Patents by Inventor Stewart P. Maxwell

Stewart P. Maxwell 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: 4592250
    Abstract: A multiple speed ratio hydrokinetic transmission for a wheeled vehicle comprising a planetary gear set having two input torque flow paths and a hydrokinetic torque converter having an impeller element connected to one flow path and a turbine element connected to the other flow path; a friction lockup clutch which, under relatively high peed driving conditions, establishes a mechanical torque bypass path for engine torque in parallel with a torque flow path established by the hydrokinetic unit; and an overrunning coupling located between the friction clutch and the turbine element to adapt the transmission for a direct mechanical torque transfer from the vehicle engine to a driven member or a split torque path that is partly mechanical and partly hydrokinetic; provision being made during high speed ratio operation for a regenerative torque distribution between the input elements through the friction clutch and the overrunning coupling thereby providing improved driveline efficiency and improved driveability fo
    Type: Grant
    Filed: October 11, 1983
    Date of Patent: June 3, 1986
    Assignee: Ford Motor Company
    Inventors: David B. Plasencia, Stewart P. Maxwell