Patents Represented by Law Firm Phillips, Moore, Weisenberger, Lempio & Strabala
  • Broad range fluid and mechanical power transmission for vehicles or the like
    Patent number: 4004473
    Abstract: A compact combination of planetary gear sets together with a torque converter and drive conditioning clutches and brakes provides for a broad range of output speeds in either mechanical or converter drive with a nearly constant small step ratio between speeds and with a relatively small variation of transmitted power throughout a very broad range of output speeds.
    Type: Grant
    Filed: November 29, 1973
    Date of Patent: January 25, 1977
    Assignee: Caterpillar Tractor Co.
    Inventors: Shairyl I. Pearce, Gerald B. Ireland, Willis E. Windish