WO2011113474A1 - Machine à café - Google Patents

Machine à café Download PDF

Info

Publication number
WO2011113474A1
WO2011113474A1 PCT/EP2010/053322 EP2010053322W WO2011113474A1 WO 2011113474 A1 WO2011113474 A1 WO 2011113474A1 EP 2010053322 W EP2010053322 W EP 2010053322W WO 2011113474 A1 WO2011113474 A1 WO 2011113474A1
Authority
WO
WIPO (PCT)
Prior art keywords
coffee
reservoir
outlet opening
brewing chamber
secondary reservoir
Prior art date
Application number
PCT/EP2010/053322
Other languages
English (en)
Inventor
Coen Jan Leopold Van Den Brand
Jeroen F. C. Roeleven
Original Assignee
Duizendpoot B.V.
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 Duizendpoot B.V. filed Critical Duizendpoot B.V.
Priority to PCT/EP2010/053322 priority Critical patent/WO2011113474A1/fr
Publication of WO2011113474A1 publication Critical patent/WO2011113474A1/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
    • A47J31/44—Parts or details or accessories of beverage-making apparatus
    • A47J31/46—Dispensing spouts, pumps, drain valves or like liquid transporting devices
    • A47J31/462—Dispensing spouts, pumps, drain valves or like liquid transporting devices with an intermediate liquid storage tank
    • A47J31/467—Dispensing spouts, pumps, drain valves or like liquid transporting devices with an intermediate liquid storage tank for the infusion
    • 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
    • A47J31/0668—Filters or strainers for coffee or tea makers ; Holders therefor for brewing coffee under pressure, e.g. for espresso machines specially adapted for cartridges
    • 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
    • A47J31/4496—Means to produce beverage with a layer on top, e.g. of cream, foam or froth

Definitions

  • the invention relates to a coffee maker comprising:
  • a brewing chamber with an inlet for hot water, supplied by a pump, a coffee pad holder and a restricted outlet opening such that when hot water is pumped from the inlet through a coffee pad arranged in the pad holder, a jet of coffee extract is generated by the restricted outlet opening;
  • Such a coffee maker is for example known from WO 2004/023948.
  • a coffee pad which is a pouch of filter sheet filled with grinded coffee, is arranged in the coffee pad holder of the brewing chamber. Then hot water is pumped under pressure into the coffee pad, such that coffee extract is brewed. The brewed coffee extract is then pumped under pressure to the restricted outlet opening, which results in a jet of coffee extract. This jet of coffee extract is jetted into the main reservoir from which it can flow into a coffee cup.
  • the known coffee makers using coffee pads are all powered by mains electricity, i.e. 230 volt AC or 110 volt AC. This mains electricity provides enough power to generate a sufficiently strong jet of coffee extract, which in turn
  • pads not filled with grinded coffee in a coffee maker according to the prior art.
  • These pads can for example be filled with tea or chocolate powder to make respectively a cup of tea or a cup of hot chocolate .
  • the power of the jet has to be adjusted for these other kinds of drinks.
  • tea it is not desired to have a layer of foam on the tea, while with a cup of hot chocolate a thick layer of foam is desired.
  • a coffee maker according to the preamble which is characterized by a secondary reservoir arranged in the main reservoir in line with the outlet opening of the brewing chamber, wherein the secondary reservoir has an opening at the top to receive the jet of coffee from the outlet opening.
  • the jet of coffee extract is collected first in the secondary reservoir. If the secondary reservoir is full it will overflow to the primary reservoir.
  • the jet of coffee extract from the restricted outlet opening is jetted into the pool of liquid in the secondary reservoir.
  • the jet When the jet enters the pool of liquid it will draw in air, which produces the desired foam.
  • the foam will float over the edge of the secondary reservoir into the main reservoir from which it will flow into a coffee cup.
  • the secondary reservoir comprises at the bottom at least one outlet opening to drain the secondary reservoir into the main reservoir.
  • the at least one outlet opening is so small that a pool of liquid will be formed in the secondary reservoir as long as the jet is generated.
  • the liquid in the secondary reservoir can slowly drain into the main reservoir to ensure that no substantial amounts of coffee extract are left in the coffee maker.
  • the secondary reservoir could have a cylindrical housing. Such a shape corresponds to the more common shape of pads, pad holders and the shape of the jet. However, a more square housing could also be possible for the secondary
  • the secondary reservoir is height adjustable. By adjusting the height of the secondary reservoir the amount of generated foam can be controlled. If for example a pad filled with chocolate powder is used, the height of the secondary reservoir is increased to generate more foam. For brewing a cup of tea, the height of the secondary reservoir is reduced .
  • outlet opening of the brewing chamber and the secondary reservoir are concentrically arranged. This provides a symmetrical reservoir in which the jet is jetted such that an optimal amount of foam can be generated.
  • a boiler for heating water to a preset temperature, wherein the boiler has a cold water inlet and a hot water outlet, which is connected to the inlet of the brewing chamber;
  • the boiler and pump are designed to be operated at 12 volts or 24 volts. This makes it possible to take the coffee maker in a car, boat, truck or for camping.
  • the main reservoir furthermore comprises preferably an outlet for dispensing brewed coffee. Below this outlet one can put a coffee cup.
  • Figure 1 shows a cross sectional view of an embodiment of the invention in detail.
  • Figure 2 shows the embodiment of figure 1 in a schematic view of a coffee maker.
  • FIG 1 a detail of an embodiment of a coffee maker 1 according to the invention is shown.
  • This embodiment 1 has a brewing chamber with a pad holder 2.
  • a pouch 3 comprising grinded coffee 4, is placed.
  • a insert piece 5 is arranged at the bottom of the pad holder 2 and permanently attached thereto. This insert piece 5 is sealed by a sealing ring 6.
  • An outlet opening 7 is arranged in the insert piece 5. This outlet opening 7 is dimensioned relatively small, such that it provides a restriction for fluid flowing out of the brewing chamber.
  • a coffee extract is brewed by providing hot water H on top of the pouch 3.
  • the hot water H penetrates the pouch and gets in to contact with the grinded coffee.
  • a coffee extract results from this contact, which leaves the pouch 3 at the bottom.
  • the hot water H is provided by a boiler, the water H is pressed at pressure through the pouch 3.
  • the coffee extract is forced through the restricted outlet opening 7 at the center of the insert piece 5, generating a jet which is jetted into a main reservoir 8 below the pad holder 2.
  • the main reservoir 8 has an outlet opening 9 at one side of the bottom, underneath a coffee cup C can be placed.
  • the outlet opening 9 can also be arranged more in the center, which is advantageous for draining the reservoir.
  • a cylindrical body 10 is At the center of the bottom of the main reservoir 8 .
  • This secondary reservoir 10 is concentrically arranged with the outlet opening 7 of the pad holder 2.
  • the cylindrical body 10 is provided with drainage openings 11, which ensure that the secondary reservoir 10 will always drain into the main reservoir 9.
  • the openings 11 can also be provided at the bottom edge of the body 10 as battlements, which ensures that there will always be a leak.
  • Another option is to provide the body 10 lose on the bottom of the primary reservoir, such that fluid can flow below the cylindrical body.
  • FIG 2 shows a schematic overview of a coffee maker 1 as shown in figure 1.
  • a closing plate 12 is shown on top of the pad holder 2.
  • This closing plate 12 fixates the coffee pad 3, 4 and ensures that the brewing chamber formed by the closing plate 12 and the pad holder 2 can be pressurized.
  • a seal (not shown) is arranged between the closing plate 12 and the pad holder 2.
  • the closing plate 12 is sufficiently rigid, such that it will not deform as a result of the pressure and a closing mechanism is provided as generally known in the prior art .
  • the coffee maker 1 further has a water reservoir 13 from which cold water can be pumped by the pump 14. This pump 14 pumps the cold water into a boiler 15.
  • a heating coil 16 is arranged within this boiler 15 to heat the water to a desired temperature.
  • the hot water is pumped by pump 14 through channel 17 into the closing plate 12.
  • the heated water H exits the closing plate 12 and is pushed through the pouch 3 and into the outlet opening 7. Due to the pressure of the pump 14 a jet 18 is generated which is jetted into the open top of the secondary reservoir 10. This secondary reservoir will fill up, providing a small pool of coffee extract. As the jet hits the pool of coffee extract, air is drawn in and a foam 19 is generated. This foam flows together with the coffee extract over the edge of the secondary reservoir 10 through the main reservoir to the outlet opening 9 and into the coffee cup C.
  • the amount of generated foam 19 can be controlled.
  • a valve can be arranged in the channel 17 to prevent early dispensing of water in the brewing chamber. This valve could provide a bypass to the water reservoir as long as the pump 14 is not providing any pressure.

Landscapes

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

Abstract

La présente invention concerne une machine à café (1) comprenant : une chambre d'infusion comprenant une admission pour de l'eau chaude, alimentée par une pompe, un support de dosette de café (2) et une ouverture de sortie réduite (7) de sorte que, lorsque l'eau chaude (H) est pompée depuis l'admission pour passer à travers la dosette de café (3) disposée dans le support de dosette, un jet de café est généré par l'ouverture de sortie réduite ; un réservoir principal (8) disposé sous l'ouverture de sortie de la chambre d'infusion ; et un réservoir auxiliaire (10) disposé dans le réservoir principal et aligné avec l'ouverture de sortie de la chambre d'infusion, le réservoir auxiliaire présentant une ouverture au sommet pour recevoir le jet de café provenant de l'ouverture de sortie.
PCT/EP2010/053322 2010-03-15 2010-03-15 Machine à café WO2011113474A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/EP2010/053322 WO2011113474A1 (fr) 2010-03-15 2010-03-15 Machine à café

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2010/053322 WO2011113474A1 (fr) 2010-03-15 2010-03-15 Machine à café

Publications (1)

Publication Number Publication Date
WO2011113474A1 true WO2011113474A1 (fr) 2011-09-22

Family

ID=42985332

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2010/053322 WO2011113474A1 (fr) 2010-03-15 2010-03-15 Machine à café

Country Status (1)

Country Link
WO (1) WO2011113474A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITBS20130117A1 (it) * 2013-07-31 2015-02-01 Capitani Srl Valvola per gruppo di infusione e gruppo di infusione montante tale valvola
CN107581908A (zh) * 2017-10-09 2018-01-16 吴建威 一种具有泡沫发生功能的易卸料咖啡高压酿造装置
IT201600093576A1 (it) * 2016-09-16 2018-03-16 Carimali S P A Con Socio Unico Macchina per la preparazione di bevande
WO2022069098A1 (fr) * 2020-09-30 2022-04-07 Jura Elektroapparate Ag Procédé d'édulcoration d'un fluide contenant du lait, dispositif de distribution, unité d'édulcoration et utilisation d'une unité d'édulcoration

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0878158A2 (fr) * 1997-05-13 1998-11-18 Sara Lee/DE N.V. Appareil à préparer du café muni d'une couche de crema à pores fins
EP0904718A1 (fr) * 1997-09-30 1999-03-31 Sara Lee/DE N.V. Machine à café
WO2003105645A1 (fr) * 2002-06-12 2003-12-24 Sara Lee/De N.V. Appareil et procede de preparation d'un cafe recouvert d'une couche mousseuse a fines bulles, en particulier d'un cappucino
WO2004023948A1 (fr) 2002-09-13 2004-03-25 Koninklijke Philips Electronics N.V. Support de garniture pour appareil de preparation de boisson, unite de production de mousse et appareil de preparation de boisson presentant un tel support, et procede de preparation d'une boisson comportant une couche de mousse au moyen d'un tel support
WO2005016095A1 (fr) * 2003-08-19 2005-02-24 Koninklijke Philips Electronics N.V. Dispositif de fabrication de boissons comportant un organe de moussage

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0878158A2 (fr) * 1997-05-13 1998-11-18 Sara Lee/DE N.V. Appareil à préparer du café muni d'une couche de crema à pores fins
EP0904718A1 (fr) * 1997-09-30 1999-03-31 Sara Lee/DE N.V. Machine à café
WO2003105645A1 (fr) * 2002-06-12 2003-12-24 Sara Lee/De N.V. Appareil et procede de preparation d'un cafe recouvert d'une couche mousseuse a fines bulles, en particulier d'un cappucino
WO2004023948A1 (fr) 2002-09-13 2004-03-25 Koninklijke Philips Electronics N.V. Support de garniture pour appareil de preparation de boisson, unite de production de mousse et appareil de preparation de boisson presentant un tel support, et procede de preparation d'une boisson comportant une couche de mousse au moyen d'un tel support
WO2005016095A1 (fr) * 2003-08-19 2005-02-24 Koninklijke Philips Electronics N.V. Dispositif de fabrication de boissons comportant un organe de moussage

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITBS20130117A1 (it) * 2013-07-31 2015-02-01 Capitani Srl Valvola per gruppo di infusione e gruppo di infusione montante tale valvola
IT201600093576A1 (it) * 2016-09-16 2018-03-16 Carimali S P A Con Socio Unico Macchina per la preparazione di bevande
EP3298934A1 (fr) * 2016-09-16 2018-03-28 Carimali S.p.A. Con Socio Unico Machine de préparation de boissons
CN107581908A (zh) * 2017-10-09 2018-01-16 吴建威 一种具有泡沫发生功能的易卸料咖啡高压酿造装置
WO2022069098A1 (fr) * 2020-09-30 2022-04-07 Jura Elektroapparate Ag Procédé d'édulcoration d'un fluide contenant du lait, dispositif de distribution, unité d'édulcoration et utilisation d'une unité d'édulcoration

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