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).

  • Patent number: 6311402
    Abstract: A rotary transducer and drive shaft system that includes a drive shaft and a rotary transducer that has a stator, a rotor that is rotatable relative to the stator, and a clamping device for connecting the rotor to the drive shaft in a manner fixed against relative rotation. The clamping device includes an eccentric cam that is rotatably supported in a bore of the rotor and has an eccentric circumferential face that comes into contact with the drive shaft and clamps it upon rotation.
    Type: Grant
    Filed: February 2, 2000
    Date of Patent: November 6, 2001
    Assignee: Dr. Johannes Heidenhain GmbH
    Inventors: Alois Brandl, Johann Mitterreiter
  • Patent number: 6194710
    Abstract: An angle measuring device for measuring the angular position of two objects, which can be rotated in respect to each other. The device includes a graduated disk with a graduation and fastened on a hub. A scanning mechanism to scan the graduated disk and a fixation element including an axially extending projection of the hub, which is rigid in the axial direction and elastically resilient in the radial direction so as to fix the axial position relation between the graduated disk and the scanning mechanism, wherein the projection exists in a position of rest where the projection does not contact the scanning mechanism. A pressure element that displaces the projection from the position of rest to a clamping position where the projection clamps the scanning mechanism.
    Type: Grant
    Filed: April 5, 1999
    Date of Patent: February 27, 2001
    Assignee: Dr. Johannes Heidenhain GmbH
    Inventor: Johann Mitterreiter
  • Patent number: 5984564
    Abstract: An adapter for the coupling of two shaft ends in a defined angular orientation with respect to the longitudinal shaft axes. The adapter is mounted in a defined angular orientation on a first shaft, and on the side associated with a second shaft it has a receptacle for receiving the second shaft. The second shaft has an end that is partially flattened The receptacle is surrounded by a flange in one partial segment of which is at least one projection having inclined surfaces of such dimensions, that the projection fits interlockingly into the flattened part of the second shaft upon reaching the desired angular orientation of the two shafts. The adapter according to the invention is particularly suited for the connection of the shaft of a drive unit with the shaft of an rotary encoder.
    Type: Grant
    Filed: July 16, 1997
    Date of Patent: November 16, 1999
    Assignee: Dr. Johannes Heidenhain GmbH
    Inventor: Johann Mitterreiter
  • Patent number: 5758427
    Abstract: A stator of an angular-position measuring device is connected by means-of a coupling with the stationary portion of a drive device. A mounting element is screwed to the coupling, in which a coupling element is provided for radial clamping between the coupling and the stator.
    Type: Grant
    Filed: September 5, 1996
    Date of Patent: June 2, 1998
    Assignee: Dr. Johannes Heidenhain GmbH
    Inventors: Kurt Feichtinger, Johann Mitterreiter
  • Patent number: 4942295
    Abstract: A disk is connected with a hub in an angle measurement apparatus and a scanning arrangement is provided for scanning a graduation on the disk, the hub is not supported in the scanning arrangement, but is connected with an externally supported drive shaft of a drive unit, the angle measurement apparatus is preassembled in such a way by the manufacturer of the measuring instrument, that the recipient can place it on the drive shaft of the drive unit and fasten it there without having to perform any adjustment.
    Type: Grant
    Filed: May 25, 1989
    Date of Patent: July 17, 1990
    Assignee: Johannes Heidenhain GmbH
    Inventors: Arthur Brunner, Johann Mitterreiter