Patents by Inventor Gregory A. Marsh

Gregory A. Marsh 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: 20250330061
    Abstract: An electrically-operated electric drive module for use in a vehicle framework that is configured for a powertrain that includes an internal combustion engine. The electrically-operated electric drive module permits the vehicle to be converted to an electrically propelled vehicle in a manner that is cost-effective and which is relatively low in weight.
    Type: Application
    Filed: July 2, 2025
    Publication date: October 23, 2025
    Applicant: AMERICAN AXLE & MANUFACTURING, INC.
    Inventors: Matthew A. UMERLEY, Frederick E. ZINK, Jonathan P. PRICHARD, James P. DOWNS, Gregory A. MARSH, Matthew T. BLAKEMAN, Steven GRIDER, Paul J. VALENTE
  • Patent number: 12381447
    Abstract: An electrically-operated electric drive module for use in a vehicle framework that is configured for a powertrain that includes an internal combustion engine. The electrically-operated electric drive module permits the vehicle to be converted to an electrically propelled vehicle in a manner that is cost-effective and which is relatively low in weight.
    Type: Grant
    Filed: August 30, 2023
    Date of Patent: August 5, 2025
    Assignee: AMERICAN AXLE & MANUFACTURING, INC.
    Inventors: Matthew A. Umerley, Frederick E. Zink, Jonathan P. Prichard, James P. Downs, Gregory A. Marsh, Matthew T. Blakeman, Steven Grider, Paul J. Valente
  • Publication number: 20230412046
    Abstract: An electrically-operated electric drive module for use in a vehicle framework that is configured for a powertrain that includes an internal combustion engine. The electrically-operated electric drive module permits the vehicle to be converted to an electrically propelled vehicle in a manner that is cost-effective and which is relatively low in weight.
    Type: Application
    Filed: August 30, 2023
    Publication date: December 21, 2023
    Inventors: Matthew A. UMERLEY, Frederick E. ZINK, Jonathan P. PRICHARD, James P. DOWNS, Gregory A. MARSH, Matthew T. BLAKEMAN, Steven GRIDER, Paul J. VALENTE
  • Patent number: 11750063
    Abstract: An electrically-operated electric drive module for use in a vehicle framework that is configured for a powertrain that includes an internal combustion engine. The electrically-operated electric drive module permits the vehicle to be converted to an electrically propelled vehicle in a manner that is cost-effective and which is relatively low in weight.
    Type: Grant
    Filed: March 15, 2022
    Date of Patent: September 5, 2023
    Assignee: American Axle & Manufacturing, Inc.
    Inventors: Matthew A. Umerley, Frederick E. Zink, Jonathan P. Prichard, James P. Downs, Gregory A. Marsh, Matthew T. Blakeman, Steven Grider, Paul J. Valente
  • Publication number: 20230128748
    Abstract: An electrically-operated electric drive module for use in a vehicle framework that is configured for a powertrain that includes an internal combustion engine. The electrically-operated electric drive module permits the vehicle to be converted to an electrically propelled vehicle in a manner that is cost-effective and which is relatively low in weight.
    Type: Application
    Filed: March 15, 2022
    Publication date: April 27, 2023
    Inventors: Matthew A. UMERLEY, Frederick E. ZINK, Jonathan P. PRICHARD, James P. DOWNS, Gregory A. MARSH, Matthew T. BLAKEMAN, Steven GRIDER, Paul J. VALENTE
  • Patent number: 11371600
    Abstract: A front axle assembly with an axle housing that has first and second housing halves that each include a main housing portion, a tubular portion and a steering yoke. The main housing portion defines a cavity that houses at least a portion of a speed differentiation mechanism. The tubular portions are fixedly coupled to an associated one of the main housing portions and extend between the main housing portion and an associated one of the steering yokes. Each steering yoke is fixedly coupled to an associated tubular portion. An annular joint structure is formed where the first and second first housing halves are coupled to one another. The annular joint structure is formed about the rotary axis such that one of the first and second housing halves is inserted into the other one of the first and second housing halves along an insertion axis that is coincident with the rotary axis.
    Type: Grant
    Filed: September 25, 2018
    Date of Patent: June 28, 2022
    Assignee: American Axle & Manufacturing, Inc.
    Inventors: Gregory A. Marsh, Jonathan P. Prichard, Frederick E. Zink, James P. Downs, Joseph M. Endreszl
  • Patent number: 11125312
    Abstract: Various improvements to axle assemblies are disclosed herein that are especially adapted for highly robust and compact configurations for use in front (i.e., steering) axle configurations.
    Type: Grant
    Filed: May 16, 2018
    Date of Patent: September 21, 2021
    Assignee: American Axle & Manufacturing, Inc.
    Inventors: Gregory A. Marsh, Matthew T. Blakeman
  • Publication number: 20210003205
    Abstract: A front axle assembly with an axle housing that has first and second housing halves that each include a main housing portion, a tubular portion and a steering yoke. The main housing portion defines a cavity that houses at least a portion of a speed differentiation mechanism. The tubular portions are fixedly coupled to an associated one of the main housing portions and extend between the main housing portion and an associated one of the steering yokes. Each steering yoke is fixedly coupled to an associated tubular portion. An annular joint structure is formed where the first and second first housing halves are coupled to one another. The annular joint structure is formed about the rotary axis such that one of the first and second housing halves is inserted into the other one of the first and second housing halves along an insertion axis that is coincident with the rotary axis.
    Type: Application
    Filed: September 25, 2018
    Publication date: January 7, 2021
    Inventors: Gregory A. MARSH, Jonathan P. PRICHARD, Frederick E. ZINK, James P. DOWNS, Joseph M. ENDRESZL
  • Patent number: 10160314
    Abstract: A vehicle with a primary driveline that is configured to distribute rotary power to a first set of vehicle wheels and a power transmitting device that can be selectively operated to transmit rotary power to a secondary driveline. The power transmitting device has an input member, which is driven by the primary driveline, and an output member that is selectively coupled to the input member to receive rotary power therefrom. The secondary driveline comprises a differential, a pair of shafts, and a side shaft coupling that selectively interrupts power transmission between the differential and one of the shafts.
    Type: Grant
    Filed: November 11, 2016
    Date of Patent: December 25, 2018
    Assignee: AMERICAN AXLE & MANUFACTURING, INC.
    Inventors: Gregory A. Marsh, James P. Downs, Richard S. Silbert
  • Publication number: 20180259049
    Abstract: Various improvements to axle assemblies are disclosed herein that are especially adapted for highly robust and compact configurations for use in front (i.e., steering) axle configurations.
    Type: Application
    Filed: May 16, 2018
    Publication date: September 13, 2018
    Inventors: Gregory A. MARSH, Matthew T. BLAKEMAN
  • Publication number: 20170057352
    Abstract: A vehicle with a primary driveline that is configured to distribute rotary power to a first set of vehicle wheels and a power transmitting device that can be selectively operated to transmit rotary power to a secondary driveline. The power transmitting device has an input member, which is driven by the primary driveline, and an output member that is selectively coupled to the input member to receive rotary power therefrom. The secondary driveline comprises a differential, a pair of shafts, and a side shaft coupling that selectively interrupts power transmission between the differential and one of the shafts.
    Type: Application
    Filed: November 11, 2016
    Publication date: March 2, 2017
    Inventors: Gregory A. Marsh, James P. Downs, Richard S. Silbert
  • Patent number: 9493069
    Abstract: A vehicle with a primary driveline that is configured to distribute rotary power to a first set of vehicle wheels and a power transmitting device that can be selectively operated to transmit rotary power to a secondary driveline. The power transmitting device has an input member, which is driven by the primary driveline, and an output member that is selectively coupled to the input member to receive rotary power therefrom. The secondary driveline comprises a differential, a pair of shafts, and a side shaft coupling that selectively interrupts power transmission between the differential and one of the shafts.
    Type: Grant
    Filed: August 21, 2013
    Date of Patent: November 15, 2016
    Assignee: AMERICAN AXLE & MANUFACTURING, INC.
    Inventors: Gregory A. Marsh, James P. Downs, Richard S. Silbert
  • Patent number: 9333965
    Abstract: A drive train having a locking differential and a control unit for controlling operation of the locking differential. The control unit is responsive to selected vehicle characteristics to sua sponte activate or inactivate a locking mechanism of the locking differential to cause the locking differential to operate in a locked manner or an unlocked manner, respectively. A method for operating a locking differential is also provided. The method includes: utilizing only preselected vehicle criteria indicative of the operational state of the vehicle to identify a situation in which a locking mechanism associated with the locking differential is to be energized; and responsively energizing the locking mechanism.
    Type: Grant
    Filed: March 13, 2014
    Date of Patent: May 10, 2016
    Assignee: American Axle & Manufacturing, Inc.
    Inventors: Gregory A. Marsh, Russell T. Capito, John C. Hibbler
  • Publication number: 20160121823
    Abstract: The circuit controls powertrain, drivetrain, vehicle suspension and accessory components of an automotive vehicle to programmatically provide different drive and handling performance using a portable personal electronic telecommunication device having memory and a processor. The circuit includes a protocol converter circuit coupled to receive electric power from an electrical power system of the automotive vehicle, and has at least one port to electrically couple to at least one actuator that supplies control to the controlled component of the automotive vehicle. The protocol converter circuit provides a communication channel by which communication is established with a portable personal electronic telecommunication device.
    Type: Application
    Filed: October 13, 2015
    Publication date: May 5, 2016
    Inventors: Chad R. Umscheid, John C. Hibbler, Gregory A. Marsh
  • Patent number: 9259967
    Abstract: An axle assembly having a carrier housing, a pair of axle tubes, a differential case, a pair of differential bearings and a pair of bearing adjusters. The carrier housing includes a cavity, which is configured to receive the differential case, and a pair of axle tubes that are mounted to the carrier housing. The differential case includes bearing bores into which the outer races of the differential bearings are received. The bearing adjusters are threaded to the carrier housing and support the differential bearings on a side opposite the differential case.
    Type: Grant
    Filed: March 30, 2015
    Date of Patent: February 16, 2016
    Assignee: American Axle & Manufacturing, Inc.
    Inventors: Gregory A. Marsh, Matthew T. Blakeman
  • Publication number: 20150306909
    Abstract: An axle assembly having a carrier housing, a pair of axle tubes, a differential case, a pair of differential bearings and a pair of bearing adjusters. The carrier housing includes a cavity, which is configured to receive the differential case, and a pair of axle tubes that are mounted to the carrier housing. The differential case includes bearing bores into which the outer races of the differential bearings are received. The bearing adjusters are threaded to the carrier housing and support the differential bearings on a side opposite the differential case.
    Type: Application
    Filed: March 30, 2015
    Publication date: October 29, 2015
    Inventors: Gregory A. Marsh, Matthew T. Blakeman
  • Patent number: 9140349
    Abstract: An axle assembly having a carrier housing, a locking differential assembly, a pair of differential bearing and an actuator assembly. The carrier housing includes a cavity. The locking differential assembly includes a differential case that is received in the cavity. The differential case includes a bearing bore into which an outer race of the differential bearing is received. The actuator assembly includes a sleeve that is movable between a first sleeve position, which is configured to cause the locking differential assembly to operate in an unlocked mode, and a second sleeve position that is configured to cause the locking differential assembly to operate in a locked mode. The sleeve is at least partly radially in-line with the differential bearing when the sleeve is in the first and/or second sleeve positions such that a plane taken perpendicular to the axis extends through both the sleeve and the differential bearing.
    Type: Grant
    Filed: October 31, 2014
    Date of Patent: September 22, 2015
    Assignee: American Axle & Manufacturing, Inc.
    Inventors: Gregory A. Marsh, Matthew T. Blakeman
  • Patent number: 8997606
    Abstract: An assembly that includes a tube mount, a tube, a first fillet weld, and a second fillet weld. The tube mount has a tubular side wall, a plurality of circumferentially spaced apart notches formed on a first end of the tubular side wall, and a securing aperture formed through the tubular side wall. The notches form a plurality of teeth. The tube is received into the tube mount. The first fillet weld couples the tube to the tube mount. The first fillet weld is formed about a perimeter the first end such that each of the first welds is formed substantially completely over the entirety of the teeth. The second fillet weld couples the tube to the tube mount. The second fillet weld is formed about a perimeter of the securing aperture such that the second fillet weld is formed substantially completely over an inside perimeter of the securing aperture.
    Type: Grant
    Filed: March 11, 2013
    Date of Patent: April 7, 2015
    Assignee: American Axle & Manufacturing, Inc.
    Inventors: Zugang Huang, James P. Downs, Gregory A. Marsh
  • Publication number: 20140251081
    Abstract: An assembly that includes a tube mount, a tube, a first fillet weld, and a second fillet weld. The tube mount has a tubular side wall, a plurality of circumferentially spaced apart notches formed on a first end of the tubular side wall, and a securing aperture formed through the tubular side wall. The notches form a plurality of teeth. The tube is received into the tube mount. The first fillet weld couples the tube to the tube mount. The first fillet weld is formed about a perimeter the first end such that each of the first welds is formed substantially completely over the entirety of the teeth. The second fillet weld couples the tube to the tube mount. The second fillet weld is formed about a perimeter of the securing aperture such that the second fillet weld is formed substantially completely over an inside perimeter of the securing aperture.
    Type: Application
    Filed: March 11, 2013
    Publication date: September 11, 2014
    Applicant: AMERICAN AXLE & MANUFACTURING, INC.
    Inventors: Zugang Huang, James P. Downs, Gregory A. Marsh
  • Publication number: 20140213412
    Abstract: A drive train having a locking differential and a control unit for controlling operation of the locking differential. The control unit is responsive to selected vehicle characteristics to sua sponte activate or inactivate a locking mechanism of the locking differential to cause the locking differential to operate in a locked manner or an unlocked manner, respectively. A method for operating a locking differential is also provided. The method includes: utilizing only preselected vehicle criteria indicative of the operational state of the vehicle to identify a situation in which a locking mechanism associated with the locking differential is to be energized; and responsively energizing the locking mechanism.
    Type: Application
    Filed: March 13, 2014
    Publication date: July 31, 2014
    Applicant: American Axle & Manufacturing, Inc.
    Inventors: Gregory A. Marsh, Russell T. Capito, John C. Hibbler