Abstract: The autoclave includes a sterilization chamber (2) to receive articles to be sterilized, which are used in medical treatment. With a door (1) the sterilization chamber (2) can be locked shut. Placed on top is a control unit (6) including a control panel (9) with control elements (10) and a card reader (11). Disposed above the control panel is an indicator panel (12) for displaying in particular device data and for guiding the user by means of an LCD. Using chip cards, which have an electronic component with a non-volatile memory, and which can be electrically connected to the card reader permitting data exchange with the control unit, special sterilization programs can be run, the authorization to use the autoclave can be checked, and further functions, such as blocking or enabling individual control elements, can be executed.

Abstract: A coffee machine is provided having a housing containing removable first and second modules. The first module includes removably connected first and second submodules. The first submodule includes a brewing device. The second submodule includes a motor, a driving axle, gears for coupling the driving axle to the motor, and a further housing enclosing the motor and gears such that the driving axle extends through the housing and establishes a functional connection with said brewing device. The operational ability of the first module, when removed from the housing, can be checked because the means for supplying driving energy to the motor remains connected to the motor. For cleaning, the first submodule can be removed from the second submodule once electrical and liquid lines have been disconnected.

Abstract: An ejection device includes an ejection part (17) which is swivelingly fastened to a brewing cylinder (9) displaceably disposed along a parallel driving spindle (6), and a nose (22) disposed on a sidewall (2) of a frame (1). Mounted within and closing a cylindrical bore of the brewing cylinder are first and second pistons. The second piston (8) is, upon a downwardly movement of the brewing cylinder (9) away from the first piston, displaceable to a first or upper end of the brewing cylinder. Ground coffee (40) pressed into a cake is conveyed out of the brewing cylinder (9) during this displacement movement and rests upon a cambered end face (42) of the second piston (8). The ejection part (17) includes two rocking levers (18, 19) which extend at the sides of the brewing cylinder (9) longitudinally thereto and are swivelingly mounted in a lower region of the brewing cylinder (9) about a swivel axis (23). Ends of the rocking levers (18, 19) remote from the swivel axis are connected to an ejection plate (20).

Abstract: The brewing device comprises a brewing cylinder (9) with a cylindrical bore (10), in which a lower piston (8) is disposed freely moveable and longitudinally displaceable. An upper piston (7) is rigidly connected to a frame (1). Parallel to the vertically disposed brewing cylinder (9) there is a drive spindle (6) which has guide means (23). A drive element (24) connected to the brewing cylinder has further guide means (25) which engage with those of the drive spindle (6). By rotating the drive spindle (6) in one or the other direction, the brewing cylinder is displaced upwards or downwards. Through a pivotable hopper (12), the coffee powder is filled into the brewing cylinder.

Abstract: A brewing apparatus has a brewing cylinder (1) with a cylindrical bore (2) and two pistons (3, 4). The brewing cylinder (1) and the pistons (3, 4) are disposed displaceably relative to one another. In a brewing position the brewing cylinder (1) and the two pistons (3, 4) within the latter form a brewing chamber (5) in order to scald ground coffee therein through the feed of pressurized water. This water is fed to the brewing chamber (5) via a connection fitting (18) and via a through bore which extends through the wall of the brewing cylinder (1), into an annular gap (14) which is formed between a gasket (11) and the end face (13) of the second piston (4) facing the brewing chamber (5). Via a strainer (32), a conduit (34), and a further connection fitting (35), the coffee is discharged. Through the arrangement of the gap (14), the face (13) of the second piston ( 4) can be made without a strainer. The feeding of pressurized water to the gap (14) causes a self-cleaning effect in the latter.