Patents by Inventor James M. Hart

James M. Hart 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).

  • MULTI-SPEED TRANSMISSION
    Publication number: 20140128201
    Abstract: A transmission is provided having an input member, an output member, at least 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 actuatable in combinations of three to establish a plurality of forward gear ratios and at least one reverse gear ratio.
    Type: Application
    Filed: October 30, 2013
    Publication date: May 8, 2014
    Applicant: GM Global Technology Operations LLC
    Inventors: Edward W. Mellet, James M. Hart, Andrew W. Phillips
  • MULTI-SPEED TRANSMISSION
    Publication number: 20140128200
    Abstract: A transmission has an input member, an output member, at least 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 actuatable in combinations of three to establish a plurality of forward gear ratios and one reverse gear ratio.
    Type: Application
    Filed: November 7, 2012
    Publication date: May 8, 2014
    Applicant: GM Global Technology Operations LLC
    Inventors: Edward W. Mellet, James M. Hart, Andrew W. Phillips
  • Multi-speed transmission having a stacked planetary gear set
    Patent number: 8715131
    Abstract: A transmission of the present invention has an input member, an output member, two planetary gear sets, a planetary gear set assembly, 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 planetary gear set assembly is a stacked planetary gear set that includes a first, second, third and fourth member. The torque transmitting devices may include clutches and brakes. The torque transmitting devices are each selectively engageable in combinations of at least three to establish at least eleven forward speed ratios and at least one reverse speed ratio.
    Type: Grant
    Filed: November 30, 2011
    Date of Patent: May 6, 2014
    Assignee: GM Global Technology Operations
    Inventors: Edward W. Mellet, James B. Borgerson, James M. Hart
  • Multi-speed transmission
    Patent number: 8715130
    Abstract: A transmission has an input member, an output member, four planetary gear sets, a plurality of coupling members and a plurality of torque transmitting devices. Two of the four planetary gear sets are stacked. Two of the planetary gear sets include first, second and third members. The two planetary gear sets that are stacked form a planetary gear set assembly that includes a first, second, third and fourth member. The torque transmitting devices include clutches and brakes.
    Type: Grant
    Filed: May 14, 2013
    Date of Patent: May 6, 2014
    Assignee: GM Global Technology Operations
    Inventors: Edward W. Mellet, James M. Hart, Andrew W. Phillips
  • Multi-speed transmission having three planetary gear sets
    Patent number: 8708860
    Abstract: A transmission includes 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: February 18, 2013
    Date of Patent: April 29, 2014
    Assignee: GM Global Technology Operations LLC
    Inventors: James M. Hart, James B. Borgerson
  • Multi-speed transmission having three planetary gear sets
    Patent number: 8708859
    Abstract: A transmission 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: January 31, 2013
    Date of Patent: April 29, 2014
    Assignee: GM Global Technology Operations LLC
    Inventors: Andrew W. Phillips, Scott H. Wittkopp, James M. Hart, Clinton E. Carey
  • Multi-speed transmission with a selectable one-way clutch
    Patent number: 8702555
    Abstract: A transmission is provided having an input member, an output member, a plurality of planetary gear sets, a plurality of coupling members and a plurality of torque transmitting devices. One of the plurality of torque transmitting devices is an integrated friction launch clutch. A one-way clutch is in series relationship with the launch clutch and is configured to disconnect the launch clutch from at least one of the plurality of planetary gear sets. The torque transmitting devices include clutches and brakes actuatable in combinations of two to establish at least ten forward gear ratios and one reverse gear ratio.
    Type: Grant
    Filed: March 1, 2013
    Date of Patent: April 22, 2014
    Assignee: GM Global Technology Operations LLC
    Inventors: James M. Hart, Daryl A. Wilton, James B. Borgerson
  • TEN-SPEED TRANSMISSION
    Publication number: 20140106923
    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.
    Type: Application
    Filed: October 1, 2013
    Publication date: April 17, 2014
    Applicant: GM Global Technology Operations LLC
    Inventors: James B. Borgerson, James M. Hart, Edward W. Mellet
  • MULTI-SPEED TRANSMISSION
    Publication number: 20140106925
    Abstract: A transmission is provided having an input member, an output member, at least 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 actuatable in different combinations to establish a plurality of forward gear ratios and at least one reverse gear ratio.
    Type: Application
    Filed: October 1, 2013
    Publication date: April 17, 2014
    Applicant: GM Global Technology Operations LLC
    Inventors: Edward W. Mellet, Andrew W. Phillips, James M. Hart
  • Multi-speed transmission
    Patent number: 8690722
    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: Grant
    Filed: May 23, 2012
    Date of Patent: April 8, 2014
    Assignee: GM Global Technology Operations LLC
    Inventors: Andrew W. Phillips, Scott H. Wittkopp, James M. Hart, Clinton E. Carey
  • Multi-speed transmission
    Patent number: 8678972
    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 each selectively engageable in combinations of at least three to establish at least nine forward speed ratios and at least one reverse speed ratio.
    Type: Grant
    Filed: October 3, 2011
    Date of Patent: March 25, 2014
    Assignee: GM Global Technology Operations LLC
    Inventors: Scott H. Wittkopp, James M. Hart
  • Multi-speed transmission having three planetary gear sets
    Patent number: 8663054
    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: March 24, 2011
    Date of Patent: March 4, 2014
    Assignee: GM Global Technology Operations LLC
    Inventors: Andrew W. Phillips, Scott H. Wittkopp, James M. Hart, Clinton E. Carey
  • MULTI-SPEED TRANSMISSION
    Publication number: 20140057753
    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 include clutches and brakes. The torque transmitting devices are each selectively engageable in combinations of at least three to establish a plurality forward speed ratios and at least one reverse speed ratio.
    Type: Application
    Filed: August 22, 2012
    Publication date: February 27, 2014
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: James M. Hart, Andrew W. Phillips, Scott H. Wittkopp
  • MULTI-SPEED TRANSMISSION
    Publication number: 20140057751
    Abstract: A transmission is provided having an input member, an output member, at least 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 actuatable in combinations of three to establish a plurality of forward gear ratios and at least one reverse gear ratio.
    Type: Application
    Filed: August 15, 2013
    Publication date: February 27, 2014
    Inventors: Edward W. Mellet, James M. Hart, Andrew W. Phillips
  • Multi-speed transmission
    Patent number: 8651996
    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 four clutches and three brakes actuatable in combinations of two to establish a plurality of forward gear ratios and one reverse gear ratio.
    Type: Grant
    Filed: January 9, 2013
    Date of Patent: February 18, 2014
    Assignee: GM Global Technology Operations LLC
    Inventors: Edward W. Mellet, James M. Hart
  • Clutch and gear arrangement for a front wheel drive vehicle
    Patent number: 8636618
    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 brakes are located within specific areas defined by the planetary gear sets and the housing walls.
    Type: Grant
    Filed: January 27, 2012
    Date of Patent: January 28, 2014
    Assignee: GM Global Technology Operations LLC
    Inventors: James M. Hart, Scott H. Wittkopp
  • System and method for attaching a dual clutch to a flywheel
    Patent number: 8631920
    Abstract: An apparatus for transferring torque from a crankshaft to a dual input transmission includes: a flywheel connected at one end to the crankshaft and at the opposite end to a torque transmitting device or dual clutch. The flywheel has a first coupling member that is configured to engage a second coupling member attached to a center plate of the dual clutch. The first coupling member is fixedly secured to the second coupling member by a fastening means. A dual clutch actuation device generates the axial compression force required to compress a first and second set of frictional elements of a dual clutch.
    Type: Grant
    Filed: September 17, 2010
    Date of Patent: January 21, 2014
    Assignee: GM Global Technology Operations LLC
    Inventors: Clinton E. Carey, Daryl A. Wilton, James M. Hart
  • FLUID SUPPLY FOR ROTATING PISTON
    Publication number: 20140018204
    Abstract: A transmission is provided having an input member, an output member, at least four planetary gear sets, coupling members, and torque transmitting devices. Each of the planetary gear sets includes first, second and third members. The torque transmitting devices include clutches and brakes actuatable in combinations of two to establish at least eleven forward gear ratios and one reverse gear ratio. A clutch assembly for use in an automatic transmission is provided that includes an apply piston and a stationary fluid supply member. The apply piston is configured to rotate during at least one gear speed of the automatic transmission. The stationary fluid supply member has portions forming a channel in the stationary fluid supply member and defining an outlet end of the channel. The stationary fluid supply member is configured to supply fluid to the apply piston through the outlet end of the channel.
    Type: Application
    Filed: July 11, 2012
    Publication date: January 16, 2014
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Edward W. Mellet, Daryl A. Wilton, James M. Hart
  • Automatic transmission gear and clutch arrangement
    Patent number: 8628442
    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: August 28, 2012
    Date of Patent: January 14, 2014
    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
  • MULTI-SPEED TRANSMISSION
    Publication number: 20130345014
    Abstract: A transmission is provided having an input member, an output member, at least 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 actuatable in combinations of three to establish a plurality of forward gear ratios and at least one reverse gear ratio.
    Type: Application
    Filed: June 14, 2013
    Publication date: December 26, 2013
    Inventors: Edward W. Mellet, James M. Hart