Patents by Inventor Donald F. Nichols

Donald F. Nichols 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).

  • Surge devices for liquid-solid separators
    Patent number: 4376050
    Abstract: The specification discloses surge controlling means for a liquid-solid separator. A plurality of surge compartments are provided above overflow weirs in a holding tank for the liquid-solid material.
    Type: Grant
    Filed: April 9, 1981
    Date of Patent: March 8, 1983
    Assignee: Morrison-Knudsen Company, Inc.
    Inventor: Donald F. Nichols