Patents by Inventor Christopher J. Mielke

Christopher J. Mielke 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: 20230287924
    Abstract: A fastener for attaching a first part and a second part includes a body comprising a first body portion, a second body portion, a flange arranged between the first body portion and the second body portion and extending radially outwardly from the body. A bore extends in an axial direction through the body and including an inner surface with threads. A plurality of splines extend radially outwardly from the second body portion and is configured to prevent rotation when the second body portion is inserted into an opening in the first part. An opening to the bore at the second body portion defines a concentric edge and an inclined plane extending from the concentric edge.
    Type: Application
    Filed: March 8, 2022
    Publication date: September 14, 2023
    Inventors: Michael C. GAUNT, Christopher J. MIELKE
  • Patent number: 10464598
    Abstract: Methods and apparatus are provided for damage risk indication of a steering system of a vehicle. The apparatus includes a sensor system and a processing device. The sensor system is configured to detect a velocity of a servo unit of a steering system of the vehicle. The processing device is configured to determine an acceleration value of the servo unit and to compare the acceleration value, velocity values and thresholds of the servo unit with an acceleration value threshold, and to generate a warning signal if the acceleration value of the servo unit exceeds the acceleration value threshold. Thus, a damage risk is determined and the vehicle can be subjected to further damage investigation.
    Type: Grant
    Filed: July 18, 2017
    Date of Patent: November 5, 2019
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: John T. Zuzelski, Scott R. Kloess, Christopher J. Mielke, Bo Yu, Nicholas V. Katcherian
  • Publication number: 20190023313
    Abstract: Methods and apparatus are provided for damage risk indication of a steering system of a vehicle. The apparatus includes a sensor system and a processing device. The sensor system is configured to detect a velocity of a servo unit of a steering system of the vehicle. The processing device is configured to determine an acceleration value of the servo unit and to compare the acceleration value, velocity values and thresholds of the servo unit with an acceleration value threshold, and to generate a warning signal if the acceleration value of the servo unit exceeds the acceleration value threshold. Thus, a damage risk is determined and the vehicle can be subjected to further damage investigation.
    Type: Application
    Filed: July 18, 2017
    Publication date: January 24, 2019
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: John T. Zuzelski, Scott R. Kloess, Christopher J. Mielke, Bo Yu, Nicholas V. Katcherian
  • Patent number: 9290198
    Abstract: A joint assembly having a shaft with a retention notch, a joint coupling, a spring clip and a full insertion clip. The joint coupling including a body having a bore, with the bore receiving the shaft, and the body including a secondary fastener hole extending normal to the bore. The spring clip including a fixed end secured to the main body, a flexible middle portion, and a finger at an opposed end, the finger engaging the shaft as the shaft slides into the bore and extending into the retention notch when the shaft is in a fully inserted position. The full insertion clip having a first end secure to the main body, a flexible portion and an opposed second end having a fastener alignment hole, the fastener alignment hole aligning with the secondary fastener hole when not flexed and misaligning with the secondary fastener hole when flexed.
    Type: Grant
    Filed: June 19, 2012
    Date of Patent: March 22, 2016
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: George E. Doerr, Christopher J. Mielke, Miroslaw Zaloga
  • Patent number: 9156494
    Abstract: A steering system for a vehicle includes a sector shaft defining a bore therein and rotatable about a central longitudinal axis. The steering system also includes a lash adjuster translatable within the bore along the central longitudinal axis. In addition, the steering system includes an end cap cover abutting the lash adjuster and spaced apart from the sector shaft to define a first cavity between the end cap cover and the sector shaft, and a housing abutting the end cap cover and spaced apart from the sector shaft to define a second cavity between the housing and the sector shaft. The steering system also includes a seal surrounding and abutting the sector shaft, wherein the seal separates the first cavity from the second cavity.
    Type: Grant
    Filed: October 18, 2013
    Date of Patent: October 13, 2015
    Assignee: GM Global Technology Operations LLC
    Inventors: Miroslaw Zaloga, Marco E. Rodriguez, Christopher J. Mielke
  • Patent number: 9086097
    Abstract: A yoke for receiving a shaft includes a collar. The collar defines a shaft slot, into which the shaft may be inserted. A first pinch tab extends from the collar and has a first folded end, which is folded toward the shaft slot. A second pinch tab extends from the collar and has a second folded end, which is folded away from the shaft slot.
    Type: Grant
    Filed: November 21, 2012
    Date of Patent: July 21, 2015
    Assignee: GM Global Technology Operations LLC
    Inventors: Christopher J. Mielke, Miroslaw Zaloga, Peter J. Judis, Monica M. Ligerakis
  • Publication number: 20150108746
    Abstract: A steering system for a vehicle includes a sector shaft defining a bore therein and rotatable about a central longitudinal axis. The steering system also includes a lash adjuster translatable within the bore along the central longitudinal axis. In addition, the steering system includes an end cap cover abutting the lash adjuster and spaced apart from the sector shaft to define a first cavity between the end cap cover and the sector shaft, and a housing abutting the end cap cover and spaced apart from the sector shaft to define a second cavity between the housing and the sector shaft. The steering system also includes a seal surrounding and abutting the sector shaft, wherein the seal separates the first cavity from the second cavity.
    Type: Application
    Filed: October 18, 2013
    Publication date: April 23, 2015
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Miroslaw Zaloga, Marco E. Rodriguez, Christopher J. Mielke
  • Patent number: 8844954
    Abstract: A steering system includes a wheel rotatable between on-center and off-center positions, and a shaft having teeth. The shaft defines a cavity and is rotatable about an axis that is perpendicular to the teeth. The system includes a nut having cogs defining grooves therebetween, wherein each tooth is matable with a groove. The system includes a lash adjuster translatable within the cavity, and a retainer contacting the adjuster and shaft, and configured for positioning the shaft along the axis as the wheel rotates. A center one of the gear teeth meshes with one of the grooves to define a first gap having a first thickness therebetween when the wheel is in the on-center position. An outer one of the gear teeth meshes with an outer groove to define a second gap having a second thickness that is greater than the first thickness when the wheel is in the off-center position.
    Type: Grant
    Filed: October 31, 2012
    Date of Patent: September 30, 2014
    Assignee: GM Global Technology Operations LLC
    Inventors: Marco E. Rodriguez, Miroslaw Zaloga, Christopher J. Mielke
  • Publication number: 20140140761
    Abstract: A yoke for receiving a shaft includes a collar. The collar defines a shaft slot, into which the shaft may be inserted. A first pinch tab extends from the collar and has a first folded end, which is folded toward the shaft slot. A second pinch tab extends from the collar and has a second folded end, which is folded away from the shaft slot.
    Type: Application
    Filed: November 21, 2012
    Publication date: May 22, 2014
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Christopher J. Mielke, Miroslaw Zaloga, Peter J. Judis, Monica M. Ligerakis
  • Publication number: 20140116173
    Abstract: A steering system includes a wheel rotatable between on-center and off-center positions, and a shaft having teeth. The shaft defines a cavity and is rotatable about an axis that is perpendicular to the teeth. The system includes a nut having cogs defining grooves therebetween, wherein each tooth is matable with a groove. The system includes a lash adjuster translatable within the cavity, and a retainer contacting the adjuster and shaft, and configured for positioning the shaft along the axis as the wheel rotates. A center one of the gear teeth meshes with one of the grooves to define a first gap having a first thickness therebetween when the wheel is in the on-center position. An outer one of the gear teeth meshes with an outer groove to define a second gap having a second thickness that is greater than the first thickness when the wheel is in the off-center position.
    Type: Application
    Filed: October 31, 2012
    Publication date: May 1, 2014
    Applicant: GM Global Technology Operations LLC
    Inventors: Marco E. Rodriquez, Miroslaw Zaloga, Christopher J. Mielke
  • Publication number: 20140034410
    Abstract: An electric power steering system equipped with rack travel end stops which prevent damage in the event of an over-speed condition. An abutment body is attached to each end of the power steering rack in externally concentric relation thereto so as to abut a respective housing abutment of the rack housing in the event of an over-speed condition of an electric power steering system and thereby eliminating tie rod assembly abutment with the housing.
    Type: Application
    Filed: July 31, 2012
    Publication date: February 6, 2014
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Walter D. Jackson, Christopher J. Mielke, Scott R. Kloess, George E. Doerr, Marco E. Rodriguez
  • Publication number: 20130336712
    Abstract: A joint assembly having a shaft with a retention notch, a joint coupling, a spring clip and a full insertion clip. The joint coupling including a body having a bore, with the bore receiving the shaft, and the body including a secondary fastener hole extending normal to the bore. The spring clip including a fixed end secured to the main body, a flexible middle portion, and a finger at an opposed end, the finger engaging the shaft as the shaft slides into the bore and extending into the retention notch when the shaft is in a fully inserted position. The full insertion clip having a first end secure to the main body, a flexible portion and an opposed second end having a fastener alignment hole, the fastener alignment hole aligning with the secondary fastener hole when not flexed and misaligning with the secondary fastener hole when flexed.
    Type: Application
    Filed: June 19, 2012
    Publication date: December 19, 2013
    Applicant: GM Global Technology Operations LLC
    Inventors: George E. Doerr, Christopher J. Mielke, Miroslaw Zaloga
  • Patent number: 8567554
    Abstract: A power steering system for transferring torque to a sector gear includes a first ball screw and a first ball nut circumscribing the first ball screw. The first ball nut is in torque-transfer communication with the first ball screw through a plurality of ball bearings and is meshed or engaged with the sector gear for torque transfer therewith. An electric motor is configured to selectively supply torque to the sector gear through the first ball nut.
    Type: Grant
    Filed: March 23, 2011
    Date of Patent: October 29, 2013
    Assignee: GM Global Technology Operations LLC
    Inventors: Miroslaw Zaloga, George E. Doerr, Christopher J. Mielke, Scott R. Kloess, Mauro Pacheco Escobedo
  • Patent number: 8517422
    Abstract: A steering wheel alignment system for a vehicle having a steering wheel and steering unit that includes a first shaft operatively connected to the steering unit, a second shaft operatively connected to the steering wheel, and a coupling disposed between the first and second shafts to couple the shafts so that rotation of the steering wheel operates the steering unit to steer the vehicle. The coupling includes: a bolt, one of the shafts is hollow to telescope over the other shaft, and each shaft has a radial extending hole therethrough for receiving the bolt to attach the first and second shafts together. The radial extending hole through one of the shafts is elongated in the radial direction so that when the bolt extends through the holes of the first and second shafts the elongation of the hole defines a range of radial adjusting movement of the shafts relative one another until tightening of the bolt clamps the first and second shafts together against further relative rotation.
    Type: Grant
    Filed: June 21, 2011
    Date of Patent: August 27, 2013
    Assignee: GM Global Technology Operations LLC
    Inventors: Miroslaw Zaloga, George E. Doerr, Christopher J. Mielke
  • Patent number: 8511928
    Abstract: An internal tube is inserted into an external tube to align first bolt holes provided through opposed walls of the external tube with second bolt holes provided through opposed walls of the internal tube. A bolt is inserted through the first bolt holes and through the second bolt holes to connect the tubes together when the bolt holes are aligned. An error-proofing clip is mounted in the internal tube and has a tongue extending from the end thereof to reach into the external tube and block the insertion of the bolt through the first bolt holes of the external tube until the insertion of the internal tube has proceeded fully to bring the first bolt holes of the external tube and the second bolt holes of the internal tube into alignment with one another, thereby preventing a premature installation of the bolt through only the first bolt holes.
    Type: Grant
    Filed: July 25, 2011
    Date of Patent: August 20, 2013
    Assignee: GM Global Technology Operations LLC
    Inventors: George E. Doerr, Christopher J. Mielke, Miroslaw Zaloga
  • Publication number: 20130032430
    Abstract: A parallelogram steering system transfers torque to a relay rod in response to steering commands. The steering system includes an input member configured to receive the steering commands. A pitman arm and an idler arm are both movably connected to the relay rod. An idler shaft is operatively connected to the idler arm for common rotation therewith. The steering system also includes at least one electric motor, which is configured to selectively supply assist torque to the idler shaft in response to the steering commands.
    Type: Application
    Filed: August 4, 2011
    Publication date: February 7, 2013
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Miroslaw Zaloga, George E. Doerr, Scott R. Kloess, Christopher J. Mielke, Mauro Pacheco Escobedo
  • Publication number: 20130026750
    Abstract: An internal tube is inserted into an external tube to align first bolt holes provided through opposed walls of the external tube with second bolt holes provided through opposed walls of the internal tube. A bolt is inserted through the first bolt holes and through the second bolt holes to connect the tubes together when the bolt holes are aligned. An error-proofing clip is mounted in the internal tube and has a tongue extending from the end thereof to reach into the external tube and block the insertion of the bolt through the first bolt holes of the external tube until the insertion of the internal tube has proceeded fully to bring the first bolt holes of the external tube and the second bolt holes of the internal tube into alignment with one another, thereby preventing a premature installation of the bolt through only the first bolt holes.
    Type: Application
    Filed: July 25, 2011
    Publication date: January 31, 2013
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: George E. Doerr, Christopher J. Mielke, Miroslaw Zaloga
  • Patent number: 8360197
    Abstract: A power steering system includes an input shaft operatively connected to an input member, and a sector gear operatively connected to a pitman arm. A first ball screw is formed on the input shaft. A first ball nut circumscribes the first ball screw and is in torque-transfer communication therewith through a plurality of ball bearings. A first rack is rigidly attached to the first ball nut, and is meshed with the sector gear for torque transfer therewith. A second ball screw is not substantially coaxial with the first ball screw. A second ball nut circumscribes the second ball screw and is in torque-transfer communication with the second ball screw through the ball bearings. A second rack is meshed with the sector gear for torque transfer therewith. An electric motor is configured to selectively supply torque to the sector gear through the second ball screw.
    Type: Grant
    Filed: March 23, 2011
    Date of Patent: January 29, 2013
    Assignee: GM Global Technology Operations LLC
    Inventors: Mauro Pacheco Escobedo, Miroslaw Zaloga, Christopher J. Mielke, George E. Doerr, Scott R. Kloess
  • Publication number: 20120326424
    Abstract: A steering wheel alignment system for a vehicle having a steering wheel and steering unit that includes a first shaft operatively connected to the steering unit, a second shaft operatively connected to the steering wheel, and a coupling disposed between the first and second shafts to couple the shafts so that rotation of the steering wheel operates the steering unit to steer the vehicle. The coupling includes: a bolt, one of the shafts is hollow to telescope over the other shaft, and each shaft has a radial extending hole therethrough for receiving the bolt to attach the first and second shafts together. The radial extending hole through one of the shafts is elongated in the radial direction so that when the bolt extends through the holes of the first and second shafts the elongation of the hole defines a range of radial adjusting movement of the shafts relative one another until tightening of the bolt clamps the first and second shafts together against further relative rotation.
    Type: Application
    Filed: June 21, 2011
    Publication date: December 27, 2012
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Miroslaw Zaloga, George E. Doerr, Christopher J. Mielke
  • Publication number: 20120241243
    Abstract: A power steering system for transferring torque to a sector gear includes a first ball screw and a first ball nut circumscribing the first ball screw. The first ball nut is in torque-transfer communication with the first ball screw through a plurality of ball bearings and is meshed or engaged with the sector gear for torque transfer therewith. An electric motor is configured to selectively supply torque to the sector gear through the first ball nut.
    Type: Application
    Filed: March 23, 2011
    Publication date: September 27, 2012
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Miroslaw Zaloga, George E. Doerr, Christopher J. Mielke, Scott R. Kloess, Mauro Pacheco Escobedo