Patents by Inventor J. Paul Femiani

J. Paul Femiani 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).

  • Rotating air filter cleaning arrangement
    Patent number: 5238473
    Abstract: A rotary filter cleaning arrangement (10) for air ducts (100) having a generally rectangular cross-sectional configuration; wherein, the arrangement includes a generally circular filter member (40) mounted for rotary movement on the output shaft (21) of a drive motor (20) suspended from a framework member (30) having a central aperture (32); wherein, the filter member (40) is suspended over the central aperture (32) and cleaned by a radially disposed vacuum arm member (50).
    Type: Grant
    Filed: July 6, 1992
    Date of Patent: August 24, 1993
    Inventor: J. Paul Femiani