Patents by Inventor Karl-Heinz Roess
Karl-Heinz Roess has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 6974003Abstract: A combined spring/damper system for the support of wheel suspensions or axles on a vehicle body, with a tubular concertina which is mounted between an outer bell and a rolling piston and the meniscus of which is guided on a cylindrical inner-wall region of the outer bell and a cylindrical outer-wall region of the rolling piston. The outer bell or the rolling piston of the displacer is supported between the vehicle body and the chassis in at least one articulated support. The concertina space is filled with a fluid and communicates with a hydraulic accumulator mounted on the chassis side or on the vehicle-body side. Thus, a combined spring/damper system is provided, which includes a low-friction and virtually maintenance-free displacer.Type: GrantFiled: November 11, 2000Date of Patent: December 13, 2005Assignee: DaimlerChrysler AGInventors: Bernd Acker, Peter Goennheimer, Hans-Peter Klander, Darko Meljnikov, Matthias Roemer, Karl-Heinz Roess, Ruediger Rutz, Martin Winkler
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Patent number: 6817597Abstract: A combined spring-and-shock-absorber system for supporting wheel suspensions or axles on a vehicle body has a tubular roll bellows (U-bellows) arranged between a wheel-bearing or wheel-controlling connection and a connection on the vehicle body side, the bellows being arranged between an outer bell and a rolling piston, the outer bell and the rolling piston, in each case, having at least partially varying diameters over the height of the corresponding component, and having walls that contact the tubular roll bellows. Both ends of the tubular roll bellows being sealingly secured on the rolling piston at segments having different diameters, the lower mounting section having a larger diameter than the upper mounting section. For this purpose, a tubular roll bellows is used, which is configured as a differential roll bellows, whose interior is filled with a fluid and communicates with a hydraulic accumulator supported on the chassis and/or vehicle body.Type: GrantFiled: June 24, 2002Date of Patent: November 16, 2004Assignees: DaimlerChrysler AG, ContiTech Luftfedersysteme GmbHInventors: Gerhard Thurow, Martin Winkler, Bernd Acker, Christoph Bank, Paul Cerny, Peter Gönnheimer, Hans-Peter Klander, Darko Meljnikov, Matthias Römer, Karl-Heinz Röss, Rüdiger Rutz
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Patent number: 6328834Abstract: A process for producing bodies made of fiber-reinforced composites from fiber-reinforced precursor bodies having a porous carbon matrix, in particular from C/C bodies, includes (1) mixing fibers, fiber bundles or fiber agglomerates based on carbon, nitrogen, boron and/or silicon with at least one carbonizable binder to give a pressing composition, and (2) pressing the pressing composition to form a green body. At least one metal- or silicon-containing core is added to the green body. The green body is subsequently pyrolysed to convert the binder or binders into a porous carbon matrix, and the resulting fiber-reinforced precursor body is infiltrated with molten metal or silicon from the metal- or silicon-containing core.Type: GrantFiled: August 2, 1999Date of Patent: December 11, 2001Assignee: DaimlerChrysler AGInventors: Kolja Rebstock, Karl-Heinz Roess
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Patent number: 6302246Abstract: A brake unit comprising at least one brake and at least one brake pad having at least one friction lining is described. The brake has a disk brake with a brake rotor made of a ceramic-metal composite (CMC) whose outer surface or surfaces at least partially form a friction surface for the at least one friction lining, and a disk brake cup that is mounted on the disk brake by way of one or more mounting elements. The friction surface of the disk brake has a hardness of approximately 1600 to 2500 HV, and the at least one friction lining has a coefficient of friction of approximately 0.3 to 0.5. The disk brake cup and/or the mounting elements form a corrosion-inhibiting attachment to the disk brake. The brake unit can be operated in corrosion-free fashion over a service life of at least approximately eight to 10 years or approximately 200,000 to 300,000 km.Type: GrantFiled: December 23, 1999Date of Patent: October 16, 2001Assignee: DaimlerChrysler AGInventors: Emil Näumann, Kolja Rebstock, Hans-Georg Riedel, Karl-Heinz Röss, Stephan Wolfsried
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Patent number: 6287500Abstract: A method for manufacturing a brake rotor which includes a disc-shaped carrier and friction rings arranged on or on top of the carrier, so that the friction rings and carrier form a single piece construction. The carrier and friction ring(s) are separately molded into pre-forms, subsequently joined and finished formed in a press tool. The carrier and friction rings are made from carbon/carbon materials and ceramic materials respectively. The carrier has a hat-shaped cross-sectional shape with a flanged outer edge and the friction rings are attached to each side of the flanged edge of the carrier. The brake rotor may be directly mounted onto the wheel flange via the carrier using bolts.Type: GrantFiled: June 15, 2000Date of Patent: September 11, 2001Assignees: DaimlerChrysler AG, SGL Carbon Composites, Inc., HitcoInventors: Dino Militello, Manfred Roessler, Ruediger Lichnofsky, Tilmann Haug, Emil Naeumann, Karl-Heinz Roess, Andreas Soens, Detlef Sokolowsky, Claus-Peter Weidner
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Patent number: 6153988Abstract: An arrangement for operating a brake of a vehicle has a controllable operating electric motor and a conversion device for converting the rotational movement of the operating electric motor into a translational movement of one or several brake element(s) which are in an operative connection with the conversion device. At least one additional electric motor is provided which can be controlled separately of the operating electric motor and has at least one additional conversion device for converting the rotation of the at least one additional electric motor into a translational movement of the brake element(s) which is independent of the translational movement caused by the operating motor and its conversion device.Type: GrantFiled: September 23, 1998Date of Patent: November 28, 2000Assignee: DaimlerChrysler AGInventors: Gregor Reimann, Karl-Heinz Roess
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Patent number: 6142265Abstract: An arrangement for operating a brake of a vehicle has at least one controllable electric motor and at least one conversion device for converting the rotational movement of the electric motor into a translational movement of one or several brake element(s) operatively connected with the conversion device. The conversion device has two sloped disks which are arranged coaxially with respect to the electric motor, and whose first sloped disk can be caused to carry out a rotating movement by way of a step-down gear driven by the electric motor and whose second sloped disk, by way of roller bodies arranged between the two sloped disks, is axially displaceable by a rotating movement of the first sloped disk.Type: GrantFiled: September 23, 1998Date of Patent: November 7, 2000Assignee: DaimlerChrysler AGInventors: Gregor Reimann, Karl-Heinz Roess
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Patent number: 6119827Abstract: A brake rotor includes a disc-shaped carrier and friction rings arranged on or on top of the carrier, so that the friction rings and carrier form a single piece construction. The carrier and friction rings are made from carbon/carbon materials and ceramic materials respectively. The carrier has a hat-shaped cross-sectional shape with a flanged outer edge and the friction rings are attached to each side of the flanged edge of the carrier. The brake rotor may be directly mounted onto the wheel flange via the carrier using bolts.Type: GrantFiled: June 12, 1998Date of Patent: September 19, 2000Assignees: DaimlerChrysler AG, SGL Carbon Composites, Inc., HitcoInventors: Dino Militello, Manfred Roessler, Ruediger Lichnofsky, Tilmann Haug, Emil Naeumann, Karl-Heinz Roess, Andreas Soens, Detlef Sokolowsky, Claus-Peter Weidner
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Patent number: 6098762Abstract: A brake actuator includes an electric motor, a conversion device for converting the rotational movement of the electric motor into a linear movement and a hydraulic transmission for transmitting the linear movement of the conversion device to an adjusting piston of a brake. The conversion device includes at least two adjusting elements which can be driven by the electric motor and by way of which the at least two hydraulic pistons of the hydraulic transmission can be operated independently of one another in a hydraulic chamber which can be selectively connected with a reservoir.Type: GrantFiled: September 23, 1998Date of Patent: August 8, 2000Assignee: DaimlerChrysler AGInventors: Gregor Reimann, Karl-Heinz Roess
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Patent number: 6056090Abstract: A brake actuator comprises an electric motor, a conversion device for converting the rotational movement of the electric motor into a linear movement and a hydraulic transmission for transmitting the linear movement of the conversion device to an adjusting piston of a brake. The hydraulic transmission comprises at least two hydraulic pistons which independently of one another can be axially displaced in a hydraulic chamber, whose first hydraulic piston by way of a first driving element of the conversion device can be operated directly by the electric motor and whose second hydraulic piston can be operated by way of second driving element of the conversion device which can be taken along by a controllable clutch element by the first driving element.Type: GrantFiled: September 23, 1998Date of Patent: May 2, 2000Assignee: DaimlerChrysler AGInventors: Gregor Reimann, Karl-Heinz Roess