Patents Assigned to Mannesmann AG
  • Publication number: 20010025224
    Abstract: A method of providing information to a terminal of a user includes transmitting the information via a telecommunication network channel and displaying the information as a screensaver on a terminal display.
    Type: Application
    Filed: February 16, 2001
    Publication date: September 27, 2001
    Applicant: Atecs Mannesmann AG
    Inventors: Hans-Gunter Schneider, Josef Heimann
  • Patent number: 6293415
    Abstract: A railborne mobile crane mounted on a chassis with a superstructure, a counterweight and a boom which are arranged so as to be swivelable about a vertical axis of the superstructure. The superstructure is contoured so as to be within a prescribed clearance gauge of a section of track. The superstructure is outfitted with a device to compensate for superelevations of curved track sections. Longitudinal sides and a rear side of the superstructure are arranged so that, in every swiveling position, all contours of the superstructure lie within a defined safety area. The safety area is bounded on each of two sides of a longitudinal axis of the crane by an inclined plane which is inclined inward from the vertical, proceeding from a lower edge of the superstructure, by an angle of inclination at least corresponding to a maximum allowable angle of superelevation of the track.
    Type: Grant
    Filed: November 30, 1998
    Date of Patent: September 25, 2001
    Assignee: Mannesmann AG
    Inventor: Urban Franzke
  • Patent number: 6292742
    Abstract: Condensing of information is achieved by a terminal device, a traffic center and a method for informing a user of a terminal device about the traffic situation in a traffic network using traffic information transmitted from a traffic center to the terminal device over a communications channel. Traffic information relating to at least one section in the traffic network is converted to information relating to zone in the traffic network, and zone-oriented traffic information is displayed to the user of the terminal device.
    Type: Grant
    Filed: August 6, 1999
    Date of Patent: September 18, 2001
    Assignee: Mannesmann AG
    Inventors: Josef Heimann, Werner Schulz, Stefan Vieweg
  • Patent number: 6290788
    Abstract: A process for producing precision steel tubes includes cold forming tube blanks, in particular in a plurality of forming steps, with or without an internal tool. In this process, a tube blank made from interstitial free IF steel is used as the starting material.
    Type: Grant
    Filed: February 8, 1999
    Date of Patent: September 18, 2001
    Assignee: Mannesmann AG
    Inventors: Ronald Claus, Jürgen Wiete, Rüdiger Hahn, Stefan Meimeth
  • Publication number: 20010020542
    Abstract: A motor cable for supplying power to a motor from an Insulated-Gate Bipolar Transistor (IGBT) converter with high switching speeds has reduced leakage current in the motor cable and in the motor by including a sheath comprising a ferromagnetic material for enclosing the electrically conducting leads of the cable.
    Type: Application
    Filed: December 15, 2000
    Publication date: September 13, 2001
    Applicant: Atecs Mannesmann AG
    Inventor: Volker Schuren
  • Publication number: 20010020558
    Abstract: The invention relates to a hydraulic steering device for the chassis of a vehicle, in particular of a crane or transport vehicle, with chassis axles steerable between longitudinal and transverse drive positions and in each case fixed to a shaft on the vehicle that is pivoted about a vertical swiveling axle, on which shaft a steering cylinder acts by way of at least one laterally projecting control arm for swiveling of the shaft. The steering cylinder acting on the projecting control arm and a further steering cylinder acting on a vehicle frame beam are articulated to a lever arm, coaxially pivoted on the shaft, in such a way that the torsional movement of the shaft resulting from the retracting and extending movement of the two steering cylinders adds up to at least ±90°.
    Type: Application
    Filed: March 2, 2001
    Publication date: September 13, 2001
    Applicant: Atecs Mannesmann AG
    Inventors: Hermann Franzen, Joachim Kroll, Janis Moutsokapas
  • Patent number: 6286816
    Abstract: A chain hoist, includes a chain which is trained over first and second sprockets defining a movement path for the chain, with the first sprocket being connected to a load-bearing member, and with the second sprocket being part of a drive unit for operating the chain. In order to effectively prevent chain vibrations caused by the so-called polygon effect, the chain hoist includes a damping unit which is positioned in the movement path of the chain for damping vibration.
    Type: Grant
    Filed: October 21, 1999
    Date of Patent: September 11, 2001
    Assignee: Mannesmann AG
    Inventors: Karl Liebig, Oliver Moll, Michael Schubert
  • Patent number: 6276216
    Abstract: A force gage for measuring a tensile force in a pneumatically-operated device, includes a parallelogram linkage having a pair of longitudinal arms in spaced-apart parallel disposition, and a pair of transverse arms in spaced-apart parallel disposition and hingedly interconnecting the longitudinal arms, with a first one of the longitudinal arms being acted upon by a tensile force and movable by the tensile force in the direction of the tensile force, whereby the pair of longitudinal arms is oriented in a direction parallel to the tensile force. A probe is positioned between the transverse arms and securely fixed to a second one of the longitudinal arms for generating a pneumatic pressure signal commensurate with the tensile force. The probe has a casing and a sensing element which projects out of the casing and is acted upon in dependence on the tensile force by a force-applying structure which may be either the first longitudinal arm or one of the transverse arms.
    Type: Grant
    Filed: November 29, 1999
    Date of Patent: August 21, 2001
    Assignee: Mannesmann AG
    Inventors: Wolfgang Bittenbinder, Robert Kühn
  • Publication number: 20010011470
    Abstract: The invention relates to a process for producing pipes, especially large pipes, as per the UOE process, wherein the pipes, after internal and external seam welding, are incrementally calibrated by cold expansion up to half the pipe length. The cold expansion is also used for straightening. For this purpose, the pipe is clamped at the shortest possible distance in front of the expander head, the free pipe end is flexibly deformed, and the pipe is then cold expanded in a known manner. The prestress force thereby decreases and then, after the release of the clamping and the remaining prestress, the pipe moves incrementally by the amount of the expander step width, up to half the pipe length. The process is then repeated for the second pipe half.
    Type: Application
    Filed: April 3, 2001
    Publication date: August 9, 2001
    Applicant: Mannesmann AG
    Inventors: Johannes Gross-Weege, Detlef Ramdohr
  • Publication number: 20010010874
    Abstract: A fuel cell system which has a fuel cell is described. Also provided is a device for producing/preparing the fuel, for example hydrogen, which is connected on its outlet side to a fuel supply line and on its inlet side to a device for supplying fuel. The device for supplying fuel has a dual pump, in which a starting material for the fuel, stored in the motor-fuel tank, and water fed in via a water supply line, which is for example process water produced during the fuel cell process, are mixed to form a fuel/water mixture. This fuel/water mixture is intermediately stored in an intermediate tank before it is fed to the device for producing/preparing the fuel.
    Type: Application
    Filed: November 30, 2000
    Publication date: August 2, 2001
    Applicant: Atecs Mannesmann AG
    Inventors: Wolfgang Herdeg, Holger Klos, Martin Sattler, Franz Reichenbach, Sabine Hess, Hans-Dieter Wilhelm, J?uuml;rgen Habrich, Karl Eck, Thomas Zapp
  • Patent number: 6266607
    Abstract: A suitable selection of information sent by a central traffic station with respect to its relevance for a route of a vehicle with a terminal unit through the traffic network is made possible by a terminal unit and by a process for the selection of traffic information which is relevant to a route of a vehicle in a traffic network, which vehicle has a terminal unit, and which is transmitted by a central station. The route is determined in the form of path points between a starting point and a destination in the traffic network. A zone is defined for the selection of relevant traffic information between two path points. Traffic information concerning a location in the zone is selected as relevant, while traffic information concerning a location outside of the zone is defined as irrelevant.
    Type: Grant
    Filed: July 13, 1999
    Date of Patent: July 24, 2001
    Assignee: Mannesmann AG
    Inventors: Josef Meis, Andreas Parra, Peter Stangier
  • Patent number: 6260891
    Abstract: A press fitting for producing a nondetachable tight connection of smooth-ended pipes which has at least one portion receiving a toroidal sealing element and an adjoining cylindrical area extending in the longitudinal direction, and is provided with a shoulder acting as a stop for the pipe which can be pushed in or pushed on. The sealing element has, in the circumferential direction, at least one portion which is provided with a cross section diverging from the starting cross section in that a bulge extends along the circumference and along the cross-sectional plane and a recess facing the pushed in pipe extends radially in the cross section of the sealing element, the volume of the bulge compared with the starting cross section is at least equal to the volume of the recess lacking at the starting cross section and, before pressing, the recess of the sealing element forms a through-opening in the axial direction viewed in cross section.
    Type: Grant
    Filed: November 29, 1999
    Date of Patent: July 17, 2001
    Assignee: Mannesmann AG
    Inventors: Herbert Foering, Rainer Franzen, Thomas Gigowski
  • Patent number: 6260740
    Abstract: The invention relates to a process and a device for controlling the flow dispersion of a molten metal, in particular steel, which is conveyed from a melt container via a first immersion outlet part which has a polygonal, oval or circular cross-section, and an intermediate member through the second immersion outlet part which has an elongate cross-section, and flows into a stationary mold to produce slabs. The process is characterized by the following steps: (a) the central volume flow is reduced in the intake region of the second outlet part; (b) at the same time the angle of expansion (&dgr;) of the fluid jet is increased to such an extent that the return flow in the lateral region of the intermediate member and the second immersion outlet part is substantially stopped; and (c) when the melt leaves the second immersion outlet part, it flows at a velocity profile with velocity vectors which are smaller in the opening center than the regions of the small faces.
    Type: Grant
    Filed: January 12, 1999
    Date of Patent: July 17, 2001
    Assignee: Mannesmann AG
    Inventors: Hans-Jürgen Schemeit, Ulrich Urlau
  • Patent number: 6255963
    Abstract: The redundancy of transmitted traffic information or of traffic information which is to be transmitted is optimized by a method for transmitting traffic information from a traffic information center to at least one terminal device in a vehicle via a publicly receivable (e.g., DAB, RDS-TMC) communications channel or via a private communications channel (e.g., mobile radio), wherein a first reference zone is defined at or around the known or presumed stopping place of at least one vehicle to which information is to be conveyed at a first time point. At least a second reference zone is defined at or around at least one presumed stopping place of the vehicle at a second time point lying in the future in relation to the first time point. Traffic information generated for a reference zone and for a respective future time point with forecasting and/or traffic information determined for the current time point and for the respective current reference zone are/is compiled.
    Type: Grant
    Filed: August 4, 1999
    Date of Patent: July 3, 2001
    Assignee: Mannesmann AG
    Inventors: Josef Heimann, Werner Schulz, Stefan Vieweg
  • Patent number: 6254680
    Abstract: The invention relates to an apparatus for coating a metal strip passed through a container which holds the melted coating material. A channel is connected to the container which encloses the material in the form of a strip beneath the melt bath level. Channel currents are induced in the coating material by means of inductors and cause an electromagnetic force in order to hold the coating material back. The channel is attached to the base of the container such that it is easily detachable and comprises a plurality of parts which can be separated in the strip running direction, are sealed with respect to one another and can individually be moved away from the strip, transversely with respect to the strip running direction, to replace the channel with the strip located in it, after releasing the separation connection.
    Type: Grant
    Filed: February 9, 1999
    Date of Patent: July 3, 2001
    Assignee: Mannesmann AG
    Inventors: Aribert Fligge, Klaus Frommann, Walter Ottersbach
  • Patent number: 6253596
    Abstract: The invention relates to a process for producing pipes, especially large pipes, according to the UOE process, wherein a pipe, after internal and external seam welding, is incrementally calibrated by cold expansion up to half the pipe length. The cold expansion is simultaneously used for straightening. For this purpose, the pipe is clamped at the shortest possible distance in front of an expander head, the free pipe end is flexibly deformed, and the pipe is then cold expanded in a known manner. The prestress force thereby decreases and then, after the release of the clamping and the remaining prestress, the pipe moves incrementally by the amount of and expander step width, up to one half of the pipe length. The process is then repeated for the second half of the pipe.
    Type: Grant
    Filed: July 21, 1998
    Date of Patent: July 3, 2001
    Assignee: Mannesmann AG
    Inventors: Johannes Gross-Weege, Detlef Ramdohr
  • Patent number: 6256580
    Abstract: Comfortable navigation is made possible with a small amount of transmitted information by a terminal unit, a central station and a process for the transmission of route information completely defining a route of a vehicle in a traffic network, which route is suggested as a navigation aid, from a central traffic station to a terminal unit in the vehicle. The route information concerns path points located on the suggested route, wherein a path point is defined wherever it is recommended by the central traffic station that the vehicle turn off from a road. Additional information defining the next path point following in the driving direction of the suggested route is transmitted in addition to route information at a path point.
    Type: Grant
    Filed: June 16, 1999
    Date of Patent: July 3, 2001
    Assignee: Mannesmann AG
    Inventors: Josef Meis, Andreas Parra, Peter Stangier
  • Patent number: 6250435
    Abstract: An actuation device for machine elements having wear-induced play, especially for brakes in rail vehicles, has an actuating piston-cylinder unit which generates actuation force and has a piston rod. The piston rod cooperates with a readjusting device which compensates for play caused by wear and which supplies the actuation force to the machine element to be actuated such that wear play is compensated. The readjusting device comprises a hydraulic piston-cylinder unit which carries out the wear play readjustment through the extension of an adjusting piston. To actuate the adjusting piston, a sensor element detects the wear-induced play and, when a threshold amount of wear-induced play is reached, opens a valve which admits a hydraulic medium to the readjusting piston-cylinder unit by utilizing the operating pressure of the actuating piston-cylinder.
    Type: Grant
    Filed: November 24, 1999
    Date of Patent: June 26, 2001
    Assignee: Mannesmann AG
    Inventors: Torsten Dellmann, Axel Kemner, Harald Neumann, Arne Heymer
  • Patent number: 6241215
    Abstract: A winch including a casing for accommodating an electric motor, a gearbox and a roller for winding and unwinding a traction member. In order to provide a cost-effective flat winch which can be transported by a single person and used universally, in particular for the domestic sector, the casing has a box-like configuration to exhibit a shape and size of a suitcase or attaché case, with the casing having opposite flat outer sides, with one outer side having attached thereon a suspension member, and the other outer side being formed with an opening for passage of the traction member. The electric motor, the gearbox and the roller are arranged in the casing and extend in a common plane, with the casing including a handle to allow transport of the winch by a person. The electric motor may be designed as a universal motor, and connected via a belt drive to the gearbox which is designed as a self-locking worm drive.
    Type: Grant
    Filed: October 26, 1999
    Date of Patent: June 5, 2001
    Assignee: Mannesmann AG
    Inventors: Udo Gersemsky, Uwe Lichtenvort, Giuliano Persico, Heinz Flaig, Jürgen Heun, Ralf Eising
  • Patent number: 6241065
    Abstract: A current collector trolley for traveling inside a current contact line of a type having a bottom formed longitudinally with a slot and accommodating therein current conductor rails in longitudinal direction, includes a base body extending through the slot to the outside and having sliding contacts forced into contact with the conductor rails during operative mode and electrically connected outside the current contact line to a multicore collector cable. The base body is made of plastic material and has embedded therein at least one flat electric conductor extending across the base body from top to bottom and having upper and lower ends. The upper end of the conductor is positioned in proximity of one of the sliding contacts and electrically connectable thereto, and the lower end of the conductor extends downwards to project out of the base body for electric connection with a core of the collector cable.
    Type: Grant
    Filed: March 3, 1999
    Date of Patent: June 5, 2001
    Assignee: Mannesmann AG
    Inventors: Thomas Kohlenberg, Klaus-Dieter Oemus, Michael Röhr, Uwe Schulte