Patents by Inventor Tejinder Singh

Tejinder Singh 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).

  • Publication number: 20080202266
    Abstract: A transmission is provided having a dual clutch, to achieve torque flow through a countershaft gearing arrangement. The countershaft gearing arrangement includes a plurality of co-planar gear sets having gears that are selectively connectable to a plurality of countershafts. At least one transfer gear set transfers torque from the counter shafts to an output shaft. The output shaft is connected to a final drive unit that has a final drive unit output shaft that is transverse to an input member connected at one end to a torque converter and at the other end to the dual clutch.
    Type: Application
    Filed: February 22, 2007
    Publication date: August 28, 2008
    Inventors: James D. Hendrickson, Tejinder Singh, Henryk Sowul
  • Publication number: 20080202267
    Abstract: A transmission is provided having a dual clutch, to achieve torque flow through a countershaft gearing arrangement. The countershaft gearing arrangement includes a plurality of co-planar gear sets having gears that are selectively connectable to a plurality of countershafts. At least one transfer gear set transfers torque from the counter shafts to an output shaft. The output shaft is connected to a final drive unit that has a final drive unit output shaft that is transverse to an input member connected at one end to a torque converter and at the other end to the dual clutch.
    Type: Application
    Filed: February 23, 2007
    Publication date: August 28, 2008
    Inventors: James D. Hendrickson, John A. Diemer, Patrick S. Portell, Henryk Sowul, Ted T. Selever, Tejinder Singh, Craig S. Ross
  • Publication number: 20080196526
    Abstract: A transmission is provided having a dual clutch, to achieve torque flow through a countershaft gearing arrangement. The countershaft gearing arrangement includes a plurality of co-planar gear sets having gears that are selectively connectable to a first and second countershaft. A transfer gear set transfers torque from the countershaft to an output shaft. The output shaft is connected to a final drive unit that has a final drive unit output shaft that is transverse to an input member connected at one end to a torque converter and at the other end to the dual clutch.
    Type: Application
    Filed: February 20, 2007
    Publication date: August 21, 2008
    Inventors: Tejinder Singh, James D. Hendrickson, Henryk Sowul
  • Patent number: 7387586
    Abstract: The electrically variable transmission family of the present invention provides low-content, low-cost electrically variable transmission mechanisms including first, second and third differential gear sets, a battery, two electric machines serving interchangeably as motors or generators and five or six selectable torque-transfer devices. The selectable torque transfer devices are engaged to provide an EVT with a continuously variable range of speeds (including reverse), four or more mechanically fixed forward speed ratios and at least one mechanical reverse speed ratio. The torque transfer devices and the first and second motor/generators are operable to provide six operating modes in the electrically variable transmission, including battery reverse mode, EVT reverse mode, reverse and forward launch modes, continuously variable transmission range mode, fixed forward mode and mechanical reverse mode.
    Type: Grant
    Filed: March 24, 2006
    Date of Patent: June 17, 2008
    Assignee: GM Global Technology Operations, Inc.
    Inventors: Madhusudan Raghavan, Tejinder Singh, John A. Diemer, Joel M. Maguire, James D. Hendrickson, Norman K. Bucknor, Joshua E. Lehrmann, Alan G. Holmes
  • Publication number: 20080070733
    Abstract: The present invention provides an electrically variable transmission for a hybrid vehicle. The electrically variable transmission includes a transmission input shaft defining a first axis of rotation, and a transmission output shaft defining a second axis of rotation. A first motor/generator is operatively connected to the transmission input shaft and is configured to rotate about a third axis of rotation for improved packaging. A second motor/generator is operatively connected to the transmission input shaft and is configured to rotate about the first axis of rotation.
    Type: Application
    Filed: September 15, 2006
    Publication date: March 20, 2008
    Inventors: John A. Diemer, Tejinder Singh, Richard A. Pashnik, Boris I. Burgman
  • Publication number: 20070275814
    Abstract: The electrically variable transmission family of the present invention provides low-content, low-cost electrically variable transmission mechanisms including first and second differential gear sets, a battery, two electric machines serving interchangeably as motors or generators, up to six selectable torque-transfer devices and possibly a dog clutch. The selectable torque transmitting devices are engaged to yield an EVT with a continuously variable range of speeds (including reverse) and at least four mechanically fixed forward speed ratios. The torque transmitting devices and the first and second motor/generators are operable to provide five operating modes in the electrically variable transmission, including battery reverse mode, EVT reverse mode, reverse and forward launch modes, continuously variable transmission range mode, and fixed ratio mode.
    Type: Application
    Filed: May 25, 2006
    Publication date: November 29, 2007
    Inventors: Norman K. Bucknor, Tejinder Singh, John A. Diemer, Alan G. Holmes, James D. Hendrickson, Joshua E. Lehrmann, Madhusudan Raghavan
  • Publication number: 20070225097
    Abstract: The electrically variable transmission family of the present invention provides low-content, low-cost electrically variable transmission mechanisms including first, second and third differential gear sets, a battery, two electric machines serving interchangeably as motors or generators and five or six selectable torque-transfer devices. The selectable torque transfer devices are engaged to provide an EVT with a continuously variable range of speeds (including reverse), four or more mechanically fixed forward speed ratios and at least one mechanical reverse speed ratio. The torque transfer devices and the first and second motor/generators are operable to provide six operating modes in the electrically variable transmission, including battery reverse mode, EVT reverse mode, reverse and forward launch modes, continuously variable transmission range mode, fixed forward mode and mechanical reverse mode.
    Type: Application
    Filed: March 24, 2006
    Publication date: September 27, 2007
    Inventors: Madhusudan Raghavan, Tejinder Singh, John Diemer, Joel Maguire, James Hendrickson, Norman Bucknor, Joshua Lehrmann, Alan Holmes
  • Patent number: 7229377
    Abstract: A differential lubrication system includes structure forming a torque converter feed passage in fluid communication with a fluid source and in which fluid is selectively supplied to a torque converter. Structure forming a branch passage for lubricating a differential mechanism extends from the torque converter feed passage to divert fluid to the differential mechanism prior to the fluid being supplied to the torque converter. Two flow restrictions and a valve mechanism may be employed to control lubrication of the differential mechanism. One of the flow restrictions may form a nozzle so that fluid is sprayed onto the differential mechanism. A method of lubricating the differential mechanism is also provided.
    Type: Grant
    Filed: June 14, 2005
    Date of Patent: June 12, 2007
    Assignee: General Motors Corporation
    Inventors: Tejinder Singh, Kent Johnson
  • Patent number: 7220202
    Abstract: The present invention provides an electrically variable transmission having two motor/generators, two differential gear sets such as planetary gear sets, and five torque transfer devices arranged to provide improved launch, performance and gradeability, and enabling five fixed speed ratios. An input member is continuously connected to one member (preferably a ring gear) of the first planetary gear set, and an output member is continuously connected to one member (preferably a carrier) of the second planetary gear set. One motor/generator is continuously connected to another member (preferably a sun gear) in the first planetary gear set as well as being selectively connected to a member (preferably a ring gear) of the second planetary gear set. The second motor/generator is continuously connected to the remaining member (preferably a sun gear) of the second planetary gear set, and is selectively connected to the remaining member (preferably a carrier) of the first planetary gear set.
    Type: Grant
    Filed: May 18, 2005
    Date of Patent: May 22, 2007
    Assignee: GM Global Technology Operations, Inc.
    Inventors: Tejinder Singh, Henryk Sowul, James D. Hendrickson
  • Patent number: 7172525
    Abstract: An electrically variable transmission having two planetary gear sets, two motor/generators, and six torque transfer devices to provide input split, compound split, output split, neutral, electric reverse and mechanical reverse modes of operation. The electrically variable transmission includes: an input member to receive power from an engine; an output member; first and second motor/generators; and first and second differentially geared planetary gear sets each having first, second and third gear members. The input member is not continuously connected with any member of the planetary gear sets, and the output member is continuously connected to the first member of the second planetary gear set. The first and second motor/generators are each continuously connected to at least one member of the planetary gear sets. The first member of the first planetary gear set is continuously connected with the third member of the second planetary gear set.
    Type: Grant
    Filed: January 21, 2005
    Date of Patent: February 6, 2007
    Assignees: General Motors Corporation, DaimlerChrysler Corporation
    Inventors: Henryk Sowul, James D. Hendrickson, Tejinder Singh
  • Publication number: 20060199175
    Abstract: The present invention discloses a quick, simple, qualitative and semi-quantitative immunologic method and device in a field test kit format for the detection and the stage of infection of certain protozoal, viral, bacterial, or nematodal pathogens in body fluids, using vaccines specific to such pathogens as antigens. The method comprises immobilizing an antigen specific to a selected protozoal, bacterial, viral or nematodal pathogen on a support membrane, obtaining a sample of a body fluid from a human or animal suspected of harboring the pathogen, thus containing antibodies thereto, contacting the antigen with the sample of body fluid and detecting the binding of the antigen with the antibodies by any suitable means. The device comprises a rigid member, an absorbent layer, a foam layer and a support member on which the antigen is immobilized, glued together to form a compact assembly.
    Type: Application
    Filed: March 7, 2005
    Publication date: September 7, 2006
    Inventors: Rama Kristipati, Tejinder Singh, Thelma Dunnebacke, Anthony Caldwell
  • Publication number: 20060089225
    Abstract: A differential lubrication system includes structure forming a torque converter feed passage in fluid communication with a fluid source and in which fluid is selectively supplied to a torque converter. Structure forming a branch passage for lubricating a differential mechanism extends from the torque converter feed passage to divert fluid to the differential mechanism prior to the fluid being supplied to the torque converter. Two flow restrictions and a valve mechanism may be employed to control lubrication of the differential mechanism. One of the flow restrictions may form a nozzle so that fluid is sprayed onto the differential mechanism. A method of lubricating the differential mechanism is also provided.
    Type: Application
    Filed: June 14, 2005
    Publication date: April 27, 2006
    Inventors: Tejinder Singh, Kent Johnson
  • Publication number: 20060060444
    Abstract: A torque-transmitting mechanism includes a spiral spring, an apply piston, and a rotating mechanism. The rotating mechanism is operative to rotate a member relative to the spiral spring to enforce linear movement of the spiral spring which results in linear movement of the apply piston to enforce engagement and disengagement of a torque-transmitting mechanism. The mechanism has two applications—interconnecting two rotating members, or connecting a rotating member to a ground member. The mechanism is employable in two systems. A motor drives the spiral spring with the rotation of the spring causing it to thread between stationary pins to move spring material to one side of the pins. The spiral spring pushes against the clutch plates. The motor drives the housing with pins and the spring is retained from rotating causing the spring to thread through the pins and drive the pins forward or backward. The housing presses against the clutch plates.
    Type: Application
    Filed: September 22, 2004
    Publication date: March 23, 2006
    Inventors: Paul Stevenson, Tejinder Singh, Jeffrey Biallas
  • Publication number: 20060052199
    Abstract: The present invention provides an electrically variable transmission having two motor/generators, two differential gear sets such as planetary gear sets, and five torque transfer devices arranged to provide improved launch, performance and gradeability, and enabling five fixed speed ratios. An input member is continuously connected to one member (preferably a ring gear) of the first planetary gear set, and an output member is continuously connected to one member (preferably a carrier) of the second planetary gear set. One motor/generator is continuously connected to another member (preferably a sun gear) in the first planetary gear set as well as being selectively connected to a member (preferably a ring gear) of the second planetary gear set. The second motor/generator is continuously connected to the remaining member (preferably a sun gear) of the second planetary gear set, and is selectively connected to the remaining member (preferably a carrier) of the first planetary gear set.
    Type: Application
    Filed: May 18, 2005
    Publication date: March 9, 2006
    Inventors: Tejinder Singh, Henryk Sowul, James Hendrickson
  • Publication number: 20060019784
    Abstract: The present invention provides an electrically variable transmission having two planetary gear sets, two motor/generators, and six torque transfer devices to provide input split, compound split, output split, neutral, electric reverse and mechanical reverse modes of operation. The electrically variable transmission includes: an input member to receive power from an engine; an output member; first and second motor/generators; and first and second differentially geared planetary gear sets each having first, second and third gear members. The input member is not continuously connected with any member of the planetary gear sets, and the output member is continuously connected to the first member of the second planetary gear set. The first and second motor/generators are each continuously connected to at least one member of the planetary gear sets. The first member of the first planetary gear set is continuously connected with the third member of the second planetary gear set.
    Type: Application
    Filed: January 21, 2005
    Publication date: January 26, 2006
    Inventors: Henryk Sowul, James Hendrickson, Tejinder Singh
  • Patent number: 6136786
    Abstract: A method of producing analgesia in nociceptive and neuropathic pain is disclosed. The method includes administering to a subject an omega conopeptide which is characterized by its ability to (a) inhibit electrically stimulated contraction of the guinea pig ileum, and (b) bind selectively to omega conopeptide MVIIA binding sites present in neuronal tissue. Also disclosed are novel omega conotoxin peptides effective in producing analgesia.
    Type: Grant
    Filed: September 9, 1999
    Date of Patent: October 24, 2000
    Assignee: Elan Pharmaceuticals, Inc.
    Inventors: Alan Justice, Tejinder Singh, Kishor Chandra Gohil, Karen L. Valentino, George P. Miljanich
  • Patent number: 6087091
    Abstract: A method of producing analgesia in nociceptive and neuropathic pain is disclosed. The method includes administering to a subject an omega conopeptide which is characterized by its ability to (a) inhibit electrically stimulated contraction of the guinea pig ileum, and (b) bind selectively to omega conopeptide MVIIA binding sites present in neuronal tissue. Also disclosed are novel omega conotoxin peptides effective in producing analgesia.
    Type: Grant
    Filed: April 23, 1999
    Date of Patent: July 11, 2000
    Assignee: Elan Pharmaceuticals, Inc.
    Inventors: Alan Justice, Tejinder Singh, Kishor Chandra Gohil, Karen L. Valentino, George P. Miljanich
  • Patent number: 5994305
    Abstract: A method of producing analgesia in nociceptive and neuropathic pain is disclosed. The method includes administering to a subject an omega conopeptide which is characterized by its ability to (a) inhibit electrically stimulated contraction of the guinea pig ileum, and (b) bind selectively to omega conopeptide MVIIA binding sites present in neuronal tissue. Also disclosed are novel omega conotoxin peptides effective in producing analgesia.
    Type: Grant
    Filed: August 21, 1998
    Date of Patent: November 30, 1999
    Assignee: Elan Pharmaceuticals, Inc.
    Inventors: Alan Justice, Tejinder Singh, Kishor Chandra Gohil, Karen L. Valentino, George P. Miljanich
  • Patent number: 5859186
    Abstract: A method of producing analgesia in nociceptive and neuropathic pain is disclosed. The method includes administering to a subject an omega conopeptide which is characterized by its ability to (a) inhibit electrically stimulated contraction of the guinea pig ileum, and (b) bind selectively to omega conopeptide MVIIA binding sites present in neuronal tissue. Also disclosed are novel omega conotoxin peptides effective in producing analgesia.
    Type: Grant
    Filed: July 3, 1996
    Date of Patent: January 12, 1999
    Assignee: Neurex Corporation
    Inventors: Alan Justice, Tejinder Singh, Kishor Chandra Gohil, Karen L. Valentino, George P. Miljanich
  • Patent number: 5824645
    Abstract: A method of producing analgesia in nociceptive and neuropathic pain is disclosed. The method includes administering to a subject an omega conopeptide which is characterized by its ability to (a) inhibit electrically stimulated contraction of the guinea pig ileum, and (b) bind selectively to omega conopeptide MVIIA binding sites present in neuronal tissue. Also disclosed are novel omega conotoxin peptides effective in producing analgesia.
    Type: Grant
    Filed: November 1, 1996
    Date of Patent: October 20, 1998
    Assignee: Neurex Corporation
    Inventors: Alan Justice, Tejinder Singh, Kishor Chandra Gohil, Karen L. Valentino, George P. Miljanich