Patents by Inventor Donald C. Day

Donald C. Day 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).

  • Locating pin
    Patent number: 4498798
    Abstract: A locating pin having a generally cylindrical, threaded lower portion and an axially aligned, nonthreaded upper portion is provided. The threaded lower portion has at least one vertical slot in which is located a locking bar. The locking bar has a flat lower portion that permits the pin to be threaded into a receiving opening. The locking bar has a wedge shaped upper portion that is driven down into the opening to retain the pin therein. The upper portion of the pin extends from the opening to provide a locating pin.
    Type: Grant
    Filed: September 26, 1983
    Date of Patent: February 12, 1985
    Assignee: AMSTED Industries Incorporated
    Inventor: Donald C. Day