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: 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: 9022194Abstract: The present disclosure provides an actuation assembly for applying a mechanical diode clutch. The clutch includes an outer member, an inner member, and a strut. The actuation assembly includes a plate having an apply portion and a plurality of legs, where each of the plurality of legs has a first end coupled to the apply portion and a second end adapted to couple to a shift sleeve. A mechanism is coupled to the apply portion of the plate. The mechanism includes at least one biasing member. The plate is moveable between an unapply position and an apply position such that a movement from the unapply position to the apply position induces contact between the mechanism and the strut.Type: GrantFiled: June 17, 2013Date of Patent: May 5, 2015Assignee: Allison Transmission, Inc.Inventors: James Raszkowski, Robert Keith Dunlap, Jeremy Turner
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Publication number: 20140367216Abstract: The present disclosure provides an actuation assembly for applying a mechanical diode clutch. The clutch includes an outer member, an inner member, and a strut. The actuation assembly includes a plate having an apply portion and a plurality of legs, where each of the plurality of legs has a first end coupled to the apply portion and a second end adapted to couple to a shift sleeve. A mechanism is coupled to the apply portion of the plate. The mechanism includes at least one biasing member. The plate is moveable between an unapply position and an apply position such that a movement from the unapply position to the apply position induces contact between the mechanism and the strut.Type: ApplicationFiled: June 17, 2013Publication date: December 18, 2014Inventors: James Raszkowski, Robert Keith Dunlap, Jeremy Turner
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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: 8747014Abstract: An assembly comprises a shaft defining a longitudinal axis, a first component supported on the shaft, a second component supported on the shaft, and an isolator positioned between the first component and the second component. The second component configured such that the second component induces a force having a component parallel to the axis of the shaft. The force component parallel to the axis of the shaft induced by the second component is transferred directly to the shaft by the isolator and is isolated from the first component.Type: GrantFiled: January 9, 2009Date of Patent: June 10, 2014Assignee: Allison Transmission, Inc.Inventors: James Raszkowski, James Redelman
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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
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Publication number: 20130248029Abstract: 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: ApplicationFiled: May 14, 2013Publication date: September 26, 2013Inventors: Mark L. Anderson, James A. Raszkowski, James A. Redelman
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Patent number: 8439083Abstract: 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 3, 2011Date of Patent: May 14, 2013Assignee: Allison Transmission, Inc.Inventors: Mark L. Anderson, James A. Raszkowski, James A. Redelman
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Patent number: 8398519Abstract: A transmission includes an input member, an output member, and an intermediate member coaxially aligned with the input member and the output member. The transmission further includes at least one countershaft substantially parallel with the input member, output member and the intermediate member, and at least one gear associated with each of the input member, the output member, intermediate member, at least one countershaft. The transmission also includes a planetary gear set to operatively couple a gear of the at least one gear associated with the intermediate shaft with the output shaft, and a plurality of clutches to selectively define a torque transfer path from the input member to the output member via one or more of the intermediate member, first countershaft, second countershaft, and the at least one associated gears therewith. The plurality of clutches include a direct drive clutch to selectively couple the input member directly to the intermediate member.Type: GrantFiled: March 26, 2012Date of Patent: March 19, 2013Assignee: Allison Transmission, Inc.Inventor: James A. Raszkowski
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Publication number: 20120180585Abstract: A transmission includes an input member, an output member, and an intermediate member coaxially aligned with the input member and the output member. The transmission further includes at least one countershaft substantially parallel with the input member, output member and the intermediate member, and at least one gear associated with each of the input member, the output member, intermediate member, at least one countershaft. The transmission also includes a planetary gear set to operatively couple a gear of the at least one gear associated with the intermediate shaft with the output shaft, and a plurality of clutches to selectively define a torque transfer path from the input member to the output member via one or more of the intermediate member, first countershaft, second countershaft, and the at least one associated gears therewith. The plurality of clutches include a direct drive clutch to selectively couple the input member directly to the intermediate member.Type: ApplicationFiled: March 26, 2012Publication date: July 19, 2012Inventor: James A. RASZKOWSKI
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Publication number: 20120181135Abstract: 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: ApplicationFiled: October 18, 2011Publication date: July 19, 2012Inventor: James A. RASZKOWSKI
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Publication number: 20120122624Abstract: 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: September 9, 2011Publication date: May 17, 2012Inventors: Glen S. Hawkins, JR., Brian Schoolcraft, James A. Raszkowski, David E. Earhart, Gary Reichanadter
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Patent number: 8142322Abstract: A transmission includes an input member, an output member, and an intermediate member coaxially aligned with the input member and the output member. The transmission further includes at least one countershaft substantially parallel with the input member, output member and the intermediate member, and at least one gear associated with each of the input member, the output member, intermediate member, at least one countershaft. The transmission also includes a planetary gear set to operatively couple a gear of the at least one gear associated with the intermediate shaft with the output shaft, and a plurality of clutches to selectively define a torque transfer path from the input member to the output member via one or more of the intermediate member, first countershaft, second countershaft, and the at least one associated gears therewith. The plurality of clutches include a direct drive clutch to selectively couple the input member directly to the intermediate member.Type: GrantFiled: May 1, 2008Date of Patent: March 27, 2012Assignee: Allison Transmission, Inc.Inventor: James A. Raszkowski
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Publication number: 20110290361Abstract: 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: ApplicationFiled: May 3, 2011Publication date: December 1, 2011Inventors: Mark L. Anderson, James A. Raszkowski, James A. Redelman
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Patent number: 8038564Abstract: A transmission is provided having an input member, an output member, a dual clutch assembly, two countershaft gearing arrangements, one planetary gear set, a plurality of interconnecting members, and a plurality of torque transmitting devices. Each of the countershaft gearing arrangements includes a plurality of co-planar gear sets. The torque transmitting devices include a combination of clutches, brakes, and synchronizers.Type: GrantFiled: January 18, 2011Date of Patent: October 18, 2011Assignee: GM Global Technology Operations LLCInventors: David Earl Earhart, James A. Raszkowski