Abstract: A configuration for sealing a gap 38 between two mutually concentric machine parts 31, 36 which move relative to each other exhibits a sealing ring 10 in the groove 32 which is mounted in spatially fixed fashion in machine element 31. The machine element 36 moves relative to the machine element 31. The sealing ring 10 in accordance with the invention is flexible in response to radial and axial forces acting on the sealing ring. The pressure dependent deformation of the sealing ring 10 is reversible, i.e. the sealing ring 10 automatically returns to its original shape for decreased fluid pressure on the high pressure side H.

Abstract: A rubber elastic sealing ring 13 is arranged between two concentric machine parts 11, 12 moved towards each other. The sealing ring 13 has a surface 22 that on the one hand ends in a dynamic sealing edge 21 and on the other hand extends to the low pressure side N. In addition, an outer peripheral surface 25 of the sealing ring 13 is inclined towards the bottom 18 of the groove in the non-compressed state of the sealing ring 13. Imaginary planes 35, 36 extend through the ring-shaped conical surfaces 22, 25. The imaginary planes 35, 36 are also conical ring-shaped surfaces that form an intersection line 37. The intersection line 37 is always located between one plane 34 (ring-shaped surface) and the peripheral surface 15 of the second machine part 12.

Abstract: The invention concerns a sealing valve for apertures in containers, the valve comprising a cover element and, running round the edge of the cover element and integral with it, a wall element. In one application of the valve as a gas-release valve for accumulators, the valve (20) is shaped like a cap and has a beading (24) with a sharply projecting sealing edge running round the inside of the cap wall. On the inside of the cap are control channels (25, 25', 25") which extend from the top of the cap to the beading (24) and allow the pressure at which gas is released from the accumulator to be set within a given range.