Patents by Inventor Elizabeth I. Wooden
Elizabeth I. Wooden 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).
-
Patent number: 8365893Abstract: A dual clutch selectively transmits torque from a flywheel to a dual input transmission. The transmission has two input shafts a first shaft and a second shaft that is a hollow sleeve shaft. The second shaft is concentric with the first shaft. The dual clutch has two clutch units to selectively couple a crankshaft of an engine to one of the two input shafts. More specifically, the dual clutch includes members such as a clutch housing rotationally fixed to the crankshaft through a flywheel and other members such hubs that are rotationally fixed to the input shafts. The clutches are actuated by a rotationally fixed clutch actuator. Axial loads on the clutches are transferred through a bearing to a fixed member.Type: GrantFiled: September 17, 2010Date of Patent: February 5, 2013Assignee: GM Global Technology Operations LLCInventors: Clinton E. Carey, James M. Hart, Elizabeth I. Wooden
-
Patent number: 8336411Abstract: A transmission includes an input member, an output transfer gear, first and second shaft or transmission input members, first and second counter shaft members, a plurality of co-planar gear sets, and a plurality of torque transmitting devices. The torque transmitting devices include a plurality of synchronizer assemblies and a dual clutch assembly. The transmission is operable to provide at least one reverse speed ratio and a plurality of forward speed ratios between the input member and the output member.Type: GrantFiled: February 12, 2010Date of Patent: December 25, 2012Assignee: GM Global Technology Operations LLCInventors: Craig S. Ross, Elizabeth I. Wooden, Scott H. Wittkopp
-
Publication number: 20120322604Abstract: A transmission is provided having an input member, an output member, four planetary gear sets, a plurality of coupling members and a plurality of torque-transmitting devices. Further, a hydraulic fluid control circuit is provided for controlling the operation of the plurality of torque-transmitting devices. The hydraulic fluid control circuit receives pressurized hydraulic fluid from an off-axis hydraulic fluid pump and has a plurality of fluid passages disposed in the transmission house, input member and other coupling members.Type: ApplicationFiled: August 28, 2012Publication date: December 20, 2012Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Patrick S. Portell, John A. Diemer, James M. Hart, Scott H. Wittkopp, Edwin T. Grochowski, Douglas John Dwenger, Elizabeth I. Wooden, Boris Burgman, Clinton E. Carey, Tejnder Singh
-
Patent number: 8262526Abstract: A transmission is provided having an input member, an output member, four planetary gear sets, a plurality of coupling members and a plurality of torque-transmitting devices. Further, a hydraulic fluid control circuit is provided for controlling the operation of the plurality of torque-transmitting devices. The hydraulic fluid control circuit receives pressurized hydraulic fluid from an off-axis hydraulic fluid pump and has a plurality of fluid passages disposed in the transmission house, input member and other coupling members.Type: GrantFiled: January 30, 2012Date of Patent: September 11, 2012Assignee: GM Global Technology Operations LLCInventors: Patrick S. Portell, John A. Diemer, James M. Hart, Scott H. Wittkopp, Edwin T. Grochowski, Douglas John Dwenger, Elizabeth I. Wooden, Boris Burgman, Clinton E. Carey, Tejinder Singh
-
Publication number: 20120178582Abstract: A transmission includes an input member, an output member, four planetary gear sets, a plurality of coupling members and a plurality of torque transmitting devices. The transmission input member is connected to a dry launch clutch. Each of the planetary gear sets includes first, second and third members. The torque transmitting devices are for example clutches and brakes.Type: ApplicationFiled: December 7, 2011Publication date: July 12, 2012Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Scott H. Wittkopp, James M. Hart, Elizabeth I. Wooden, Daryl A. Wilton
-
Patent number: 8197377Abstract: A transmission is provided having an input member, an output member, four planetary gear sets, a plurality of coupling members and a plurality of torque-transmitting devices. Further, a hydraulic fluid control circuit is provided for controlling the operation of the plurality of torque-transmitting devices. The hydraulic fluid control circuit receives pressurized hydraulic fluid from an off-axis hydraulic fluid pump and has a plurality of fluid passages disposed in the transmission house, input member and other coupling members.Type: GrantFiled: September 3, 2009Date of Patent: June 12, 2012Assignee: GM Global Technology Operations LLCInventors: James M. Hart, Andrew W. Phillips, Edwin T. Grochowski, Elizabeth I. Wooden, Scott H. Wittkopp, James B. Borgerson, Clinton E. Carey
-
Publication number: 20120129640Abstract: A transmission is provided having an input member, an output member, four planetary gear sets, a plurality of coupling members and a plurality of torque-transmitting devices. Further, a hydraulic fluid control circuit is provided for controlling the operation of the plurality of torque-transmitting devices. The hydraulic fluid control circuit receives pressurized hydraulic fluid from an off-axis hydraulic fluid pump and has a plurality of fluid passages disposed in the transmission house, input member and other coupling members.Type: ApplicationFiled: January 30, 2012Publication date: May 24, 2012Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Patrick S. Portell, John A. Diemer, James M. Hart, Scott H. Wittkopp, Edwin T. Grochowski, Douglas John Dwenger, Elizabeth I. Wooden, Boris Burgman, Clinton E. Carey, Tejinder Singh
-
Patent number: 8123014Abstract: A two way actuator in a torque transmitting assembly includes a piston member having a first side with a first contact surface and a second side opposite with a second contact surface. A backing member is sealed to the piston member. A first biasing member is disposed between the backing member and the piston member and a second biasing member is disposed between the piston member and a second member. The first torque transmitting device is engaged when a hydraulic fluid contacts the second side of the piston member and moves the piston member to contact the first torque transmitting device. The second torque transmitting device is engaged when the hydraulic fluid contacts the first side of the piston member and moves the piston member to contact the second torque transmitting device.Type: GrantFiled: February 6, 2009Date of Patent: February 28, 2012Assignee: GM Global Technology Operations LLCInventor: Elizabeth I. Wooden
-
Patent number: 8105196Abstract: A transmission is provided having an input member, an output member, four planetary gear sets, a plurality of coupling members and a plurality of torque-transmitting devices. Further, a hydraulic fluid control circuit is provided for controlling the operation of the plurality of torque-transmitting devices. The hydraulic fluid control circuit receives pressurized hydraulic fluid from an off-axis hydraulic fluid pump and has a plurality of fluid passages disposed in the transmission house, input member and other coupling members.Type: GrantFiled: May 1, 2009Date of Patent: January 31, 2012Assignee: GM Global Technology Operations LLCInventors: Patrick S. Portell, John A. Diemer, James M. Hart, Scott H. Wittkopp, Edwin T. Grochowski, Douglas John Dwenger, Elizabeth I. Wooden, Boris Burgman, Clinton E. Carey, Tejinder Singh
-
Patent number: 8075441Abstract: A transmission is provided having an input member, an output member, four planetary gear sets, a plurality of coupling members and a plurality of torque-transmitting devices. Further, a hydraulic fluid control circuit is provided for controlling the operation of the plurality of torque-transmitting devices. The hydraulic fluid control circuit receives pressurized hydraulic fluid from an off-axis hydraulic fluid pump and has a plurality of fluid passages disposed in the transmission house, input shaft, output shaft and other coupling members.Type: GrantFiled: January 28, 2009Date of Patent: December 13, 2011Assignee: GM Global Technology Operations LLCInventors: James M. Hart, Scott H. Wittkopp, Clinton E. Carey, Andrew W. Phillips, James B. Borgerson, Steven P. Moorman, Elizabeth I. Wooden, Edwin T. Grochowski
-
Patent number: 8025081Abstract: A shaft assembly includes a fluid transfer insert located within a bore of a shaft. The fluid transfer insert seals to the shaft and includes at least one fluid channel that communicates between a plurality of fluid ports located in the shaft. The fluid channel is defined by an outer surface of the fluid transfer insert.Type: GrantFiled: November 9, 2007Date of Patent: September 27, 2011Assignee: GM Global Technology Operations LLCInventors: Fredrick R. Poskie, Scott H. Wittkopp, Elizabeth I. Wooden
-
Publication number: 20110079481Abstract: A dual clutch selectively transmits torque from a flywheel to a dual input transmission. The transmission has two input shafts a first shaft and a second shaft that is a hollow sleeve shaft. The second shaft is concentric with the first shaft. The dual clutch has two clutch units to selectively couple a crankshaft of an engine to one of the two input shafts. More specifically, the dual clutch includes members such as a clutch housing rotationally fixed to the crankshaft through a flywheel and other members such hubs that are rotationally fixed to the input shafts. The clutches are actuated by a rotationally fixed clutch actuator. Axial loads on the clutches are transferred through a bearing to a fixed member.Type: ApplicationFiled: September 17, 2010Publication date: April 7, 2011Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.Inventors: Clinton E. Carey, James M. Hart, Elizabeth I. Wooden
-
Publication number: 20110053725Abstract: A transmission is provided having an input member, an output member, four planetary gear sets, a plurality of coupling members and a plurality of torque-transmitting devices. Further, a hydraulic fluid control circuit is provided for controlling the operation of the plurality of torque-transmitting devices. The hydraulic fluid control circuit receives pressurized hydraulic fluid from an off-axis hydraulic fluid pump and has a plurality of fluid passages disposed in the transmission house, input member and other coupling members.Type: ApplicationFiled: September 3, 2009Publication date: March 3, 2011Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.Inventors: James M. Hart, Andrew W. Phillips, Edwin T. Grochowski, Elizabeth I. Wooden, Scott H. Wittkopp, James B. Borgerson, Clinton E. Carey
-
Patent number: 7878940Abstract: A transmission is provided having an input member, an output member, four planetary gear sets, a plurality of coupling members and a plurality of torque transmitting devices. Each of the planetary gear sets includes a sun gear member, a planet carrier member, and a ring gear member. The torque transmitting devices include clutches and brakes arranged within a transmission housing.Type: GrantFiled: June 29, 2010Date of Patent: February 1, 2011Assignee: GM Global Technology Operations LLCInventors: Clinton E. Carey, James M. Hart, Scott H. Wittkopp, Andrew W. Phillips, Edwin T. Grochowski, Elizabeth I. Wooden
-
Patent number: 7867128Abstract: A transmission is provided having an input member, an output member, four planetary gear sets, a plurality of coupling members and a plurality of torque transmitting devices. Each of the planetary gear sets includes a sun gear member, a planet carrier member, and a ring gear member. The torque transmitting devices include clutches and brakes arranged within a transmission housing.Type: GrantFiled: June 29, 2010Date of Patent: January 11, 2011Assignee: GM Global Technology Operations, Inc.Inventors: Clinton E. Carey, James M. Hart, Scott H. Wittkopp, Andrew W. Phillips, Edwin T. Grochowski, Elizabeth I. Wooden
-
Patent number: 7867130Abstract: A transmission is provided having an input member, an output member, four planetary gear sets, a plurality of coupling members and a plurality of torque transmitting devices. Each of the planetary gear sets includes a sun gear member, a planet carrier member, and a ring gear member. The torque transmitting devices include clutches and brakes arranged within a transmission housing.Type: GrantFiled: June 29, 2010Date of Patent: January 11, 2011Assignee: GM Global Technology Operations, Inc.Inventors: Clinton E. Carey, James M. Hart, Scott H. Wittkopp, Andrew W. Phillips, Edwin T. Grochowski, Elizabeth I. Wooden
-
Patent number: 7867129Abstract: A transmission is provided having an input member, an output member, four planetary gear sets, a plurality of coupling members and a plurality of torque transmitting devices. Each of the planetary gear sets includes a sun gear member, a planet carrier member, and a ring gear member. The torque transmitting devices include clutches and brakes arranged within a transmission housing.Type: GrantFiled: June 29, 2010Date of Patent: January 11, 2011Assignee: GM Global Technology Operations, Inc.Inventors: Clinton E. Carey, James M. Hart, Scott H. Wittkopp, Andrew W. Phillips, Edwin T. Grochowski, Elizabeth I. Wooden
-
Patent number: 7862466Abstract: A transmission is provided having an input member, an output member, four planetary gear sets, a plurality of coupling members and a plurality of torque transmitting devices. Each of the planetary gear sets includes a sun gear member, a planet carrier member, and a ring gear member. The torque transmitting devices include clutches and brakes arranged within a transmission housing.Type: GrantFiled: June 29, 2010Date of Patent: January 4, 2011Assignee: GM Global Technology Operations, Inc.Inventors: Clinton E. Carey, James M. Hart, Scott H. Wittkopp, Andrew W. Phillips, Edwin T. Grochowski, Elizabeth I. Wooden
-
Patent number: 7862467Abstract: A transmission is provided having an input member, an output member, four planetary gear sets, a plurality of coupling members and a plurality of torque transmitting devices. Each of the planetary gear sets includes a sun gear member, a planet carrier member, and a ring gear member. The torque transmitting devices include clutches and brakes arranged within a transmission housing.Type: GrantFiled: June 29, 2010Date of Patent: January 4, 2011Assignee: GM Global Technology Operations, Inc.Inventors: Clinton E. Carey, James M. Hart, Scott H. Wittkopp, Andrew W. Phillips, Edwin T. Grochowski, Elizabeth I. Wooden
-
Patent number: 7837590Abstract: A transmission assembly includes a clutch housing, a gear arrangement disposed within the clutch housing, and a fixed component. A brake having a housing and a hub is also included. The housing is coupled to the fixed component and the hub is coupled to the gear arrangement. The brake is disposed external to the clutch housing and cooperates with the gear arrangement to provide at least one forward or reverse gear ratio.Type: GrantFiled: March 12, 2007Date of Patent: November 23, 2010Assignee: GM Global Technology Operations, Inc.Inventors: Fredrick R. Poskie, Elizabeth I. Wooden, Scott H. Wittkopp, James W. Haynes