Patents by Inventor Alois Brandl

Alois Brandl 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: 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: 7637019
    Abstract: A rotary encoder includes a first component group and a second component group, the two component groups being rotatably arranged relative to each other in a measuring operation. The first component group has a detector system, a housing part having at least one wedge-shaped element, and a clamping ring having at least one cam. The second component group includes a code disk and a shaft. The housing part is arranged radially outside of the shaft, and a force having a radial directional component oriented toward the axis is applicable on the at least one wedge-shaped element via the at least one cam by a turning motion of the clamping ring relative to the housing part such that the shaft is able to be clamped on the housing part outside of the measuring operation.
    Type: Grant
    Filed: November 21, 2007
    Date of Patent: December 29, 2009
    Assignee: Dr. Johannes Heidenhain GmbH
    Inventor: Alois Brandl
  • Patent number: 7392588
    Abstract: A rotary encoder includes two component groups that are rotatably arranged relative to each other about an axis. The second component group includes a shaft having a central bore hole, a shoulder and a ridge having an outer surface, and a ring element having an inner surface and an actuation device. In addition, the rotary encoder has a component, which is arranged between the outer surface and the inner surface of the ring element. Both points on the inner surface of the ring element as well as points on the outer surface of the shaft have different distances with respect to the axis such that, via the actuation device, the ring element rests on the shoulder so that a radial force acts on the ridge via the component and a machine part is clampable.
    Type: Grant
    Filed: November 21, 2007
    Date of Patent: July 1, 2008
    Assignee: Dr. Johannes Heidenhain GmbH
    Inventor: Alois Brandl
  • Publication number: 20080120851
    Abstract: A rotary encoder includes two component groups that are rotatably arranged relative to each other about an axis. The second component group includes a shaft having a central bore hole, a shoulder and a ridge having an outer surface, and a ring element having an inner surface and an actuation device. In addition, the rotary encoder has a component, which is arranged between the outer surface and the inner surface of the ring element. Both points on the inner surface of the ring element as well as points on the outer surface of the shaft have different distances with respect to the axis such that, via the actuation device, the ring element rests on the shoulder so that a radial force acts on the ridge via the component and a machine part is clampable.
    Type: Application
    Filed: November 21, 2007
    Publication date: May 29, 2008
    Inventor: Alois BRANDL
  • Publication number: 20080120850
    Abstract: A rotary encoder includes a first component group and a second component group, the two component groups being rotatably arranged relative to each other in a measuring operation. The first component group has a detector system, a housing part having at least one wedge-shaped element, and a clamping ring having at least one cam. The second component group includes a code disk and a shaft. The housing part is arranged radially outside of the shaft, and a force having a radial directional component oriented toward the axis is applicable on the at least one wedge-shaped element via the at least one cam by a turning motion of the clamping ring relative to the housing part such that the shaft is able to be clamped on the housing part outside of the measuring operation.
    Type: Application
    Filed: November 21, 2007
    Publication date: May 29, 2008
    Inventor: Alois BRANDL
  • Publication number: 20050161304
    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: Application
    Filed: January 22, 2003
    Publication date: July 28, 2005
    Applicant: Dr. Johannes Heidenhain Gmbh
    Inventors: Alois Brandl, Johann Mitterreiter, Michael Schwabe
  • 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