Patents by Inventor Johannes Haunreiter

Johannes Haunreiter 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: 11656105
    Abstract: An optical position-measuring device includes a scale and a scanning unit. The scale is connected to a first object, extends along a measurement direction and includes a first track having an incremental measuring graduation, and a second track having an absolute measuring graduation. The scanning unit is connected to a second object and includes a light source, a detector having an absolute detector arrangement configured to detect an aperiodic light pattern transmitted from the absolute measuring graduation onto a detection plane and an incremental detector arrangement configured to detect a periodic light pattern transmitted from the incremental measuring graduation onto a detection plane, and a fiber-optic plate arranged as a continuous component in front of the absolute detector arrangement and the incremental detector arrangement, wherein both absolute track information and incremental track information in the respective detection planes are transmitted via the fiber-optic plate in this manner.
    Type: Grant
    Filed: November 24, 2021
    Date of Patent: May 23, 2023
    Assignee: DR. JOHANNES HEIDENHAIN GMBH
    Inventors: Ulrich Benner, Tarek Nutzinger, Daniel Krempke, Johannes Haunreiter
  • Publication number: 20220163354
    Abstract: An optical position-measuring device includes a scale and a scanning unit. The scale is connected to a first object, extends along a measurement direction and includes a first track having an incremental measuring graduation, and a second track having an absolute measuring graduation. The scanning unit is connected to a second object and includes a light source, a detector having an absolute detector arrangement configured to detect an aperiodic light pattern transmitted from the absolute measuring graduation onto a detection plane and an incremental detector arrangement configured to detect a periodic light pattern transmitted from the incremental measuring graduation onto a detection plane, and a fiber-optic plate arranged as a continuous component in front of the absolute detector arrangement and the incremental detector arrangement, wherein both absolute track information and incremental track information in the respective detection planes are transmitted via the fiber-optic plate in this manner.
    Type: Application
    Filed: November 24, 2021
    Publication date: May 26, 2022
    Inventors: Ulrich Benner, Tarek Nutzinger, Daniel Krempke, Johannes Haunreiter
  • Patent number: 8448347
    Abstract: A length measuring device for measuring a relative position of two objects, the length measuring device including a scale in a housing and a scanning unit displaceable in a measuring direction X relative to the scale and the housing, wherein the scanning unit is disposed inside the housing and including a heat-generating electrical component. The length measuring device further including a thermal conduction path designed for transferring heat generated at the heat-generating electrical component to the housing.
    Type: Grant
    Filed: October 13, 2009
    Date of Patent: May 28, 2013
    Assignee: Dr. Johannes Heidenhain GmbH
    Inventors: Alfred Affa, Johannes Haunreiter
  • Publication number: 20110209352
    Abstract: A length measuring device for measuring a relative position of two objects, the length measuring device including a scale in a housing and a scanning unit displaceable in a measuring direction X relative to the scale and the housing, wherein the scanning unit is disposed inside the housing and including a heat-generating electrical component. The length measuring device further including a thermal conduction path designed for transferring heat generated at the heat-generating electrical component to the housing.
    Type: Application
    Filed: October 13, 2009
    Publication date: September 1, 2011
    Applicant: Dr. Johannes Heidenhain GmbH
    Inventors: Alfred Affa, Johannes Haunreiter
  • Patent number: 7866023
    Abstract: An arrangement for fastening a support of a scale of a linear measuring device on a mounting surface of an object to be measured. The arrangement includes a clamping jaw and a force-exerting element urging the clamping jaw against the support. The clamping jaw acts together with the support in such a way that the clamping jaw urges said support with a clamping force that includes 1) a first force component against the mounting surface by the force-exerting element and 2) a second force component that urges the support against an attachment face extending transversely to the mounting surface. The attachment face is directly constituted by an attachment body, which can be fixed positively and free of play in a receptacle on the object to be measured.
    Type: Grant
    Filed: September 6, 2006
    Date of Patent: January 11, 2011
    Assignee: Dr. Johannes Heidenhain GmbH
    Inventors: Johannes Haunreiter, Alfred Affa
  • Patent number: 7788821
    Abstract: A linear measuring arrangement for measuring a relative position of two objects. The linear measuring arrangement includes a unit having a housing and a scale in the housing and a scanning unit, which can be shifted relative to the unit in a measuring direction, wherein the scanning unit is arranged inside the housing and includes a heat-generating electrical component. The arrangement further includes a mounting piece, which is fastened to the scanning unit by a coupling, which is rigid in the measuring direction and resilient transversely thereto, and which extends to a mounting area arranged outside of the housing. The arrangement further includes a heat-conducting element, which is designed for transferring heat generated by the heat generating electrical component to the mounting piece and permits relative movements between the mounting piece and the scanning unit at least transversely to the measuring direction.
    Type: Grant
    Filed: June 27, 2008
    Date of Patent: September 7, 2010
    Assignee: Dr. Johannes Heidenhain GmbH
    Inventors: Alfred Affa, Johannes Haunreiter
  • Publication number: 20090013552
    Abstract: A linear measuring arrangement for measuring a relative position of two objects. The linear measuring arrangement includes a unit having a housing and a scale in the housing and a scanning unit, which can be shifted relative to the unit in a measuring direction, wherein the scanning unit is arranged inside the housing and includes a heat-generating electrical component. The arrangement further includes a mounting piece, which is fastened to the scanning unit by a coupling, which is rigid in the measuring direction and resilient transversely thereto, and which extends to a mounting area arranged outside of the housing. The arrangement further includes a heat-conducting element, which is designed for transferring heat generated by the heat generating electrical component to the mounting piece and permits relative movements between the mounting piece and the scanning unit at least transversely to the measuring direction.
    Type: Application
    Filed: June 27, 2008
    Publication date: January 15, 2009
    Inventors: Alfred Affa, Johannes Haunreiter
  • Publication number: 20070056156
    Abstract: An arrangement for fastening a support of a scale of a linear measuring device on a mounting surface of an object to be measured. The arrangement includes a clamping jaw and a force-exerting element urging the clamping jaw against the support. The clamping jaw acts together with the support in such a way that the clamping jaw urges said support with a clamping force that includes 1) a first force component against the mounting surface by the force-exerting element and 2) a second force component that urges the support against an attachment face extending transversely to the mounting surface. The attachment face is directly constituted by an attachment body, which can be fixed positively and free of play in a receptacle on the object to be measured.
    Type: Application
    Filed: September 6, 2006
    Publication date: March 15, 2007
    Inventors: Johannes Haunreiter, Alfred Affa