Patents by Inventor John E. Ledford

John E. Ledford 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).

  • Lock ring for shackle pins and the like
    Patent number: 3986428
    Abstract: A releasable locking ring has a full circular portion defined by a split, coiled ring having a free, tapered overlapping end and an opposite end bent into a generally semi-circular bail portion curving substantially in a plane normal, or slightly less than normal, to that of the ring; and the bail terminates in a curved return at its free extremity adjacent to the ring.
    Type: Grant
    Filed: May 29, 1975
    Date of Patent: October 19, 1976
    Assignee: John E. Ledford
    Inventors: John E. Ledford, Leonard L. Hierath