[Frohs, Wilhelm, Dr., Brehler, Klaus-Peter, Dr., Heine, Michael, Dr.] Rheingaustrasse 182, 65203 Wiesbaden, DE

[FROHS DR WILHELM, BREHLER DR KLAUS-PETER, HEINE DR MICHAEL] DE

[FROHS WILHELM DR, BREHLER KLAUS-PETER DR, HEINE MICHAEL DR] DE

[FROHS WILHELM, BREHLER KLAUS-PETER, HEINE MICHAEL] DE

[BECKER, Markus, K., FROHS, Peter, MARCINKOWSKI, Maik, HOLZAPFEL, Michael, BACHMANN, Michael, JAROS, Michael] St. Pöltener Str. 43, 89522 Heidenheim, DE

[FROHS, Peter, SOKOLOW, Anton] Sankt Pöltener Straße 4389522 Heidenheim The invention relates to a vibration absorber (1) for damping rotational vibrations, comprising a spring element (3) and an absorber mass (30), wherein the absorber mass (30) is operatively connected to the spring element (3). At least one leg spring (10) comprising a first leg (12) and a second leg (14) is provided as the spring element (3). The first leg (12) is non-rotatably joined to the absorber mass (30) . Torsional vibrations acting on the second leg (14) can be transmitted by means of the leg spring (10) to the absorber mass (30). The invention relates to a vibration absorber (1) for damping rotational vibrations, comprising a spring element (3) and an absorber mass (30), wherein the absorber mass (30) is operatively connected to the spring element (3). At least one leg spring (10) comprising a first leg (12) and a second leg (14) is provided as the spring element (3). The first leg (12) is non-rotatably joined to the absorber mass (30) . Torsional vibrations acting on the second leg (14) can be transmitted by means of the leg spring (10) to the absorber mass (30).

[FROHS WILHELM, BREHLER KLAUS-PETER DIPL CHEM, HEINE MICHAEL] <P>PROBLEM TO BE SOLVED: To provide highly heat resistant linking parts for electrode capable of withstanding to a graphitization process at ≥3000°C and method for producing the same by including carbon fibers activated by oxidation into the linking parts comprising carboneceous materials, applying a carbonated coating on the surface of the carbon fibers. <P>SOLUTION: The method for producing the linking parts comprises following steps, a first step activating the surface of the carbon fibers by oxidation, a second step forming a surface coating containing coating material comprising wax, pitch, natural resin, thermoplastic polymer or duroplastic polymer on the fiber, a third step carbonizing the coating at 750-1,300°C, a 4th step mixing the product with cokes having an average particle diameter of 0.05-4mm or pitch having softening temperature of 70-150°C and other additives in some case, and molds into a cylindrical body, a 5th step carbonizing and succeedingly graphitizing the cylindrical body, and a 6th step processing the graphitized formed body by a lathe into the linking parts having a screw groove. <P>COPYRIGHT: (C)2005,JPO&NCIPI

[FROHS WILHELM, BREHLER KLAUS-PETER, HEINE MICHAEL] DE Connecting pieces for carbon material electrodes, characterized in that the connecting pieces contain oxidatively activated carbon fibres which additionally have a carbonized coating, the carbonized coating being the carbonization product of a coating material selected from wax, pitch, natural resins, thermoplastic and thermosetting polymers, and processes for the production thereof.

[Markus Becker, Peter Frohs] DE Heidenheim A torsionally elastic clutch is provided including a primary part and a secondary part connected to transfer torque, and including an elastic connecting member having a first attachment surface placed externally in the radial direction of the clutch, and a second attachment surface placed internally in the radial direction of the clutch, connected to transfer torque with the primary part and the other with the secondary part, the two attachment surfaces are displaced relative to each other in the axial direction of the clutch, and further including a tensioning device, which maintains the relative displacement of the two attachment surfaces. An axial bearing is provided between the primary part and the secondary part, which permits a relative twisting in the circumferential direction of the clutch between the primary part and the secondary part, and additionally the tensioning device applies a compressive stress to the axial bearing.

[BECKER, Markus, FROHS, Peter] Centrumstrasse 2, 45307 Essen, DE