Patents by Inventor Douglas S. Burchett
Douglas S. Burchett 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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Patent number: 11143273Abstract: A transmission coupling assembly for transferring torque in a transmission from a first rotatable component to a second rotatable component and a method of assembling a transmission coupling assembly are disclosed. The transmission coupling assembly may comprise a first operative transmission component interconnected with a second operative transmission component. The first and second operative transmission components may each include a body adapted to be coupled to a respective one of the first and second rotatable components and a plurality of engagement features extending from the body along an axis of the respective operative transmission components. The plurality of engagement features are configured to intermesh during assembly of the transmission coupling assembly.Type: GrantFiled: February 27, 2019Date of Patent: October 12, 2021Assignee: Allison Transmission, Inc.Inventors: Douglas S. Burchett, Rick Platt
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Patent number: 10634221Abstract: A multi-speed transmission including a plurality of planetary gearsets and a plurality of selective couplers to achieve at least nine forward speed ratios is disclosed. The plurality of planetary gearsets may include a first planetary gearset, a second planetary gearset, a third planetary gearset, and a fourth planetary gearset. The plurality of selective couplers may include a number of clutches and a number of brakes. The multi-speed transmission may have four planetary gearsets and six selective couplers. The six selective couplers may include three clutches and three brakes.Type: GrantFiled: July 11, 2019Date of Patent: April 28, 2020Assignee: Allison Transmission, Inc.Inventors: Eric S. Tryon, Douglas S. Burchett
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Publication number: 20190331202Abstract: A multi-speed transmission including a plurality of planetary gearsets and a plurality of selective couplers to achieve at least nine forward speed ratios is disclosed. The plurality of planetary gearsets may include a first planetary gearset, a second planetary gearset, a third planetary gearset, and a fourth planetary gearset. The plurality of selective couplers may include a number of clutches and a number of brakes. The multi-speed transmission may have four planetary gearsets and six selective couplers. The six selective couplers may include three clutches and three brakes.Type: ApplicationFiled: July 11, 2019Publication date: October 31, 2019Inventors: Eric S. Tryon, Douglas S. Burchett
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Publication number: 20190264781Abstract: A transmission coupling assembly for transferring torque in a transmission from a first rotatable component to a second rotatable component and a method of assembling a transmission coupling assembly are disclosed. The transmission coupling assembly may comprise a first operative transmission component interconnected with a second operative transmission component. The first and second operative transmission components may each include a body adapted to be coupled to a respective one of the first and second rotatable components and a plurality of engagement features extending from the body along an axis of the respective operative transmission components. The plurality of engagement features are configured to intermesh during assembly of the transmission coupling assembly.Type: ApplicationFiled: February 27, 2019Publication date: August 29, 2019Inventors: Douglas S. Burchett, Rick Platt
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Patent number: 10364867Abstract: A multi-speed transmission including a plurality of planetary gearsets and a plurality of selective couplers to achieve at least nine forward speed ratios is disclosed. The plurality of planetary gearsets may include a first planetary gearset, a second planetary gearset, a third planetary gearset, and a fourth planetary gearset. The plurality of selective couplers may include a number of clutches and a number of brakes. The multi-speed transmission may have four planetary gearsets and six selective couplers. The six selective couplers may include three clutches and three brakes.Type: GrantFiled: April 10, 2017Date of Patent: July 30, 2019Assignee: Allison Transmission, Inc.Inventors: Eric S. Tryon, Douglas S. Burchett
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Patent number: 10352407Abstract: A multi-speed transmission including a plurality of planetary gearsets and a plurality of selective couplers to achieve at least nine forward speed ratios is disclosed. The plurality of planetary gearsets may include a first planetary gearset, a second planetary gearset, a third planetary gearset, and a fourth planetary gearset. The plurality of selective couplers may include a number of clutches and a number of brakes. The multi-speed transmission may have four planetary gearsets and six selective couplers. The six selective couplers may include three clutches and three brakes.Type: GrantFiled: November 22, 2017Date of Patent: July 16, 2019Assignee: Allison Transmission, Inc.Inventors: Jezrah Horen, Douglas S. Burchett, Michael Foster
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Patent number: 10072736Abstract: A multi-speed transmission including a plurality of planetary gearsets and a plurality of selective couplers to achieve at least nine forward speed ratios is disclosed. The plurality of planetary gearsets may include a first planetary gearset, a second planetary gearset, a third planetary gearset, and a fourth planetary gearset. The plurality of selective couplers may include a number of clutches and a number of brakes. The multi-speed transmission may have four planetary gearsets and six selective couplers. The six selective couplers may include three clutches and three brakes.Type: GrantFiled: September 28, 2016Date of Patent: September 11, 2018Assignee: Allison Transmission, Inc.Inventors: Douglas S. Burchett, Brian Schoolcraft, Michael J. E. Richardson
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Publication number: 20180106334Abstract: A multi-speed transmission including a plurality of planetary gearsets and a plurality of selective couplers to achieve at least nine forward speed ratios is disclosed. The plurality of planetary gearsets may include a first planetary gearset, a second planetary gearset, a third planetary gearset, and a fourth planetary gearset. The plurality of selective couplers may include a number of clutches and a number of brakes. The multi-speed transmission may have four planetary gearsets and six selective couplers. The six selective couplers may include three clutches and three brakes.Type: ApplicationFiled: November 22, 2017Publication date: April 19, 2018Inventors: Jezrah Horen, Douglas S. Burchett, Michael Foster
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Patent number: 9933045Abstract: A multi-speed transmission including a plurality of planetary gearsets and a plurality of selective couplers to achieve at least nine forward speed ratios is disclosed. The plurality of planetary gearsets may include a first planetary gearset, a second planetary gearset, a third planetary gearset, and a fourth planetary gearset. The plurality of selective couplers may include a number of clutches and a number of brakes. The multi-speed transmission may have four planetary gearsets and six selective couplers. The six selective couplers may include three clutches and three brakes.Type: GrantFiled: September 28, 2016Date of Patent: April 3, 2018Assignee: ALLISON TRANSMISSION, INC.Inventors: Jezrah Horen, Douglas S. Burchett, Michael Foster
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Publication number: 20180087622Abstract: A multi-speed transmission including a plurality of planetary gearsets and a plurality of selective couplers to achieve at least nine forward speed ratios is disclosed. The plurality of planetary gearsets may include a first planetary gearset, a second planetary gearset, a third planetary gearset, and a fourth planetary gearset. The plurality of selective couplers may include a number of clutches and a number of brakes. The multi-speed transmission may have four planetary gearsets and six selective couplers. The six selective couplers may include three clutches and three brakes.Type: ApplicationFiled: April 10, 2017Publication date: March 29, 2018Inventors: Eric S. Tryon, Douglas S. Burchett
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Publication number: 20180087614Abstract: A multi-speed transmission including a plurality of planetary gearsets and a plurality of selective couplers to achieve at least nine forward speed ratios is disclosed. The plurality of planetary gearsets may include a first planetary gearset, a second planetary gearset, a third planetary gearset, and a fourth planetary gearset. The plurality of selective couplers may include a number of clutches and a number of brakes. The multi-speed transmission may have four planetary gearsets and six selective couplers. The six selective couplers may include three clutches and three brakes.Type: ApplicationFiled: September 28, 2016Publication date: March 29, 2018Inventors: Douglas S. Burchett, David E. Earhart
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Publication number: 20180087615Abstract: A multi-speed transmission including a plurality of planetary gearsets and a plurality of selective couplers to achieve at least nine forward speed ratios is disclosed. The plurality of planetary gearsets may include a first planetary gearset, a second planetary gearset, a third planetary gearset, and a fourth planetary gearset. The plurality of selective couplers may include a number of clutches and a number of brakes. The multi-speed transmission may have four planetary gearsets and six selective couplers. The six selective couplers may include three clutches and three brakes.Type: ApplicationFiled: September 28, 2016Publication date: March 29, 2018Inventors: Douglas S. Burchett, Brian Schoolcraft, Michael J.E. Richardson
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Publication number: 20180087609Abstract: A multi-speed transmission including a plurality of planetary gearsets and a plurality of selective couplers to achieve at least nine forward speed ratios is disclosed. The plurality of planetary gearsets may include a first planetary gearset, a second planetary gearset, a third planetary gearset, and a fourth planetary gearset. The plurality of selective couplers may include a number of clutches and a number of brakes. The multi-speed transmission may have four planetary gearsets and six selective couplers. The six selective couplers may include three clutches and three brakes.Type: ApplicationFiled: September 28, 2016Publication date: March 29, 2018Inventors: Jezrah Horen, Douglas S. Burchett, Michael Foster
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Patent number: 9927008Abstract: A multi-speed transmission including a plurality of planetary gearsets and a plurality of selective couplers to achieve at least nine forward speed ratios is disclosed. The plurality of planetary gearsets may include a first planetary gearset, a second planetary gearset, a third planetary gearset, and a fourth planetary gearset. The plurality of selective couplers may include a number of clutches and a number of brakes. The multi-speed transmission may have four planetary gearsets and six selective couplers. The six selective couplers may include three clutches and three brakes.Type: GrantFiled: September 28, 2016Date of Patent: March 27, 2018Assignee: ALLISON TRANSMISSION, INC.Inventors: Douglas S. Burchett, David E. Earhart
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Patent number: 9869377Abstract: A multi-speed transmission including a plurality of planetary gearsets and a plurality of selective couplers to achieve at least nine forward speed ratios is disclosed. The plurality of planetary gearsets may include a first planetary gearset, a second planetary gearset, a third planetary gearset, and a fourth planetary gearset. The plurality of selective couplers may include a number of clutches and a number of brakes. The multi-speed transmission may have four planetary gearsets and six selective couplers. The six selective couplers may include three clutches and three brakes.Type: GrantFiled: April 10, 2017Date of Patent: January 16, 2018Assignee: Allison Transmission, Inc.Inventors: Douglas S. Burchett, Michael J. E. Richardson
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Patent number: 8137229Abstract: A modular transmission assembly includes a transmission housing that defines a hollow interior. The transmission housing extends along a central axis between a front end and a rear end. A rear motor module is disposed in, and is operatively connected to, the transmission housing. An inner module is disposed in, and is operatively connected to, the transmission housing. A main shaft is disposed along the central axis such that each of the rear and inner modules radially surround the main shaft. A front motor is disposed in the transmission housing and radially surrounds the main shaft. The inner module is axially disposed between the rear motor module and the front motor. An input module is connected to the front end of the transmission housing. The front motor is axially disposed between the inner module and the input module.Type: GrantFiled: November 20, 2008Date of Patent: March 20, 2012Assignee: GM Global Technology Operations LLCInventors: Gregory W. Kempf, Kenneth D. Schoch, Fredrick R. Poskie, Douglas S. Burchett, Frederick W. Rhoads