Patents by Inventor Gunnar Michaelis

Gunnar Michaelis 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: 20210148171
    Abstract: A stator for a downhole motor configured for use in a downhole environment. includes an inner tubular member formed from a first metallic material having an outer surface and a helically lobed inner surface, and an outer tubular member comprising a second metallic material that is different from the first metallic material. The inner tubular member is connected to the outer tubular member by compressive force passing from the outer tubular member through the inner tubular member to a rigid mandrel removably disposed within the inner tubular member. The inner tubular member and the outer tubular member form the stator of the downhole motor.
    Type: Application
    Filed: January 6, 2021
    Publication date: May 20, 2021
    Inventors: Witali Huber, Gunnar Michaelis, Carsten Hohl, Erik Bartscherer, Harald Grimmer, Christian Fulda, Dorothea Marion Fischer, Thorsten Regener
  • Patent number: 10920493
    Abstract: A method of making a stator includes positioning an inner tubular member having an inner surface within an outer tubular member, installing a rigid mandrel within the inner tubular member, and applying a compressive force to at least one of the inner tubular member and the outer tubular member.
    Type: Grant
    Filed: February 21, 2017
    Date of Patent: February 16, 2021
    Assignee: BAKER HUGHES, A GE COMPANY, LLC
    Inventors: Witali Huber, Gunnar Michaelis, Carsten Hohl, Erik Bartscherer, Harald Grimmer, Christian Fulda, Dorothea Marion Fischer, Thorsten Regener
  • Publication number: 20180238114
    Abstract: A method of making a stator includes positioning an inner tubular member having an inner surface within an outer tubular member, installing a rigid mandrel within the inner tubular member, and applying a compressive force to at least one of the inner tubular member and the outer tubular member.
    Type: Application
    Filed: February 21, 2017
    Publication date: August 23, 2018
    Applicant: Baker Hughes Incorporated
    Inventors: Witali Huber, Gunnar Michaelis, Carsten Hohl, Erik Bartscherer, Harald Grimmer, Christian Fulda, Dorothea Marion Fischer, Thorsten Regener
  • Patent number: 9976227
    Abstract: An ECM method involves the use of a thin hollow electrode assembly that carries the electrolyte within and that is advanced relatively to the workpiece. The small profile of the electrode results in a minimal removal of metal in forming the desired rotor or stator shape. The electrode profile allows significant power consumption reduction or increased machining speed for a given rate of power input. The electrode can be a unitary ring shape or can be made of segments that are placed adjacent each other so that a continuous shape is cut. Not all the lobes of the stator or rotor have to be cut in the same pass. Electrode segments can be used to sequentially provide the desired lobe count in separate passes. The lobe shapes in the electrode can be slanted to get the desired rotor or stator pitch or they can be aligned with the workpiece axis.
    Type: Grant
    Filed: May 15, 2014
    Date of Patent: May 22, 2018
    Assignee: Baker Hughes, a GE company, LLC
    Inventors: Christoph Wangenheim, Gunnar Michaelis, Witali Huber, Thomas Uhlenberg, Hans H. Wolters
  • Publication number: 20170120338
    Abstract: A part including a material of the part having a first material property. A second material property of the first material or a different material, one of the first material property or the second material property being arranged to form a mark. A method for producing a part.
    Type: Application
    Filed: November 2, 2015
    Publication date: May 4, 2017
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: Frederik Goeing, Christoph Wangenheim, Gunnar Michaelis
  • Publication number: 20150329987
    Abstract: An ECM method involves the use of a thin hollow electrode assembly that carries the electrolyte within and that is advanced relatively to the workpiece. The small profile of the electrode results in a minimal removal of metal in forming the desired rotor or stator shape. The electrode profile allows significant power consumption reduction or increased machining speed for a given rate of power input. The electrode can be a unitary ring shape or can be made of segments that are placed adjacent each other so that a continuous shape is cut. Not all the lobes of the stator or rotor have to be cut in the same pass. Electrode segments can be used to sequentially provide the desired lobe count in separate passes. The lobe shapes in the electrode can be slanted to get the desired rotor or stator pitch or they can be aligned with the workpiece axis.
    Type: Application
    Filed: May 15, 2014
    Publication date: November 19, 2015
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: Christoph Wangenheim, Gunnar Michaelis, Witali Huber, Thomas Uhlenberg, Hans H. Wolters
  • Patent number: 8786866
    Abstract: In one aspect, an apparatus for determining an internal profile of a measured device is provided, which method in one embodiment may include: a housing having a first axis, a measuring device configured to emit a light beam along a second axis offset from the first axis; a deflection device configured to direct the emitted light beam to an inner surface of the measured device; and a driver configured to rotate the measuring device about the first axis.
    Type: Grant
    Filed: March 2, 2012
    Date of Patent: July 22, 2014
    Assignee: Baker Hughes Incorporated
    Inventors: Frederik Goeing, Marc Aldag, Gunnar Michaelis, Harald Grimmer
  • Publication number: 20130229667
    Abstract: In one aspect, an apparatus for determining an internal profile of a measured device is provided, which method in one embodiment may include: a housing having a first axis, a measuring device configured to emit a light beam along a second axis offset from the first axis; a deflection device configured to direct the emitted light beam to an inner surface of the measured device; and a driver configured to rotate the measuring device about the first axis.
    Type: Application
    Filed: March 2, 2012
    Publication date: September 5, 2013
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: Frederik Goeing, Marc Aldag, Gunnar Michaelis, Harald Grimmer