Patents by Inventor William B. Norick

William B. Norick 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).

  • Combined hydrostatic transmission implement system
    Patent number: 4067193
    Abstract: A hydraulic system is disclosed which combines hydrostatic and implement motors and includes a plurality of hydraulic motors with a variable displacement pump supplying fluid for the motors and a plurality of directional control valves for selectively directing fluid from the pump to the respective motors and includes pressure varying means connected to each of the directional control valves for varying a pilot pressure communicated to vary the displacement of the variable displacement pump in direct relationship to the shifting of the directional control valves.
    Type: Grant
    Filed: November 22, 1976
    Date of Patent: January 10, 1978
    Assignee: Caterpillar Tractor Co.
    Inventor: William B. Norick