Patents by Inventor Patrick Benedict Usoro

Patrick Benedict Usoro 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: 6736750
    Abstract: A family of power transmissions having first, second, and third planetary gearsets and six torque-transmitting mechanisms. The first planetary gearset is continuously interconnected with a member of the second planetary gearset and a member of the third planetary gearset. The second planetary gearset is continuously interconnected with a member of the third planetary gearset. The six torque-transmitting mechanisms are selectively engaged in combinations of two to establish at least seven forward speed ratios and one reverse speed ratio within the planetary gearsets.
    Type: Grant
    Filed: October 30, 2002
    Date of Patent: May 18, 2004
    Assignee: General Motors Corporation
    Inventors: Chunhao J. Lee, Norman Kenneth Bucknor, Madhusudan Raghavan, Patrick Benedict Usoro
  • Patent number: 6736749
    Abstract: The family of transmissions has a plurality of members that can be utilized in powertrains to provide at least seven forward speed ratios and one reverse speed ratio. The transmission family members include three planetary gear sets and six torque transmitting mechanisms. The powertrain includes an engine and torque converter that is continuously connected to at least one member of the planetary gear arrangement and an output member that is continuously connected with another of the planetary gear members. The six torque transmitting mechanisms provide interconnections between various gear members and with the transmission housing, the input or output shaft, in some instances, and are operated in combinations of two to establish at least seven forward speed ratios.
    Type: Grant
    Filed: February 25, 2002
    Date of Patent: May 18, 2004
    Assignee: General Motors Corporation
    Inventors: Norman Kenneth Bucknor, Madhusudan Raghavan, Patrick Benedict Usoro
  • Patent number: 6736752
    Abstract: A family of transmissions is incorporated into powertrains to provide six forward speed ratios and one reverse speed ratio between an engine and a final drive mechanism. Each of the family members includes three planetary gearsets, one of which is an input planetary gearset and the other two are interconnected ratio planetary gearsets. Each transmission family member employs three rotating type torque-transmitting mechanisms (clutches) and two stationary type torque-transmitting mechanisms (brakes) to provide the six forward speed ratios and one reverse speed ratio. These torque-transmitting mechanisms are selectively engaged in combinations of two during the establishment of the speed ratios within the family member.
    Type: Grant
    Filed: September 12, 2002
    Date of Patent: May 18, 2004
    Assignee: General Motors Corporation
    Inventors: Patrick Benedict Usoro, Chi-Kuan Kao, Madhusudan Raghavan
  • Patent number: 6736751
    Abstract: The family of transmissions has a plurality of members that can be utilized in powertrains to provide at least six forward speed ratios and one reverse speed ratio. The transmission family members include four planetary gear sets, two input clutches, eight torque transmitting mechanisms, and two fixed interconnections. The invention provides a low content multi-speed dual clutch transmission mechanism wherein the two input clutches alternately connect the engine to realize odd and even number speed ratio ranges. The eight torque transmitting mechanisms provide connections between various gear members, the fixed interconnections, the input clutches, the output shaft, and the transmission housing, and are operated in combinations of three to establish at least six forward speed ratios and at least one reverse speed ratio. One of the torque transmitting mechanisms may be eliminated to provide at least five forward speed ratios and at least one reverse speed ratio.
    Type: Grant
    Filed: December 6, 2002
    Date of Patent: May 18, 2004
    Assignee: General Motors Corporation
    Inventors: Patrick Benedict Usoro, Chunhao J. Lee
  • Publication number: 20040087410
    Abstract: A family of transmissions having a plurality of family members each having three planetary gearsets and six torque-transmitting mechanisms. The planetary gearsets and the torque-transmitting mechanisms are interconnected such that at least seven forward speed ratios and one reverse speed ratio can be established within the three planetary gearsets and transmitted between an input shaft and an output shaft, by selectively engaging the torque transmitting mechanisms in combinations of four.
    Type: Application
    Filed: October 30, 2002
    Publication date: May 6, 2004
    Inventors: Patrick Benedict Usoro, Chunhao J. Lee, Norman Kenneth Bucknor, Chi-Kuan Kao, Madhusudan Raghavan
  • Publication number: 20040087409
    Abstract: A family of power transmissions having first, second, and third planetary gearsets and six torque-transmitting mechanisms. The first planetary gearset is continuously interconnected with a member of the second planetary gearset and a member of the third planetary gearset. The second planetary gearset is continuously interconnected with a member of the third planetary gearset. The six torque-transmitting mechanisms are selectively engaged in combinations of two to establish at least seven forward speed ratios and one reverse speed ratio within the planetary gearsets.
    Type: Application
    Filed: October 30, 2002
    Publication date: May 6, 2004
    Inventors: Chunhao J. Lee, Norman Kenneth Bucknor, Madhusudan Raghavan, Patrick Benedict Usoro
  • Patent number: 6729994
    Abstract: A family of power transmissions wherein each family member includes first, second, and third planetary gearsets, six torque-transmitting mechanisms, and one continuous interconnecting member. The interconnecting member interconnects a member of the first planetary gearset, a member of the second planetary gearset, and a member of the third planetary gearset. The torque-transmitting mechanisms being selectively engageable in combinations of four to establish at least seven forward speed ratios and one reverse speed ratio within the planetary gearset.
    Type: Grant
    Filed: October 29, 2002
    Date of Patent: May 4, 2004
    Assignee: General Motors Corporation
    Inventors: Madhusudan Raghavan, Patrick Benedict Usoro, Norman Kenneth Bucknor, Chunhao J. Lee
  • Patent number: 6729993
    Abstract: The family of transmissions has a plurality of members that can be utilized in powertrains to provide at least seven forward speed ratios and one reverse speed ratio. The transmission family members include three planetary gear sets having six torque-transmitting mechanisms and three fixed interconnections. The powertrain includes an engine and torque converter that is not continuously connected to one of the planetary gears members and an output member that is continuously connected with at one of the planetary gear members. The six torque-transmitting mechanisms provide interconnections between various gear members, the input shaft, the output shaft, and with the transmission housing, and are operated in combinations of three to establish at least seven forward speed ratios and one reverse speed ratio.
    Type: Grant
    Filed: September 12, 2002
    Date of Patent: May 4, 2004
    Assignee: General Motors Corporation
    Inventors: Norman Kenneth Bucknor, Patrick Benedict Usoro, Madhusudan Raghavan
  • Publication number: 20040082430
    Abstract: A family of power transmissions wherein each family member includes three planetary gearsets each having three members and six selectively engageable torque-transmitting mechanisms. The planetary gearsets have members that are continuously interconnected by at least three interconnecting members. The torque-transmitting mechanisms are selectively engaged in combinations of two to establish at least seven forward speed ratios and one reverse speed ratio in the three planetary gearsets.
    Type: Application
    Filed: October 29, 2002
    Publication date: April 29, 2004
    Inventors: Chunhao J. Lee, Chi-Kuan Kao, Madhusudan Raghavan, Patrick Benedict Usoro
  • Publication number: 20040082429
    Abstract: A family of power transmissions wherein each family member includes first, second, and third planetary gearsets, six torque-transmitting mechanisms, and one continuous interconnecting member. The interconnecting member interconnects a member of the first planetary gearset, a member of the second planetary gearset, and a member of the third planetary gearset. The torque-transmitting mechanisms being selectively engageable in combinations of four to establish at least seven forward speed ratios and one reverse speed ratio within the planetary gearset.
    Type: Application
    Filed: October 29, 2002
    Publication date: April 29, 2004
    Inventors: Madhusudan Raghavan, Patrick Benedict Usoro, Norman Kenneth Bucknor, Chunhao J. Lee
  • Publication number: 20040082422
    Abstract: The family of transmissions has a plurality of members that can be utilized in powertrains to provide at least seven forward speed ratios and one reverse speed ratio. The transmission family members include three planetary gear sets having six torque-transmitting mechanisms and three fixed interconnections. The powertrain includes an engine and torque converter that is not continuously connected to any of the planetary gear members. In some family members, the output shaft is continuously connected with at least one member of the first or second planetary gear set or continuously connected with a member of the third planetary gear set and selectively connectable with at least one member of the first, second or third planetary gear set.
    Type: Application
    Filed: October 23, 2002
    Publication date: April 29, 2004
    Inventors: Madhusudan Raghavan, Norman Kenneth Bucknor, Patrick Benedict Usoro
  • Publication number: 20040082424
    Abstract: A family of power transmissions has a plurality of family members each of which have three planetary gearsets, each having three members, and six torque transmitting mechanisms. An output shaft is continuously interconnected with at least one planetary member. An input shaft is selectively interconnected with respective planetary members through at least two of the torque transmitting mechanisms. One member of the second planetary gearset and one member of the third planetary gearset are continuously interconnected, and another member of the third planetary gearset is continuously interconnected with a transmission housing. The remaining torque transmitting mechanisms provide selective interconnections between two planetary members or between a planetary member and the housing, the input shaft, and the output shaft. The torque transmitting mechanisms are selectively engaged in combinations of four to establish at least seven forward speeds and one reverse speed.
    Type: Application
    Filed: October 29, 2002
    Publication date: April 29, 2004
    Inventors: Madhusudan Raghavan, Patrick Benedict Usoro, Chunhao J. Lee, Norman Kenneth Bucknor, Chi-Kuan Kao
  • Publication number: 20040082427
    Abstract: The family of transmissions has a plurality of members that can be utilized in powertrains to provide at least seven forward speed ratios and one reverse speed ratio. The transmission family members include three planetary gear sets having six torque-transmitting mechanisms and two fixed interconnections. The powertrain includes an engine and torque converter that is continuously connected to at least one of the planetary gear members and an output member that is continuously connected with another one of the planetary gear members. The six torque-transmitting mechanisms provide interconnections between various gear members, the fixed interconnections, the input shaft, the output shaft, and the transmission housing, and are operated in combinations of three to establish at least seven forward speed ratios and at least one reverse speed ratio.
    Type: Application
    Filed: October 23, 2002
    Publication date: April 29, 2004
    Inventors: Norman Kenneth Bucknor, Patrick Benedict Usoro, Madhusudan Raghavan
  • Publication number: 20040082425
    Abstract: The family of transmissions has a plurality of members that can be utilized in powertrains to provide at least seven forward speed ratios and one reverse speed ratio. The transmission family members include three planetary gear sets having six torque-transmitting mechanisms and two fixed interconnections. Also, one planetary gear member is continuously connected with the transmission housing. The powertrain includes an engine and torque converter that is not continuously connected to one of the planetary gear members and an output member that is continuously connected with at least one of the planetary gear members. The six torque-transmitting mechanisms provide interconnections between various gear members, the fixed interconnections, the input shaft, the output shaft, and the transmission housing, and are operated in combinations of three to establish at least seven forward speed ratios and at least one reverse speed ratio.
    Type: Application
    Filed: October 23, 2002
    Publication date: April 29, 2004
    Inventors: Chunhao J. Lee, Norman Kenneth Bucknor, Patrick Benedict Usoro, Madhusudan Raghavan
  • Publication number: 20040082428
    Abstract: The family of transmissions has a plurality of members that can be utilized in powertrains to provide at least six forward speed ratios and one reverse speed ratio. The transmission family members include four planetary gear sets having two input clutches, eight torque transmitting mechanisms, two fixed interconnections, and one grounded planetary gear member. The invention provides a low content multi-speed dual clutch transmission mechanism wherein the two input clutches alternately connect the engine to realize odd and even speed ratio ranges. The eight torque transmitting mechanisms provide connections between various gear members, the fixed interconnections, the input clutches, the output shaft, and the transmission housing, and are operated along with the input clutches in combinations of three to establish at least six forward speed ratios and at least one reverse speed ratio.
    Type: Application
    Filed: October 23, 2002
    Publication date: April 29, 2004
    Inventors: Patrick Benedict Usoro, Chunhao J. Lee
  • Publication number: 20040082426
    Abstract: The family of six-speed planetary transmissions incorporates three planetary gearsets and five torque-transmitting mechanisms, which are engaged in combinations of two to establish at least six forward speeds and one reverse speed within the planetary transmission. The five torque-transmitting mechanisms are comprised of three rotating type torque-transmitting mechanisms (clutches) and two stationary type torque-transmitting mechanisms (brakes). Each of the three planetary gearsets has three members with a first member of the first planetary gearset being continuously interconnected with a first member of the second planetary gearset. A second member of the first planetary gearset is continuously interconnected with a first member of the third planetary gearset. A second member of the second planetary gearset is continuously interconnected with a second member of the third planetary gearset. The input shaft and output shafts are continuously connected with selected members of the planetary gearsets.
    Type: Application
    Filed: October 23, 2002
    Publication date: April 29, 2004
    Inventors: Madhusudan Raghavan, Patrick Benedict Usoro, Chi-Kuan Kao
  • Publication number: 20040082423
    Abstract: A family of power transmissions includes three planetary gearsets, which each have a member interconnected with one of the other planetary gearsets, and two of the planetary gearsets have a second member continuously interconnected. Each family member includes six torque-transmitting mechanisms which are engaged in combinations of two to establish at least seven forward speed ratios and one reverse speed ratio within the planetary gear arrangement between the transmission input shaft and the transmission output shaft.
    Type: Application
    Filed: October 29, 2002
    Publication date: April 29, 2004
    Inventors: Madhusudan Raghavan, Patrick Benedict Usoro, Norman Kenneth Bucknor, Chunhao J. Lee
  • Publication number: 20040077454
    Abstract: The family of transmissions has a plurality of members that can be utilized in powertrains to provide at least seven forward speed ratios and one reverse speed ratio. The transmission family members include three planetary gear sets having six torque-transmitting mechanisms and three fixed interconnections. The powertrain includes an engine and torque converter that is not continuously connected to any of the planetary gear members. An output shaft is continuously connected with a member of the first or second planetary gear set or continuously connected with a member of the third planetary gear set and selectively connectable with at least one member of the first or second planetary gear set. The six torque-transmitting mechanisms provide interconnections between various gear members, the fixed interconnections, the input shaft, the output shaft, and the transmission housing, and are operated in combinations of three to establish at least seven forward speed ratios and at least one reverse speed ratio.
    Type: Application
    Filed: October 19, 2002
    Publication date: April 22, 2004
    Inventors: Norman Kenneth Bucknor, Patrick Benedict Usoro, Madhusudan Raghavan
  • Publication number: 20040077453
    Abstract: The family of transmissions has a plurality of members that can be utilized in powertrains to provide at least seven forward speed ratios and one reverse speed ratio. The transmission family members include three planetary gear sets having six torque-transmitting mechanisms. First and second interconnections continuously connect members of the first, second and third planetary gear sets. The powertrain includes an engine and torque converter that is not continuously connected to any of the planetary gear members and an output member that is continuously connected with one of the planetary gear members. The six torque-transmitting mechanisms provide interconnections between various gear members, the fixed interconnections, the input shaft, and with the transmission housing, and are operated in combinations of three to establish at least seven forward speed ratios and one reverse speed ratio.
    Type: Application
    Filed: October 19, 2002
    Publication date: April 22, 2004
    Inventors: Norman Kenneth Bucknor, Madhusudan Raghavan, Patrick Benedict Usoro, Chi-Kuan Kao
  • Patent number: 6723019
    Abstract: The family of transmissions has a plurality of members that can be utilized in powertrains to provide at least seven forward speed ratios and one reverse speed ratio. The transmission family members include three planetary gear sets having six torque-transmitting mechanisms and two fixed interconnections. The powertrain includes an engine and torque converter that is continuously connected to at least one of the planetary gear members and an output member that is continuously connected with another one of the planetary gear members. The six torque-transmitting mechanisms provide interconnections between various gear members, the fixed interconnections, the input shaft, the output shaft, and the transmission housing, and are operated in combinations of two to establish at least seven forward speed ratios and at least one reverse speed ratio.
    Type: Grant
    Filed: September 13, 2002
    Date of Patent: April 20, 2004
    Assignee: General Motors Corporation
    Inventors: Chunhao J. Lee, Madhusudan Raghavan, Patrick Benedict Usoro