Patents by Inventor Eric O. Ericsson

Eric O. Ericsson 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).

  • Pulp washer
    Patent number: 4154644
    Abstract: A horizontal, Fourdrinier foraminous belt type, countercurrent, high-capacity, cellulose pulp washer is described. The described washer is equipped with a hood positioned over a portion of the belt and over vacuum boxes or receptacles under the upper loop of the belt. The gases and vapors drawn into the vacuum boxes or receptacles with the wash liquid are separated from the liquid in the receptacles and recycled to the hood to control the atmosphere in the hood and maintain the desired pressure differential for operation of the washer.
    Type: Grant
    Filed: February 27, 1978
    Date of Patent: May 15, 1979
    Assignee: Georgia-Pacific Corporation
    Inventor: Eric O. Ericsson