Patents by Inventor Anthony A. Chiarella

Anthony A. Chiarella 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).

  • Agitator including impeller assembly and shaft having interference fit
    Patent number: 4508455
    Abstract: A shaft and an impeller assembly formed by individual blade members are connected together in an interference fitted connection. Both the shaft and impeller assembly are coated with a corrosion resistant material and the connection is created between the coated surfaces.
    Type: Grant
    Filed: November 21, 1983
    Date of Patent: April 2, 1985
    Assignee: De Dietrich (USA), Inc.
    Inventors: Michael J. Lerman, Richard Koehl, Anthony A. Chiarella, William Zamory