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).
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Publication number: 20180283908Abstract: 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: ApplicationFiled: March 28, 2018Publication date: October 4, 2018Inventors: Johann MITTERREITER, Sonja NIEMEYER, Jürgen HERTENBERGER, Georg KAFFL
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Patent number: 8664944Abstract: 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: GrantFiled: January 28, 2009Date of Patent: March 4, 2014Assignee: Dr. Johannes Heidenhain GmbHInventor: Johann Mitterreiter
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Patent number: 8604778Abstract: 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: GrantFiled: February 5, 2009Date of Patent: December 10, 2013Assignee: Dr. Johannes Heidenhain GmbHInventor: Johann Mitterreiter
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Patent number: 8547543Abstract: 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: GrantFiled: January 25, 2012Date of Patent: October 1, 2013Assignee: Dr. Johannes Heidenhain GmbHInventor: Johann Mitterreiter
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Publication number: 20120188534Abstract: 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: ApplicationFiled: January 25, 2012Publication date: July 26, 2012Inventor: Johann Mitterreiter
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Publication number: 20110012591Abstract: 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: ApplicationFiled: February 5, 2009Publication date: January 20, 2011Inventor: Johann Mitterreiter
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Publication number: 20110006758Abstract: 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: ApplicationFiled: January 28, 2009Publication date: January 13, 2011Inventor: Johann Mitterreiter
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Patent number: 7707730Abstract: 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: GrantFiled: July 18, 2008Date of Patent: May 4, 2010Assignee: Dr. Johannes Heidenhain GmbHInventors: Johann Mitterreiter, Jens Dormann, Pascal Haible
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Patent number: 7694596Abstract: 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: GrantFiled: February 7, 2003Date of Patent: April 13, 2010Assignee: Dr. Johannes Heidenhain GmbHInventor: Johann Mitterreiter
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Patent number: 7694599Abstract: 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: GrantFiled: January 22, 2003Date of Patent: April 13, 2010Assignee: Dr. Johannes Heidenhain GmbHInventors: Alois Brandl, Johann Mitterreiter, Michael Schwabe
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Patent number: 7676935Abstract: 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: GrantFiled: September 13, 2007Date of Patent: March 16, 2010Assignee: Dr. Johannes Heidenhain GmbHInventor: Johann Mitterreiter
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Publication number: 20090025236Abstract: 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: ApplicationFiled: July 18, 2008Publication date: January 29, 2009Inventors: Johann MITTERREITER, Jens Dormann, Pascal Haible
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Patent number: 7469478Abstract: 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: GrantFiled: June 6, 2006Date of Patent: December 30, 2008Assignee: Dr. Johannes Heidenhain GmbHInventor: Johann Mitterreiter
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Publication number: 20080066327Abstract: 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: ApplicationFiled: September 13, 2007Publication date: March 20, 2008Inventor: Johann MITTERREITER
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Patent number: 7222543Abstract: 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: GrantFiled: November 23, 2004Date of Patent: May 29, 2007Assignee: Dr. Johannes Heidenhain GmbHInventors: Gary Rhodes, Mamoru Yamashita, Johann Mitterreiter, Mathias Tresenreiter, Yoshiyuki Nakamura
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Publication number: 20060277771Abstract: 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: ApplicationFiled: June 6, 2006Publication date: December 14, 2006Inventor: Johann Mitterreiter
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Patent number: 7136249Abstract: 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: GrantFiled: October 20, 2004Date of Patent: November 14, 2006Assignee: Dr. Johannes Heidenhain GmbHInventors: Volker Hoefer, Johann Lahr, Johann Mitterreiter, Gerhard Scheglmann
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Publication number: 20060107760Abstract: 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: ApplicationFiled: November 23, 2004Publication date: May 25, 2006Inventors: Gary Rhodes, Mamoru Yamashita, Johann Mitterreiter, Mathias Tresenreiter, Yoshiyuki Nakamura
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Publication number: 20050217400Abstract: 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: ApplicationFiled: February 7, 2003Publication date: October 6, 2005Inventor: Johann Mitterreiter
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Patent number: 6941240Abstract: 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: GrantFiled: September 11, 2001Date of Patent: September 6, 2005Assignee: Dr. Johannes Heidenhem GmbHInventor: Johann Mitterreiter