WO2008004073A2 - Procédé de percolation et machine pour faire une boisson à partir d'une matière pulvérulente anhydre - Google Patents

Procédé de percolation et machine pour faire une boisson à partir d'une matière pulvérulente anhydre Download PDF

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Publication number
WO2008004073A2
WO2008004073A2 PCT/IB2007/001798 IB2007001798W WO2008004073A2 WO 2008004073 A2 WO2008004073 A2 WO 2008004073A2 IB 2007001798 W IB2007001798 W IB 2007001798W WO 2008004073 A2 WO2008004073 A2 WO 2008004073A2
Authority
WO
WIPO (PCT)
Prior art keywords
percolating
machine
discharge channel
chamber
channels
Prior art date
Application number
PCT/IB2007/001798
Other languages
English (en)
Other versions
WO2008004073A3 (fr
Inventor
Virginio Cortese
Original Assignee
Sgl Italia S.R.L.
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 Sgl Italia S.R.L. filed Critical Sgl Italia S.R.L.
Priority to EP07804548A priority Critical patent/EP2040586A2/fr
Publication of WO2008004073A2 publication Critical patent/WO2008004073A2/fr
Publication of WO2008004073A3 publication Critical patent/WO2008004073A3/fr

Links

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
    • A47J31/06—Filters or strainers for coffee or tea makers ; Holders therefor
    • A47J31/0657—Filters or strainers for coffee or tea makers ; Holders therefor for brewing coffee under pressure, e.g. for espresso machines
    • A47J31/0663—Filters or strainers for coffee or tea makers ; Holders therefor for brewing coffee under pressure, e.g. for espresso machines to be used with loose coffee
    • 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
    • A47J31/3666—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 whereby the loading of the brewing chamber with the brewing material is performed by the user
    • A47J31/3671—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
    • A47J31/4403—Constructional details
    • A47J31/446—Filter holding means; Attachment of filters to beverage-making apparatus
    • A47J31/4464—Filter holding means; Attachment of filters to beverage-making apparatus by means of bayonet-type engagement

Definitions

  • the present invention relates to a percolating method for making a beverage from anhydrous powdered material .
  • the present invention relates to a percolating method for making a beverage from anhydrous powdered material, wherein pressurized hot water is fed through a fluidtight percolating chamber containing a measure of said material and communicating with the outside via a discharge channel .
  • a percolating method for making a beverage from anhydrous powdered material as claimed in independent Claim 1 and, preferably, in any one of the following Claims depending directly or indirectly on Claim 1.
  • a percolating machine for making a beverage from anhydrous powdered material as claimed in independent Claim 3 and, preferably, in any one of the following Claims depending directly or indirectly on Claim 3.
  • Figure 1 shows a schematic side view of a preferred embodiment of the machine according to the present invention
  • Figure 2 shows a larger-scale axial section of an infusion device of the Figure 1 machine
  • Figure 3 shows an exploded view of . the Figure 2 infusion device;
  • Figure 4 shows a section along line IV-IV in Figure 2;
  • Figure 5 shows a larger-scale underside view of a detail in Figure 2;
  • Figure 6 shows an axial section of a detail in Figure 2.
  • Number 1 in Figure 1 indicates as a whole a percolating machine comprising an outer casing 2; and an infusion device 3 having a substantially vertical axis 4 and located over a flat horizontal surface of outer casing 2 defining a cup supporting surface.
  • infusion device 3 comprises a removable percolating cup 5; a pressurized-hot-water sprinkler 6 coaxial with axis 4; and a casing 7 integral with outer casing 2 and comprising a C-shaped bottom portion defining a seat 8 for supporting cup 5 in a percolating position ( Figure 1) , in which cup 5 is coaxial with, and connected in fluidtight manner to, sprinkler 6 to form, with sprinkler 6, a percolating chamber 9.
  • cup 5 comprises a body 10, which has an axis coincident with axis 4 in the percolating position, has a radial handle 11, and is bounded at the top by a flat surface 12 having a central cavity 13 defining a bottom half- chamber of percolating chamber 9, and for partly housing a known wafer 14 containing a measure of ground coffee or barley or other anhydrous material .
  • Cup 5 also comprises an emulsifying device 16, which is inserted inside a hole 15 coaxial with axis 4 and communicating with cavity 13, and is designed to receive and emulsify the percolated beverage from cavity 13 - as described in detail below - to obtain, at the outlet of infusion device 3, a beverage covered with a thick, stable layer of fine froth.
  • an emulsifying device 16 which is inserted inside a hole 15 coaxial with axis 4 and communicating with cavity 13, and is designed to receive and emulsify the percolated beverage from cavity 13 - as described in detail below - to obtain, at the outlet of infusion device 3, a beverage covered with a thick, stable layer of fine froth.
  • emulsifying device 16 comprises a cylindrical body 17, in turn comprising a top portion 18 and a bottom portion 19 equal in diameter and separated by an annular flange 20.
  • Top portion 18 and flange 20 are inserted precisely inside respective portions of hole 15 formed axially along body 10 of cup 5; and bottom portion 19 is housed precisely inside a respective portion of hole 15 formed axially in a beverage spout 21, which is secured to body 10 by screws and with the interposition of an annular seal, and has, on the side facing emulsifying device 16, a tubular appendix extending from spout 21 towards flange 20 to press flange 20 against body 10 and lock emulsifying device 16 axially inside hole 15.
  • An annular seal 22 is inserted between spout 21 and emulsifying device 16, has an outside diameter equal to the diameter of bottom portion 19, and has an inside diameter equal to the diameter of a hole 23 formed in spout 21, coaxially with axis 4, to connect emulsifying device 16 to the outside and conduct the beverage from emulsifying device 16 out of cup 5.
  • top portion 18 On the side facing cavity 13, top portion 18 has a truncated-cone-shaped portion projecting axially from hole 15 and having a flat end surface, to which is fitted, by a screw 24, a perforated disk 25 for filtering the beverage extracted from wafer 14, and for separating the centre of cavity 13 from a catch chamber 26 formed at the bottom of cavity 13 and defined by the truncated-cone-shaped portion of emulsifying device 16 and by disk 25.
  • Catch chamber 26 is surrounded completely by an annular groove coaxial with axis 4 and housing a seal 27.
  • emulsifying device 16 has two axial grooves formed, diametrically opposite each other with respect to axis 4, in the lateral surface of body 17 and closed laterally by the lateral surface of hole 15 to define, with hole 15, respective channels 28, which define a first portion of a beverage discharge channel formed partly in emulsifying device 16 and partly in spout 21.
  • Channels 28 come out inside an annular dispensing chamber 29 defined by seal 22 and by an annular groove, which is formed axially in an end surface 30 of bottom portion 19, has an outside diameter smaller than bottom portion 19, and has an inside diameter smaller than the diameter of hole 23.
  • Dispensing chamber 29 communicates with hole 23 by two narrow channels 31, which define a second portion of the beverage discharge channel, and are defined by respective radial grooves formed in surface 30 and each extending, along an axis 32 perpendicular to axis 4, from a respective inlet facing a respective channel 28, to a respective outlet facing the other outlet and communicating with hole 23, which defines a third and end portion of the discharge channel.
  • each channel 31 comprises a tubular first portion, i.e. closed by a corresponding annular portion of seal 22; and a U-shaped second portion open towards hole ' 23.
  • each mixture flow from dispensing chamber 29 into a respective channel 31 is accelerated sharply as it .flows along the tubular first portion of channel 31, and is converted into a high-speed radial jet directed along axis 32 towards axis 4 .and towards the opposite jet from the other channel 31.
  • the emulsified beverage flows out of spout 21 through hole 23 and into a cup, placed beforehand underneath spout 21, to form, inside the cup, a bottom layer of liquid beverage, and a thick, stable top layer of "cream” .
  • An alternative embodiment may have more than two channels 28 and/or channels 31.
  • the respective jets may- collide at one point common to all of channels 31, or there may be a number of collision points, at each of which at least two channels 31 converge.
  • percolating cup 5 may be one of various known types commonly used in percolating machines, e.g. a removable bayonet-connection or non-removable type.
  • percolating cup 5 may be designed to house a measure of loose ground coffee, or a known perforated or sealed capsule containing a measure of ground coffee.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Apparatus For Making Beverages (AREA)
  • Formation And Processing Of Food Products (AREA)
  • Beverage Vending Machines With Cups, And Gas Or Electricity Vending Machines (AREA)

Abstract

L'invention concerne un procédé de percolation pour faire une boisson à partir d'une matière pulvérulente anhydre logée dans une chambre de percolation (9) en communication avec l'extérieur par un conduit d'évacuation (23,28,31). Selon l'invention, de l'eau chaude sous pression est introduite à travers la chambre de percolation (9) pour obtenir un mélange liquide de boisson et d'air, ce mélange est émulsifié par séparation du flux du mélange dans le conduit d'évacuation (23,28,31) en au moins deux flux partiels qui se rencontrent en un point de confluence situé dans le conduit d'évacuation (23,28,31).
PCT/IB2007/001798 2006-06-30 2007-06-29 Procédé de percolation et machine pour faire une boisson à partir d'une matière pulvérulente anhydre WO2008004073A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP07804548A EP2040586A2 (fr) 2006-06-30 2007-06-29 Procédé de percolation et machine pour faire une boisson à partir d'une matière pulvérulente anhydre

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITTO2006A000483 2006-06-30
ITTO20060483 ITTO20060483A1 (it) 2006-06-30 2006-06-30 Metodo e macchina di percolazione per la preparazione di una bevanda a partire da del materiale anidro in polvere

Publications (2)

Publication Number Publication Date
WO2008004073A2 true WO2008004073A2 (fr) 2008-01-10
WO2008004073A3 WO2008004073A3 (fr) 2008-11-06

Family

ID=38894937

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2007/001798 WO2008004073A2 (fr) 2006-06-30 2007-06-29 Procédé de percolation et machine pour faire une boisson à partir d'une matière pulvérulente anhydre

Country Status (3)

Country Link
EP (1) EP2040586A2 (fr)
IT (1) ITTO20060483A1 (fr)
WO (1) WO2008004073A2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010069694A1 (fr) * 2008-12-18 2010-06-24 Lastec Ag Filtre, machine à café et procédé de fabrication d'un filtre
US9919864B2 (en) 2010-06-11 2018-03-20 Koninklijke Douwe Egberts B.V. Cartridge and method for the preparation of beverages

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5711880A (en) 1995-09-02 1998-01-27 Braun Aktiengesellschaft Filtering means for the filtration of extraction beverages, in particular espresso

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2885289B1 (fr) * 2005-05-04 2010-09-10 Seb Sa Machine a cafe comportant un dispositif de confection de mousse
US20070028783A1 (en) * 2005-08-02 2007-02-08 Chen Yee M Brewing apparatus for preparing foam, froth, or crema under low pressure

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5711880A (en) 1995-09-02 1998-01-27 Braun Aktiengesellschaft Filtering means for the filtration of extraction beverages, in particular espresso

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010069694A1 (fr) * 2008-12-18 2010-06-24 Lastec Ag Filtre, machine à café et procédé de fabrication d'un filtre
CH700135A1 (de) * 2008-12-18 2010-06-30 Lastec Ag Brühsieb, Kaffeemaschine und Verfahren zum Herstellen eines Brühsiebs.
US9919864B2 (en) 2010-06-11 2018-03-20 Koninklijke Douwe Egberts B.V. Cartridge and method for the preparation of beverages

Also Published As

Publication number Publication date
ITTO20060483A1 (it) 2008-01-01
WO2008004073A3 (fr) 2008-11-06
EP2040586A2 (fr) 2009-04-01

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