Abstract: The coffee maker comprises a height adjustment assembly by means of which the height position of a collecting tray, adapted to receive one or two coffee cups to be filled with coffee beverage, is adjustable. The collecting tray is attached to a support member. The height adjustment assembly comprises at least one vertically extending gear rack that can be non-positively engaged by a slider provided at the support member. The slider is biased by a spring towards the gear rack and can be manually displaced against the force of the spring.

Abstract: The invention provides a coffee machine for brewing coffee powder pre-packed in a cartridge, whereby the bottom of the brewing chamber receiving the cartridge is provided with perforator members to perforate the cartridge bottom upon closing the brewing chamber. A brewing chamber housing contains an upper and a lower brewing chamber portion together delimiting the brewing chamber and axially movable relative to each other. The upper brewing chamber portion is biased by a spring to move away from the lower brewing chamber portion and provided with a protection member that bars access to the perforator members if the upper brewing chamber member is in its upper rest position. The upper brewing chamber member is moved, together with the protection member, from an upper into a lower operating position in which the perforator member provide the bottom of the cartridge with elongate slots.

Abstract: The invention refers to a coffee machine having a brewing chamber and a beverage outlet. A valve assembly is inserted between the brewing chamber and the beverage outlet. The valve assembly comprises a valve seat and a valve body member movable with regard to the valve seat. The valve body member is biased by a spring and can be moved, against the force of the spring, by the pressure of the coffee beverage flowing through the valve assembly. Moreover, these are provided for adjusting the bias force of the spring. In such a design, the operator or user of the coffee machine can directly influence the amount of coffee to be brewed per time unit. Moreover, within the limits of the user selected value, the brewing water flows through the coffee powder received in the brewing chamber with an essentially constant flow rate, regardless the amount and granule size of the coffee powder received in the brewing chamber.

Abstract: A coffee machine assembly is designed to be received in a kitchen furnishing. For this purpose, the front area of the coffee machine assembly is built as an integral part of a front plate member of the kitchen furnishing. The front area of the coffee machine assembly extends but over a portion of a front plate member of the kitchen furnishing. Thus, additional space is available for a receiving area for receiving items as, for example, coffee cups. Preferably, the receiving area is located besides the coffee machine and provided with subdivisions in vertical direction. The coffee machine itself is designed as a compact unit and is placed, for example, on an extendable unit. Moreover, at least a portion of the receiving area could be heated.

Abstract: An assembly for feeding packed portions of coffee powder to a brewing unit is provided by the present invention. That assembly has a brewing chamber and a magazine adapted to receive the coffee portion to be brewed. The magazine is rotatable and adapted to receive a plurality of cartridges, each containing a coffee portion. Further, there is provided a device for individually feeding the coffee portions into the brewing unit.

Abstract: A coffee machine is provided with a boiler for heating brewing water, a brewing cylinder defining a brewing chamber, a closure piston for closing the one open end of the brewing cylinder as well as a brewing piston for compressing the coffee powder in the brewing cylinder and/or for ejecting the elutriated coffee powder cake, whereby the brewing piston is longitudinally movable in the brewing cylinder. The closure piston is integrally formed or rigidly connected to the housing of the boiler and firmly mounted to the housing of the coffee machine. Moreover, there is provided a brewing module that is removably inserted into the housing of the coffee machine and that includes at least the brewing cylinder and the brewing piston. The brewing cylinder and the brewing piston are movable in longitudinal direction, but cannot be pivoted. Such a coffee machine can be designed very compactly.