Patents Assigned to Fried. Krupp Gesellschaft mit beschrankter Haftung
  • Patent number: 5206481
    Abstract: A plasma burner has an annular passage extending along an insulated tube defining the outer wall of the electrode lance and located between the electrode lance and the multi wall burner shell to deliver the auxiliary gas outwardly of the plasma gas. The nozzle forming end of the electrode lance has a coolant circulation as has the burner shell and the annular passage extends substantially to the coolant inlets and outlets of the burner. The construction avoids the formation of parasitic arcs.
    Type: Grant
    Filed: July 2, 1991
    Date of Patent: April 27, 1993
    Assignee: Fried. Krupp Gesellschaft mit beschrankter Haftung
    Inventors: Heinrich O. Rossner, Ulrich Scheffler, Gebhard Tomalla, Herbert Klein
  • Patent number: 5147449
    Abstract: A process for producing metal metalmetalloid powder, with its particles having ultramicrocrystalline structures to nanocrystalline structures with the metalmetalloid component being composed of at least one metal reacted with at least one metalloid of the group including C, N, O, H, B, and Si. The metalloids, C, N, O, H, B, and Si are introduced in a highly reactive form together with powders of the metals of the matrix metal and of the metals of the metalmetalloid component into a high energy mill to produce a metal-metalmetalloid powder with its particles having a ultramicrocrystalline to nanocrystalline structure both in the metal matrix and in the metal metalloid component.
    Type: Grant
    Filed: April 11, 1989
    Date of Patent: September 15, 1992
    Assignee: Fried. Krupp Gesellschaft mit beschrankter Haftung
    Inventors: Hans Grewe, Wolfgang Schlump
  • Patent number: 5074370
    Abstract: A dual-track chassis includes an understructure (2) for carrying a load which is pivotal about a vertical axis (6) with respect to the understructure (2). The understructure (2) is supported on two crawler members (1) by joints (4), which provide two oppositely disposed points of support. The understructure (2) is also supported by a rocker member (9), the ends of which are in turn supported by the crawler members (1). In the normal position, the rocker member (9) is parallel to a line between the two points of support provided by the joints (4) and is rotatable about an axis lying in the vertical longitudinal center plane (8) of the chassis. The distance between an axis of rotation (5) and the vertical axis (6) is smaller than the distance between the rocker member (9) and the vertical axis (6). Stability is increased by supporting the understructure (2) on the rocker member (9) using holding members (11) which provide two additional points of support for the understructure (2).
    Type: Grant
    Filed: December 20, 1990
    Date of Patent: December 24, 1991
    Assignee: Fried. Krupp Gesellschaft mit beschrankter Haftung
    Inventors: Bernard Lindstrot, Arno Sehy
  • Patent number: 5061141
    Abstract: A method and apparatus for producing can bodies, wherein blanks are laterally centered after removal from a magazine, are engaged in the center of their rear edge and are transported into a shaping station in which initially the center section of the blank is bent into its final shape. While doing this, a central force and friction lock is produced between a transporting means and the deformed blank to realize reliable guidance of the already partially bent blank. To further transport the blank, it is contacted at its rear edge in the already completely bent region by two lateral transporting devices and is advanced to a seam forming station, while the opposite longitudinal edges of the blank are brought to an adjoining relationship.
    Type: Grant
    Filed: March 29, 1989
    Date of Patent: October 29, 1991
    Assignee: Fried. Krupp Gesellschaft mit beschrankter Haftung
    Inventors: Norbert Lentz, Harald Schmidt
  • Patent number: 5045250
    Abstract: A method of apportioning the quantity of material in the manufacture of molded products made from hardenable molding compounds in which a resin mat panel is cut into individual cut pieces which are stacked into mat packets and fed to the tool of a parallelism controlled press equipped with a path measuring system for measuring the distance between the clamping plates. The mat packets are compacted to become the molded products. A constant molded product volume is realized by measuring the thickness of the molded product at a defined point in time by means of the path measuring system and the measured values are used as regulating values for regulating the size of the cut area of each cut piece.
    Type: Grant
    Filed: June 9, 1989
    Date of Patent: September 3, 1991
    Assignee: Fried. Krupp Gesellschaft mit beschrankter Haftung
    Inventor: Richard Brussel
  • Patent number: 5017111
    Abstract: A tire press for vulcanizing a tire includes two rotationally symmetrical vulcanizing tools which are situated inside the tire in the working position thereof and which have a tool diameter greater than the diameter of the tire. The tire press further includes an apparatus for introducing the tire into the tire press. The apparatus has a carrier; a moving and guiding mechanism for displacing the carrier parallel to the press axis and also in a plane perpendicular to the press axis between a tire-receiving position and a position at the vulcanizing tools; an auxiliary frame mounted on the carrier to be pivotal with respect thereto about an axis perpendicular to the press axis; and a tool mounted on the auxiliary frame for grasping one of the two tire beads.
    Type: Grant
    Filed: May 25, 1990
    Date of Patent: May 21, 1991
    Assignee: Fried. Krupp Gesellschaft mit beschrankter Haftung
    Inventors: Gunter Drewel, Horst Enoch, Klaus Grotkasten
  • Patent number: 4995723
    Abstract: A method of analyzing elements of a metal melt contained in a melting vessel comprises the following steps: introducing an inert gas at a temperature in excess of 300.degree. C. laterally into a tube passing through a lateral wall of the melting vessel and opening thereinto; generating a laser beam; passing the laser beam through an adjustable first lens system; reflecting the laser beam by a mirror into the tube; guiding the laser beam through a quartz window which closes the tube; generating a plasma in the tube by focusing the laser beam by the adjustable first lens system onto the surface of the metal melt in the tube; guiding the light generated by the plasma through the quartz window to an adjustable second lens system; coupling the light by the adjustable second lens system with an optical waveguide; and introducing the light by the optical waveguide into a spectrometer.
    Type: Grant
    Filed: September 29, 1989
    Date of Patent: February 26, 1991
    Assignee: Fried. Krupp Gesellschaft Mit Beschrankter Haftung
    Inventors: Christoph Carlhoff, Claus-Jurgen Lorenzen, Klaus-Peter Nick
  • Patent number: 4982638
    Abstract: A cutting device for severing sheet material comprises a pneumatic cylinder defining a cylinder chamber having opposite first and second ends; a piston longitudinally slidably received in the cylinder chamber for executing working strokes between the first and second ends; a cutting blade situated at least partially externally of the cylinder and being secured to the piston for travel with the piston as a unit; a pressurized air vessel; and a first and a second switching valve connected to the respective ends of the cylinder chamber and to the presurized air vessel. Each switching valve has a first position in which pneumatic communication is maintained between the pressurized air vessel and a respective cylinder chamber part and a second position in which the respective cylinder chamber part is vented.
    Type: Grant
    Filed: February 17, 1989
    Date of Patent: January 8, 1991
    Assignee: Fried. Krupp Gesellschaft mit beschrankter Haftung
    Inventor: Richard Brussel
  • Patent number: 4983113
    Abstract: An extruder head assembly includes an extruder head having an abutment face and an internal flow channel terminating at the abutment face; first and second preforming dies and a preforming die drum removably accommodating the first and second preforming dies in a spaced relationship to one another. The drum is supported at the extruder head for rotation about an axis relative to the extruder head for selectively aligning one of the first and second preforming dies with the internal flow channel at the abutment face of the extruder head. Further, a releasable immobilizing mechanism is provided for pressing the drum against the abutment face, thereby placing the preforming die--aligned earlier with the flow channel--in an operative position.
    Type: Grant
    Filed: November 13, 1989
    Date of Patent: January 8, 1991
    Assignee: Fried. Krupp Gesellschaft mit beschrankter Haftung
    Inventor: Ingo Hirschkorn
  • Patent number: 4954067
    Abstract: A hydraulic press has a press stand; a generally horizontal press plate vertically movably supported in the press stand and arranged for executing forward and return strokes; and a plurality of hydraulic press cylinder units mounted in the press stand above the press plate. Each press cylinder unit has a power cylinder and a plunger slidably received in the power cylinder and extending from the power cylinder to the press plate. There are further provided a plurality of hydrostatic bearings mounted on the press plate; and a chamber defined with each hydrostatic bearing and containing hydraulic fluid. The lower terminus of the plunger projects into the chamber. The hydrostatic bearings constitute a force-transmitting arrangement between the plungers and the press plate and permit a tilting motion of the plungers relative to the press plate. Guide assemblies are mounted at the end of each power cylinder for sealingly and tiltably guiding the plunger.
    Type: Grant
    Filed: January 30, 1989
    Date of Patent: September 4, 1990
    Assignee: Fried. Krupp Gesellschaft mit beschrankter Haftung
    Inventor: Richard Brussel
  • Patent number: 4954068
    Abstract: A hydraulic press has a generally horizontal press plate vertically movably supported in a press stand; a hydraulic press cylinder unit mounted in the press stand above the press plate and having a power cylinder and a piston rod longitudinally slidably received in the power cylinder and extending from the power cylinder to the press plate; and a hydrostatic floating bearing assembly arranged on a surface of the press plate. The lower terminus of the piston rod projects into a hydraulic chamber of the bearing assembly. The latter includes an annular body surrounding the piston rod terminus and being coaxial therewith; and a sealing ring positioned between the annular body and the surface of the press plate. The sealing ring sealingly engages the annular body and the press plate surface and has a working inner diameter which is smaller than the diameter of the lower terminus of the piston rod.
    Type: Grant
    Filed: January 30, 1989
    Date of Patent: September 4, 1990
    Assignee: Fried. Krupp Gesellschaft mit beschrankter Haftung
    Inventor: Richard Brussel
  • Patent number: 4951885
    Abstract: A crusher unit is part of a mobile crushing system which may also include one or more endless conveyors, if required. The crusher unit has a substructure (1) that can be set down on the ground (14), a crusher (4), and a housing (9) for the control and supply devices that are needed. Transmission of vibrations from the crusher (4) to the housing (9) is avoided by disposing the housing (9) on a frame (8) which, in operation, is deposited on the ground (14). However, if the substructure (1) is lifted, as when the crusher unit is transported from one location to another, the frame is supported on the substructure.
    Type: Grant
    Filed: October 27, 1988
    Date of Patent: August 28, 1990
    Assignee: Fried. Krupp Gesellschaft mit beschrankter Haftung
    Inventor: Heinrich Thus
  • Patent number: 4945793
    Abstract: A tool coupling for connecting a tool head to a tool holder to secure the tool head against rotation and provide axial prestress. The tool head, which serves as a cutting tool, includes a shank having at least a portion which is conically configured, a threaded bore, and an annular contact collar. The tool holder includes a sleeve-shaped receiving bore corresponding to the shank, at least a portion of the receiving bore being conically configured, a tightening screw, and an annular contact face. An additional bore in the shank of the tool head ensures a prestress between the shank and the tool carrier including the receiving bore, and such prestress is not entirely relieved even if lateral forces act on the tool head. This keeps the tool head from vibrating in the receiving bore.
    Type: Grant
    Filed: September 6, 1989
    Date of Patent: August 7, 1990
    Assignee: Fried. Krupp Gesellschaft mit beschrankter Haftung
    Inventor: Rainer von Haas
  • Patent number: 4925006
    Abstract: A conveyor apparatus for sequentially advancing articles in a conveying direction comprises two parallel-spaced flexible pulling elements, each trained about an upstream and a downstream end wheel. A plurality of parallel-spaced article advancing bars, each oriented perpendicularly to the conveying direction, are supported by the two pulling elements and extend continuously therebetween. A stationary article supporting surface extends from between the first end wheels parallel to the conveying direction for supporting the articles as they are pushed in the conveying direction by respective article advancing bars. The article supporting surface has a starting location adjacent the upstream end wheels for sequentially receiving the articles to be engaged by an article advancing bar.
    Type: Grant
    Filed: June 24, 1988
    Date of Patent: May 15, 1990
    Assignee: Fried. Krupp Gesellschaft mit beschrankter Haftung
    Inventors: Norbert Lentz, Harald Schmidt
  • Patent number: 4924063
    Abstract: A laser welding process includes the steps of deflecting, with an oscillating frequency of at least 100 Hz, a collimated and focused laser measuring beam, intensity-modulated with a frequency of at least 200 kHz, across the path of the weld groove during co-travel with the laser welding beam along the weld groove; directing the laser measuring beam to the workpieces; causing the laser measuring beam to impinge on the workpieces at a distance of maximum 10 mm from the central longitudinal axis of the laser welding beam; sensing, by an electro-optical sensor having a single light-sensitive element, rays of the laser measuring beam reflected by the workpieces; generating, by the sensor, measuring signals in response to the sensed reflected rays; applying follow-up signals in response to the measuring signals, and correcting the position of the laser welding beam by the follow-up device in response to the follow-up signals applied thereto.
    Type: Grant
    Filed: September 8, 1989
    Date of Patent: May 8, 1990
    Assignee: Fried. Krupp Gesellschaft mit beschrankter Haftung
    Inventors: Manfred Buchel, Norbert Hangmann
  • Patent number: 4921352
    Abstract: A contactless optical process with which characteristics such as the type, position, deformation, and vibration spectrum, of an object can determined and/or measured. In this process, coherent light is changed by an optical medium fixed to the object. Suitable optical media, such as acousto-optical transducers or special holograms, are selected for the respective characteristics. A photosensitive receiver equipped with evaluation means determines the respective characteristics of the object from the changes in the coherent light caused by these optical media.
    Type: Grant
    Filed: November 20, 1987
    Date of Patent: May 1, 1990
    Assignee: Fried. Krupp Gesellschaft mit beschrankter Haftung
    Inventors: Friedhelm Adolfs, Gerd Bittner, Klaus P. Busing, Stephen Harris, Ulrich Hahn, Martin Wurzburger
  • Patent number: 4921419
    Abstract: A hydraulic press includes a press plate mounted for executing working strokes and return strokes; a hydraulic countersupport braking cylinder supported at an end zone of the working stroke for engaging the press plate at an end portion of the working stroke to cause deceleration of the press plate by the hydraulic countersupport braking cylinder; and a hydraulic shock absorber connected between the press plate and the hydraulic countersupport braking cylinder. The hydraulic shock absorber is arranged for compression from an expanded state by the press plate in an end zone of the working strokes. The hydraulic shock absorber has a shock absorber chamber containing hydraulic fluid; a throttle for setting a braking force in the shock absorber chamber to a magnitude smaller than the braking force of the hydraulic countersupport braking cylinder; and a resetting arrangement for returning the shock absorber into its expanded state.
    Type: Grant
    Filed: February 15, 1989
    Date of Patent: May 1, 1990
    Assignee: Fried. Krupp Gesellschaft mit beschrankter Haftung
    Inventor: Richard Brussel
  • Patent number: 4913607
    Abstract: A tool-and-tool holder assembly includes a tool having a tool shank; a tool holder having a receiving bore arranged for accommodating a stub of the tool shank; a clamping member disposed in the stub and being movable therein, generally perpendicularly to the shank; and two clamping screws supported in the tool holder and cooperating with the clamping member for axially tightening the shank against the tool holder. Each clamping screw has a first conical face and the clamping member has recesses each bounded by a second conical face. Upon tightening the clamping screws, the respective first and second conical faces are pressed against one another for generating an axial force component urging the shank into the receiving bore. At least one of the clamping screws has a third conical face, and the clamping member has a portion projecting over one of the recesses and having a fourth conical face.
    Type: Grant
    Filed: June 15, 1988
    Date of Patent: April 3, 1990
    Assignee: Fried. Krupp Gesellschaft mit beschrankter Haftung
    Inventor: Rainer von Haas
  • Patent number: 4912237
    Abstract: A feed suspension of pentosan-containing organic raw materials in dilute sulfuric acid is passed with low residence time through a flow reactor heated by high-pressure steam to 170.degree.-230.degree. C. and then through a cooler in which it is cooled to 140.degree.-200.degree. C. before the suspension is admitted to a flash evaporating unit from which a furfural-rich vapor phase is separated from the residual suspension. Process water is recovered from the residual suspension and recycled for the preparation of the feed suspension. From the vapor phase, furfural is recovered by distillation, either directly or after liquefaction. In the latter case, partial condensation in a primary condenser can be used to increase the furfural concentration in the final condenser, the condensate of the primary condenser being recycled for the preparation of the feed suspension.
    Type: Grant
    Filed: January 9, 1989
    Date of Patent: March 27, 1990
    Assignee: Fried. Krupp Gesellschaft mit Beschrankter Haftung
    Inventor: Karl J. Zeitsch
  • Patent number: 4909840
    Abstract: A process for the production of a secondary powder composition having a nanocrystalline structure and being comprised of binary or quasi-binary substances composed of at least one of the elements Y, Ti, Zr, Hf, Nb, Mo, Ta and W and at least one of the elements V, Cr, Mn, Fe, Co, Ni, Cu and Pd, optionally also containing further ingredients, such as Si, Ge, B and/or oxides, nitrides, borides, carbides, and their possible mixed crystals. The components are in powdered form and are mixed in elementary form or as pre-alloys and have particle sizes ranging from 2 to 250 .mu.m. The powder components are subjected to high mechanical forces in order to produce secondary powders having a nanocrystalline structure. The secondary powders obtained in this way can be processed into molded bodies according to known compression molding processes, but at a temperature below the recrystallization temperature.
    Type: Grant
    Filed: April 7, 1988
    Date of Patent: March 20, 1990
    Assignee: Fried. Krupp Gesellschaft mit beschrankter Haftung
    Inventor: Wolfgang Schlump