Patents Assigned to Rexroth
  • Patent number: 7362550
    Abstract: Disclosed is an electric motor comprising a temperature monitoring device which is provided with at least two temperature sensors that have different temperature characteristics and are connected to terminal clamps by means of electrical wires, whereby it is possible in an advantageous manner to connect regulating devices having different temperature sensor input characteristics to the electric motor.
    Type: Grant
    Filed: October 24, 2003
    Date of Patent: April 22, 2008
    Assignee: Rexroth Indramat GmbH
    Inventors: Ingolf Groening, Bernd Schnurr
  • Patent number: 7357036
    Abstract: A force measuring apparatus comprises has a force-transmitting component, that holds a strain measuring element with a carrier element and a displacement transducer. The carrier element has two fixing sections at a predefined distance from each other in a direction of the strain with which it is fixed to the component. Furthermore, the carrier element has a strain section, which is provided between the fixing sections and which has a shorter length in the direction of the strain than the distance between the fixing sections, and which has a smaller cross section than the remaining carrier element. The displacement transducer is connected to the strain section in order to register the strain of the strain section.
    Type: Grant
    Filed: December 23, 2005
    Date of Patent: April 15, 2008
    Assignee: Bosch Rexroth AG
    Inventor: Werner Steprath
  • Patent number: 7357064
    Abstract: What is disclosed is a control arrangement for an equipment, in particular a wheel loader or a backhoe loader having a shovel mounted articulatedly at a boom, wherein the control arrangement enables a control of the shovel by means of a control pressure of a boom control unit, so that the latter may be taken into a target position during lowering of the boom or while the boom is taken into a floating condition.
    Type: Grant
    Filed: November 22, 2004
    Date of Patent: April 15, 2008
    Assignee: Bosch Rexroth AG
    Inventor: Wolfgang Kauss
  • Patent number: 7357141
    Abstract: A valve assembly includes at least one multiport valve for controlling and applying pressure to a pneumatic unit and a base plate having passageways for supplying compressed fluid to a multiport valve and for draining compressed fluid from the multiport valve. Interposed between the base plate and the multiport valve is a grid plate for functional differentiation of the valve assembly and determination of the valve assembly function.
    Type: Grant
    Filed: October 12, 2004
    Date of Patent: April 15, 2008
    Assignee: Rexroth Mecman GmbH
    Inventors: Ulrich Janietz, Wolfgang Brandes, Ernst-August Meyer, Thomas Liesenhoff
  • Patent number: 7351053
    Abstract: A drive unit, in particular for a closing unit, an injection unit, or an ejector of an injection molding machine, may be used where a high axial force is applied through a hydraulic power converter. A cylinder of the power converter may be fixed relative to a frame of the injection molding machine through the intermediary of a holding device which is functionally separate from guidance of the cylinder on the frame of the injection molding machine.
    Type: Grant
    Filed: October 15, 2004
    Date of Patent: April 1, 2008
    Assignee: Bosch Rexroth AG
    Inventor: Joerg Dantlgraber
  • Patent number: 7350763
    Abstract: A linear solenoid includes a pole tube; a housing jacket that encloses the pole tube; a coil that encompasses the pole tube; and a displaceable armature that is received in the pole tube. An overlap range between the housing jacket and an axially displaceable component that is in operative connection with the pole tube adjusts in order to adjust a magnetic force. The component is adapted to be actuated from outside in a mounted condition of the linear solenoid. The pole tube guides the component axially and the component has an external thread engaged with an internal thread of the housing jacket.
    Type: Grant
    Filed: July 7, 2005
    Date of Patent: April 1, 2008
    Assignee: Bosch Rexroth AG
    Inventor: Klaus Höfling
  • Patent number: 7343437
    Abstract: A synchronization method, a control system and a slave unit for the time synchronization of at least two slave units, in which the slave units and the master unit are connected by two signal lines. A signal transmitted by the master unit returns to the master unit after passing through all the slave units. Two independent counters are provided in each slave unit, these counters being activated by reception of a reference signal transmitted by the master unit. The first time counter counts the time since the receipt of the reference signal via the first signal line and the second time counter counts the time since the receipt of the reference signal via the second signal line. The counter contents are read out as soon as the sum of the counter contents reaches a signal throughput time transmitted previously by the master unit.
    Type: Grant
    Filed: November 18, 2005
    Date of Patent: March 11, 2008
    Assignee: Bosch Rexroth AG
    Inventors: Rigobert Kynast, Bernard Schneider
  • Publication number: 20080053081
    Abstract: The invention relates to a hydraulic control system for providing at least one hydraulic consumer with a pressure medium. Said system comprises an LS pump system and a metering port for adjusting the pressure medium volume flow rate towards the consumer. The LS line is connected to a pressure medium sink via a current regulator. The invention is characterized in that the current regulator can be adjusted depending on the pump rate in order to modify the pressure drop at the metering port.
    Type: Application
    Filed: December 14, 2005
    Publication date: March 6, 2008
    Applicant: BOSCH REXROTH AG
    Inventor: Wolfgang Kauss
  • Publication number: 20080050464
    Abstract: An actuator is disclosed, in particular for a locking unit of an injection compression machine, comprising a hydraulic force translator with two piston units moving relative to each other with different effective areas. The foregoing enclose a pressure chamber together with a cylinder or spacer of the force translator. The smaller piston unit is electrically driven, wherein the axial displacement of the smaller piston unit may be transmitted to the cylinder. The cylinder can be fixed relative to a chassis of the injection compression machine by means of a hydraulic clamping device. According to the invention, the pressure necessary for clamping is delivered by a high-pressure reservoir which may be charged during the displacement of the smaller piston unit.
    Type: Application
    Filed: March 29, 2005
    Publication date: February 28, 2008
    Applicant: BOSCH REXROTH AG
    Inventor: Joerg Dantlgraber
  • Patent number: 7337035
    Abstract: A method for carrying out a printing correction and a device for this. A method for carrying out a printing correction is provided, a product being printed on during a processing procedure by a plurality of processing devices, positions of two printing marks A,B,C,D being recorded. The positions of the printing marks A,B,C,D are evaluated and an automated correction of the print is carried out in the light of the positions of the printing marks A,B,C,D, the correcting including a correcting of a printing length. Furthermore, an apparatus is provided for carrying out the method.
    Type: Grant
    Filed: February 21, 2006
    Date of Patent: February 26, 2008
    Assignee: Bosch Rexroth AG
    Inventors: Christoph Müller, Stephan Schultze
  • Publication number: 20080041469
    Abstract: An on-off valve is disclosed, especially a fast-acting on-off valve, wherein a plunger is pretensioned in a base position. The plunger has a plurality of parallel control edges via which a plurality of sectional opening cross-sections, arranged in parallel in a hydraulic manner, can be jointly actuated to open or close when the valve is switched.
    Type: Application
    Filed: April 5, 2005
    Publication date: February 21, 2008
    Applicant: BOSCH REXROTH AG
    Inventors: Jorg Dantlgraber, Heino Forsterling, Rudolf Scheidl, Bernd Winkler
  • Patent number: 7324464
    Abstract: The communication system includes multiple participating devices connected with each other by a data line. At least one connection device for connection to a corresponding participant device defined as associated with it is connected to the data line. The communication system is preferably an IP network and with respective connection devices defined as associated with corresponding participating devices, which are used to connect portable operating and display terminals with the participating devices. For definite identification of the corresponding participating device associated with the respective connection devices, the connection devices include readable means of identifying the corresponding participating device, e.g. including a stored IP address, which is readable by the connected interface device, i.e. the terminal.
    Type: Grant
    Filed: September 25, 2003
    Date of Patent: January 29, 2008
    Assignee: Rexroth Indramat GmbH
    Inventors: Kai-Uwe Patz, Frank Hielscher
  • Patent number: 7310567
    Abstract: A method for the preparation, editing and maintenance of tool data sets for machining processes in an NC control system has at least one tool data organization that is separate from the control and is stored in the memory of an ADP system. The tool data organization has tool data sets for tools that for each of the tools to be used has the space for static and dynamic data. The tool data organization has separate list data sets of a machining process that can each contain a reference to the associated tool data set, and the required list data sets are taken over and stored in memory, together with the associated tool data sets, for process execution in the NC data processing unit. At least the dynamic data of the tool data sets can be updated in accordance with the current NC machining processes.
    Type: Grant
    Filed: September 12, 2002
    Date of Patent: December 18, 2007
    Assignee: Rexroth Indramat GmbH
    Inventors: Berndt Zetek, Andreas Guenzelmann
  • Patent number: 7306071
    Abstract: A hydraulic steering apparatus with steering amount amplification is provided, wherein a metering device for supplying pressure medium to steering cylinders is actuated in accordance with an amount of rotation of the steering wheel. With the aid of a control block it is possible to deliver an additional pressure medium volume to the steering cylinders, wherein control of the control block is effected through the intermediary of a control circuit containing an effective control pressure that is substantially lower than the load pressure for transmitting the steering moment at the steering cylinder. A spring assembly for the control block is also provided, wherein two springs are arranged in parallel, one of which only takes effect following a predetermined stroke of the control element.
    Type: Grant
    Filed: March 13, 2003
    Date of Patent: December 11, 2007
    Assignee: Bosch Rexroth AG
    Inventors: Edwin Harnischfeger, Erhard Bergmann, Walter Scandella, Vincenzo Domenico Bollero
  • Patent number: 7306447
    Abstract: Disclosed is an injection unit (1) for an injection molding machine, comprising a screw (4) that is driven by means of a spindle drive (18). The spindle drive (18) is driven via an electric motor (6). Additionally, a force that acts in an axial direction is transmitted to the screw of the injection unit (1) via a hydraulic cylinder (38). According to the invention, a pump (48, 68) is driven via the electric motor (6). A pressure chamber (44) of the cylinder (38) can be supplied with more pressurizing means via said pump (48, 68) than is needed during an axial displacement of the plunger (36).
    Type: Grant
    Filed: November 10, 2004
    Date of Patent: December 11, 2007
    Assignee: Bosch Rexroth AG
    Inventor: Joerg Dantlgraber
  • Patent number: 7300208
    Abstract: A guide rail (12) of a linear guide unit (10) is provided with at least one running rail (16), which has at least two races (16a) that have different load transmission directions. According to the present invention, the running rail (16) is attached to the guide rail (12) by means of roller insertion; in the surface sections (12a) associated with the races (16a) of the running rail (16), the guide rail (12) is provided with a plurality supporting ribs (12a1); and the supporting ribs (12a1) associated with one and the same race (16a) are aligned essentially parallel to the load transmission direction (B) of this race (16a). In addition or alternatively, in a section (12d) that is not intrinsically deformed by the roller insertion of the at least one running rail (16), the guide rail (12) has at least one additional rolled section. The present invention also relates to a method for manufacturing guide rails of this kind (12).
    Type: Grant
    Filed: April 15, 2005
    Date of Patent: November 27, 2007
    Assignee: Rexroth Star GmbH
    Inventors: Wolfgang Kuellstaedt, Richard Kuehnlein, Thomas Wahler, Roland Greubel, German Duetsch, Werner Keller, Stefan Dorn, Steven Worcester, Werner Blaurock
  • Patent number: 7296407
    Abstract: A hydraulic service module is provided for a hydraulic fluid system, which includes a fluid reservoir for storing an appropriate amount of a hydraulic fluid. The hydraulic service module comprises an outer casing defining an enclosure therewithin including an air chamber in fluid communication with an ambient air. The hydraulic service module houses one or more fluid pressure accumulators mounted within the enclosure and a heat exchanger provided for cooling the hydraulic fluid.
    Type: Grant
    Filed: March 8, 2005
    Date of Patent: November 20, 2007
    Assignee: Bosch Rexroth Corporation
    Inventor: Kenric B. Rose
  • Publication number: 20070261506
    Abstract: The invention relates to an electrically driven linear actuator for linearly moving a mass, in which at least one elongated actuator element, which, on the output side, acts upon the mass, is mounted inside a main pipe in a manner that enables it to slide in an axial direction, and which, on the input side, is coupled to a spindle nut that, itself, rests upon a spindle, which is rotationally mounted inside the main pipe and which can be placed in rotational motion by an electric motor. The spindle nut rests upon the spindle in such a manner that it, during its axial motion caused by a rotation of the spindle, displaces each actuator element in a telescopic manner with regard to the main pipe.
    Type: Application
    Filed: November 29, 2005
    Publication date: November 15, 2007
    Applicant: BOSCH REXROTH AG
    Inventor: Leo Ymker
  • Patent number: 7293916
    Abstract: A linear guidance device has an elongated guiding rail having at least one throughgoing opening extending from the upper surface for receiving a mounting element for mounting the guiding rail on a lower component. A guidance car is displaceably guided on the guiding rail in a longitudinal direction of the guiding rail. A cover band can be attached to an upper surface of the guiding rail, the cover band formed so that a limiting line of a free end of the cover band is formed so that when a point of the cover band coincides with a boundary line of the throughgoing opening in a selected direction, a portion of the limiting line is arranged completely outside of a boundary line of the throughgoing opening.
    Type: Grant
    Filed: April 22, 2004
    Date of Patent: November 13, 2007
    Assignee: Bosch Rexroth AG
    Inventor: Bruno Hotz
  • Patent number: 7290562
    Abstract: What is disclosed is a non-return valve comprising a sealing piston which is biased against a valve seat in the basic position inside a valve housing, and which is manufactured by a plastics injection molding technique.
    Type: Grant
    Filed: March 19, 2004
    Date of Patent: November 6, 2007
    Assignee: Bosch Rexroth AG
    Inventor: Brian J. Kane