Patents by Inventor Eric Bollensen

Eric Bollensen 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).

  • Bearing protection device for liquid aerators
    Patent number: 5160667
    Abstract: An apparatus for the treatment of liquid by aeration is provided. The apparatus has a motor, a propeller carried by a motor-driven shaft, an airflow passage to the propeller, and bearings supporting the shaft at at least one location spaced from the motor. In accordance with the present invention, an air pocket is established about at least one of the bearings for keeping liquid from the bearings as by a conical member extending over the shaft from the bearing.
    Type: Grant
    Filed: August 26, 1991
    Date of Patent: November 3, 1992
    Assignee: Aeromix Systems, Incorporated
    Inventors: Peter S. Gross, Eric Bollensen, Richard Rajendren