Abstract: A rotary seal arrangement has a rotatably mounted machine part and a machine part that forms a bearing for the rotatably mounted machine part. One of the machine parts forms a seal accommodating structure and the other one of the machine parts has a surface forming a sealing surface. At least one rotary seal is arranged in the seal accommodating structure. The rotary seal seals off a high-pressure area from a low-pressure area between the machine parts.

Abstract: A seal arrangement includes two machine components which are arranged so as to be able to be moved relative to each other along/about a movement axis, and having at least one resiliently deformable seal which is retained in a press-fitting manner on a seal retention structure on one of the two machine components. The seal forms a sliding guide for the two machine components, and has at least one sealing lip which is in sealing abutment with the other machine component in each case and which extends in an axial direction away from the seal retention structure. A free end portion of the sealing lip is supported by means of at least one resiliently deformable pretensioning element on one machine component in such a manner that the free end portion is in abutment with the other machine component with a defined contact pressure.

Abstract: In a U-cup based seal of a rod, the basic body of the U-cup 3 is recessed relative to a square cross-sectional shape in the region of a radially inner outer edge 18 on the low pressure side in order to obtain a space 17 between the U-cup 3 and the opening, i.e. the passage opening 16 of a sealing gap 15, leading into a rectangular groove 4 guiding the U-cup 3. This space 17 remains at least partially also upon pressurization such that the U-cup 3 complete remains in the groove 4 upon pressurization and is not extruded into the sealing gap 15. This considerably reduces wear of the U-cup 3. An inner surface 24 of the U-cup shows liquid dragging bore reliefs formed as recesses 25 in the inner surface 24 of the U-cup 3 for transferring hydraulic liquid, disposed on a surface of the translatory movable machine part 1, from a low-pressure side N of the U-cup to a high-pressure side H of the U-cup 3 upon translatory movement of the movable machine part 1.

Abstract: In a sealing system (1) between two mutually moving components (2, 3) for sealing a high pressure side (H) with respect to a low pressure side (N), a sealing configuration (9) is provided in a first annular groove (4) at the high pressure side and with one or more pressure relief elements (10a, 10b) being disposed in second annular grooves (14a, 14b) each pressure relief element (10a, 10b) having a second sealing ring (15a, 15b) with a flat pressure gradient. The hydrodynamic leak rate for each pressure relief element (10a, 10b) is chosen in such a fashion that a certain hydraulic pressure obtains in each intermediate region (Za, Zb).

Abstract: A rotary seal arrangement has a rotatably mounted machine part and a machine part that forms a bearing for the rotatably mounted machine part. One of the machine parts forms a seal accommodating structure and the other one of the machine parts has a surface forming a sealing surface. At least one rotary seal is arranged in the seal accommodating structure. The rotary seal seals off a high-pressure area from a low-pressure area between the machine parts.

Abstract: In a seal assembly (1) for sealing a high-pressure side (H) in relation to a low-pressure side (N) with at least one relief bore or relief channel (6) for pressure relief, a sealing ring (2) and at least one pre-stressing element (3) are arranged in a groove space (5) between two machine parts (4a, 4b) that can be displaced towards one another in a translatory manner, in such a way that the pre-stressing element (3) tensions the sealing ring (2) with both a radial force component (210) and an axial force component (220), and the sealing ring (2) lies against the second machine part (4b) and the groove flank (51) on the low-pressure side by means of defined contact surfaces (20, 22).

Abstract: In a U-cup based seal of a rod, the basic body of the U-cup 3 is recessed relative to a square cross-sectional shape in the region of a radially inner outer edge 18 on the low pressure side in order to obtain a space 17 between the U-cup 3 and the opening, i.e. the passage opening 16 of a sealing gap 15, leading into a rectangular groove 4 guiding the U-cup 3. This space 17 remains at least partially also upon pressurization such that the U-cup 3 complete remains in the groove 4 upon pressurization and is not extruded into the sealing gap 15. This considerably reduces wear of the U-cup 3. An inner surface 24 of the U-cup shows liquid dragging bore reliefs formed as recesses 25 in the inner surface 24 of the U-cup 3 for transferring hydraulic liquid, disposed on a surface of the translatory movable machine part 1, from a low-pressure side N of the U-cup to a high-pressure side H of the U-cup 3 upon translatory movement of the movable machine part 1.

Abstract: In a seal assembly (1) for sealing a high-pressure side (H) in relation to a low-pressure side (N) with at least one relief bore or relief channel (6) for pressure relief, a sealing ring (2) and at least one pre-stressing element (3) are arranged in a groove space (5) between two machine parts (4a, 4b) that can be displaced towards one another in a translatory manner, in such a way that the pre-stressing element (3) tensions the sealing ring (2) with both a radial force component (210) and an axial force component (220), and the sealing ring (2) lies against the second machine part (4b) and the groove flank (51) on the low-pressure side by means of defined contact surfaces (20, 22).

Abstract: In a sealing system (1) between two mutually moving components (2, 3) for sealing a high pressure side (H) with respect to a low pressure side (N), a sealing configuration (9) is provided in a first annular groove (4) at the high pressure side and with one or more pressure relief elements (10a, 10b) being disposed in second annular grooves (14a, 14b) each pressure relief element (10a, 10b) having a second sealing ring (15a, 15b) with a flat pressure gradient. The hydrodynamic leak rate for each pressure relief element (10a, 10b) is chosen in such a fashion that a certain hydraulic pressure obtains in each intermediate region (Za, Zb).

Abstract: A high-pressure sealing arrangement is provided for sealing a gap (26) between two concentric machine parts (4, 5) which can be moved relative to each other, of which a first machine part (4) comprises a groove (3) and a second machine part (5) comprises an outer peripheral surface (7) opposite the groove (3). A sealing ring (1) of an extrusion-resistant material and a tensioning ring (2) of an elastomeric material are provided in the groove (3). A shaped section of the sealing ring (1) on the low-pressure side can be deflected towards the outer peripheral surface (7) under fluid pressure load. When the pressure decreases, the pressure-dependent deflection of the sealing ring (1) automatically returns towards the initial, unpressurized state of the sealing ring (1).

Abstract: Disclosed is a method for determining a pixel gray scale value image, particularly for a multi-dimensional image system. According to said method a first modulation signal (M1) which is emitted at the emitting end and is reflected on an object that is to be recorded is correlated with a second modulation signal (M2) and is recorded at the receiving end based on at least two correlation signals (Ua, Ub or Ia, Ib) that are proportional to the respective received first modulation signal (M1). One of said modulation signals (M1, M2) is phase shifted in several phase steps (?k) at the emitting or receiving end and a differential signal (D) is determined for each phase step (?k) based on the correlation signals (Ua, Ub or Ia, Ib,) and a pixel gray scale value (PGray) is determined based on said difference signal (D) independently of interfering signals.

Abstract: Disclosed is a method for determining a pixel gray scale value image, particularly for a multi-dimensional image system. According to said method a first modulation signal (M1) which is emitted at the emitting end and is reflected on an object that is to be recorded is correlated with a second modulation signal (M2) and is recorded at the receiving end based on at least two correlation signals (Ua, Ub or Ia, Ib) that are proportional to the respective received first modulation signal (M1). One of said modulation signals (M1, M2) is phase shifted in several phase steps (?k) at the emitting or receiving end and a differential signal (D) is determined for each phase step (?k) based on the correlation signals (Ua, Ub or Ia, Ib,) and a pixel gray scale value (PGray) is determined based on said difference signal (D) independently of interfering signals.

Abstract: A method is described for detecting brightness signals from a multiplicity of light-sensitive sensor elements, in particular CCD lines or arrays, in which the brightness signals are amplified in such a way that an A/D converter which digitizes the amplified brightness signals works in its permissible working range. For the brightness signal of a predetermined sensor element, the gain is reduced in steps, preferably in binary steps, from a maximum gain factor down to a working value at which the A/D converter works in the permissible working range. For each following sensor element, the working value of the respective preceding sensor element is used as the maximum gain factor. The number of changeover operations of the amplifier is considerably reduced and thus the detection time is shortened.

Abstract: A high-pressure sealing arrangement is provided for sealing a gap (26) between two concentric machine parts (4, 5) which can be moved relative to each other, of which a first machine part (4) comprises a groove (3) and a second machine part (5) comprises an outer peripheral surface (7) opposite the groove (3). A sealing ring (1) of an extrusion-resistant material and a tensioning ring (2) of an elastomeric material are provided in the groove (3). A shaped section of the sealing ring (1) on the low-pressure side can be deflected towards the outer peripheral surface (7) under fluid pressure load. When the pressure decreases, the pressure-dependent deflection of the sealing ring (1) automatically returns towards the initial, unpressurized state of the sealing ring (1).

Abstract: Processes for determining whether a test substance contains lipases or lipase inhibitors are provided. Processes for determining the activity of lipases or lipase inhibitors are also provided. Furthermore, processes for the preparation of micelle or vesicle substrates comprising monoacylglyceride having a fluorescent label are described.

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: An apparatus for removing skin from the bodies of body parts of slaughtered poultry is described. The apparatus comprises a skin entraining means (2) having a non-skid or "gripping" outer surface (13) and a pressing means (4) with a knife (3), which is arranged spaced from the outer surface (13) by a gap. An auxiliary conveying means is located above the knife (3) which consists of at least one rotary member (19, 20) driven in the opposite sense to the skin entraining means (2) and has a protruding helical web (21, 22) around its circumference.

Abstract: A sealing device is arranged in a groove between a first machine component and a second machine component. If the sealing device, comprising the sealing ring and the biasing element, is subjected to a hydraulic pressure from the high pressure side and/or should an axial motion of a machine component take place, the sealing ring pivots towards the low pressure side in such a fashion that an angle .alpha. is reduced and an angle .beta. is increased. Through this pivoting effect a sealing edge is formed. Thereby a wedge-shaped gap forms between the peripheral surface and the surface of the sealing ring lying across therefrom, the gap being open towards the low pressure side.