Patents by Inventor John C. Roderick

John C. Roderick 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).

  • Patent number: 4813494
    Abstract: A stake driver having a first rod that has at least one solid end for driving a stake. The other end may be pointed. A second larger diameter rod is slidably insertable over the first rod. One of the open ends of the second rod is located over a stake. Then the first rod is moved upward to allow the stake to be encircled by the open end of the second rod. The end of the second rod may be slotted to accomodate a rectangular stake or marker fastened to the top of the stake. With one hand grasping the second rod, the other hand lifts the first rod and then releases it so that the first rod can free fall and drive the stake into the soil. If additional force is required to drive the pointed end of the first rod into the soil, a third rod is slid onto the second rod and screwably connected to it.
    Type: Grant
    Filed: February 26, 1987
    Date of Patent: March 21, 1989
    Inventors: Larry D. Beard, Larry L. Brigman, John C. Roderick