Patents Assigned to Mannesmann AG
  • Patent number: 6556918
    Abstract: A convenient, trouble-proof, economical identification of a place, especially for remote-controlled navigation of a vehicle through a traffic network, is made possible by a terminal unit, a central station and a method for identifying a name via the terminal unit, especially for identifying an interrogated name of a starting location or destination or current location of a route in a navigation terminal unit based on a plurality of characters which are a component of the name and are interrogated in the terminal unit as a character string. It it is determined whether or not the interrogated character string corresponds to the start of a character string contained in a list of exceptions. This latter character string being contained in a plurality of names.
    Type: Grant
    Filed: June 16, 1999
    Date of Patent: April 29, 2003
    Assignee: Mannesmann AG
    Inventors: Peter Stangier, Ralf Kolb
  • Patent number: 6550624
    Abstract: A telescopic crane, includes a substructure, a superstructure rotatably mounted onto the substructure, a counterweight and a telescoping boom structure which includes a main boom slewable about a luffing plane. The main boom has a boom base and at least one telescope section received in the boom base and displaceable between retracted and extended positions. At least one guy support is mounted to the boom structure and connected to a guy rope which extends substantially longitudinally in the direction of the boom structure. The guy support is oriented with respect to the luffing plane at an inclination which is so selected that a lateral load acting on the boom structure is partially or entirely received by the guying.
    Type: Grant
    Filed: June 28, 2000
    Date of Patent: April 22, 2003
    Assignee: Mannesmann AG
    Inventors: Michael Irsh, Walter Stowasser, Frank Conrad, Oliver Fries, Jens Fery, Roland Kuhn, Walter Zimmer, Markus Marx
  • Patent number: 6541143
    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: Grant
    Filed: November 30, 2000
    Date of Patent: April 1, 2003
    Assignee: Atecs Mannesmann AG
    Inventors: Wolfgang Herdeg, Holger Klos, Martin Sattler, Franz Reichenbach, Sabine Hess, Hans-Dieter Wilhelm, Jürgen Habrich, Karl Eck, Thomas Zapp
  • Patent number: 6541974
    Abstract: A device for measuring the filling level of a medium—for example hydrogen—in a storage container of a storage device—for example a tank system. To provide a simple and direct possible way of accurately determining the filling level of the storage container even without knowing the amount of medium already discharged or irrespective of uncontrollable losses, the device is designed as a measuring device for measuring the nuclear magnetic resonance of the medium located in the storage container. For this purpose, the device has a measuring head with, for example, a permanent magnet and a measuring coil, via which a static magnetic field and an electromagnetic alternating field are generated in the measuring head. The electromagnetic alternating field is generated in a transmitter, which is connected to the measuring head by a bridge circuit.
    Type: Grant
    Filed: February 20, 2001
    Date of Patent: April 1, 2003
    Assignee: Mannesmann AG
    Inventor: Walter Schütz
  • Patent number: 6536314
    Abstract: A device for continuous chipless separation of single identical rings from a tubular workpiece, includes at least two cutting rollers which are placed about the tubular workpiece, and which operate in a same direction and are interconnected by a positive engagement. Each cutting roller includes a basic body having opposite axial ends defining an entry zone and an exit zone, respectively. The basic body has a slip bevel at the entry zone, a calibrating section at the exit zone, and a cutting screw disposed between the slip bevel and the calibrating section and including a helical main thread portion with a conical entry part and a substantially cylindrical primary part in succession of the entry part, whereby the cutting screw has at least one additional thread which is disposed between threads of the main thread portion of the cutting screw.
    Type: Grant
    Filed: September 5, 2000
    Date of Patent: March 25, 2003
    Assignee: Mannesmann AG
    Inventors: Wilfried Forster, Roland Stephan, Dr.-Ing. Joachim Schlegel
  • Patent number: 6523875
    Abstract: Apparatus for grasping a load from above or from the side, in particular for use in a manipulator, includes two parallel elongate beams, and two carriers extending in a direction of the elongate beams, with each of the carriers supported by a corresponding one of the elongate beams and guided for displacement longitudinally in the direction of the elongate beams. The carriers are disposed in spaced-apart relationship, when viewed in a longitudinal direction of the carriers, and are movable relative to one another at least over a portion of a longitudinal extension of the carriers. Two confronting grippers are secured to the ends of the carriers and positioned on the outside of the carriers, when viewed in a direction transversely to the carriers and when the carriers are completely moved apart. A primary fluid-operated system is provided for moving the carriers in opposition to one another.
    Type: Grant
    Filed: November 22, 2000
    Date of Patent: February 25, 2003
    Assignee: Atecs Mannesmann AG
    Inventor: Rüdiger Ostholt
  • Patent number: 6525282
    Abstract: A pendant switch assembly for controlling a hoist, includes a transmitter mounted to a housing for wireless transmission of control signals to a receiver mounted remotely with respect to the housing and operatively connected to a power controller of a drive of the hoist. A plurality of control elements is arranged in the housing and actuated by a plurality of actuators from outside for delivering control signals for the power controller to the transmitter. Secured to the hoist is a traction member which is guided downwards, with a receptacle secured to a lower end of the traction member. The housing is securely attachable to the receptacle by plugging in the housing into the receptacle, and detachable from the receptacle by withdrawal thereof. Electric energy is supplied to the control elements and the transmitter by a power source which is also accommodated in the housing.
    Type: Grant
    Filed: March 12, 2001
    Date of Patent: February 25, 2003
    Assignee: Atecs Mannesmann AG
    Inventors: Wolfgang Krebs, Uwe Lichtenvort, Bernd Neupert, Klaus Weihmann
  • Patent number: 6523011
    Abstract: A communication system for transmitting accounting instructions has central and decentralized devices. Accounting instructions input by individual users at the decentralized devices are checked for authenticity and retransmitted to the central devices to be processed. According to the invention, the communication system has at least virtually networked devices, means of an independent second communication system (2) with stationary devices (21, 22/1, 22/2) and portable communication transmitters (23) which communicate therewith in an encrypted manner. The stationary devices (21, 22/1, 22/2) of the second communication system (2) may be at least temporarily connected to the central devices (11) of the first communication system (1). Accounting instructions given by individual users with the portable communication transmitters (23) of the second communication system (2) can be previously authenticated in one of the central devices (11) of the first communication system.
    Type: Grant
    Filed: January 13, 1999
    Date of Patent: February 18, 2003
    Assignee: Mannesmann AG
    Inventor: Peter Mihatsch
  • Patent number: 6516961
    Abstract: A ringlift crane having a ring which can be elevated, forms an annular track and has a plurality of segments which can be connected to one another, there being arranged within said ring an undercarriage which has an upper carriage, which is connected for slewing action to the undercarriage and has a plurality of hoisting winches. Two trusses which are spaced apart parallel to one another, are provided, in two mutually opposite end regions, with in each case one adapter and can be bolted to, and unbolted from, the upper carriage via crossmembers. The adapters are supported with rolling action on the annular track of the ring by rollers arranged in the end region of the adapters. For the purpose of setting different modes of operation of the crane, the trusses can be raised relative to the basic machine and connected in different ways to the crossmembers.
    Type: Grant
    Filed: September 26, 2000
    Date of Patent: February 11, 2003
    Assignee: Atecs Mannesmann AG
    Inventors: Alexander Knecht, Manfred Kretschmer, Michael Biermann, Ralf Frankenberger
  • Patent number: 6516962
    Abstract: A telescopic boom for crane, in particular mobile cranes, includes a base section and a plurality of boom sections received in the base section and telescopically extendible and retractable. The base section and the boom sections are each made of a profile comprised of an upper shell and a lower shell which are joined together at their confronting walls, with the upper shell having a nominal wall thickness which is equal or smaller than a nominal wall thickness of the lower shell. At least one portion of the upper and lower shells includes, as viewed in cross section, two outer thin metal sheets which are placed in spaced-apart relationship to define an intermediate space therebetween.
    Type: Grant
    Filed: October 6, 2000
    Date of Patent: February 11, 2003
    Assignee: Atecs Mannesmann AG
    Inventors: Michael Irsch, Jens Fery
  • Patent number: 6513840
    Abstract: A boring rod connector with a journal element that has a tapered external thread section located between an outer shoulder and a journal face, a thread-free section located between the outer shoulder and the external thread section, and a thread-free section located between the external thread section and the journal face, and with a sleeve element that can be screwed to the journal element and has a tapered internal thread section located between an inner shoulder and a sleeve face, a thread-free section located between the inner shoulder and the internal thread section, and a thread-free section located between the internal thread section and the sleeve face. The thread-free sections of the journal element and the sleeve element located in the area of the inner shoulder that, when a screw connected exists, lie opposite to each other, have a different length than the thread-free sections of the journal element and the sleeve element located in the region of the inner shoulder.
    Type: Grant
    Filed: December 18, 2000
    Date of Patent: February 4, 2003
    Assignee: Mannesmann AG
    Inventors: Gerhard Krug, Erich Quadflieg
  • Publication number: 20030022033
    Abstract: A fuel cell having an electrode-electrolyte unit, with an anode catalyst via which the catalytic activity in the fuel cell is reduced by carbon monoxide. An arrangement for varying the anode potential in a pulsed manner such that carbon monoxide adsorbed at the catalyst is also provided. In this way, power losses caused by carbon monoxide adsorptions at the anode catalyst are reduced.
    Type: Application
    Filed: November 13, 2001
    Publication date: January 30, 2003
    Applicant: Mannesmann AG
    Inventors: Ulrich Stimming, Kaspar Andreas Friedrich, Wolfgang Unkauf
  • Patent number: 6508497
    Abstract: An overhead clamp-type gripping device for gripping a load from above, includes a carrier frame which is movable in a vertical direction and has support elements positioned on both sides of a center plane and extending downwards from the carrier frame for movement relative to one another. The support elements have longitudinal guides which define an upwardly open angle with respect to the center plane. Received in the longitudinal guides of the support elements is a gripper unit which includes gripping elements for laterally contacting a load.
    Type: Grant
    Filed: January 5, 2000
    Date of Patent: January 21, 2003
    Assignee: Mannesmann AG
    Inventor: Klaus Nerger
  • Patent number: 6502977
    Abstract: An extruder plant includes a worm extruder having a reduced length and including only a feed zone of the extruder plant and a gearwheel extruder connected downstream of the worm extruder and including a plasticizing and pressure build-up zone of the extruder plant.
    Type: Grant
    Filed: September 1, 2000
    Date of Patent: January 7, 2003
    Assignee: Atecs Mannesmann AG
    Inventor: Gerd Capelle
  • Patent number: 6499611
    Abstract: The invention relates to a mobile harbor crane for normal and heavy load operation, having an undercarriage and a superstructure mounted thereon. A tower is fastened on the superstructure and a jib which pivotable about a horizontal axis is arranged on a front side of the tower. During a normal mode of operation, the jib is held pivotably on the superstructure by a luffing cylinder coupled to the jib and to the tower and the load lifted and lowered via a hoisting cable guided to the jib head and having a snatch block suspended on it. For a heavy load operating load, the mobile harbor crane further includes a heavy load lifting winch with a heavy load lifting cable which is guided over a deflecting roller fastened to the jib and further guided to a roller assembly of a heavy load snatch block arranged releasably on the jib head.
    Type: Grant
    Filed: September 13, 2000
    Date of Patent: December 31, 2002
    Assignee: Atecs Mannesmann AG
    Inventors: Hermann Franzen, Joachim Kröll
  • Publication number: 20020189782
    Abstract: An apparatus and process for casting a continuous metal strand, in particular steel, in a continuous casting apparatus having strand parts disposed opposite one another and being fitted with bearings in which guide rollers are mounted, and having actuators by which a gap between respective opposed rollers can be set infinitely variable, and which method includes sensing a value representing a compressive force which occurs in the bearings and feeding said value to a computing unit; comparing the individual measured force values of a roller or of a pair of oppositely disposed rollers with respect to a level of the force; and utilizing at least the relating highest value measured as a command variable for controlling the gap and/or the casting rate and/or the amount of cooling water and/or the melt feed and/or the casting powder feed and/or the mold oscillation.
    Type: Application
    Filed: August 21, 2002
    Publication date: December 19, 2002
    Applicant: Mannesmann AG
    Inventor: Ronald E. Ashburn
  • Patent number: 6474487
    Abstract: A ringlift crane having a ring which can be elevated and forms an annular track. Arranged within the ring is a standardized undercarriage from a first crane class and a standardized upper carriage, which is connected for stewing action to the undercarriage and has a plurality of hoisting winches. The upper carriage is connected to one adapter in both end regions. The adapters are supported with rolling action on the annular track of the ring by rollers. The center point of the ring and/or of the undercarriage forms the stewing axis. One adapter is designed for accommodating a counterweight and the other adapter is designed as a load-bearing element for the main boom and the mast (counter-boom) which can be articulated at the free end of the adapter. The top of the mast is connected, on the one hand, to the counterweight via a stay cable and, on the other hand, to the head of the main boom via a changeable-length cable stay.
    Type: Grant
    Filed: September 26, 2000
    Date of Patent: November 5, 2002
    Assignee: Mannesmann AG
    Inventor: Manfred Kretschmer
  • Patent number: 6470957
    Abstract: A process for casting a continuous metal strand, in particular steel, in a continuous casting apparatus having strand parts disposed opposite one another and being fitted with bearings in which guide rollers are mounted, and having actuators by which a gap between respective opposed rollers can be set infinitely variable, and which method includes sensing a value representing a compressive force which occurs in the bearings and feeding said value to a computing unit; comparing the individual measured force values of a roller or of a pair of oppositely disposed rollers with respect to a level of the force; and utilizing at least the relating highest value measured as a command variable for controlling the gap and/or the casting rate and/or the amount of cooling water and/or the melt feed and/or the casting powder feed and/or the mold oscillation.
    Type: Grant
    Filed: July 16, 1999
    Date of Patent: October 29, 2002
    Assignee: Mannesmann AG
    Inventor: Ronald E. Ashburn
  • Patent number: 6471274
    Abstract: A gripper of a liftable and lowerable load-carrying apparatus for a container, includes a frame placed from above onto a container and having spaced-apart cross beams. Each cross beam defines a longitudinal direction and has at least two gripper elements spaced from one another at a distance which is greater than a dimension of the gripper elements, with each gripper element depending from the cross beam for insertion through a container opening when the frame is placed on the container. The cross beam is made of two sheets which are movable relative to one another in the longitudinal direction, with one of the sheets having one of the gripper elements and the other one of the sheets having the other one of the gripper elements, with the two gripper elements movable in opposite direction to one another in the longitudinal direction of the beam between a ready position and a gripping position.
    Type: Grant
    Filed: September 13, 2000
    Date of Patent: October 29, 2002
    Assignee: Atecs Mannesmann AG
    Inventor: Klaus Nerger
  • Patent number: 6453825
    Abstract: The invention relates to an underframe for a rail-borne vehicle for transporting freely movable loads, more specifically the underframe of a railroad crane. The underframe has a plurality of curve-negotiating wheel sets which are accommodated in bogies and mounted in a running-gear frame for rolling on running rails. A supporting-wheel set including two supporting wheels is provided to selectively relieve the load on the curve-negotiating wheel sets. The supporting-wheel set is fastened to the vehicle so that the supporting wheels may be raised to a rest position above the running rails and lowered from the rest position to an operative position in which the supporting wheel rests with adjustable pressure on the running rails.
    Type: Grant
    Filed: August 25, 2000
    Date of Patent: September 24, 2002
    Assignee: Atecs Mannesmann AG
    Inventors: Klaus Sprave, Ralf Rode