Patents by Inventor Forrest Foster

Forrest Foster 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).

  • Rotary gearbox
    Patent number: 10851832
    Abstract: A rotary gear box for a rotary drill rig having a rotary joint that includes a first conduit having a first end portion defining an exit, a second conduit having a second end portion defining an inlet, and a sealing arrangement positioned radially between the first end portion of the first conduit and the second portion of the second conduit. The second conduit is rotatable relative to the first conduit and is arranged coaxial with the first conduit. The first end of the first conduit is received within the second end of the second conduit such that the exit of the first conduit is downstream from the sealing arrangement.
    Type: Grant
    Filed: April 30, 2019
    Date of Patent: December 1, 2020
    Assignee: Caterpillar Inc.
    Inventors: Adam J. Johnson, Forrest Foster
  • ROTARY GEARBOX
    Publication number: 20200347879
    Abstract: A rotary gear box for a rotary drill rig having a rotary joint that includes a first conduit having a first end portion defining an exit, a second conduit having a second end portion defining an inlet, and a sealing arrangement positioned radially between the first end portion of the first conduit and the second portion of the second conduit. The second conduit is rotatable relative to the first conduit and is arranged coaxial with the first conduit. The first end of the first conduit is received within the second end of the second conduit such that the exit of the first conduit is downstream from the sealing arrangement.
    Type: Application
    Filed: April 30, 2019
    Publication date: November 5, 2020
    Applicant: Caterpillar Inc.
    Inventors: Adam J. Johnson, Forrest Foster