Patents by Inventor Barney D. Darby, Jr.

Barney D. Darby, Jr. 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).

  • Compactor for automotive oil filter with support frame
    Patent number: 5136934
    Abstract: A compactor for automotive oil filters is illustrated wherein an upright hydraulic cylinder D is its lower end upon a vertical housing A open on one side for reception of an oil filter and for removal thereof after compaction with a central passageway F in a lower support C for relieving air pressure generated during compression and compaction.
    Type: Grant
    Filed: April 1, 1991
    Date of Patent: August 11, 1992
    Inventor: Barney D. Darby, Jr.