Patents by Inventor Scott H. Wittkopp

Scott H. Wittkopp 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).

  • Dual clutch five speed transmission
    Patent number: 8297140
    Abstract: A transmission connectable to an input member and has an output member, first and second shafts, first and second countershafts, 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: Grant
    Filed: March 12, 2010
    Date of Patent: October 30, 2012
    Assignee: GM Global Technology Operations LLC
    Inventors: Craig S. Ross, Scott H. Wittkopp, Edward W. Mellet
  • Powertrain having a multi-speed transmission
    Patent number: 8292767
    Abstract: A powertrain is provided having a multi-speed transmission. The 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: Grant
    Filed: May 11, 2009
    Date of Patent: October 23, 2012
    Assignee: GM Global Technology Operations LLC
    Inventors: James B. Borgerson, Donald L. Dusenberry, Andrew W. Phillips, Scott H. Wittkopp, Clinton E. Carey, James M. Hart
  • EIGHT SPEED DUAL CLUTCH TRANSMISSION
    Publication number: 20120260756
    Abstract: A transmission is connectable to an input member and includes an output transfer gear, first and second shaft members, first and second countershaft members, a plurality of co-planar gear sets, and a plurality of torque transmitting devices. The torque transmitting devices include a plurality of gears, 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: Application
    Filed: April 14, 2011
    Publication date: October 18, 2012
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Edward W. Mellet, Scott H. Wittkopp, Craig S. Ross
  • Dual clutch transmission
    Patent number: 8286522
    Abstract: A transmission includes an input member, an output member, first and second shafts, a countershaft, a reverse shaft, 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: Grant
    Filed: March 3, 2010
    Date of Patent: October 16, 2012
    Assignee: GM Global Technology Operations LLC
    Inventors: Edward W. Mellet, Craig S. Ross, Scott H. Wittkopp
  • Selectable one-way clutch
    Patent number: 8276725
    Abstract: A clutch for transmitting torque between a first member and a second member includes a locking plate having an engagement groove, a carrier disposed adjacent the locking plate, an engagement member rotatably supported in an aperture of the carrier, an apply biasing element, a release plate, a release biasing element, and an electromagnet. The engagement member is rotatable between an engagement position and a release position.
    Type: Grant
    Filed: July 20, 2009
    Date of Patent: October 2, 2012
    Assignee: GM Global Technology Operations LC
    Inventors: Shawn H Swales, Scott H. Wittkopp, Norman Schoenek
  • Multi-speed transmission
    Patent number: 8277354
    Abstract: 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 first, second and third members. The torque transmitting devices include clutches and a brake. The torque transmitting mechanisms are selectively engageable in combinations of at least two to establish at least eight forward speed ratios and at least one reverse speed ratio between the input member and the output member.
    Type: Grant
    Filed: July 18, 2011
    Date of Patent: October 2, 2012
    Assignee: GM Global Technology Operations LLC
    Inventors: Andrew W. Phillips, Gregory Hukill, James M. Hart, Clinton E. Carey, Scott H. Wittkopp
  • Multi-speed transmission having three planetary gear sets
    Patent number: 8277357
    Abstract: A transmission is provided having an input member, an output member, three planetary gear sets, a plurality of coupling members and a plurality of torque transmitting devices. Each of the planetary gear sets includes first, second and third members. The torque transmitting devices include clutches and brakes.
    Type: Grant
    Filed: August 31, 2011
    Date of Patent: October 2, 2012
    Assignee: GM Global Technology Operations LLC
    Inventors: Scott H. Wittkopp, Andrew W. Phillips, Clinton E. Carey, James M. Hart
  • Multi-speed transmission
    Patent number: 8277356
    Abstract: 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 first, second and third members. The torque transmitting devices may include clutches and brakes.
    Type: Grant
    Filed: July 12, 2011
    Date of Patent: October 2, 2012
    Assignee: GM Global Technology Operations LLC
    Inventors: James M. Hart, Clinton E. Carey, Andrew W. Phillips, Scott H. Wittkopp
  • Multi-speed transmission having stacked planetary gear sets
    Patent number: 8277355
    Abstract: A transmission is has an input member, an output member, two stacked planetary gear sets, a third planetary gear set, a plurality of coupling members and a plurality of torque transmitting devices. The stacked planetary gear sets have a first, second, third, fourth and fifth member and the third planetary gear set has a first, second and third member. The torque transmitting devices include clutches and brakes.
    Type: Grant
    Filed: July 7, 2010
    Date of Patent: October 2, 2012
    Assignee: GM Global Technology Operations LLC
    Inventors: James M. Hart, Scott H. Wittkopp, James B. Borgerson
  • CLUTCH AND GEAR ARRANGEMENT FOR A FRONT WHEEL DRIVE VEHICLE
    Publication number: 20120238399
    Abstract: A front wheel drive 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. Each of the clutches and the brakes are located within specific areas defined by the planetary gear sets and the housing walls.
    Type: Application
    Filed: May 24, 2012
    Publication date: September 20, 2012
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Clinton E. Carey, Scott H. Wittkopp, James M. Hart, Andrew W. Phillips
  • CLUTCH AND GEAR ARRANGEMENT FOR A FRONT WHEEL DRIVE VEHICLE
    Publication number: 20120238398
    Abstract: A front wheel drive 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. Each of the clutches and the brakes are located within specific areas defined by the planetary gear sets and the housing walls.
    Type: Application
    Filed: May 24, 2012
    Publication date: September 20, 2012
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Clinton E. Carey, Scott H. Wittkopp, James M. Hart, Andrew W. Phillips
  • Multi-speed transaxle
    Patent number: 8267832
    Abstract: A front wheel drive transmission is provided having a transmission input member, a transmission 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 a brake arranged within a transmission housing.
    Type: Grant
    Filed: December 8, 2008
    Date of Patent: September 18, 2012
    Assignee: GM Global Technology Operations LLC
    Inventors: Clinton E. Carey, Scott H. Wittkopp, James M. Hart, Andrew W. Phillips
  • CLUTCH AND GEAR ARRANGEMENT FOR A FRONT WHEEL DRIVE VEHICLE
    Publication number: 20120231916
    Abstract: A front wheel drive 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. Each of the clutches and the brakes are located within specific areas defined by the planetary gear sets and the housing walls.
    Type: Application
    Filed: May 24, 2012
    Publication date: September 13, 2012
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Clinton E. Carey, Scott H. Wittkopp, James M. Hart, Andrew W. Phillips
  • MULTI-SPEED TRANSMISSION
    Publication number: 20120231917
    Abstract: 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 first, second and third members. The torque transmitting devices include clutches and brakes. The torque transmitting devices are each selectively engageable in combinations of at least three to establish a plurality of forward speed ratios and at least one reverse speed ratio between the input member and the output member.
    Type: Application
    Filed: May 23, 2012
    Publication date: September 13, 2012
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Andrew W. Phillips, Scott H. Wittkopp, James M. Hart, Clinton E. Carey
  • CLUTCH AND GEAR ARRANGEMENT FOR A FRONT WHEEL DRIVE VEHICLE
    Publication number: 20120231918
    Abstract: A front wheel drive 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 a brake arranged within a transmission housing. Each of the clutches and the brake are located within specific areas defined by the planetary gear sets and the housing walls.
    Type: Application
    Filed: May 24, 2012
    Publication date: September 13, 2012
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Clinton E. Carey, Scott H. Wittkopp, James M. Hart, Andrew W. Phillips
  • CLUTCH AND GEAR ARRANGEMENT FOR A FRONT WHEEL DRIVE VEHICLE
    Publication number: 20120231919
    Abstract: A front wheel drive 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. Each of the clutches and the brakes are located within specific areas defined by the planetary gear sets and the housing walls.
    Type: Application
    Filed: May 24, 2012
    Publication date: September 13, 2012
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Clinton E. Carey, Scott H. Wittkopp, James M. Hart, Andrew W. Phillips
  • MULTI-SPEED TRANSMISSION
    Publication number: 20120231920
    Abstract: A transmission includes an input and output member, four planetary gear sets each having first, second and third members, five interconnecting members continuously interconnecting members of the four planetary gear sets and six torque transmitting mechanisms selectively engageable to interconnect one of the first members, second members, and third members with at least one of another of the first members, second members, third members, and a stationary member. The torque transmitting mechanisms are selectively engageable in combinations of at least two to establish at least nine forward speed ratios and at least one reverse speed ratio between the input member and the output member.
    Type: Application
    Filed: March 7, 2011
    Publication date: September 13, 2012
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: SCOTT H. WITTKOPP, ANDREW W. PHILLIPS, JAMES M. HART, EDWARD W. MELLET
  • Automatic transmission gear and clutch arrangement
    Patent number: 8262526
    Abstract: 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: Grant
    Filed: January 30, 2012
    Date of Patent: September 11, 2012
    Assignee: GM Global Technology Operations LLC
    Inventors: 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
  • TRANSMISSION HAVING AT LEAST EIGHT SPEEDS
    Publication number: 20120225747
    Abstract: A transmission of the present invention has 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 first, second and third members. The torque transmitting devices may include clutches and brakes. The torque transmitting devices are selectively engageable in combinations of at least three to establish at least eight forward speed ratios and at least one reverse speed ratio.
    Type: Application
    Filed: May 10, 2012
    Publication date: September 6, 2012
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Clinton E. Carey, James M. Hart, Andrew W. Phillips, Scott H. Wittkopp
  • Eight speed automatic transmission
    Patent number: 8251858
    Abstract: An eight speed automatic transmission is provided having an input member, an output member, four planetary gear sets and five torque transmitting devices. Three of the planetary gear sets are simple and one planetary gear set is compound. Each of the plurality of planetary gear sets has first, second and third members: a sun gear, a ring gear and a planet carrier having a plurality of planet gears rotatably disposed thereon. Three of the torque transmitting devices are clutches and two of the devices are brakes. Eight embodiments of the transmission having different arrangements of the planetary gear sets, clutches and brakes are disclosed.
    Type: Grant
    Filed: June 15, 2011
    Date of Patent: August 28, 2012
    Assignee: GM Global Technology Operations LLC
    Inventors: Clinton E. Carey, James M. Hart, Andrew W. Phillips, Scott H. Wittkopp