Patents by Inventor Harvey S. Dulin

Harvey S. Dulin 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: 5294001
    Abstract: Apparatus and method for cleaning the oil off of oil covered parts by the employment of oil absorbing particulate such as ground corncob. The oil covered parts and oil absorbing particulate are mixed together in a tumbler for a period sufficient to bring each of the parts into contact with the oil absorbing particulate. Much of the particulate adheres to the oil covered parts. Thus, following mixing, the particulate adhered parts are subjected to a series of vibrating, impinging, tumbling, and air blowing actions which remove the adhering particulate from the parts and direct the oil absorbed particulate and cleaned parts into two separate, respective vessels.
    Type: Grant
    Filed: October 28, 1991
    Date of Patent: March 15, 1994
    Assignee: Dulin Metals Co.
    Inventor: Harvey S. Dulin