Abstract: A brewing device (1) for a coffee machine comprises a brewing cylinder (6) with a cylindrical bore and two pistons (3 and 4), by means of which the brewing cylinder is able to be closed to form a brewing chamber. The brewing cylinder (6) and the pistons (3 and 4) are held in a frame (2) in a way displaceable relative to each other and are drivable via a drive unit (9, 10). Before the brewing operation, coffee powder is introduced into the brewing chamber. The coffee powder cake (17) ejected from the brewing chamber after the brewing operation is able to be stripped off into a collection container (20) via a stripping element (18). Disposed between the stripping element (18) and the collection container (20) is a subcomponent (22) that separates the coffee powder cake (17), stripped off by the stripping element (18), into pieces (17?, 17?) before said coffee powder cake reaches the collection container (20).

Abstract: A brewing facility for a coffee machine comprises a brewing cylinder (6) and an upper plunger (3) and a lower plunger (4) by means of which a brewing chamber is formed. The brewing cylinder (6) and the plungers (3 and 4) are held in a frame (2) such that they can be shifted, and can be driven by means of a driving facility. For adding the coffee powder, a coffee powder feed facility is provided which in turn is provided with a swivel-type funnel (14), which can be moved against a spring force from a filling position into a swiveled-away position, and vice versa. The swivel-type funnel (14) can be swiveled further from the swiveled-away position to a fully swiveled-out position and, in said fully swiveled-out position, can be locked by locking means (29) and unlocked by unlocking means (30). In this way, the swivel-type funnel (14) can be held in the fully swiveled-out position during the cleaning of, in particular, the upper plunger (3).

Abstract: The invention relates to a brewing device (1) for a coffee machine, comprising a brewing cylinder (6) having a cylindrical bore and an upper piston (3) and a lower piston (4), by means of which the brewing cylinder (6) can be closed off to form a brewing chamber. The brewing cylinder (6) and the pistons are held in a frame, and can be displaced relative to each other and driven by a spindle (9). The spindle (9) has a trapezoidal thread (8). A threaded part (7a) acts together with said spindle, and is disposed on a carrier (7) attached to the brewing cylinder (6). A ground coffee feed device is provided for filling the brewing chamber with ground coffee, and a stripping element (19) serves to strip off the residual coffee grounds remaining on the lower piston (4) after the brewing process. The spindle (9) having the trapezoidal threading (8) is supported by supporting means (31) on the area opposite the threaded part (7a), and said means can be mounted on the frame (2).

Abstract: A brewing apparatus (1) for a coffee machine comprises a brewing cylinder (6) with a cylindrical bore and an upper piston and a lower piston (4), by means of which the brewing cylinder (6) is able to be closed off in order to form a brewing chamber. The brewing cylinder (6) and the pistons are held in a frame (2) in a way displaceable relative to one another, and are drivable via a spindle (9). Interacting with the spindle is a threaded part (7a) which is arranged on a driven part (7) fitted on the brewing cylinder (6). A coffee-powder-feed device is provided for filling the brewing chamber with coffee powder, and a stripping element (19) serves for stripping off the coffee-powder cake which remains on the surface (4a) of the bottom piston (4) following the brewing operation.

Abstract: A coffee machine (1) for dispensing brewed coffee is equipped with a coffee spout (2) beneath which a cup (3) is placeable. The brewed coffee emerging through the coffee spout (2) ends up in the vessel; the operation of the coffee machine and the delivery of coffee are controlled by means of a control unit (4). At least one supply means (5) is associated with the coffee machine (1) for dispensing at least one flavoring agent (6), which supply means are in each case equipped with a container (7) for accommodating a flavoring agent (6) and delivery and metering means (12, 13, 14, 15) for delivering a metered quantity of the flavoring agent (6) from the container into a line (9). This line (9) is provided with a spout (10) which is arranged such that the delivered flavoring agent (6) ends up in the cup (3) positioned beneath the coffee spout (2). With this device an additional special flavor can be admixed with a freshly brewed coffee.

Abstract: In a device for dispensing milk and/or milk froth from a container (1) containing milk, this container is placed in a coolable cabinet (3). Via an extraction line (4) and a further line (5), the milk reaches an emulsifying device (6) disposed outside the coolable cabinet. The product received is dispensed from this emulsifying device (6) via the discharge nozzle (7). Steam is feedable into the emulsifying device (6) with which steam the milk conducted through the emulsifying device (6) is able to be heated up and/or frothed up. The further line (5) consists of a flexible tube which is placed in a peristaltic pump (9). This peristaltic pump (9) is equipped with switching means (10) with which the peristaltic pump (9) is switchable from a closed pump state into an open pump state releasing the passage of the flexible tube (5). Milk of different temperatures or milk froth can be optimally dispensed using this device; in addition an optimal cleaning can be carried out.

Abstract: A coffee machine, particularly an espresso machine, comprising a brewing device (6) for producing and dispensing coffee via a coffee dispensing nozzle (11), as well as a hot water boiler (2) having a fresh water supply line (1) and a hot water line (10) coming out into a brewing chamber (5) of the brewing device (6), and a control unit (4). The coffee dispensing is controllable by said control unit (4). A heating element (13) is disposed on the hot water line (10) between the hot water boiler (2) and the brewing chamber (5), by means of which heating element the water flowing from the hot water boiler (2) into the brewing chamber (5) is able to be brought to brewing temperature. The brewing temperature can thereby be maintained at a virtually constant value whereby improving the quality of the coffee dispensed.

Abstract: A control panel (14) contains four control levers (18). A control valve having a valve slide (55) capable of sliding in a valve sleeve (79) is assigned to each control lever (18). An electric motor (68) on whose drive shaft (70) a bevel gear (64) is mounted in a rotationally solid manner is also provided for each control lever (18). The bevel gear (64) engages with another bevel gear (66) that is connected with a shaft journal (62) in a rotationally solid manner. A follower pin (72) is eccentrically mounted in the shaft journal (64); it passes through one end of a push rod (57) and projects into a groove (73) in a shaft journal (58) passed through by the assigned control lever (18). In this manner, the two shaft journals (58, 62) are connected with each other through the follower pin (72) in a rotational manner. The other end of the push rod (57) is connected through a coupling (75) with a piston rod (56) that is in turn fastened to the valve slide (55).