Patents by Inventor James A. Raszkowski

James A. Raszkowski 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: 20250018781
    Abstract: An electrified axle assembly includes a first and second motor, a first and second idler shaft, and one or more output shafts mechanically engaged with the first and/or second idler shafts and one or more axles. In some embodiments, the electrified axle assembly may include two output shafts, with each output shaft meshed with a corresponding one of the idler shafts and a corresponding one of the axles. In other embodiments, the electrified axle assembly may include a single output shaft meshed with each of the idler shaft and each axle. Additional single motor and single and dual speed embodiments are also disclosed.
    Type: Application
    Filed: September 30, 2024
    Publication date: January 16, 2025
    Inventors: Shaun Mepham, Christopher G. Baillie, James A. Raszkowski
  • Patent number: 12103373
    Abstract: An electrified axle assembly includes a first and second motor, a first and second idler shaft, and one or more output shafts mechanically engaged with the first and/or second idler shafts and one or more axles. In some embodiments, the electrified axle assembly may include two output shafts, with each output shaft meshed with a corresponding one of the idler shafts and a corresponding one of the axles. In other embodiments, the electrified axle assembly may include a single output shaft meshed with each of the idler shaft and each axle. Additional single motor and single and dual speed embodiments are also disclosed.
    Type: Grant
    Filed: March 22, 2022
    Date of Patent: October 1, 2024
    Assignee: Allison Transmission, Inc.
    Inventors: Shaun Mepham, Christopher G. Baillie, James A. Raszkowski
  • Patent number: 11519497
    Abstract: Embodiments of the present disclosure provide a transmission spool valve/valve body arrangement facilitating the manufacturing of the valve body chambers accommodating the spool valves. Specifically, embodiments of the present disclosure provides a valve body having a common datum from which machining for each valve cavity formed through a particular face of a valve body can be referenced. In particular embodiments of the disclosure, a spring biases a solenoid assembly for each valve against a datum (common or otherwise). In more particular embodiments of the disclosure, the spring biases the solenoid assembly in a direction opposite to the direction of actuation of the spool valve upon actuation of the solenoid assembly. The spring bias positively displaces the solenoid assembly to the datum for precision location of the solenoid relative to the various hydraulic ports of the respective valve chamber. A variety of spring clip arrangements are provided to index the solenoid to the valve body.
    Type: Grant
    Filed: December 6, 2018
    Date of Patent: December 6, 2022
    Assignee: Allison Transmission, Inc.
    Inventors: Elizabeth P. Dick, Doug S. Burchett, James A. Raszkowski, William S. Reed
  • Publication number: 20220297520
    Abstract: An electrified axle assembly includes a first and second motor, a first and second idler shaft, and one or more output shafts mechanically engaged with the first and/or second idler shafts and one or more axles. In some embodiments, the electrified axle assembly may include two output shafts, with each output shaft meshed with a corresponding one of the idler shafts and a corresponding one of the axles. In other embodiments, the electrified axle assembly may include a single output shaft meshed with each of the idler shaft and each axle. Additional single motor and single and dual speed embodiments are also disclosed.
    Type: Application
    Filed: March 22, 2022
    Publication date: September 22, 2022
    Inventors: Shaun Mepham, Christopher G. Baillie, James A. Raszkowski
  • Publication number: 20190178370
    Abstract: Embodiments of the present disclosure provide a transmission spool valve/valve body arrangement facilitating the manufacturing of the valve body chambers accommodating the spool valves. Specifically, embodiments of the present disclosure provides a valve body having a common datum from which machining for each valve cavity formed through a particular face of a valve body can be referenced. In particular embodiments of the disclosure, a spring biases a solenoid assembly for each valve against a datum (common or otherwise). In more particular embodiments of the disclosure, the spring biases the solenoid assembly in a direction opposite to the direction of actuation of the spool valve upon actuation of the solenoid assembly. The spring bias positively displaces the solenoid assembly to the datum for precision location of the solenoid relative to the various hydraulic ports of the respective valve chamber. A variety of spring clip arrangements are provided to index the solenoid to the valve body.
    Type: Application
    Filed: December 6, 2018
    Publication date: June 13, 2019
    Inventors: Elizabeth P. Dick, Doug S. Burchett, James A. Raszkowski, William S. Reed
  • Patent number: 10145471
    Abstract: A dog clutch operable to bypass a variator of a transmission is disclosed. The dog clutch includes a housing engaged with an input ring of the variator. The dog clutch also includes a piston engaged with the housing and movable from a first position in which the piston is disengaged from an output ring of the variator to a second position in which the piston is engaged with the output ring. The variator input ring and output ring are locked together when the dog clutch is in the second position to prevent the variator from producing continuously variable torque output. The variator is operable to produce continuously-variable torque output when the dog clutch is in the first position.
    Type: Grant
    Filed: November 24, 2015
    Date of Patent: December 4, 2018
    Assignee: Allison Transmission, Inc.
    Inventors: James A. Raszkowski, Jeremy A. Turner, Brad Philip Pohl
  • Patent number: 9746060
    Abstract: The present invention provides an infinitely variable transmission for a powered vehicle which includes a power source. The transmission includes an input shaft and an output shaft, the output shaft being spaced from the input shaft. The transmission further includes a variator coupled between the input shaft and output shaft. In addition, at least two planetary gearsets are disposed adjacent to the variator and an input coupler is configured to selectively couple the variator to the power source.
    Type: Grant
    Filed: April 13, 2015
    Date of Patent: August 29, 2017
    Assignee: Allison Transmission, Inc.
    Inventors: Glen S. Hawkins, Jr., Brian Schoolcraft, James A. Raszkowski, David E. Earhart, Gary Reichanadter
  • Patent number: 9719581
    Abstract: A continuously variable planetary (CVP) transmission, comprising a movable stator radially disposed about an axis, the movable stator having at least a first slot. The CVP transmission having a clip removably coupled to the first slot where the clip defining a channel and a planet spindle defining a first end where the first end is disposed within the channel of the clip.
    Type: Grant
    Filed: March 19, 2015
    Date of Patent: August 1, 2017
    Assignee: ALLISON TRANSMISSION, INC.
    Inventors: James A. Raszkowski, Jeremy Turner, Brian Schoolcraft, Brad P. Pohl
  • Patent number: 9664269
    Abstract: The present invention provides an infinitely variable transmission for a powered vehicle which includes a power source. The transmission includes an input shaft and an output shaft, the output shaft being spaced from the input shaft. The transmission further includes a variator coupled between the input shaft and output shaft. In addition, at least two planetary gearsets are disposed adjacent to the variator and an input coupler is configured to selectively couple the variator to the power source.
    Type: Grant
    Filed: December 29, 2015
    Date of Patent: May 30, 2017
    Assignee: Allison Transmissions, Inc.
    Inventors: Glen S. Hawkins, Jr., Brian Schoolcraft, James A. Raszkowski, David E. Earhart, Gary Reichanadter
  • Publication number: 20160273626
    Abstract: A continuously variable planetary (CVP) transmission, comprising a movable stator radially disposed about an axis, the movable stator having at least a first slot. The CVP transmission having a clip removably coupled to the first slot where the clip defining a channel and a planet spindle defining a first end where the first end is disposed within the channel of the clip.
    Type: Application
    Filed: March 19, 2015
    Publication date: September 22, 2016
    Inventors: James A. Raszkowski, Jeremy Turner, Brian Schoolcraft, Brad P. Pohl
  • Patent number: 9382987
    Abstract: The present invention provides an infinitely variable transmission for a powered vehicle which includes a power source. The transmission includes an input shaft and an output shaft, the output shaft being spaced from the input shaft. The transmission further includes a variator coupled between the input shaft and output shaft. In addition, at least two planetary gearsets are disposed adjacent to the variator and an input coupler is configured to selectively couple the variator to the power source.
    Type: Grant
    Filed: August 5, 2013
    Date of Patent: July 5, 2016
    Assignee: Allison Transmission, Inc.
    Inventors: Glen S. Hawkins, Jr., Brian Schoolcraft, James A. Raszkowski, David E. Earhart, Gary Reichanadter
  • Publication number: 20160109007
    Abstract: The present invention provides an infinitely variable transmission for a powered vehicle which includes a power source. The transmission includes an input shaft and an output shaft, the output shaft being spaced from the input shaft. The transmission further includes a variator coupled between the input shaft and output shaft. In addition, at least two planetary gearsets are disposed adjacent to the variator and an input coupler is configured to selectively couple the variator to the power source.
    Type: Application
    Filed: December 29, 2015
    Publication date: April 21, 2016
    Inventors: Glen S. Hawkins, JR., Brian Schoolcraft, James A. Raszkowski, David E. Earhart, Gary Reichanadter
  • Publication number: 20160076646
    Abstract: A dog clutch operable to bypass a variator of a transmission is disclosed. The dog clutch includes a housing engaged with an input ring of the variator. The dog clutch also includes a piston engaged with the housing and movable from a first position in which the piston is disengaged from an output ring of the variator to a second position in which the piston is engaged with the output ring. The variator input ring and output ring are locked together when the dog clutch is in the second position to prevent the variator from producing continuously variable torque output. The variator is operable to produce continuously-variable torque output when the dog clutch is in the first position.
    Type: Application
    Filed: November 24, 2015
    Publication date: March 17, 2016
    Inventors: James A. Raszkowski, Jeremy A. Turner, Brad Philip Pohl
  • Patent number: 9194439
    Abstract: A dog clutch operable to bypass a variator of a transmission is disclosed. The dog clutch includes a housing engaged with an input ring of the variator. The dog clutch also includes a piston engaged with the housing and movable from a first position in which the piston is disengaged from an output ring of the variator to a second position in which the piston is engaged with the output ring. The variator input ring and output ring are locked together when the dog clutch is in the second position to prevent the variator from producing continuously variable torque output. The variator is operable to produce continuously-variable torque output when the dog clutch is in the first position.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: November 24, 2015
    Assignee: Allison Transmission, Inc.
    Inventors: James A. Raszkowski, Jeremy A. Turner, Brad Philip Pohl
  • Publication number: 20150240925
    Abstract: The present invention provides an infinitely variable transmission for a powered vehicle which includes a power source. The transmission includes an input shaft and an output shaft, the output shaft being spaced from the input shaft. The transmission further includes a variator coupled between the input shaft and output shaft. In addition, at least two planetary gearsets are disposed adjacent to the variator and an input coupler is configured to selectively couple the variator to the power source.
    Type: Application
    Filed: April 13, 2015
    Publication date: August 27, 2015
    Inventors: Glen S. Hawkins, JR., Brian Schoolcraft, James A. Raszkowski, David E. Earhart, Gary Reichanadter
  • Patent number: 9109663
    Abstract: The present invention provides an infinitely variable transmission for a powered vehicle which includes a power source. The transmission includes an input shaft and an output shaft, the output shaft being spaced from the input shaft. The transmission further includes a variator coupled between the input shaft and output shaft. In addition, at least two planetary gearsets are disposed adjacent to the variator and an input coupler is configured to selectively couple the variator to the power source.
    Type: Grant
    Filed: September 9, 2011
    Date of Patent: August 18, 2015
    Assignee: Allison Transmission, Inc.
    Inventors: Glen S. Hawkins, Jr., Brian Schoolcraft, James A. Raszkowski, David E. Earhart, Gary Reichanadter
  • Patent number: 8910666
    Abstract: An apparatus for axially transferring fluid may comprise an elongated shaft defining a first fluid passageway axially therethrough and a second fluid passageway from an outer surface thereof to the first fluid passageway. An elongated tube member defines an outer surface that is received within the first fluid passageway and a third fluid passageway axially therethrough. A plurality of axial channels are defined between the tube member and the first fluid passageway or along the tube member separately from the third fluid passageway. At least one of the plurality of axial channels define a first opening near one end thereof that receives fluid from a source of fluid and a second opening axially spaced apart from the first opening and that aligns with the second fluid passageway such that fluid may be transferred by the at least one fluid passageway from the source of fluid through the second fluid passageway.
    Type: Grant
    Filed: May 14, 2013
    Date of Patent: December 16, 2014
    Assignee: Allison Transmission, Inc.
    Inventors: Mark L. Anderson, James A. Raszkowski, James A. Redelman
  • Publication number: 20140262672
    Abstract: A dog clutch operable to bypass a variator of a transmission is disclosed. The dog clutch includes a housing engaged with an input ring of the variator. The dog clutch also includes a piston engaged with the housing and movable from a first position in which the piston is disengaged from an output ring of the variator to a second position in which the piston is engaged with the output ring. The variator input ring and output ring are locked together when the dog clutch is in the second position to prevent the variator from producing continuously variable torque output. The variator is operable to produce continuously-variable torque output when the dog clutch is in the first position.
    Type: Application
    Filed: March 14, 2014
    Publication date: September 18, 2014
    Inventors: James A. Raszkowski, Jeremy A. Turner, Brad Philip Pohl
  • Patent number: 8617026
    Abstract: A mode shift assembly for a transmission comprises has a first side coupled to a rotational input, a second side coupled to a rotational output, and an actuator. The actuator acts on the first side to move the first side between a first position in which the first and second engagement surfaces are disengaged and a second position. In the first position, rotation between the first and second sides is independent. In the second position, the first and second engagement surfaces are engaged such that rotation is transferred from the first side to the second side.
    Type: Grant
    Filed: October 18, 2011
    Date of Patent: December 31, 2013
    Assignee: Allison Transmission, Inc.
    Inventor: James A. Raszkowski
  • Publication number: 20130316869
    Abstract: The present invention provides an infinitely variable transmission for a powered vehicle which includes a power source. The transmission includes an input shaft and an output shaft, the output shaft being spaced from the input shaft. The transmission further includes a variator coupled between the input shaft and output shaft. In addition, at least two planetary gearsets are disposed adjacent to the variator and an input coupler is configured to selectively couple the variator to the power source.
    Type: Application
    Filed: August 5, 2013
    Publication date: November 28, 2013
    Applicant: Allison Transmission Inc.
    Inventors: Glen S. Hawkins, JR., Brian Schoolcraft, James A. Raszkowski, David E. Earhart, Gary Reichanadter