Patents by Inventor J. David Correll

J. David Correll 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).

  • Backward inclined fan impeller
    Patent number: 5980207
    Abstract: A backward inclined fan impeller features a plurality of blades attached to a shroud ring and base for use in transporting corrosive materials. The impeller assembly is substantially corrosion resistant while maintaining adequate performance characteristics. Rotary power actuates the impeller assembly.
    Type: Grant
    Filed: August 20, 1997
    Date of Patent: November 9, 1999
    Assignee: Xerxes Corporation
    Inventor: J. David Correll