Cartridge containing one serving of coffee powder for preparing a coffee beverage
First Claim
1. Cartridge containing one serving of coffee powder for insertion into the brewing chamber of a coffee machine for preparing a coffee beverage in which the coffee machine includes a punching means directed toward the brewing chamber from the bottom of the brewing chamber, the cartridge comprising:
- a cartridge body having a cup-shaped portion for containing a coffee powder having a bottom and an open top for introduction of pressurized brewing water therethrough into said cartridge and a cover member covering the open top of said cup-shaped portion;
said bottom of said cartridge body having a passage defined by an aperture opening directly to the brewing chamber of the coffee machine when the cartridge is inserted therein for discharge of the coffee beverage therefrom;
a gas-tight foil member covering said passage and positioned to be removable or pierceable from outside said cartridge body, wherein said foil member is pierceable by the punching means and is located at the inside of the cartridge body between said filter element and said bottom of the cartridge body; and
a filter element located inside said cup-shaped portion of said cartridge body between said coffee powder and said passage in said bottom of said cartridge body;
wherein said aperture is sized to prevent increase of the pressure of the brewing water within said cup-shaped portion of said cartridge as the brewing water passes through said cartridge.
5 Assignments
0 Petitions
Accused Products
Abstract
Disclosed is a cartridge containing one serving of coffee powder for preparing a coffee beverage. The bottom of the cartridge is provided with a passage covered by a gas-tight foil. The foil is manually removed before the cartridge is inserted into the coffee machine. Between the passage and the coffee powder, a filter element is disposed, preventing coffee powder to escape from the cartridge. The passage shall prevent a hydraulic pressure build-up in the cartridge, which would lead to the formation of froth.
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Citations
28 Claims
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1. Cartridge containing one serving of coffee powder for insertion into the brewing chamber of a coffee machine for preparing a coffee beverage in which the coffee machine includes a punching means directed toward the brewing chamber from the bottom of the brewing chamber, the cartridge comprising:
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a cartridge body having a cup-shaped portion for containing a coffee powder having a bottom and an open top for introduction of pressurized brewing water therethrough into said cartridge and a cover member covering the open top of said cup-shaped portion; said bottom of said cartridge body having a passage defined by an aperture opening directly to the brewing chamber of the coffee machine when the cartridge is inserted therein for discharge of the coffee beverage therefrom; a gas-tight foil member covering said passage and positioned to be removable or pierceable from outside said cartridge body, wherein said foil member is pierceable by the punching means and is located at the inside of the cartridge body between said filter element and said bottom of the cartridge body; and a filter element located inside said cup-shaped portion of said cartridge body between said coffee powder and said passage in said bottom of said cartridge body; wherein said aperture is sized to prevent increase of the pressure of the brewing water within said cup-shaped portion of said cartridge as the brewing water passes through said cartridge. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. Cartridge containing one serving of coffee powder for insertion into the brewing chamber of a coffee machine for preparing a coffee beverage, comprising:
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a cartridge body having a cup-shaped portion for containing a coffee powder having a bottom and an open top for introduction of pressurized brewing water therethrough into said cartridge and a cover member covering the open top of said cup-shaped portion; said bottom of said cartridge body having a passage defined by an aperture; a gas-tight foil member covering said passage and positioned to be removable or pierceable from outside said cartridge body; and a filter element located inside said cup-shaped portion of said cartridge body between said coffee powder and said passage in said bottom of said cartridge body; wherein the interior of said cup-like shaped portion of said cartridge is provided with an annular groove, and in which said filter element located between said passage and the coffee powder is provided with a peripheral edge portion engaging said groove for fixing said filter element to said lower body portion of said cartridge. - View Dependent Claims (22)
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23. Cartridge containing one serving of coffee powder for insertion into the brewing chamber of a coffee machine for preparing a coffee beverage, the coffee machine including a punching means directed toward the brewing chamber, comprising:
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a cartridge body having a cup-shaped portion for containing a coffee powder having a bottom and an open top for introduction of pressurized brewing water therethrough into said cartridge and a cover member covering the open top of said cup-shaped portion; said bottom of said cartridge body having a passage defined by an aperture opening directly to the brewing chamber of the coffee machine when the cartridge is inserted therein for discharge of the coffee beverage therefrom; a gas-tight foil member covering said passage and positioned to be removable or pierceable from outside said cartridge body; a filter element located inside said cup-shaped portion of said cartridge body between said coffee powder and said passage in said bottom of said cartridge body; and a dimensionally stable distribution member located in the interior of said cartridge body member between said cover member and the coffee powder contained in the cartridge, wherein said aperture is sized to prevent increase of the pressure of the brewing water within said cup-shaped portion of cartridge as the brewing water passes through said cartridge, and further wherein at least said distribution member comprises at least one recess directed towards the interior of said cup-shaped portion into which the punching means can extend after having pierced said cover member such that the punching means piercing said cover member cannot damage said distribution member.
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24. Cartridge containing one serving of coffee powder for insertion into the brewing chamber of a coffee machine for preparing a coffee beverage, the coffee machine including a punching means directed toward the brewing chamber, comprising:
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a cartridge body having a cup-shaped portion for containing a coffee powder having a bottom and an open top for introduction of pressurized brewing water therethrough into said cartridge and a cover member covering the open top of said cup-shaped portion; said bottom of said cartridge body having a passage defined by an aperture opening directly to the brewing chamber of the coffee machine when the cartridge is inserted therein for discharge of the coffee beverage therefrom; a gas-tight foil member covering said passage and positioned to be pierceable from outside said cartridge body; and a filter element located inside said cup-shaped portion of said cartridge body between said coffee powder and said passage in said bottom of said cartridge body; wherein said aperture is sized to prevent increase of the pressure of the brewing water within said cup-shaped portion of cartridge as the brewing water passes through said cartridge, and further wherein at least said filter element comprises at least one recess directed towards the interior of said cup-shaped portion into which the punching means can extend after having pierced said foil member such that the punching means piercing said foil member cannot damage said filter element.
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25. Cartridge containing a serving of coffee powder for insertion into the brewing chamber of a coffee machine, the coffee machine including two punching means directed toward the brewing chamber, one at the top and the other at the bottom of the brewing chamber, the cartridge comprising:
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a cartridge body having a cup-shaped portion for containing a coffee powder having a bottom and an open top for introduction of pressurized brewing water therethrough into said cartridge and a cover member covering the open top of said cup-shaped portion, said cover member having a portion pierceable from outside said cartridge body by said top one of the two punching means; said bottom of said cartridge body having a passage defined by an aperture opening directly to the brewing chamber of the coffee machine when the cartridge is inserted therein for discharge of the coffee beverage therefrom; a gas-tight foil member covering said passage and positioned to be pierceable from outside said cartridge body by said bottom other of the two punching means; and a filter element located inside said cup-shaped portion of said cartridge body between said coffee powder and said passage in said bottom of said cartridge body. - View Dependent Claims (26)
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27. Method for preparing a coffee beverage comprising the steps of:
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providing a cartridge containing one serving of coffee powder comprising; a cartridge body having a cup-shaped portion for containing a coffee powder having a bottom and an open top for introduction of pressurized brewing water therethrough into said cartridge and a cover member covering the open top of said cup-shaped portion, said cover member having a portion pierceable from outside said cartridge body; said bottom of said cartridge body having a passage defined by an aperture opening directly to the brewing chamber of the coffee machine when the cartridge is inserted therein for discharge of the coffee beverage therefrom; a gas-tight foil member covering said passage and positioned to be pierceable from outside said cartridge body; and a filter element located inside said cup-shaped portion of said cartridge body between the coffee powder and said passage in said bottom of said cartridge body; inserting the cartridge into a brewing chamber of a coffee machine, the coffee machine including two punching means directed toward the brewing chamber, one at the top and the other at the bottom of the brewing chamber; piercing the cover member by means of the top punching means; piercing the foil member by means of the bottom punching means; and feeding brewing water into the interior of the punched cartridge. - View Dependent Claims (28)
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Specification