Patents by Inventor Jonathan David Oates

Jonathan David Oates 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).

  • Steering axle for vehicular hydraustatic drive system
    Patent number: 6302233
    Abstract: A novel arrangement of a steering axle for a land vehicle having a hydrostatic drive system, wherein a hydraulic motor assembly is directly mounted on a steerable wheel of the axle and adapted to be movable with the wheel, is disclosed. The steering axle comprises a pair of kingpin assemblies pivotally mounting steering knuckles to axle yokes. An upper kingpin assembly pivotally attaches the steering knuckle to the axle yoke, and, at the same time, provides a hydraulic swivel coupling between the wheel mounted hydraulic motor and the rest of the hydrostatic drive system of mounted on the vehicle, that prevents the bending of the hydraulic hoses conveying hydraulic fluid, by steering movements of the front steerable wheels.
    Type: Grant
    Filed: June 6, 2000
    Date of Patent: October 16, 2001
    Assignee: Spicer Technologies, Inc.
    Inventors: Kenneth James Okamuro, Donald W. Fitch, Jonathan David Oates