Patents by Inventor Michael J. E. Richardson

Michael J. E. Richardson 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 planetary transmission
    Patent number: 10260599
    Abstract: A multi-speed transmission including a plurality of planetary gearsets and a plurality of selective couplers to achieve at least nine forward speed ratios is disclosed. The plurality of planetary gearsets may include a first planetary gearset, a second planetary gearset, a third planetary gearset, and a fourth planetary gearset. The plurality of selective couplers may include a number of clutches and a number of brakes. The multi-speed transmission may have four planetary gearsets and six selective couplers. The six selective couplers may include four clutches and two brakes.
    Type: Grant
    Filed: September 28, 2016
    Date of Patent: April 16, 2019
    Assignee: Allison Transmission, Inc.
    Inventors: Michael J. E. Richardson, Jezrah Horen
  • Multi-speed planetary transmission
    Patent number: 10174814
    Abstract: A multi-speed transmission including a plurality of planetary gearsets and a plurality of selective couplers to achieve at least nine forward speed ratios is disclosed. The plurality of planetary gearsets may include a first planetary gearset, a second planetary gearset, a third planetary gearset, and a fourth planetary gearset. The plurality of selective couplers may include a number of clutches and a number of brakes. The multi-speed transmission may have four planetary gearsets and six selective couplers. The six selective couplers may include four clutches and two brakes.
    Type: Grant
    Filed: September 28, 2016
    Date of Patent: January 8, 2019
    Assignee: Allison Transmission, Inc.
    Inventors: Brian Schoolcraft, Michael J. E. Richardson, Eric S. Tryon
  • Multi-speed planetary transmission
    Patent number: 10161486
    Abstract: A multi-speed transmission including a plurality of planetary gearsets and a plurality of selective couplers to achieve at least nine forward speed ratios is disclosed. The plurality of planetary gearsets may include a first planetary gearset, a second planetary gearset, a third planetary gearset, and a fourth planetary gearset. The plurality of selective couplers may include a number of clutches and a number of brakes. The multi-speed transmission may have four planetary gearsets and six selective couplers. The six selective couplers may include three clutches and three brakes.
    Type: Grant
    Filed: April 10, 2017
    Date of Patent: December 25, 2018
    Assignee: Allison Transmission, Inc.
    Inventors: Mitchell Irving, Brian Schoolcraft, Michael J. E. Richardson
  • Multi-speed planetary transmission
    Patent number: 10072736
    Abstract: A multi-speed transmission including a plurality of planetary gearsets and a plurality of selective couplers to achieve at least nine forward speed ratios is disclosed. The plurality of planetary gearsets may include a first planetary gearset, a second planetary gearset, a third planetary gearset, and a fourth planetary gearset. The plurality of selective couplers may include a number of clutches and a number of brakes. The multi-speed transmission may have four planetary gearsets and six selective couplers. The six selective couplers may include three clutches and three brakes.
    Type: Grant
    Filed: September 28, 2016
    Date of Patent: September 11, 2018
    Assignee: Allison Transmission, Inc.
    Inventors: Douglas S. Burchett, Brian Schoolcraft, Michael J. E. Richardson
  • MULTI-SPEED PLANETARY TRANSMISSION
    Publication number: 20180087606
    Abstract: A multi-speed transmission including a plurality of planetary gearsets and a plurality of selective couplers to achieve at least nine forward speed ratios is disclosed. The plurality of planetary gearsets may include a first planetary gearset, a second planetary gearset, a third planetary gearset, and a fourth planetary gearset. The plurality of selective couplers may include a number of clutches and a number of brakes. The multi-speed transmission may have four planetary gearsets and six selective couplers. The six selective couplers may include four clutches and two brakes.
    Type: Application
    Filed: September 28, 2016
    Publication date: March 29, 2018
    Inventors: Michael J. E. Richardson, Jezrah Horen
  • Multi-speed planetary transmission
    Patent number: 9869377
    Abstract: A multi-speed transmission including a plurality of planetary gearsets and a plurality of selective couplers to achieve at least nine forward speed ratios is disclosed. The plurality of planetary gearsets may include a first planetary gearset, a second planetary gearset, a third planetary gearset, and a fourth planetary gearset. The plurality of selective couplers may include a number of clutches and a number of brakes. The multi-speed transmission may have four planetary gearsets and six selective couplers. The six selective couplers may include three clutches and three brakes.
    Type: Grant
    Filed: April 10, 2017
    Date of Patent: January 16, 2018
    Assignee: Allison Transmission, Inc.
    Inventors: Douglas S. Burchett, Michael J. E. Richardson