Patents by Inventor Aaron D. Willis

Aaron D. Willis 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).

  • Valve assembly for decanter for wastewater treatment facility
    Patent number: 5036882
    Abstract: A pressure responsive valve assembly for use in a decanting apparatus for a wastewater treatment reactor. The valve assembly includes a cylindrical valve plate, a valve member support structure, a valve spring, and a valve member comprising a valve stem and a valve head. A discharge passageway extending through the valve plate has a frusto-conical valve seat located therein. The valve head also has a frusto-conical design having an angle of divergence smaller than that of the valve seat so that when the valve head is biased against the valve seat by the valve spring, the valve seat sealingly engages a peripheral edge of the valve seat. The valve member support structure maintains the valve member in proper alignment with the valve seat and in engaging relationship with the valve spring.
    Type: Grant
    Filed: July 31, 1990
    Date of Patent: August 6, 1991
    Assignee: JMO Holding, Inc.
    Inventors: Kenneth L. Norcross, Dennis L. Nelson, Aaron D. Willis, James E. Augustyn