Patent ID: 7614424

Claim:
A sanitary fitting having a base unit and a telescopic outflow conduit system, the telescopic outflow conduit system comprising: an inner tube; and an outer tube, which can be displaced telescopically relative to the inner tube by a displacement distance, one of these tubes being a throughflow tube which is retained on the base unit and the other being an outflow tube with a water-outflow opening arranged at an end which is directed away from the base unit, wherein the throughflow tube is in fluid communication with a sanitary water supply to receive water therethrough, the inner tube having a closed tube end at one end, and the inner tube having at a spacing from the closed tube end which corresponds at least to the displacement distance, a radial through-passage which connects the interior of the inner tube on a permanent basis to a lateral space, which is bounded by the inner tube and outer tube and has a constant volume, the outer tube having a cylindrical guide recess in which the closed tube end of the inner tube is arranged in a displaceable manner, and a sliding seal fixedly arranged on the inner tube at the closed tube end at a fixed distance from the radial through-passage, the sliding seal allowing relative movement of the cylindrical guide recess and preventing water from flowing through between the wall of the guide recess and the inner tube.