Patents by Inventor Gregory H. Zaiser

Gregory H. Zaiser 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).

  • Apparatus for cleaning cylindrical air filters
    Patent number: 5584900
    Abstract: An apparatus for cleaning a generally cylindrical air filter. The apparatus includes a carriage for receiving the air filter in a generally axially vertical orientation. The carriage is selectively turned to orient the filter generally horizontally. Dirt and debris are dislodged selectively from an inside cylindrical surface and an outside cylindrical surface of the filter by a air pressure nozzle and a pneumatic hammer, respectively. A vacuum apparatus collects the dirt and debris that is dislodged from the filter.
    Type: Grant
    Filed: December 19, 1994
    Date of Patent: December 17, 1996
    Inventors: Gregory H. Zaiser, Harold W. Zaiser