Abstract: Method for producing a long coffee extract from a capsule in a coffee machine comprising: providing a capsule containing a predetermined dose of roast and ground coffee and the machine supplying hot water within the capsule, extracting liquid coffee extract from the capsule by rotating the capsule about its central axis in the machine for centrifuging and extracting the liquid coffee extract towards the periphery of the capsule while the machine continuing supplying hot water, the machine collecting the liquid coffee extract from the capsule and dispensing the coffee extract in a receptacle; wherein the liquid coffee extract is formed with coffee foam (i.e.

Abstract: For the purpose of attaching the frame (1) to the tank (6), the tank (6) has on the outer side niches (18) which are widened inwardly. Opposite each of the niches (18) the frame (1) has an opening (4). Connecting members (9) are each snapped into an opening (4) and engage at an inner end into a niche (18). Wedges or pins (10) driven into a recess (13) fix a tenon (17) engaging the niche (18) from behind. Simple and automatable operations suffice for the installation.

Abstract: A double pipe connection is provided having a one-piece gasket (5), which extends sealingly into an intermediate space (1c) of one pipe end (1a) with an internal, transversely extending wall (5c), on one hand, and, also sealingly surrounds a partition (2c) of the other pipe end (2a), on the other hand. The two pipe ends (1a and 2a) are inserted into each other in the axial direction, and are held together with a locking bar (6) in a positive-locking manner. The cross section of the pipe connection may be non-round, e.g., rectangular. Since the pipe ends have no flanges and outer threads, they may be cut to any length, and shaping suitable for injection molding is possible. The double pipe connection is particularly suitable for liquid-bearing pipes on sanitary devices, e.g., drain fittings for wash stands.