Patents by Inventor Daniel D. Morrow

Daniel D. Morrow 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).

  • Three point coupling arrangement for a tractor
    Patent number: 4892158
    Abstract: A three point implement hitch arrangement for a tractor including a frame assembly, a pair of draft arms pivotally supported on the frame assembly intermediate their ends and lift cylinders having a cylinder portion pivotally supported on the frame assembly above the draft arms and having a rod portion pivotally connected to the draft arms, forwardly of the draft arm pivotal connections. The lift cylinders are connected in series, wherein the area of the rod end of one cylinder is equal to the area of the head end of the second cylinder, whereby the cylinders may be operated independently to tilt the implement or operated in unison to lift the implement, eliminating the requirement for a complex structural support and control.
    Type: Grant
    Filed: February 18, 1987
    Date of Patent: January 9, 1990
    Assignee: J. I. Case Company
    Inventors: Thomas R. Brown, Daniel D. Morrow