Patents by Inventor John H. Michel

John H. Michel 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).

  • Center column extension for a clarifier
    Patent number: 5534163
    Abstract: A clarifier having a center column is provided with means in the form of a center column extension which may be attached to the center column to allow repairs or maintenance to be conducted on the clarifier inlet piping without shutting down the operation of the clarifier.
    Type: Grant
    Filed: June 23, 1995
    Date of Patent: July 9, 1996
    Assignee: Westvaco Corporation
    Inventor: John H. Michel