
DE60312832D1 (en) 2007-05-10

Similar Documents

Publication Publication Date Title
EP1485651B1 (en) Cooking hob from tempered glass or other thermodegradable materials
AU2009262766B2 (en) Cooktop swirl burner
CN105889923A (en) High-efficiency three-ring fire burner and gas stove
PL190118B1 (en) Gas burner for a gas range
CN108386838A (en) Burner and gas cooker
WO2003036168A1 (en) Gas burner with several flame sectors
US6148812A (en) Cooking unit, such as a stove, for cooking food
CN101438935B (en) Multifunctional pot rack
US6691699B1 (en) Cooking plate
CN208108096U (en) Burner and gas cooker
CN208312369U (en) burner and gas cooker
CN112815360A (en) Cooking utensils
CN106439937A (en) Anti-backfire civil gas range
KR100571282B1 (en) Gas stove
CN218583219U (en) Double-layer energy-gathering heat insulation furnace frame
CN212777480U (en) Flat gas stove
CN210688356U (en) Pot support and gas stove using same
CN108386833A (en) burner and gas cooker
CN212869873U (en) Kitchen casting furnace is fried to commercial gas
CN2262188Y (en) Double chamber gas combustion range
CN2378652Y (en) Energy-saving stove for gaseous fuels
CN2205500Y (en) Wind-proof energy saving stove
CN2255563Y (en) Three-chamber gas range
CN112944399A (en) Sheet metal structure burner of gas stove
WO2022075930A1 (en) A hob with grate having flat frame

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

17P Request for examination filed

Effective date: 20040914

AK Designated contracting states

Kind code of ref document: A1

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

REG Reference to a national code

Ref country code: HK

Ref legal event code: DE

Ref document number: 1068161

Country of ref document: HK

17Q First examination report despatched

Effective date: 20050617

17Q First examination report despatched

Effective date: 20050617

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

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

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070328

Ref country code: LI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070328

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070328

Ref country code: BE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070328

Ref country code: CH

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070328

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REF Corresponds to:

Ref document number: 60312832

Country of ref document: DE

Date of ref document: 20070510

Kind code of ref document: P

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: PT

Ref legal event code: SC4A

Free format text: AVAILABILITY OF NATIONAL TRANSLATION

Effective date: 20070604

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070628

REG Reference to a national code

Ref country code: HK

Ref legal event code: GR

Ref document number: 1068161

Country of ref document: HK

ET Fr: translation filed
REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2285140

Country of ref document: ES

Kind code of ref document: T3

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070328

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070328

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070328

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

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

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20080102

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070629

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20080125

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20080123

Year of fee payment: 6

Ref country code: GB

Payment date: 20080125

Year of fee payment: 6

Ref country code: IT

Payment date: 20080125

Year of fee payment: 6

Ref country code: NL

Payment date: 20080131

Year of fee payment: 6

Ref country code: PT

Payment date: 20080121

Year of fee payment: 6

Ref country code: SI

Payment date: 20080121

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20080130

Year of fee payment: 6

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080131

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: TR

Payment date: 20080122

Year of fee payment: 6

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070328

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080130

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070328

REG Reference to a national code

Ref country code: PT

Ref legal event code: MM4A

Free format text: LAPSE DUE TO NON-PAYMENT OF FEES

Effective date: 20090730

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070628

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20090130

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 20090801

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090801

Ref country code: PT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090730

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20091030

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090131

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090801

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090130

REG Reference to a national code

Ref country code: SI

Ref legal event code: KO00

Effective date: 20090914

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20090131

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090131

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090202

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080130

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070929

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090130

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090130