WO2001043610A1 - Infusion assembly for an espresso-type coffee machine - Google Patents

Infusion assembly for an espresso-type coffee machine Download PDF

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Publication number
WO2001043610A1
WO2001043610A1 PCT/FR2000/003519 FR0003519W WO0143610A1 WO 2001043610 A1 WO2001043610 A1 WO 2001043610A1 FR 0003519 W FR0003519 W FR 0003519W WO 0143610 A1 WO0143610 A1 WO 0143610A1
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WO
WIPO (PCT)
Prior art keywords
chamber
infusion
filter plate
brewing
section
Prior art date
Application number
PCT/FR2000/003519
Other languages
French (fr)
Inventor
Gilles Morin
Original Assignee
Moulinex S.A.
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 Moulinex S.A. filed Critical Moulinex S.A.
Publication of WO2001043610A1 publication Critical patent/WO2001043610A1/en

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J31/00—Apparatus for making beverages
    • A47J31/24—Coffee-making apparatus in which hot water is passed through the filter under pressure, i.e. in which the coffee grounds are extracted under pressure
    • A47J31/34—Coffee-making apparatus in which hot water is passed through the filter under pressure, i.e. in which the coffee grounds are extracted under pressure with hot water under liquid pressure
    • A47J31/36—Coffee-making apparatus in which hot water is passed through the filter under pressure, i.e. in which the coffee grounds are extracted under pressure with hot water under liquid pressure with mechanical pressure-producing means
    • A47J31/3604—Coffee-making apparatus in which hot water is passed through the filter under pressure, i.e. in which the coffee grounds are extracted under pressure with hot water under liquid pressure with mechanical pressure-producing means with a mechanism arranged to move the brewing chamber between loading, infusing and ejecting stations
    • A47J31/3609—Loose coffee being employed
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J31/00—Apparatus for making beverages
    • A47J31/44—Parts or details or accessories of beverage-making apparatus
    • A47J31/60—Cleaning devices

Definitions

  • the present invention relates to an infusion group for a coffee machine of the espresso type comprising a body enclosing a cylindrical brewing chamber having a bottom and an outlet and comprising a filter plate mounted movably in said chamber between a position of infusion and an ejection position, a pressure piston mounted movable by means of a mechanism and able to occupy at least two positions, either a tamping position for which it enters said infusion chamber, or a withdrawal position for which it is located above the outlet, a device for circulating hot water creating in said chamber an infusion current, as well as a circuit for purging at least of the chamber comprising a section, the inlet of which is arranged in the bottom of the chamore under the fliter tray.
  • the present invention provides that the filter plate, in the brewing position, is located a short distance from the bottom of the brewing chamber, thus leaving a space between the inlet of the purge section and the plate. -filtered.
  • the filter plate in the brewing position, is located a short distance from the bottom of the brewing chamber, thus leaving a space between the inlet of the purge section and the plate. -filtered.
  • FIG. 1 is a vertical section of an infusion group according to the invention
  • FIG. 2 is an enlarged view of part of the brew group according to FIG. 1.
  • the brew group is intended to equip a coffee machine of the espresso type comprising a body 1 made of metal and enclosing an infusion chamber 2 of cylindrical shape pre- sensing a bottom 3, a side wall 4 and an outlet 5 and comprising a filter plate 6 movably mounted in said chamber between an infusion position corresponding to the position illustrated in the single figure in which it is located in the bottom of the chamber 2 and an ejection position (not illustrated) into which it is brought, by an ejection mechanism referenced as a whole by the reference 7, slightly above the outlet 5 so as to allow the ejection of a ground coffee by an ejector 8.
  • a coffee machine of the espresso type comprising a body 1 made of metal and enclosing an infusion chamber 2 of cylindrical shape pre- sensing a bottom 3, a side wall 4 and an outlet 5 and comprising a filter plate 6 movably mounted in said chamber between an infusion position corresponding to the position illustrated in the single figure in which it is located in the bottom of the chamber 2 and an ejection position
  • the brewing group also includes a pressing piston 9 mounted movable by means of a hydraulic jack mechanism 10 of the type described for example in PCT patent application WO 99/12456, and thus being able to occupy at least two positions, namely a posit> compaction ion of the ground coffee introduced (not shown) for which it enters said infusion chamber, silk a withdrawal position (illustrated in the figure) for which it is located above the outlet 5.
  • a pressing piston 9 mounted movable by means of a hydraulic jack mechanism 10 of the type described for example in PCT patent application WO 99/12456, and thus being able to occupy at least two positions, namely a posit> compaction ion of the ground coffee introduced (not shown) for which it enters said infusion chamber, silk a withdrawal position (illustrated in the figure) for which it is located above the outlet 5.
  • the brew group includes a device for circulating hot water, part of which is formed by a helical tubular section 11, the path of which is shown diagrammatically by a solid line 11 ′ and which is integrated into the body 1 and opens into the bottom 3 from the chamber to create an infusion current which, in this embodiment, is ascending and is led through the pressing piston towards an infusion dispenser.
  • the body 1 incorporates a heating resistor R extending along a helical path materialized by a continuous line R '.
  • the brew group is also provided with a purge circuit of at least the brewing chamber.
  • a purge circuit of at least the brewing chamber.
  • said purge circuit is constituted by the same tubular section. 11 of the hot water circulation device. This section 11 has an inlet 12 which is arranged for this purpose in the bottom 3 of the brewing chamber 2 under the filter plate 6.
  • the tubular section 11 common to the water circulation device and to the purge circuit is connected in a manner known per se to a three-way distributor (not shown) leading either to a water circulation pump, or to the setting in open air for purging.
  • the filter plate 6, in the infusion position is located a short distance from the bottom 3 of the infusion chamber 2 thus providing a space 13 between the inlet 12 of the purge duct and the filter plate.
  • the filter plate 6 is equipped with a rod 14 slidingly mounted in a bore 15 passing through the body 1 and the bottom 3 of the brewing chamber and comprises a face lower 16 facing the bottom 3 and in which is formed an annular recess 17 s Opening dan space and whose bottom 18 has a region located opposite the inlet 12 of the purge conduit.
  • the tests carried out with an infusion group according to the invention show that the distance between the bottom 18 of the recess and the bottom 3 of the infusion chamber is in the range of 0.7 to 1 millimeter.
  • the filter plate 6 is formed by a disc whose peripheral edge 20 is adjacent to the side wall 4 of the brewing chamber 2 and whose lower 16 and upper 21 faces 21 respectively comprise 1 recess 17 and a filter 22.
  • the two said faces respectively comprise the outlets of a plurality of holes 23 passing through the disc and the recess 17 extends from these outlets to the peripheral edge 20 of the disc.
  • the recess 17 also has the function of collecting the milling residues adhering to the side wall 4 and scraped by the edge 20 of the disc, and bringing them back into the circuit. purge.

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Apparatus For Making Beverages (AREA)

Abstract

The invention relates to an infusion assembly for an espresso-type coffee machine, comprising a body (1) which houses an infusion chamber (2) and which has a bottom (3); and a filter plate (6) which is displaceably mounted in the chamber between an infusion position and an ejection position. The assembly also comprises a displaceably mounted pressure piston (9) and a purging circuit at least for the chamber, comprising a section (11) whose entrance (12) is arranged in the bottom (3) of the chamber (2), beneath the filter plate (6). According to the invention, said filter plate (6) is situated a short distance away from the bottom (3) of the infusion chamber in the infusion position, hereby creating a space between the entrance (12) to the purging section and the filter plate (6).

Description

GROUPE D'INFUSION POUR MACHINE A CAFE DU TYPE ESPRESSO BREW GROUP FOR ESPRESSO COFFEE MACHINE
La présente invention se rapporte à un groupe d'infusion pour machine à café du type espresso comportant un corps renfermant une chambre d'infusion cylindrique présentant un fond et un débouché et comprenant un plateau- filtre monté mobile dans ladite chambre entre une position d'infusion et une position d'éjection, un piston presseur monté mobile au moyen d'un mécanisme et pouvant occuper au moins deux positions, soit une position de tassage pour laquelle il pénètre dans ladite chambre d' infusion, soit une position de retrait pour laquelle il est situé au-dessus du débouché, un dispositif de circulation d'eau chaude créant dans ladite chambre un courant d'infusion, ainsi qu'un circuit de purge d'au-moms de la chambre comprenant un tronçon dont 1 ' entrée est agencée dans le fond de la chamore sous le plateau- flitre .The present invention relates to an infusion group for a coffee machine of the espresso type comprising a body enclosing a cylindrical brewing chamber having a bottom and an outlet and comprising a filter plate mounted movably in said chamber between a position of infusion and an ejection position, a pressure piston mounted movable by means of a mechanism and able to occupy at least two positions, either a tamping position for which it enters said infusion chamber, or a withdrawal position for which it is located above the outlet, a device for circulating hot water creating in said chamber an infusion current, as well as a circuit for purging at least of the chamber comprising a section, the inlet of which is arranged in the bottom of the chamore under the fliter tray.
Un tel groupe a, par exemple, été décrit dans le demande de brevet PCT WO 99/12456. Pour réaliser un cycle d' infusion avec ce type de groupe, on introduit une dose de café moulu dans la chambre d'infusion qui vient reposer sur le plateau-filtre situé dans le fond de la dite chambre en sa position d'infusion, puis le piston presseur vient tasser forte- ment cette poudre dans la chambre contre le plateau- filtre. Ensuite, on amène sous forte pression l'eau chaude dans ladite chambre pour créer un courant d'infusion au travers de la masse de café moulu jusqu'à sa sortie de la chambre vers une buse de distribution de café. Une fois 1 ' infusion terminée, le circuit de purge est activé drainant ainsi l'eau résiduelle stagnant au moins dans le fond de la chambre, puis le plateau- filtre est amené en sa position de retrait où la galette de mouture est éjectée.Such a group has, for example, been described in PCT patent application WO 99/12456. To carry out an infusion cycle with this type of group, a dose of ground coffee is introduced into the infusion chamber which comes to rest on the filter plate located at the bottom of said chamber in its infusion position, then the pressing piston strongly compacts this powder in the chamber against the filter plate. Then, hot water is brought under high pressure into said chamber to create an infusion current through the mass of ground coffee until it leaves the chamber towards a coffee dispensing nozzle. Once the infusion is finished, the purge circuit is activated, thus draining the residual water stagnating at least in the bottom of the chamber, then the filter tray is brought into its withdrawn position where the ground coffee is ejected.
Après plusieurs cycles d'infusion, on constate une accumulation de grains de mouture et particules de tartre dans le fond de la chambre qui sont compactés à chaque cycle par le plateau-filtre et qui, non seulement, contribuent à un encrassement rapide du plateau-filtre, mais aussi constituent un foyer de bactéries.After several infusion cycles, there is an accumulation of grind grains and tartar particles in the bottom of the chamber which are compacted at each cycle by the filter plate and which not only contribute to rapid fouling of the plate- filter, but also constitute a hotbed of bacteria.
Pour remédier à ces inconvénients, la présente invention prévoit que le plateau-filtre, en position d'infusion, est situé à faible distance du fond de la chambre d'infusion ménageant ainsi un espace entre l'entrée du tronçon de purge et le plateau-filtre. Ainsi, on comprendra que grâce à cette espace défini de construction, les différentes particules de mouture et de tartre ne sont plus prisonnières et sont évacuées facilement par le circuit de purge. L'objectif de nettoyage du fond de la chambre et du plateau- filtre est donc atteint par un moyen simple et économique.To overcome these drawbacks, the present invention provides that the filter plate, in the brewing position, is located a short distance from the bottom of the brewing chamber, thus leaving a space between the inlet of the purge section and the plate. -filtered. Thus, it will be understood that thanks to this defined construction space, the different particles of grind and tartar are no longer trapped and are easily removed by the purge circuit. The objective of cleaning the bottom of the chamber and the filter plate is therefore achieved by a simple and economical means.
Les caractéristiques et avantages de l'invention ressortiront de la description qui va suivre, prise à titre d'exemple non limitatif, en référence aux dessins an- nexés dans lesquels : la figure 1 est une coupe verticale d'un groupe d'infusion selon l'invention ; la figure 2 est une vue à échelle agrandie d'une partie du groupe d'infusion selon la figure 1.The characteristics and advantages of the invention will emerge from the description which follows, taken by way of nonlimiting example, with reference to the appended drawings in which: FIG. 1 is a vertical section of an infusion group according to the invention; FIG. 2 is an enlarged view of part of the brew group according to FIG. 1.
Comme représenté à la figure 1, le groupe d'infusion est destiné à équiper une machine à café du type es- presso comportant un corps 1 réalisé en métal et renfermant une chambre d'infusion 2 de forme cylindrique pré- sentant un fond 3 , une paroi latérale 4 et un débouché 5 et comprenant un plateau-filtre 6 monté mobile dans ladite chambre entre une position d' infusion correspondant à la position illustrée sur la figure unique en laquelle il est situé dans le fond de la chambre 2 et une position d'éjection (non illustrée) en laquelle il est amené, par un mécanisme d'éjection référencé dans son ensemble par la référence 7, légèrement au-dessus du débouché 5 de manière à permettre l'éjection d'une galette de mouture par un éjecteur 8.As shown in Figure 1, the brew group is intended to equip a coffee machine of the espresso type comprising a body 1 made of metal and enclosing an infusion chamber 2 of cylindrical shape pre- sensing a bottom 3, a side wall 4 and an outlet 5 and comprising a filter plate 6 movably mounted in said chamber between an infusion position corresponding to the position illustrated in the single figure in which it is located in the bottom of the chamber 2 and an ejection position (not illustrated) into which it is brought, by an ejection mechanism referenced as a whole by the reference 7, slightly above the outlet 5 so as to allow the ejection of a ground coffee by an ejector 8.
Le groupe d' infusion comporte également un piston presseur 9 monté mobile au moyen d'un mécanisme à vérin hydraulique 10 du type décrit par exemple dans la demande de brevet PCT WO 99/12456, et pouvant ainsi occuper au moins deux positions, soit une posit >ion de tassage de la mouture introduite (non illustrée) pour laquelle il pénètre dans ladite chambre d' infusion, soie une position de retrait (illustrée sur la figure) pour laquelle il est situé au-dessus du débouché 5. En outre, le groupe d'infusion comprend un dispositif de circulation d'eau chaude dont une partie est formée par un tronçon tubulaire hélicoïdal 11 dont le trajet est schématisé par un trait continu 11 ' et qui est intégré dans le corps 1 et débouche dans le fond 3 de la chambre pour créer un courant d'infusion qui, dans cet exemple de réalisation, est ascendant et est conduit à travers le piston presseur vers un distributeur d'infusion.The brewing group also includes a pressing piston 9 mounted movable by means of a hydraulic jack mechanism 10 of the type described for example in PCT patent application WO 99/12456, and thus being able to occupy at least two positions, namely a posit> compaction ion of the ground coffee introduced (not shown) for which it enters said infusion chamber, silk a withdrawal position (illustrated in the figure) for which it is located above the outlet 5. In addition, the brew group includes a device for circulating hot water, part of which is formed by a helical tubular section 11, the path of which is shown diagrammatically by a solid line 11 ′ and which is integrated into the body 1 and opens into the bottom 3 from the chamber to create an infusion current which, in this embodiment, is ascending and is led through the pressing piston towards an infusion dispenser.
De plus, le corps 1 intègre une résistance de chauffage R s ' étendant selon un chemin hélicoïdal matérialisé par un trait continu R ' .In addition, the body 1 incorporates a heating resistor R extending along a helical path materialized by a continuous line R '.
Le groupe d'infusion est également pourvu d'un circuit de purge d'au moins de la chambre d' infusion. Afin d'obtenir une purge non seulement de la chambre d' infusion, mais aussi du tronçon de circulation d'eau intégré au corps et pour des raisons de fabrication, l'invention prévoit que ledit circuit de purge soit constitué par le même tronçon tubulaire 11 du dispositif de circulation d'eau chaude. Ce tronçon 11 comporte une entrée 12 qui est agencée à cet effet dans le fond 3 de la chambre d'infusion 2 sous le plateau-filtre 6.The brew group is also provided with a purge circuit of at least the brewing chamber. In order to obtain a purge not only of the infusion chamber, but also of the water circulation section integrated into the body and for manufacturing reasons, the invention provides that said purge circuit is constituted by the same tubular section. 11 of the hot water circulation device. This section 11 has an inlet 12 which is arranged for this purpose in the bottom 3 of the brewing chamber 2 under the filter plate 6.
Le tronçon tubulaire 11 commun au dispositif de circulation d'eau et au circuit de purge est raccordé de façon connue en soi à un distributeur à trois voies (non représenté) conduisant soit à une pompe de circulation d'eau, soit à la mise à l'air libre pour la purge.The tubular section 11 common to the water circulation device and to the purge circuit is connected in a manner known per se to a three-way distributor (not shown) leading either to a water circulation pump, or to the setting in open air for purging.
Selon une caractéristique essentielle de 1 ' înven- tion, le plateau-filtre 6, en posit >ion d' infusion, est situé à faible distance du fond 3 de la chambre d'infusion 2 ménageant ainsi un espace 13 entre l'entrée 12 du conduit de purge et le plateau-filtre.According to an essential characteristic of the invention, the filter plate 6, in the infusion position, is located a short distance from the bottom 3 of the infusion chamber 2 thus providing a space 13 between the inlet 12 of the purge duct and the filter plate.
Dans l'exemple de réalisation illustré, notamment à la figure 2, le plateau-filtre 6 est équipé d'une tige 14 montée coulissante dans un alëage 15 traversant le corps 1 et le fond 3 de la chambre d'infusion et comprend une face inférieure 16 tournée vers le fond 3 et dans laquelle est ménagée un évidement annulaire 17 s Ouvrant dan l'espace et dont le fond 18 présente une région située en regard de l'entrée 12 du conduit de purge.In the exemplary embodiment illustrated, in particular in FIG. 2, the filter plate 6 is equipped with a rod 14 slidingly mounted in a bore 15 passing through the body 1 and the bottom 3 of the brewing chamber and comprises a face lower 16 facing the bottom 3 and in which is formed an annular recess 17 s Opening dan space and whose bottom 18 has a region located opposite the inlet 12 of the purge conduit.
Les essais réalisés avec un groupe d' infusion selon l'invention montrent que la distance entre le fond 18 de 1 ' évidement et le fond 3 de la chambre d' infusion se si- tue dans la plage de 0.7 à 1 millimètre.The tests carried out with an infusion group according to the invention show that the distance between the bottom 18 of the recess and the bottom 3 of the infusion chamber is in the range of 0.7 to 1 millimeter.
Grâce à ce faible espace ménagé entre le plateau- filtre et le fond 3 de la chambre, la mouture ne se trouve plus prisonnière et s ' évacue tout naturellement par le tronçon tubulaire 11 formant le circuit de purge.Thanks to this small space formed between the filter plate and the bottom 3 of the chamber, the ground coffee is no longer trapped and is evacuated quite naturally by the tubular section 11 forming the purge circuit.
La réaspiration des résidus de la chambre permet donc de réaliser une chambre d'infusion qui ne s'encrasse pratiquement plus sur une longue durée ; par exemple 1 500 cy- clés d'infusion ont pu être obtenus avant une intervention volontaire de nettoyage.The rebreathing of residues from the chamber therefore makes it possible to produce an infusion chamber which practically does not clog up over a long period; for example 1,500 brewing cycles were obtained before a voluntary cleaning intervention.
Selon une autre caractéristique de l'invention, le plateau-filtre 6 est formé par un disque dont le bord périphérique 20 est adjacent à la paroi latérale 4 de la chambre d'infusion 2 et dont les faces inférieure 16 et supérieure 21 comprennent respectivement 1 ' évidement 17 et un filtre 22. Les deux dites faces comportent respectivement les débouchés d'une pluralité de trous 23 traversant le disque et 1 ' évidement 17 s'étend depuis ces débouchés jusqu'au bord périphérique 20 du disque.According to another characteristic of the invention, the filter plate 6 is formed by a disc whose peripheral edge 20 is adjacent to the side wall 4 of the brewing chamber 2 and whose lower 16 and upper 21 faces 21 respectively comprise 1 recess 17 and a filter 22. The two said faces respectively comprise the outlets of a plurality of holes 23 passing through the disc and the recess 17 extends from these outlets to the peripheral edge 20 of the disc.
Ainsi, lors du déplacement du plateau-filtre 6 dans la chambre 2 1 ' évidement 17 a pour fonction également de collecter les résidus de mouture adhérant à la paroi latérale 4 et raclés par le bord 20 du disque, et de les ramener dans le circuit de purge. Thus, during the movement of the filter plate 6 in the chamber 2, the recess 17 also has the function of collecting the milling residues adhering to the side wall 4 and scraped by the edge 20 of the disc, and bringing them back into the circuit. purge.

Claims

REVENDICATIONS
1. Groupe d' infusion pour machine à café du type espresso comportant un corps (1) renfermant une chambre d' infusion (2) cylindrique présentant un fond (3) et un débouché (5) et comprenant un plateau- filtre (6) monté mobile dans ladite chambre entre une position d'infusion et une position d'éjection, un piston presseur (9) monté mobile au moyen d'un mécanisme et pouvant occuper au moins deux positions, soit une position de tassage pour laquelle il pénètre dans ladite chambre d' infusion, soit une position de retrait pour laquelle il est situé au- dessus du débouché (5) , un dispositif de circulation d'eau chaude créant dans ladite chambre un courant d'm- fusion, ainsi qu'un circuit de purge d'au moins de la chambre comprenant un tronçon (11) dont l'entrée (12) est agencée dans le fond (3) de la chambre (2) sous le plateau-filtre (6) caractérisé en ce que le plateau-filtre (6), en position d'infusion, esc situé à faible distance du fond (3) de la chambre d'infusion ménageant ainsi un espace (13) entre l'entrée (12) du tronçon de purge et le plateau-filtre (6) .1. Brewing group for a coffee machine of the espresso type comprising a body (1) enclosing a cylindrical brewing chamber (2) having a bottom (3) and an outlet (5) and comprising a filter plate (6) mounted movable in said chamber between an infusion position and an ejection position, a pressure piston (9) mounted movable by means of a mechanism and capable of occupying at least two positions, namely a tamping position for which it enters said infusion chamber, that is to say a withdrawal position for which it is situated above the outlet (5), a device for circulating hot water creating in said chamber a flow of fusion, as well as a circuit for purging at least the chamber comprising a section (11) whose inlet (12) is arranged in the bottom (3) of the chamber (2) under the filter plate (6) characterized in that the plate -filter (6), in the infusion position, esc located a short distance from the bottom (3) of the infusion chamber thus providing a space (13) between the inlet (12) of the purge section and the filter plate (6).
2. Groupe d'infusion selon la revendication 1, ca- ractérisé en ce que le plateau-filtre (6) est équipé d'une tige (14) montée coulissante dans un alésage (15) traversant le corps (1) et le fond (3) de la chambre d'infusion et comprend une face inférieure (16) tournée vers le fond de la chambre et dans laquelle est aménagée un évidement (17) annulaire s ' ouvrant dans l'espace et dont le fond (18) présente une région située en regard de l'entrée (12) du conduit de purge (11) . 2. Brew group according to claim 1, characterized in that the filter plate (6) is equipped with a rod (14) slidably mounted in a bore (15) passing through the body (1) and the bottom (3) of the brewing chamber and comprises a lower face (16) facing the bottom of the chamber and in which is formed an annular recess (17) opening in space and the bottom (18) of which has a region located opposite the inlet (12) of the purge duct (11).
3. Groupe d'infusion selon la revendication 2, caractérisé en ce que la distance entre le fond (18) de 1 ' évidement (17) et le fond (3) de la chambre d'infusion se situe dans la plage de 0.7 à 1 millimètre.3. Brew group according to claim 2, characterized in that the distance between the bottom (18) of one recess (17) and the bottom (3) of the brewing chamber is in the range of 0.7 to 1 millimeter.
4. Groupe d'infusion selon l'une quelconque des revendications 2 à 3, caractérisé en ce que le plateau filtre (6) est formé par un disque dont le bord périphé- rique est adjacent à la paroi latérale (4) de la chambre (2) et dont les faces inférieure (16) et supérieure (21) comprennent respectivement 1 ' évidement (17) et un filtre (22), les deux dites faces comportant respectivement les débouchés d'une pluralité de trous (23) traversant le disque et 1 ' évidement (17) s ' étendant depuis ces débou- chés jusqu'au bord périphérique (20) du disque.4. Brewing group according to any one of claims 2 to 3, characterized in that the filter plate (6) is formed by a disc whose peripheral edge is adjacent to the side wall (4) of the chamber (2) and whose lower (16) and upper (21) faces respectively comprise the recess (17) and a filter (22), the two said faces respectively comprising the outlets of a plurality of holes (23) passing through the disc and the recess (17) extending from these outlets to the peripheral edge (20) of the disc.
5. Groupe d'infusion selon l'une quelconque des revendications précédentes, caractérisé en ce que le tronçon (11) du circuit de purge est constitué par une partie du dispositif de circulation d'eau chaude correspondant à un tronçon tubulaire intégré dans le corps (1) du groupe . 5. Infusion group according to any one of the preceding claims, characterized in that the section (11) of the purge circuit is constituted by a part of the hot water circulation device corresponding to a tubular section integrated in the body (1) of the group.
PCT/FR2000/003519 1999-12-14 2000-12-14 Infusion assembly for an espresso-type coffee machine WO2001043610A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9915851A FR2802073B1 (en) 1999-12-14 1999-12-14 BREW GROUP FOR ESPRESSO COFFEE MACHINE
FR99/15851 1999-12-14

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WO2001043610A1 true WO2001043610A1 (en) 2001-06-21

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WO2006056705A1 (en) * 2004-11-29 2006-06-01 Seb S.A. Brewing beverage dispenser comprising an improved boiler and a method for the production thereof
FR2878721A1 (en) * 2004-12-06 2006-06-09 Seb Sa AUTOMATIC INFUSION BEVERAGE DISPENSER COMPRISING A INFUSE DEVICE EXPULSION DEVICE
FR2886121A1 (en) 2005-05-25 2006-12-01 Reneka Internat Sarl Pod ejector device for hot drink e.g. espresso coffee, preparing unit, has pusher with rod projecting outside lower part of tilting receiver plate so that part of rod thrusts against vertical contact surface of unit when plate is tilted

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FR3108020B1 (en) 2020-03-12 2022-02-11 Seb Sa AUTOMATIC COFFEE MACHINE EQUIPPED WITH A PURGE DEVICE FOR THE COFFEE DISCHARGE DUCT

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US4491063A (en) * 1981-11-04 1985-01-01 Lucio Grossi Device for the water feeding and for the filtering of the coffee infusion in coffee-machines particularly of automatic type
EP0298547A2 (en) * 1987-07-09 1989-01-11 Lucio Grossi Automatic compact machine for the production of coffee and infusions, especially for domestic use
US5302407A (en) * 1992-03-19 1994-04-12 Cosmec S.R.L. Method and apparatus for preparing coffee beverages
WO1999012456A1 (en) 1997-09-05 1999-03-18 Moulinex S.A. Brewing unit for automatic beverage dispensers comprising in particular a boiler

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Publication number Priority date Publication date Assignee Title
US4491063A (en) * 1981-11-04 1985-01-01 Lucio Grossi Device for the water feeding and for the filtering of the coffee infusion in coffee-machines particularly of automatic type
EP0298547A2 (en) * 1987-07-09 1989-01-11 Lucio Grossi Automatic compact machine for the production of coffee and infusions, especially for domestic use
US5302407A (en) * 1992-03-19 1994-04-12 Cosmec S.R.L. Method and apparatus for preparing coffee beverages
WO1999012456A1 (en) 1997-09-05 1999-03-18 Moulinex S.A. Brewing unit for automatic beverage dispensers comprising in particular a boiler

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006056705A1 (en) * 2004-11-29 2006-06-01 Seb S.A. Brewing beverage dispenser comprising an improved boiler and a method for the production thereof
FR2878419A1 (en) * 2004-11-29 2006-06-02 Seb Sa INFUSION BEVERAGE DISPENSER COMPRISING AN IMPROVED BOILER AND METHOD OF MANUFACTURING THE SAME
FR2878721A1 (en) * 2004-12-06 2006-06-09 Seb Sa AUTOMATIC INFUSION BEVERAGE DISPENSER COMPRISING A INFUSE DEVICE EXPULSION DEVICE
WO2006061494A1 (en) * 2004-12-06 2006-06-15 Seb S.A. Automatic infused beverage dispenser comprising an infused product ejecting device
US7942093B2 (en) 2004-12-06 2011-05-17 Seb S.A. Automatic brewed beverage dispenser comprising an infused product ejecting device
FR2886121A1 (en) 2005-05-25 2006-12-01 Reneka Internat Sarl Pod ejector device for hot drink e.g. espresso coffee, preparing unit, has pusher with rod projecting outside lower part of tilting receiver plate so that part of rod thrusts against vertical contact surface of unit when plate is tilted

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FR2802073B1 (en) 2003-08-15

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