Patents by Inventor Johann Mitterreiter

Johann Mitterreiter 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).

  • Publication number: 20180283908
    Abstract: An angle measurement system includes a first component group, a second component group, and bearing elements arranged between the component groups. A gap extends at an axial extension between a first component and a second component so that the components are disposed along both sides of the gap relative to each other without coming into contact. An annular first body is mounted on the first component, which is disposed without contact in relation to the second component group. The second component includes a section, which is separated by a radial gap and is located radially outside and across from a region of the first body that extends in the axial direction, and the first body is situated radially outside and circumferentially about the axis in relation to the bearing elements. The first body is able to hold lubricant. Alternatively or additionally, a corresponding annular second body is fixed in place on the second component.
    Type: Application
    Filed: March 28, 2018
    Publication date: October 4, 2018
    Inventors: Johann MITTERREITER, Sonja NIEMEYER, J├╝rgen HERTENBERGER, Georg KAFFL
  • Patent number: 8664944
    Abstract: An angle measuring system includes a first component group and a second component group, the first component group being mounted in a manner allowing rotation about an axis relative to the second component group. The first component group includes a ring having a running surface and an angle scaling. The second component group has a further ring having a further running surface, as well as a sensor for scanning the angle scaling. Rolling elements are arranged between the running surfaces, the angle scaling being applied such that a geometric pattern of the angle scaling in a first region differs from a geometric pattern of the angle scaling in a second region as a function of radial runouts of the running surfaces and/or of the rolling elements.
    Type: Grant
    Filed: January 28, 2009
    Date of Patent: March 4, 2014
    Assignee: Dr. Johannes Heidenhain GmbH
    Inventor: Johann Mitterreiter
  • Patent number: 8604778
    Abstract: An angle measuring system includes a first component group and a second component group, the first component group being mounted so as to be rotatable relative to the second component group. The first component group includes a ring having a running surface and an angle scaling. The second component group has a sensor for scanning the angle scaling as well as a printed circuit board having an electronic circuit for evaluating sensor signals producible by the scanning. The second component group furthermore includes a solid ring, on which another running surface is situated and which has a first recess for accommodating the circuit board and a second recess for accommodating an electrical conductor. The conductor connects the sensor electrically to the electronic circuit situated at a distance from the sensor.
    Type: Grant
    Filed: February 5, 2009
    Date of Patent: December 10, 2013
    Assignee: Dr. Johannes Heidenhain GmbH
    Inventor: Johann Mitterreiter
  • Patent number: 8547543
    Abstract: An angle-measuring device includes a first group of components and a second group of components that are rotatable relative to each other about an axis. The first group includes a carrier element for enclosing a shaft and on which a graduation disk is secured, a connecting element, and a device for affixing the connecting element relative to the carrier element. The second group includes a sensor element for scanning the graduation disk. The carrier element and the connecting element are arranged such that the connecting element is able to be brought into operative connection with the carrier element so that torque is transmittable with positive locking between the connecting element and the carrier element about the axis. The connecting element is able to be brought into a positive-locking position by axial displacement by the device for affixing the connecting element, and is able to be prestressed radially against the shaft.
    Type: Grant
    Filed: January 25, 2012
    Date of Patent: October 1, 2013
    Assignee: Dr. Johannes Heidenhain GmbH
    Inventor: Johann Mitterreiter
  • Publication number: 20120188534
    Abstract: An angle-measuring device includes a first group of components and a second group of components that are rotatable relative to each other about an axis. The first group includes a carrier element for enclosing a shaft and on which a graduation disk is secured, a connecting element, and a device for affixing the connecting element relative to the carrier element. The second group includes a sensor element for scanning the graduation disk. The carrier element and the connecting element are arranged such that the connecting element is able to be brought into operative connection with the carrier element so that torque is transmittable with positive locking between the connecting element and the carrier element about the axis. The connecting element is able to be brought into a positive-locking position by axial displacement by the device for affixing the connecting element, and is able to be prestressed radially against the shaft.
    Type: Application
    Filed: January 25, 2012
    Publication date: July 26, 2012
    Inventor: Johann Mitterreiter
  • Publication number: 20110012591
    Abstract: An angle measuring system includes a first component group and a second component group, the first component group being mounted so as to be rotatable relative to the second component group. The first component group includes a ring having a running surface and an angle scaling. The second component group has a sensor for scanning the angle scaling as well as a printed circuit board having an electronic circuit for evaluating sensor signals producible by the scanning. The second component group furthermore includes a solid ring, on which another running surface is situated and which has a first recess for accommodating the circuit board and a second recess for accommodating an electrical conductor. The conductor connects the sensor electrically to the electronic circuit situated at a distance from the sensor.
    Type: Application
    Filed: February 5, 2009
    Publication date: January 20, 2011
    Inventor: Johann Mitterreiter
  • Publication number: 20110006758
    Abstract: An angle measuring system includes a first component group and a second component group, the first component group being mounted in a manner allowing rotation about an axis relative to the second component group. The first component group includes a ring having a running surface and an angle scaling. The second component group has a further ring having a further running surface, as well as a sensor for scanning the angle scaling. Rolling elements are arranged between the running surfaces, the angle scaling being applied such that a geometric pattern of the angle scaling in a first region differs from a geometric pattern of the angle scaling in a second region as a function of radial runouts of the running surfaces and/or of the rolling elements.
    Type: Application
    Filed: January 28, 2009
    Publication date: January 13, 2011
    Inventor: Johann Mitterreiter
  • Patent number: 7707730
    Abstract: An annular body has an angle scale for measuring the rotational position of a machine part about an axis, the body having recesses and projections on its inner circumference, and at least one of the recesses being suited for a form-locking rotatably fixed attachment on the machine part. The sum of the central angles, which are respectively defined by starting points and end points of the projections is smaller than the sum of the central angles, which are respectively defined by the starting points and end points of the recesses. Such a body on a high-speed shaft of a machine tool may be used for measuring the rotational position of the shaft.
    Type: Grant
    Filed: July 18, 2008
    Date of Patent: May 4, 2010
    Assignee: Dr. Johannes Heidenhain GmbH
    Inventors: Johann Mitterreiter, Jens Dormann, Pascal Haible
  • Patent number: 7694596
    Abstract: In a gear system and a rotary transducer provided with the gear system, the gear system includes a first part, a convex toothed wheel, a supporting body, relative to which the first part and the convex toothed wheel are rotationally mounted, and engaging elements which mesh with the toothed wheel according to the rotational position of the first part. The engaging elements carry out a movement with a radial directional component relative to the toothed wheel. A force with a tangential directional component is applied to the toothed wheel, the force being the result of the interaction between the engaging elements and the supporting body.
    Type: Grant
    Filed: February 7, 2003
    Date of Patent: April 13, 2010
    Assignee: Dr. Johannes Heidenhain GmbH
    Inventor: Johann Mitterreiter
  • Patent number: 7694599
    Abstract: A gear mechanism includes a rotating input element, a rotating output element, and at least one first force transmission device arranged along a spiral line on a face of the input element. A second force transmission device is arranged along an encircling line on a face of the output element. The interaction of these force transmission devices transmits a turning moment from the input element to the output element, whereby this turning moment effects a rotating motion in the output element so that the rotational speed is lower than the rotational speed of the input element. A rotary encoder may be equipped with a gear mechanism of the aforementioned type.
    Type: Grant
    Filed: January 22, 2003
    Date of Patent: April 13, 2010
    Assignee: Dr. Johannes Heidenhain GmbH
    Inventors: Alois Brandl, Johann Mitterreiter, Michael Schwabe
  • Patent number: 7676935
    Abstract: In an angle-measurement system and a method for producing an angle-measurement system, the angle-measurement system includes a bearing assembly and a scanning head, the bearing assembly including a graduated ring, an outer ring and rolling bodies. Rolling surfaces are formed both on the graduated ring and the outer ring, the rolling surface of the graduated ring having a smaller path radius than that of the outer ring. Furthermore, the rolling surface of the outer ring is arranged opposite the rolling surface of the graduated ring, and the rolling bodies are disposed between the two rolling surfaces such that the bearing assembly is free of radial play. In addition, an angle scaling is applied directly onto the graduated ring such that a geometrical pattern of the angle scaling in a first region deviates from a geometrical pattern in a second region as a function of rotational eccentricities of the bearing assembly. The angle scaling is able to be scanned by the scanning head.
    Type: Grant
    Filed: September 13, 2007
    Date of Patent: March 16, 2010
    Assignee: Dr. Johannes Heidenhain GmbH
    Inventor: Johann Mitterreiter
  • Publication number: 20090025236
    Abstract: An annular body has an angle scale for measuring the rotational position of a machine part about an axis, the body having recesses and projections on its inner circumference, and at least one of the recesses being suited for a form-locking rotatably fixed attachment on the machine part. The sum of the central angles, which are respectively defined by starting points and end points of the projections is smaller than the sum of the central angles, which are respectively defined by the starting points and end points of the recesses. Such a body on a high-speed shaft of a machine tool may be used for measuring the rotational position of the shaft.
    Type: Application
    Filed: July 18, 2008
    Publication date: January 29, 2009
    Inventors: Johann MITTERREITER, Jens Dormann, Pascal Haible
  • Patent number: 7469478
    Abstract: A coupling is for the connection, that is radially elastic but torsion resistant, of two component parts. The coupling includes base elements and a plurality of tabs formed integrally with the base elements at node areas. Each tab has two support points that are at a distance from one another in the circumferential direction. The node areas form the connection of the tabs to the base elements. Both the node areas and the tabs are configured such that they are flexurally softer than the base elements.
    Type: Grant
    Filed: June 6, 2006
    Date of Patent: December 30, 2008
    Assignee: Dr. Johannes Heidenhain GmbH
    Inventor: Johann Mitterreiter
  • Publication number: 20080066327
    Abstract: In an angle-measurement system and a method for producing an angle-measurement system, the angle-measurement system includes a bearing assembly and a scanning head, the bearing assembly including a graduated ring, an outer ring and rolling bodies. Rolling surfaces are formed both on the graduated ring and the outer ring, the rolling surface of the graduated ring having a smaller path radius than that of the outer ring. Furthermore, the rolling surface of the outer ring is arranged opposite the rolling surface of the graduated ring, and the rolling bodies are disposed between the two rolling surfaces such that the bearing assembly is free of radial play. In addition, an angle scaling is applied directly onto the graduated ring such that a geometrical pattern of the angle scaling in a first region deviates from a geometrical pattern in a second region as a function of rotational eccentricities of the bearing assembly. The angle scaling is able to be scanned by the scanning head.
    Type: Application
    Filed: September 13, 2007
    Publication date: March 20, 2008
    Inventor: Johann MITTERREITER
  • Patent number: 7222543
    Abstract: A modular encoder includes an encoder housing and a printed circuit board mounted in the encoder housing. The modular encoder also includes a mounting bracket adapted to electrically couple to the printed circuit board and a mounting screw adapted to couple the encoder housing to a motor and to electrically couple the mounting bracket to the motor.
    Type: Grant
    Filed: November 23, 2004
    Date of Patent: May 29, 2007
    Assignee: Dr. Johannes Heidenhain GmbH
    Inventors: Gary Rhodes, Mamoru Yamashita, Johann Mitterreiter, Mathias Tresenreiter, Yoshiyuki Nakamura
  • Publication number: 20060277771
    Abstract: A coupling is for the connection, that is radially elastic but torsion resistant, of two component parts. The coupling includes base elements and a plurality of tabs formed integrally with the base elements at node areas. Each tab has two support points that are at a distance from one another in the circumferential direction. The node areas form the connection of the tabs to the base elements. Both the node areas and the tabs are configured such that they are flexurally softer than the base elements.
    Type: Application
    Filed: June 6, 2006
    Publication date: December 14, 2006
    Inventor: Johann Mitterreiter
  • Patent number: 7136249
    Abstract: A positioning device includes a swiveling shaft, at one end of which an element to be positioned may be attached, a swivel drive, made up of a rotor, which is movable relative to a stator, a position measuring device, made up of two parts movable relative to each other, and a roller bearing, which includes several rolling elements. The rotor of the swivel drive and a first part of the position measuring device are connected to the shaft in a rotatably fixed manner. The rolling elements are made of a ceramic material.
    Type: Grant
    Filed: October 20, 2004
    Date of Patent: November 14, 2006
    Assignee: Dr. Johannes Heidenhain GmbH
    Inventors: Volker Hoefer, Johann Lahr, Johann Mitterreiter, Gerhard Scheglmann
  • Publication number: 20060107760
    Abstract: A modular encoder includes an encoder housing and a printed circuit board mounted in the encoder housing. The modular encoder also includes a mounting bracket adapted to electrically couple to the printed circuit board and a mounting screw adapted to couple the encoder housing to a motor and to electrically couple the mounting bracket to the motor.
    Type: Application
    Filed: November 23, 2004
    Publication date: May 25, 2006
    Inventors: Gary Rhodes, Mamoru Yamashita, Johann Mitterreiter, Mathias Tresenreiter, Yoshiyuki Nakamura
  • Publication number: 20050217400
    Abstract: In a gear system and a rotary transducer provided with the gear system, the gear system includes a first part, a convex toothed wheel, a supporting body, relative to which the first part and the convex toothed wheel are rotationally mounted, and engaging elements which mesh with the toothed wheel according to the rotational position of the first part. The engaging elements carry out a movement with a radial directional component relative to the toothed wheel. A force with a tangential directional component is applied to the toothed wheel, the force being the result of the interaction between the engaging elements and the supporting body.
    Type: Application
    Filed: February 7, 2003
    Publication date: October 6, 2005
    Inventor: Johann Mitterreiter
  • Patent number: 6941240
    Abstract: A position measuring system that includes a scale graduation, a scanning unit for scanning the scale graduation. An adjustment device that includes a displacement element for setting a position of the scanning unit with respect to the scale graduation and a gear-down mechanism arranged between the displacement element and the scanning unit, the gear-down mechanism converts a displacement movement of the displacement element into a shorter displacement movement of the scanning unit. The gear-down mechanism includes a lever arrangement with joints, which converts the displacement movement of the displacement element into a linear displacement movement of the scanning unit in relation to the scale graduation.
    Type: Grant
    Filed: September 11, 2001
    Date of Patent: September 6, 2005
    Assignee: Dr. Johannes Heidenhem GmbH
    Inventor: Johann Mitterreiter