EP0834703B1 - Forced convection steam oven - Google Patents

Forced convection steam oven Download PDF

Info

Publication number
EP0834703B1
EP0834703B1 EP97420184A EP97420184A EP0834703B1 EP 0834703 B1 EP0834703 B1 EP 0834703B1 EP 97420184 A EP97420184 A EP 97420184A EP 97420184 A EP97420184 A EP 97420184A EP 0834703 B1 EP0834703 B1 EP 0834703B1
Authority
EP
European Patent Office
Prior art keywords
water
pipe
oven
inlet pipe
storage tank
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.)
Expired - Lifetime
Application number
EP97420184A
Other languages
German (de)
French (fr)
Other versions
EP0834703A1 (en
Inventor
Raymond Violi
Laurent Personnettaz
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.)
Societe Cooperative de Production Bourgeois SCOP
Original Assignee
Societe Cooperative de Production Bourgeois SCOP
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 Societe Cooperative de Production Bourgeois SCOP filed Critical Societe Cooperative de Production Bourgeois SCOP
Publication of EP0834703A1 publication Critical patent/EP0834703A1/en
Application granted granted Critical
Publication of EP0834703B1 publication Critical patent/EP0834703B1/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
    • F24C15/00—Details
    • F24C15/32—Arrangements of ducts for hot gases, e.g. in or around baking ovens
    • F24C15/322—Arrangements of ducts for hot gases, e.g. in or around baking ovens with forced circulation
    • F24C15/327—Arrangements of ducts for hot gases, e.g. in or around baking ovens with forced circulation with air moisturising

Definitions

  • the present invention relates to steam ovens and forced convection, in which a cooking chamber contains a turbine which circulates air by passing it over heating elements downstream of the turbine, with a device for generating steam. to produce steam introduced into the cooking chamber.
  • Document DE 41 31 748 A describes a forced convection steam oven in which steam is produced by spraying water on the heating elements.
  • the document EP-A-0 383 366 also describes a steam oven and forced convection.
  • the document expresses the problem of obtaining a regular and constant vaporization.
  • the previous solutions mentioned consist in injecting water under great pressure.
  • the solution taught by this document consists in providing a regulator, inserted upstream in the water supply pipe, and which is adjusted so that the water flows without pressure at the outlet of the pipe. above the turbine hub. For this, the regulator must be adjusted according to the water pressure upstream of the regulator. It is found that such a solution does not provide sufficient regularity for the production of steam in the oven.
  • the present invention results from the observation that the operating faults result from variations in the water supply pressure, producing excessively large variations in the flow rate of water projected onto the heating elements. Too much water leads to a flow of unvaporized water. Too low a water flow leads to insufficient steam.
  • the problem proposed by the present invention is to design a steam oven and forced convection in which the production of steam is satisfactorily controlled, whatever the water supply conditions, and in particular the pressure conditions of the water in the water supply source, so as to create consistent and satisfactory conditions for spraying and spraying water.
  • the invention provides the features of the characterizing part of claim 1.
  • Such a structure of a water flow control device is particularly advantageous, simple and inexpensive to manufacture, reliable, and effective.
  • the overflow pipe leads the excess water into a water discharge pipe from the oven enclosure.
  • the overflow of water is thus used to cool the condensation water leaving the oven.
  • a device for regulating the flow of water which further comprises a pressure equalization pipe, comprising an upstream part in a siphon communicating with the lower zone of the tank, and connected downstream to an outlet pipe. steam from the oven. In this way, the water flow for the production of steam is independent of the pressure prevailing inside the oven.
  • the spraying means is a drilled cone, mounted axially at the end of the rotation shaft of the turbine.
  • the turbine comprises a flange perpendicular to its rotation shaft and carrying fins projecting from the anterior face of the flange, the spray cone being fixed in the center of the anterior face of the flange with its apex directed towards the flange, l '' inlet pipe outlet orifice directing water radially on the lateral surface of the spray cone.
  • the oven comprises an enclosure 1 limited by a muffle 2, the opening 3 of which is closed by a door 4.
  • An air circulation turbine 5 is placed in the enclosure 1 in the vicinity of the rear wall 6 of the muffle 2.
  • the air circulation turbine 5 shown in the figure comprises a flange 7, generally parallel to the rear wall 6 and mounted at the end of a rotation shaft 8 itself driven in rotation by an electric motor 9.
  • the flange 7 carries fins 10 projecting from the front face 11 of the flange 7.
  • a spray cone 12 is fixed to the center of the front face 11 of the flange 7, with its apex directed towards the flange 7.
  • the spray cone 12 is pierced with holes such as hole 13, and is mounted axially at the end of the rotation shaft 8 of the turbine 5.
  • An inlet pipe 14 makes it possible to conduct water from a water supply source 15, such as the public drinking water supply network, to an outlet orifice 16 disposed in the enclosure 1 and adapted to direct a jet of water radially onto the lateral surface of the spray cone 12.
  • a water supply source 15 such as the public drinking water supply network
  • the spray cone I2 projects the water onto the fins 10 of the air circulation turbine 5 which itself projects the water onto heating elements 17 such as electrical resistors placed on the periphery of the turbine 5, c ' that is to say downstream of the turbine 5 in the direction of air circulation.
  • the invention provides for incorporating a water flow control device 18, producing a water flow independent of the water pressure in the water supply source 15 to the inlet of the inlet pipe 14.
  • the water flow control device 18 comprises a sealed reservoir 19, disposed at a level higher than that of the outlet orifice 16.
  • An upstream section 20 of inlet pipe 14 is provided with a solenoid valve 21 controlled by a timed control 22 ensuring the intermittent opening of the solenoid valve 21 according to a determined cycle.
  • the upstream section 20 of inlet pipe 14 is connected upstream to the water supply source 15, and is connected downstream to the sealed tank 19.
  • a downstream section 23 of inlet pipe 14 is adapted to conduct the water from the tank 19 to the outlet orifice 16.
  • An overflow line 24 is adapted to evacuate the water contained in the tank 19 beyond a determined maximum level 25.
  • the overflow line 24 leads the excess of water in a water evacuation pipe 26 ensuring the evacuation of the condensation water from a lower orifice 27 formed in the lower wall 28 of the muffle 2.
  • the overflow line 24 descends from the tank 19, and its inlet orifice is located at the determined maximum level 25.
  • a tubular inlet portion of the overflow line 24 enters the tank 19 through an opening in its lower wall, up to level 25.
  • the water evacuation pipe 26 can, for example, conduct the condensation water to a condensation box 29, the outlet 30 of which is connected to the waste water evacuation pipes, preferably by a siphon.
  • a steam outlet pipe 31 is connected to the enclosure 1 by an upper orifice 32 formed in the upper wall 33 of the muffle 2.
  • the steam outlet pipe 31 is provided with a catalyst 34 and its downstream outlet 35 is connected to the condensation box 29.
  • a vent pipe 36 is connected at the top of the tank 19.
  • the vent pipe 36 can advantageously comprise a valve 136, arranged so as to allow the outlet of the gases to the atmosphere but preventing the outlet of water to the outside of the tank 19.
  • vent pipe 36 may include a calibrated leak, allowing the calibrated opening of the vent pipe 36.
  • the downstream section 23 of the inlet pipe 14 may advantageously comprise a device for calibrating the water flow 37, placed at the outlet of the tank 19.
  • the water flow regulation device 18 further comprises a pressure equalization pipe 38, comprising an upstream part 39 in a siphon communicating with the lower zone of the tank 19, and connected downstream to the steam outlet pipe 31 of the furnace, preferably downstream of the catalyst 34.
  • the timed control 22 can advantageously be adjusted to ensure the intermittent opening of the solenoid valve 21 according to a cycle ensuring a continuous presence of water in the tank 19, and an intermittent flow of water in the overflow pipe 24. A continuous projection of water is thus produced through the outlet orifice 16 on the projection cone 12, and a regular production of vapor inside the enclosure 1.
  • FIG. 2 illustrates the operation of the water flow regulation device 18.
  • Curve a illustrates the temporal variation of the supply water flow rate in the upstream section 20 of the inlet pipe, with a constant flow rate D between the times t1 and t2, corresponding to the open state of the solenoid valve 21 , and a zero flow between times t2 and t3 corresponding to the closed state of the solenoid valve 21.
  • Curve b) illustrates the temporal variation of the water level in the reservoir 19. From a minimum level m not zero at time t1, the level increases to the determined maximum 25 reached at time t4 prior to t2, then remains constant until t2 then decreases regularly to the minimum at time t3.
  • Curve c) illustrates the temporal variation of the water flow in the overflow pipe 24.
  • a water flow is present between times t4 and t2.
  • Curve d illustrates the constant water flow d in the downstream section 23 of inlet pipe 14.
  • durations t2- t1 and t3- t1 to respect the permanent presence of water in the tank 19 and the production of an intermittent flow in the overflow pipe 24. These durations will be preset in the factory.
  • the flow rate D is modified. This results in a modification of the instant t4, and therefore a modification of the flow time in the overflow pipe 24, without altering the water flow d in the downstream section 23 of the inlet pipe 14.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cookers (AREA)
  • Control Of Turbines (AREA)
  • Nozzles (AREA)
  • Air Humidification (AREA)
  • Devices For Medical Bathing And Washing (AREA)

Abstract

The oven has an enclosure (1) with an air circulation fan (5) and heating elements (17) placed in front of the fan. An inlet pipe (14) carries water from a supply source to a delivery orifice (16) that directs a jet of water onto a cone (12) to produce water droplets, which splash onto the blades of the fan and onto the heating elements. A water flow regulator (18) is placed in the inlet pipe. The regulator has a sealed reservoir (19), an overflow (24), and a connection (36) to free air. A solenoid valve (21) controlled by a timer (22) controls supply to the reservoir, allowing regular generation of steam inside the oven.

Description

La présente invention concerne les fours à vapeur et convexion forcée, dans lesquels une enceinte de cuisson contient une turbine faisant circuler de l'air en le passant sur des éléments chauffants en aval de la turbine, avec un dispositif de génération de vapeur d'eau pour produire de la vapeur d'eau introduite dans l'enceinte de cuisson.The present invention relates to steam ovens and forced convection, in which a cooking chamber contains a turbine which circulates air by passing it over heating elements downstream of the turbine, with a device for generating steam. to produce steam introduced into the cooking chamber.

Le document DE 41 31 748 A décrit un four à vapeur et convexion forcée dans lequel la production de vapeur est effectuée par pulvérisation d'eau sur les éléments chauffants.Document DE 41 31 748 A describes a forced convection steam oven in which steam is produced by spraying water on the heating elements.

Dans un tel four à vapeur, on constate une grande irrégularité de rendement de production de vapeur, et notamment l'apparition d'écoulements d'eau non pulvérisée et vaporisée, réduisant le rendement énergétique du four.In such a steam oven, there is a great irregularity in steam production efficiency, and in particular the appearance of flows of unsprayed and vaporized water, reducing the energy efficiency of the oven.

Le document EP-A-0 383 366 décrit également un four à vapeur et convexion forcée. Le document exprime le problème de l'obtention d'une vaporisation régulière et constante. Les solutions antérieures mentionnées consistent à injecter l'eau sous une grande pression. La solution enseignée par ce document consiste à prévoir un détendeur, inséré en amont dans la canalisation d'amenée d'eau, et que l'on règle pour que l'eau s'écoule sans pression à la sortie de la canalisation. au-dessus du moyeu de turbine. Pour cela, on doit régler le détendeur en fonction de la pression d'eau en amont du détendeur. On constate qu'une telle solution n'assure pas une régularité suffisante de production de vapeur dans le four.The document EP-A-0 383 366 also describes a steam oven and forced convection. The document expresses the problem of obtaining a regular and constant vaporization. The previous solutions mentioned consist in injecting water under great pressure. The solution taught by this document consists in providing a regulator, inserted upstream in the water supply pipe, and which is adjusted so that the water flows without pressure at the outlet of the pipe. above the turbine hub. For this, the regulator must be adjusted according to the water pressure upstream of the regulator. It is found that such a solution does not provide sufficient regularity for the production of steam in the oven.

La présente invention résulte de l'observation selon laquelle les défauts de fonctionnement résultent de variations de la pression d'alimentation d'eau, produisant des variations trop importantes du débit d'eau projetée sur les éléments chauffants. Une quantité trop importante d'eau conduit à un écoulement d'eau non vaporisée. Un débit trop faible d'eau conduit à une insuffisance de vapeur.The present invention results from the observation that the operating faults result from variations in the water supply pressure, producing excessively large variations in the flow rate of water projected onto the heating elements. Too much water leads to a flow of unvaporized water. Too low a water flow leads to insufficient steam.

Le problème proposé par la présente invention est de concevoir un four à vapeur et convexion forcée dans lequel la production de vapeur soit contrôlée de manière satisfaisante, quelles que soient les conditions d'alimentation d'eau, et notamment les conditions de pression de l'eau dans la source d'alimentation d'eau, de façon à créer des conditions constantes et satisfaisantes de pulvérisation et de vaporisation d'eau.The problem proposed by the present invention is to design a steam oven and forced convection in which the production of steam is satisfactorily controlled, whatever the water supply conditions, and in particular the pressure conditions of the water in the water supply source, so as to create consistent and satisfactory conditions for spraying and spraying water.

Pour atteindre ces objets ainsi que d'autres, l'invention prévoit les caractéristiques de la partie caractérisante de la revendication 1.To achieve these and other objects, the invention provides the features of the characterizing part of claim 1.

Selon un mode de réalisation avantageux, le dispositif de régulation de débit d'eau comprend :

  • un tronçon amont de canalisation d'entrée, muni d'une électrovanne pilotée par une commande temporisée assurant l'ouverture intermittente de l'électrovanne selon un cycle déterminé, raccordé en amont à la source d'alimentation d'eau, et raccordé en aval au réservoir étanche,
  • un tronçon aval de canalisation d'entrée, adapté pour conduire l'eau depuis le réservoir jusqu'à l'orifice de sortie,
  • une canalisation de mise à l'air libre, raccordée en partie supérieure du réservoir, et comportant de préférence un clapet s'opposant à la sortie de l'eau,
  • une canalisation de trop-plein, adaptée pour évacuer l'eau contenue dans le réservoir au-delà d'un niveau maximum déterminé.
According to an advantageous embodiment, the device for regulating water flow comprises:
  • an upstream section of inlet pipe, provided with a solenoid valve controlled by a timed control ensuring the intermittent opening of the solenoid valve according to a determined cycle, connected upstream to the water supply source, and connected downstream to the sealed tank,
  • a downstream section of inlet pipe, adapted to conduct water from the reservoir to the outlet orifice,
  • a vent pipe, connected to the upper part of the tank, and preferably comprising a valve opposing the outlet of the water,
  • an overflow pipe, adapted to evacuate the water contained in the tank beyond a determined maximum level.

Une telle structure de dispositif de régulation de débit d'eau est particulièrement avantageuse, simple et peu onéreuse à fabriquer, fiable, et efficace.Such a structure of a water flow control device is particularly advantageous, simple and inexpensive to manufacture, reliable, and effective.

De préférence, la canalisation de trop-plein conduit l'excès d'eau dans une canalisation d'évacuation d'eau de l'enceinte du four. On utilise ainsi le trop-plein d'eau pour refroidir l'eau de condensation sortant du four.Preferably, the overflow pipe leads the excess water into a water discharge pipe from the oven enclosure. The overflow of water is thus used to cool the condensation water leaving the oven.

On peut trouver avantage à prévoir un dispositif de régulation de débit d'eau qui comprend en outre une canalisation d'équilibrage de pression, comportant une partie amont en siphon communiquant avec la zone inférieure du réservoir, et raccordée en aval à une canalisation de sortie de vapeur du four. De la sorte, le débit d'eau pour la production de vapeur est indépendant de la pression régnant à l'intérieur du four.It may be advantageous to provide a device for regulating the flow of water which further comprises a pressure equalization pipe, comprising an upstream part in a siphon communicating with the lower zone of the tank, and connected downstream to an outlet pipe. steam from the oven. In this way, the water flow for the production of steam is independent of the pressure prevailing inside the oven.

Selon un mode de réalisation avantageux, le moyen de pulvérisation est un cône percé, monté axialement en bout d'arbre de rotation de la turbine.According to an advantageous embodiment, the spraying means is a drilled cone, mounted axially at the end of the rotation shaft of the turbine.

Par exemple, la turbine comprend un flasque perpendiculaire à son arbre de rotation et portant des ailettes en saillie sur la face antérieure du flasque, le cône de pulvérisation étant fixé au centre de la face antérieure du flasque avec son sommet dirigé vers le flasque, l'orifice de sortie de canalisation d'entrée dirigeant l'eau radialement sur la surface latérale du cône de pulvérisation.For example, the turbine comprises a flange perpendicular to its rotation shaft and carrying fins projecting from the anterior face of the flange, the spray cone being fixed in the center of the anterior face of the flange with its apex directed towards the flange, l '' inlet pipe outlet orifice directing water radially on the lateral surface of the spray cone.

D'autres objets, caractéristiques et avantages de la présente invention ressortiront de la description suivante de modes de réalisation particuliers, faite en relation avec les figures annexées, dans lesquelles :

  • la figure 1 représente, en vue de côté en coupe, un four selon un mode de réalisation particulier de la présente invention ; et
  • la figure 2 illustre les diagrammes temporels de variation de débit et de niveau d'eau dans un dispositif de régulation de débit d'eau du four de la figure 1.
Other objects, characteristics and advantages of the present invention will emerge from the following description of particular embodiments, given in conjunction with the appended figures, in which:
  • Figure 1 shows, in side view in section, an oven according to a particular embodiment of the present invention; and
  • FIG. 2 illustrates the time diagrams of variation of flow rate and of water level in a device for regulating the water flow rate of the oven of FIG. 1.

Dans le mode de réalisation illustré sur la figure 1, le four comprend une enceinte 1 limitée par un moufle 2 dont l'ouverture 3 est obturée par une porte 4.In the embodiment illustrated in FIG. 1, the oven comprises an enclosure 1 limited by a muffle 2, the opening 3 of which is closed by a door 4.

Une turbine de circulation d'air 5 est placée dans l'enceinte 1 au voisinage de la paroi postérieure 6 du moufle 2. La turbine de circulation d'air 5 représentée sur la figure comprend un flasque 7, généralement parallèle à la paroi postérieure 6 et monté en bout d'un arbre de rotation 8 lui-même entraîné en rotation par un moteur électrique 9. Le flasque 7 porte des ailettes 10 en saillie sur la face antérieure 11 du flasque 7.An air circulation turbine 5 is placed in the enclosure 1 in the vicinity of the rear wall 6 of the muffle 2. The air circulation turbine 5 shown in the figure comprises a flange 7, generally parallel to the rear wall 6 and mounted at the end of a rotation shaft 8 itself driven in rotation by an electric motor 9. The flange 7 carries fins 10 projecting from the front face 11 of the flange 7.

Un cône de pulvérisation 12 est fixé au centre de la face antérieure 11 du flasque 7, avec son sommet dirigé vers le flasque 7. Le cône de pulvérisation 12 est percé de trous tels que le trou 13, et est monté axialement en bout de l'arbre de rotation 8 de la turbine 5.A spray cone 12 is fixed to the center of the front face 11 of the flange 7, with its apex directed towards the flange 7. The spray cone 12 is pierced with holes such as hole 13, and is mounted axially at the end of the rotation shaft 8 of the turbine 5.

Une canalisation d'entrée 14 permet de conduire de l'eau depuis une source d'alimentation d'eau 15, telle que le réseau d'alimentation publique en eau potable, jusqu'à un orifice de sortie 16 disposé dans l'enceinte 1 et adapté pour diriger un jet d'eau radialement sur la surface latérale du cône de pulvérisation 12.An inlet pipe 14 makes it possible to conduct water from a water supply source 15, such as the public drinking water supply network, to an outlet orifice 16 disposed in the enclosure 1 and adapted to direct a jet of water radially onto the lateral surface of the spray cone 12.

Le cône de pulvérisation I2 projette l'eau sur les ailettes 10 de la turbine de circulation d'air 5 qui elle-même projette l'eau sur des éléments chauffants 17 tels que des résistances électriques placées en périphérie de la turbine 5, c'est-à-dire en aval de la turbine 5 dans le sens de circulation de l'air.The spray cone I2 projects the water onto the fins 10 of the air circulation turbine 5 which itself projects the water onto heating elements 17 such as electrical resistors placed on the periphery of the turbine 5, c ' that is to say downstream of the turbine 5 in the direction of air circulation.

Dans la canalisation d'entrée 14, l'invention prévoit d'incorporer un dispositif de régulation de débit d'eau 18, produisant un débit d'eau indépendant de la pression d'eau dans la source d'alimentation d'eau 15 à l'entrée de la canalisation d'entrée 14.In the inlet pipe 14, the invention provides for incorporating a water flow control device 18, producing a water flow independent of the water pressure in the water supply source 15 to the inlet of the inlet pipe 14.

Le dispositif de régulation de débit d'eau 18 comprend un réservoir 19 étanche, disposé à un niveau supérieur à celui de l'orifice de sortie 16.The water flow control device 18 comprises a sealed reservoir 19, disposed at a level higher than that of the outlet orifice 16.

Un tronçon amont 20 de canalisation d'entrée 14 est muni d'une électrovanne 21 pilotée par une commande temporisée 22 assurant l'ouverture intermittente de l'électrovanne 21 selon un cycle déterminé. Le tronçon amont 20 de canalisation d'entrée 14 est raccordé en amont à la source d'alimentation d'eau 15, et est raccordé en aval au réservoir étanche 19.An upstream section 20 of inlet pipe 14 is provided with a solenoid valve 21 controlled by a timed control 22 ensuring the intermittent opening of the solenoid valve 21 according to a determined cycle. The upstream section 20 of inlet pipe 14 is connected upstream to the water supply source 15, and is connected downstream to the sealed tank 19.

Un tronçon aval 23 de canalisation d'entrée 14 est adapté pour conduire l'eau depuis le réservoir 19 jusqu'à l'orifice de sortie 16.A downstream section 23 of inlet pipe 14 is adapted to conduct the water from the tank 19 to the outlet orifice 16.

Une canalisation de trop-plein 24 est adaptée pour évacuer l'eau contenue dans le réservoir 19 au-delà d'un niveau maximum déterminé 25. Dans le mode de réalisation représenté, la canalisation de trop-plein 24 conduit l'excès d'eau dans une canalisation d'évacuation d'eau 26 assurant l'évacuation de l'eau de condensation depuis un orifice inférieur 27 ménagé dans la paroi inférieure 28 du moufle 2.An overflow line 24 is adapted to evacuate the water contained in the tank 19 beyond a determined maximum level 25. In the embodiment shown, the overflow line 24 leads the excess of water in a water evacuation pipe 26 ensuring the evacuation of the condensation water from a lower orifice 27 formed in the lower wall 28 of the muffle 2.

La canalisation de trop-plein 24 est descendante depuis le réservoir 19, et son orifice d'entrée est situé au niveau maximum déterminé 25. Par exemple, une portion tubulaire d'entrée de la canalisation de trop-plein 24 pénètre dans le réservoir 19 par un orifice de sa paroi inférieure, jusqu'au niveau 25.The overflow line 24 descends from the tank 19, and its inlet orifice is located at the determined maximum level 25. For example, a tubular inlet portion of the overflow line 24 enters the tank 19 through an opening in its lower wall, up to level 25.

La canalisation d'évacuation d'eau 26 peut, par exemple, conduire l'eau de condensation jusqu'à une boîte de condensation 29 dont la sortie 30 est raccordée aux conduites d'évacuation d'eau usée, de préférence par un siphon.The water evacuation pipe 26 can, for example, conduct the condensation water to a condensation box 29, the outlet 30 of which is connected to the waste water evacuation pipes, preferably by a siphon.

Une canalisation de sortie de vapeur 31 est raccordée à l'enceinte 1 par un orifice supérieur 32 ménagé dans la paroi supérieure 33 du moufle 2. La canalisation de sortie de vapeur 31 est munie d'un catalyseur 34 et sa sortie aval 35 est raccordée à la boîte de condensation 29.A steam outlet pipe 31 is connected to the enclosure 1 by an upper orifice 32 formed in the upper wall 33 of the muffle 2. The steam outlet pipe 31 is provided with a catalyst 34 and its downstream outlet 35 is connected to the condensation box 29.

Une canalisation de mise à l'air libre 36 est raccordée en partie supérieure du réservoir 19.A vent pipe 36 is connected at the top of the tank 19.

La canalisation de mise à l'air libre 36 peut avantageusement comprendre un clapet 136, disposé de façon à permettre la sortie des gaz vers l'atmosphère mais interdisant la sortie d'eau vers l'extérieur du réservoir 19.The vent pipe 36 can advantageously comprise a valve 136, arranged so as to allow the outlet of the gases to the atmosphere but preventing the outlet of water to the outside of the tank 19.

En alternative ou en complément, la canalisation de mise à l'air libre 36 peut comprendre une fuite calibrée, permettant l'ouverture calibrée de la canalisation de mise à l'air libre 36.As an alternative or in addition, the vent pipe 36 may include a calibrated leak, allowing the calibrated opening of the vent pipe 36.

Le tronçon aval 23 de canalisation d'entrée 14 peut avantageusement comprendre un dispositif de calibrage de débit d'eau 37, placé en sortie du réservoir 19.The downstream section 23 of the inlet pipe 14 may advantageously comprise a device for calibrating the water flow 37, placed at the outlet of the tank 19.

Egalement, dans le mode de réalisation représenté sur la figure, le dispositif de régulation de débit d'eau 18 comprend en outre une canalisation d'équilibrage de pression 38, comportant une partie amont 39 en siphon communiquant avec la zone inférieure du réservoir 19, et raccordée en aval à la canalisation de sortie de vapeur 31 du four, de préférence en aval du catalyseur 34.Also, in the embodiment shown in the figure, the water flow regulation device 18 further comprises a pressure equalization pipe 38, comprising an upstream part 39 in a siphon communicating with the lower zone of the tank 19, and connected downstream to the steam outlet pipe 31 of the furnace, preferably downstream of the catalyst 34.

La commande temporisée 22 peut avantageusement être réglée pour assurer l'ouverture intermittente de l'électrovanne 21 selon un cycle assurant une présence continue d'eau dans le réservoir 19, et un écoulement intermittent d'eau dans la canalisation de trop-plein 24. On produit ainsi une projection continue d'eau par l'orifice de sortie 16 sur le cône de projection 12, et une production régulière de vapeur à l'intérieur de l'enceinte 1.The timed control 22 can advantageously be adjusted to ensure the intermittent opening of the solenoid valve 21 according to a cycle ensuring a continuous presence of water in the tank 19, and an intermittent flow of water in the overflow pipe 24. A continuous projection of water is thus produced through the outlet orifice 16 on the projection cone 12, and a regular production of vapor inside the enclosure 1.

La figure 2 illustre le fonctionnement du dispositif de régulation de débit d'eau 18.FIG. 2 illustrates the operation of the water flow regulation device 18.

La courbe a) illustre la variation temporelle du débit d'eau d'alimentation dans le tronçon amont 20 de canalisation d'entrée, avec un débit D constant entre les instants t1 et t2, correspondant à l'état ouvert de l'électrovanne 21, et un débit nul entre les instants t2 et t3 correspondant à l'état fermé de l'électrovanne 21.Curve a) illustrates the temporal variation of the supply water flow rate in the upstream section 20 of the inlet pipe, with a constant flow rate D between the times t1 and t2, corresponding to the open state of the solenoid valve 21 , and a zero flow between times t2 and t3 corresponding to the closed state of the solenoid valve 21.

La courbe b) illustre la variation temporelle du niveau d'eau dans le réservoir 19. Depuis un niveau minimum m non nul à l'instant t1, le niveau croît jusqu'au maximum déterminé 25 atteint à l'instant t4 antérieur à t2, puis reste constant jusqu'à t2 pour diminuer ensuite régulièrement jusqu'au minimum à l'instant t3.Curve b) illustrates the temporal variation of the water level in the reservoir 19. From a minimum level m not zero at time t1, the level increases to the determined maximum 25 reached at time t4 prior to t2, then remains constant until t2 then decreases regularly to the minimum at time t3.

La courbe c) illustre la variation temporelle du débit d'eau dans la canalisation de trop-plein 24. Un débit d'eau est présent entre les instants t4 et t2.Curve c) illustrates the temporal variation of the water flow in the overflow pipe 24. A water flow is present between times t4 and t2.

La courbe d) illustre le débit d'eau constant d dans le tronçon aval 23 de canalisation d'entrée 14.Curve d) illustrates the constant water flow d in the downstream section 23 of inlet pipe 14.

L'homme du métier pourra aisément choisir les durées t2- t1 et t3- t1 pour respecter la présence permanente d'eau dans le réservoir 19 et la production d'un écoulement intermittent dans la canalisation de trop-plein 24. Ces durées seront préréglées en usine. En cas de variation de la pression d'eau dans la source d'alimentation 15, le débit D est modifié. Il en résulte une modification de l'instant t4, et donc une modification de la durée d'écoulement dans la canalisation de trop-plein 24, sans altération du débit d'eau d dans le tronçon aval 23 de canalisation d'entrée 14.Those skilled in the art can easily choose the durations t2- t1 and t3- t1 to respect the permanent presence of water in the tank 19 and the production of an intermittent flow in the overflow pipe 24. These durations will be preset in the factory. In the event of a variation in the water pressure in the supply source 15, the flow rate D is modified. This results in a modification of the instant t4, and therefore a modification of the flow time in the overflow pipe 24, without altering the water flow d in the downstream section 23 of the inlet pipe 14.

La présente invention n'est pas limitée aux modes de réalisation qui ont été explicitement décrits, mais elle en inclut les équivalents, variantes et généralisations qui sont à la portée de l'homme du métier.The present invention is not limited to the embodiments which have been explicitly described, but it includes the equivalents, variants and generalizations which are within the reach of those skilled in the art.

Claims (10)

  1. Convection steam oven, including an enclosure (1), a fan for circulating air (5), heating elements (17) downstream of said fan for circulating air (5), an inlet pipe (14) for conveying water from a water supply (15) to an outlet orifice (16) disposed in said enclosure (1) to direct a jet of water onto spray means (12) which throw said water onto fins (10) of said fan for circulating air (5), characterized in that it further comprises a water flowrate regulator device (18) with a storage tank (19) disposed in said inlet pipe (14) and at a higher level than said outlet orifice (16), for producing a water flowrate independent of the pressure of said water supply (15) at an inlet of said inlet pipe (14).
  2. Oven according to claim 1, characterized in that said water flowrate regulator device (18) includes :
    - an upstream section (20) of said inlet pipe (14), having a solenoid valve (21) controlled by a timer (22) for intermittently opening said solenoid valve (21) in accordance with a particular cycle, connected on its upstream side to said water supply (15), and on its downstream side to said storage tank (19),
    - a downstream section (23) of said inlet pipe (14), adapted to conduct water from said storage tank (19) to said outlet orifice (16),
    - a vent pipe (36), connected to an upper part of said storage tank (19),
    - an overflow pipe (24), adapted to evacuate water contained in said storage tank (19) above a particular maximum level (25).
  3. Oven according to claim 2, characterized in that said overflow pipe (24) conducts excess water into a pipe for evacuating water (26) from said enclosure (1) of said oven.
  4. Oven according to claims 2 or 3, characterized in that said downstream section (23) of said inlet pipe (14) includes a water flowrate calibration device (37) disposed at the outlet of said storage tank (19).
  5. Oven according to any one of claims 2 to 4, characterized in that said water flowrate regulator device (18) further includes a pressure balancing pipe (38), having an upstream part (39) in the form of a siphon communicating with said lower part of said storage tank (19), and connected on its downstream side to a pipe for removing steam (31) from said oven.
  6. Oven according to claim 5, characterized in that said pipe for removing steam (31) from said oven is provided with a catalyzer (34), and said pressure balancing pipe (38) is connected to said pipe for removing steam (31) from said oven downstream of said catalyzer (34).
  7. Oven according to any one of claims 2 to 6, characterized in that said vent pipe (36) includes a valve (136) enabling exit of gas to the atmosphere but preventing exit of water from the storage tank (19).
  8. Oven according to any one of claims 2 to 7, characterized in that said vent pipe (36) includes a calibrated leak.
  9. Oven according to any one of claims 1 to 8, characterized in that said spray means (12) is a pierced cone, mounted axially at the end of a rotation shaft (8) of said turbine (5).
  10. Oven according to claim 9, characterized in that said turbine (5) has a flange (7) perpendicular to its rotation shaft (8) and fins (10) projecting from an anterior face (11) of said flange (7), said spray cone (12) being fixed to the center of said anterior face (11) of said flange (7) with its apex directed towards said flange (7), said outlet orifice (16) of said inlet pipe (14) directing water radially onto a lateral surface of said spray cone (12).
EP97420184A 1996-10-07 1997-10-03 Forced convection steam oven Expired - Lifetime EP0834703B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9612471A FR2754334B1 (en) 1996-10-07 1996-10-07 STEAM OVEN AND FORCED CONVEXION
FR9612471 1996-10-07

Publications (2)

Publication Number Publication Date
EP0834703A1 EP0834703A1 (en) 1998-04-08
EP0834703B1 true EP0834703B1 (en) 2004-03-31

Family

ID=9496608

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97420184A Expired - Lifetime EP0834703B1 (en) 1996-10-07 1997-10-03 Forced convection steam oven

Country Status (5)

Country Link
US (1) US5768982A (en)
EP (1) EP0834703B1 (en)
AT (1) ATE263342T1 (en)
DE (1) DE69728342T2 (en)
FR (1) FR2754334B1 (en)

Families Citing this family (50)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2775760B1 (en) * 1998-03-09 2000-05-05 Bourgeois Prod Coop STEAM OVEN WITH FIXED SPRAY OF SPRAY WATER
DE29814715U1 (en) * 1998-08-17 1999-02-18 Kulbach, Egon, 65549 Limburg Combined hot air steam cooker
US6188045B1 (en) 2000-04-03 2001-02-13 Alto-Shaam, Inc. Combination oven with three-stage water atomizer
DE10017966C2 (en) * 2000-04-12 2003-12-04 Rational Ag Device and method for cleaning a cooking appliance interior
JP3701839B2 (en) * 2000-04-20 2005-10-05 株式会社フジマック Forced convection oven drain structure
DE10043771C2 (en) * 2000-07-03 2003-07-17 Rational Ag Cooking appliance with water volume registration
DE10051153B4 (en) * 2000-10-16 2004-08-26 Accuride International Gmbh Food support system for an oven
DE60100842T2 (en) * 2001-02-28 2004-07-08 Angelo Po Grandi Cucine S.P.A., Carpi Oven muffle with dehumidifier in a food oven.
WO2003023285A2 (en) * 2001-09-07 2003-03-20 Alto-Shaam, Inc. Humidity control system for combination oven
DE10158425C1 (en) * 2001-11-29 2003-09-11 Neubauer Kurt Maschf Cooking appliance with fan and water supply
US7487716B2 (en) * 2002-02-19 2009-02-10 Alto-Shaam, Inc. Rotisserie oven
US7192272B2 (en) * 2002-03-27 2007-03-20 The Garland Group Convection oven with laminar airflow and method
FR2839546B1 (en) * 2002-05-07 2006-09-22 Premark Feg Llc OVEN FOR COOKING FOOD
FR2849165B1 (en) * 2002-12-23 2005-03-04 Premark Feg Llc OVEN FOR COOKING FOOD
FR2849169B1 (en) * 2002-12-23 2005-03-04 Premark Feg Llc OVEN FOR COOKING FOOD
FR2849164B1 (en) * 2002-12-23 2005-10-21 Premark Feg Llc OVEN FOR COOKING FOOD
FR2849162A1 (en) * 2002-12-23 2004-06-25 Premark Feg Llc Oven for cooking food, has vane connected to rotation axis such that air coming from air inlet penetrates directly inside circular trajectory of vane before being expelled into rest of chamber space
WO2004057240A2 (en) * 2002-12-23 2004-07-08 Premark Feg L.L.C. An oven for cooking food
FR2849163B1 (en) * 2002-12-23 2005-10-21 Premark Feg Llc OVEN FOR COOKING FOOD
JP3714339B2 (en) * 2003-05-20 2005-11-09 松下電器産業株式会社 High-frequency heating device with steam generation function
US20040187700A1 (en) * 2003-06-09 2004-09-30 Tippmann Robert T. Method and apparatus for accelerating steam in a steam oven
JP3763833B2 (en) * 2003-07-31 2006-04-05 シャープ株式会社 Steam cooker
EP1669676B1 (en) * 2003-08-04 2017-03-22 Fujimak Corporation Steam oven
CA2478381C (en) * 2003-08-20 2013-02-19 Ssw Holding Company, Inc. Handle rack
US20060185661A1 (en) 2005-02-23 2006-08-24 Timothy Metcalf Slide rack
KR101132331B1 (en) * 2004-07-14 2012-04-05 삼성전자주식회사 Heating cooker and control method thereof
KR20060006472A (en) * 2004-07-16 2006-01-19 삼성전자주식회사 Heating cooker
US20060112947A1 (en) * 2004-11-29 2006-06-01 Atul Saksena Steam cooker with moving steam delivery member
EP1684018A1 (en) * 2004-12-30 2006-07-26 Filippi S.r.l. Steam oven with accessible filter for limestone and tank for water charging with leakproof draft
US7060941B1 (en) 2005-04-20 2006-06-13 Whirlpool Corporation Method for baking a dessert using steam
US20060251785A1 (en) 2005-05-06 2006-11-09 Stefania Fraccon Method for cooking food using steam
US7745763B2 (en) * 2005-07-11 2010-06-29 Whirlpool Corporation Method for baking bread using steam
US20090095279A1 (en) * 2005-11-30 2009-04-16 Ssw Holding Company Inc. Full and Partial Oven Rack Assembly
US20070175884A1 (en) * 2006-01-31 2007-08-02 Atul Saksena Steam cooker with steam delivery device
US7867534B2 (en) * 2006-10-18 2011-01-11 Whirlpool Corporation Cooking appliance with steam generator
ITMO20060354A1 (en) * 2006-11-03 2008-05-04 Angelo Grandi Cucine Spa COOKING SYSTEM
US20080223357A1 (en) * 2007-03-08 2008-09-18 Janus Bartelick Self-cleaning cooking appliance
US20090136640A1 (en) * 2007-11-26 2009-05-28 Whirlpool Corporation Method for Baking a Casserole Using Steam
US8207477B2 (en) * 2007-11-26 2012-06-26 Whirlpool Corporation Method for cooking vegetables using steam
CA2709459A1 (en) * 2008-01-09 2009-07-16 Unified Brands, Inc. Boilerless combination convection steamer oven
AU2016204889B2 (en) * 2008-01-28 2017-11-16 Duke Manufacturing Co. Convection oven
WO2009097340A2 (en) 2008-01-28 2009-08-06 Duke Manufacturing Co. Convection oven
US9066523B2 (en) * 2009-01-19 2015-06-30 Accutemp Products, Inc. Method and apparatus for directing steam distribution in a steam cooker
ES2656147T3 (en) * 2009-09-11 2018-02-23 Enodis Corporation Impact microwave oven with steam assistance
IT1396249B1 (en) * 2009-10-13 2012-11-16 Giorik Spa COMBINED PROCEDURE FOR STEAM PRODUCTION IN A STEAMED OVEN FOR FOOD AND A COOKING OVEN THAT MAKES THIS PROCEDURE.
US8783243B2 (en) 2010-10-25 2014-07-22 General Electric Company Lockout system for surface burners of a cooking appliance
CN102389258B (en) * 2011-10-28 2013-12-18 九阳股份有限公司 Control method of generating overheat steam by electric steaming furnace
ITPD20130283A1 (en) * 2013-10-16 2015-04-17 Piron S R L WATER NEBULIZER DEVICE, PARTICULARLY FOR COOKING OVENS FOR TYPICAL FOODS WITH FORCED AIR RECIRCULATION, AND COOKING OVEN FOR FOOD WITH A SIMILAR NEBULIZER
FR3016812B1 (en) * 2014-01-29 2020-10-23 Steriflow ARTICLE HEAT TREATMENT SYSTEM
KR102226003B1 (en) * 2014-09-02 2021-03-10 삼성전자주식회사 Cooking appliance

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR383366A (en) * 1906-11-06 1908-03-06 Sebastian Ziani De Ferranti Improvements to spinning, twisting and doubling machines
US3744474A (en) * 1971-03-01 1973-07-10 Beatrice Foods Co Steam cooking apparatus and method
US4058635A (en) * 1972-07-12 1977-11-15 Buderus'sche Eisenwerke Aktiengesellschaft Method of treating a foodstuff in an oven with moisture
US3949733A (en) * 1975-02-14 1976-04-13 A. J. Antunes & Co. Steam heating apparatus
DE2747097A1 (en) * 1977-10-20 1979-05-03 Buderus Ag Food heating compartment with fan circulating hot air - has water pipe with nozzle spraying water into hot air current and nozzle in front of suction area
US4173215A (en) * 1977-12-05 1979-11-06 Mscan Metal Canada Limitee Apparatus for steaming foods
US4701340A (en) * 1985-12-09 1987-10-20 Lincoln Foodservice Products, Inc. Impingement and steam oven apparatus for preparing food products
DE8604451U1 (en) * 1986-02-19 1986-04-30 Eloma GmbH Bedarfsartikel zur Gemeinschaftsverpflegung, 8031 Gernlinden Device for cooking food
US4700685A (en) * 1986-05-09 1987-10-20 Lincoln Foodservice Products, Inc. Combination convection and steamer oven
US4924072A (en) * 1987-05-14 1990-05-08 Delaware Capital Formation, Inc. Humidity control for oven chamber
US4851644A (en) * 1987-05-14 1989-07-25 Delaware Capital Formation, Inc. Electric combination oven
WO1989011332A1 (en) * 1988-05-18 1989-11-30 Mamoru Houkuwa Structure of double steam oven
DE3909283C2 (en) * 1989-03-21 1994-09-29 Eloma Gmbh Steamer
FR2660733A1 (en) * 1990-04-04 1991-10-11 Bourgeois Ste Coop Production WATER VAPOR GENERATOR FOR COOKING APPLIANCE PROVIDED WITH A DRAINING DEVICE.
DE4013594C2 (en) * 1990-04-27 1994-10-20 Eloma Gmbh Steam cooking device
IT1253692B (en) * 1991-07-17 1995-08-22 Zanussi Grandi Impianti Spa STEAM GENERATION DEVICE FOR FOOD COOKING EQUIPMENT, SUCH AS COOKING OVENS OR SIMILAR.
DE4131748C2 (en) * 1991-09-24 1997-12-18 Kueppersbusch Hot convection oven for cooking food
US5530223A (en) * 1993-08-05 1996-06-25 Angelo Po Grandi Cucine S.P.A. Convection and steam oven with a pre-atomizer
FR2711229B1 (en) * 1993-10-12 1995-12-08 Bourgeois Ste Coop Prod Steam oven fitted with a steam evacuation device.
US5515773A (en) * 1995-02-16 1996-05-14 The Rival Company Steam oven

Also Published As

Publication number Publication date
US5768982A (en) 1998-06-23
EP0834703A1 (en) 1998-04-08
DE69728342T2 (en) 2004-12-30
FR2754334A1 (en) 1998-04-10
ATE263342T1 (en) 2004-04-15
FR2754334B1 (en) 1998-12-18
DE69728342D1 (en) 2004-05-06

Similar Documents

Publication Publication Date Title
EP0834703B1 (en) Forced convection steam oven
CA2265229C (en) Steam-tube oven including a fixed distribution system for water to be converted into steam
CA2133701C (en) Furnace equipped with excess steam processing device
EP0095397B1 (en) System for preventing liquids from being driven to the flare stack tip
EP0759320A1 (en) Apparatus for separating gas by adsorption
FR2483580A1 (en) WATER HEATER
BE898425A (en) Vortex device for separating and eliminating a gas from a liquid, and installation comprising the application.
CA2297282C (en) Device for producing hot water
EP1884164B1 (en) Device for the fog treatment of a liquid composition for the treatment of fruits or vegetables and corresponding use
EP1867928B1 (en) Steam cooking oven
FR2902501A1 (en) COOKING OVEN WITH STEAM
EP0118363B1 (en) Installation of and method for heating by means of immersed firing
FR2643444A2 (en) INTERNAL AIR CONDITIONING DEVICE
EP3890564B1 (en) Steam cooker accessory with double turbo crown
EP3912519B1 (en) Cooking chamber with steam injection
EP1772669A2 (en) Steam heating and production device for an oven
FR2976455A1 (en) Cooking oven for generation of steam for food, has outside air drain pipe whose downstream end is arranged between inlet manifold and open vent so as to bring outside air between inlet manifold and vent
FR2849163A1 (en) Oven for cooking food, has water column containing determined water volume that is constantly maintained between maximum level related to overflow at upper outlet, and lower outlet through which water flows into column
EP2479500A1 (en) Heating device with a means for producing steam
FR2849164A1 (en) Oven for cooking food, has water supply directing water from chambers outside to vicinity of diffuser disc inside chamber for allowing water to fall on disc and to get vaporized by heat produced by gas burner inside chamber
FR3089401A1 (en) STEAM COOKER ACCESSORY WITH DEPORTED STEAM CONDUIT
FR2542064A1 (en) WATER SEPARATOR COMPOUND OF PACKAGES OF SHEETS FOR DRYING WET WATER VAPOR WITH CONSECUTIVE SUPERVISION OF DRY STEAM
FR2573522A1 (en) METHOD AND INSTALLATION OF SELF-DESCALING.
FR2849169A1 (en) Oven for cooking/baking foods, has admission pipe that comes out of regulation chamber and heating device, when pipe is in high extremity, and is sealed by liquid in chamber during its high level, when pipe is in low extremity
BE842512A (en) IMPROVEMENTS IN GAS SEPARATION FROM GAS-LIQUID MIXTURES

Legal Events

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

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE ES GB IT LI LU NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;RO;SI

17P Request for examination filed

Effective date: 19980813

AKX Designation fees paid

Free format text: AT BE CH DE ES GB IT LI LU NL PT SE

RBV Designated contracting states (corrected)

Designated state(s): AT BE CH DE ES GB IT LI LU NL PT SE

17Q First examination report despatched

Effective date: 20010129

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

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: SOCIETE COOPERATIVE DE PRODUCTION BOURGEOIS

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE ES GB IT LI LU NL PT SE

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

Ref country code: NL

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: 20040331

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: 20040331

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

Ref country code: CH

Ref legal event code: EP

REF Corresponds to:

Ref document number: 69728342

Country of ref document: DE

Date of ref document: 20040506

Kind code of ref document: P

REG Reference to a national code

Ref country code: CH

Ref legal event code: PFA

Owner name: SOCIETE COOPERATIVE DE PRODUCTION BOURGEOIS

Free format text: SOCIETE COOPERATIVE DE PRODUCTION BOURGEOIS#364 RUE DES EPINETTES#74210 FAVERGES (FR) -TRANSFER TO- SOCIETE COOPERATIVE DE PRODUCTION BOURGEOIS#637, ROUTE DE FRANS#69400 VILLEFRANCHE SUR SAOENE (FR)

Ref country code: CH

Ref legal event code: NV

Representative=s name: ZIMMERLI, WAGNER & PARTNER AG

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 FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20040712

REG Reference to a national code

Ref country code: SE

Ref legal event code: TRGR

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20040818

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
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: 20041003

RAP2 Party data changed (patent owner data changed or rights of a patent transferred)

Owner name: SOCIETE COOPERATIVE DE PRODUCTION BOURGEOIS

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

Ref country code: BE

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

Effective date: 20041031

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: 20050104

BERE Be: lapsed

Owner name: SOC. COOPERATIVE DE PRODUCTION *BOURGEOIS

Effective date: 20041031

BERE Be: lapsed

Owner name: SOC. COOPERATIVE DE PRODUCTION *BOURGEOIS

Effective date: 20041031

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

Ref country code: PT

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

Effective date: 20040831

REG Reference to a national code

Ref country code: CH

Ref legal event code: PFA

Owner name: SOCIETE COOPERATIVE DE PRODUCTION BOURGEOIS

Free format text: SOCIETE COOPERATIVE DE PRODUCTION BOURGEOIS#637, ROUTE DE FRANS#69400 VILLEFRANCHE SUR SAONE (FR) -TRANSFER TO- SOCIETE COOPERATIVE DE PRODUCTION BOURGEOIS#637, ROUTE DE FRANS#69400 VILLEFRANCHE SUR SAONE (FR)

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

Ref country code: CH

Payment date: 20121023

Year of fee payment: 16

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

Ref country code: GB

Payment date: 20121030

Year of fee payment: 16

Ref country code: SE

Payment date: 20121024

Year of fee payment: 16

Ref country code: IT

Payment date: 20121029

Year of fee payment: 16

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

Ref country code: DE

Payment date: 20121227

Year of fee payment: 16

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: WAGNER PATENT AG, CH

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: SE

Ref legal event code: EUG

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

Effective date: 20131003

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 69728342

Country of ref document: DE

Effective date: 20140501

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

Ref country code: LI

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

Effective date: 20131031

Ref country code: CH

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

Effective date: 20131031

Ref country code: GB

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

Effective date: 20131003

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: 20140501

Ref country code: IT

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

Effective date: 20131003

Ref country code: SE

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

Effective date: 20131004