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).
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Publication number: 20250018781Abstract: 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: ApplicationFiled: September 30, 2024Publication date: January 16, 2025Inventors: Shaun Mepham, Christopher G. Baillie, James A. Raszkowski
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Patent number: 12103373Abstract: 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: GrantFiled: March 22, 2022Date of Patent: October 1, 2024Assignee: Allison Transmission, Inc.Inventors: Shaun Mepham, Christopher G. Baillie, James A. Raszkowski
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Patent number: 11519497Abstract: 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: GrantFiled: December 6, 2018Date of Patent: December 6, 2022Assignee: Allison Transmission, Inc.Inventors: Elizabeth P. Dick, Doug S. Burchett, James A. Raszkowski, William S. Reed
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Publication number: 20220297520Abstract: 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: ApplicationFiled: March 22, 2022Publication date: September 22, 2022Inventors: Shaun Mepham, Christopher G. Baillie, James A. Raszkowski
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Publication number: 20190178370Abstract: 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: ApplicationFiled: December 6, 2018Publication date: June 13, 2019Inventors: Elizabeth P. Dick, Doug S. Burchett, James A. Raszkowski, William S. Reed
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Patent number: 10145471Abstract: 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: GrantFiled: November 24, 2015Date of Patent: December 4, 2018Assignee: Allison Transmission, Inc.Inventors: James A. Raszkowski, Jeremy A. Turner, Brad Philip Pohl
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Patent number: 9746060Abstract: 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: GrantFiled: April 13, 2015Date of Patent: August 29, 2017Assignee: Allison Transmission, Inc.Inventors: Glen S. Hawkins, Jr., Brian Schoolcraft, James A. Raszkowski, David E. Earhart, Gary Reichanadter
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Patent number: 9719581Abstract: 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: GrantFiled: March 19, 2015Date of Patent: August 1, 2017Assignee: ALLISON TRANSMISSION, INC.Inventors: James A. Raszkowski, Jeremy Turner, Brian Schoolcraft, Brad P. Pohl
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Patent number: 9664269Abstract: 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: GrantFiled: December 29, 2015Date of Patent: May 30, 2017Assignee: Allison Transmissions, Inc.Inventors: Glen S. Hawkins, Jr., Brian Schoolcraft, James A. Raszkowski, David E. Earhart, Gary Reichanadter
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Publication number: 20160273626Abstract: 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: ApplicationFiled: March 19, 2015Publication date: September 22, 2016Inventors: James A. Raszkowski, Jeremy Turner, Brian Schoolcraft, Brad P. Pohl
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Patent number: 9382987Abstract: 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: GrantFiled: August 5, 2013Date of Patent: July 5, 2016Assignee: Allison Transmission, Inc.Inventors: Glen S. Hawkins, Jr., Brian Schoolcraft, James A. Raszkowski, David E. Earhart, Gary Reichanadter
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Publication number: 20160109007Abstract: 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: ApplicationFiled: December 29, 2015Publication date: April 21, 2016Inventors: Glen S. Hawkins, JR., Brian Schoolcraft, James A. Raszkowski, David E. Earhart, Gary Reichanadter
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Publication number: 20160076646Abstract: 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: ApplicationFiled: November 24, 2015Publication date: March 17, 2016Inventors: James A. Raszkowski, Jeremy A. Turner, Brad Philip Pohl
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Patent number: 9194439Abstract: 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: GrantFiled: March 14, 2014Date of Patent: November 24, 2015Assignee: Allison Transmission, Inc.Inventors: James A. Raszkowski, Jeremy A. Turner, Brad Philip Pohl
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Publication number: 20150240925Abstract: 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: ApplicationFiled: April 13, 2015Publication date: August 27, 2015Inventors: Glen S. Hawkins, JR., Brian Schoolcraft, James A. Raszkowski, David E. Earhart, Gary Reichanadter
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Patent number: 9109663Abstract: 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: GrantFiled: September 9, 2011Date of Patent: August 18, 2015Assignee: Allison Transmission, Inc.Inventors: Glen S. Hawkins, Jr., Brian Schoolcraft, James A. Raszkowski, David E. Earhart, Gary Reichanadter
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Patent number: 8910666Abstract: 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: GrantFiled: May 14, 2013Date of Patent: December 16, 2014Assignee: Allison Transmission, Inc.Inventors: Mark L. Anderson, James A. Raszkowski, James A. Redelman
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Publication number: 20140262672Abstract: 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: ApplicationFiled: March 14, 2014Publication date: September 18, 2014Inventors: James A. Raszkowski, Jeremy A. Turner, Brad Philip Pohl
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Patent number: 8617026Abstract: 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: GrantFiled: October 18, 2011Date of Patent: December 31, 2013Assignee: Allison Transmission, Inc.Inventor: James A. Raszkowski
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Publication number: 20130316869Abstract: 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: ApplicationFiled: August 5, 2013Publication date: November 28, 2013Applicant: Allison Transmission Inc.Inventors: Glen S. Hawkins, JR., Brian Schoolcraft, James A. Raszkowski, David E. Earhart, Gary Reichanadter