Abstract: A sealing sleeve for sealing between piston and cylinder wall in internal combustion engines with a height in the direction of piston movement that is at least three times as large as its width in the radial direction of the cylinder having a pressurised annular cut out (6 in FIG. 2) in that outer surface of it that contacts the cylinder wall.
Abstract: A sealing sleeve is disclosed for sealing between piston and cylinder wall in internal combustion engines. In at least one embodiment, it includes a height in the direction of piston movement that is at least three times as large as its width in the radial direction of the cylinder. Further, it includes a pressurized annular cut out.
Abstract: Vacuum cleaner nozzle equipped with an air inlet which opens when the nozzle is lifted by its handle. When the nuzzle gets stuck in something it can be lifted by its handle whereby the air inlet opens, air is let in, the suction decreases and the nozzle gets unstuck.