Patents by Inventor Gabor Ujvari

Gabor Ujvari 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).

  • Anti-backdraft shutter assembly for an axial flow fan
    Patent number: 6454247
    Abstract: An anti-draft shutter assembly for an axial flow fan fitted to a duct. The assembly includes at least one counterbalanced flap supported downstream of airflow from the fan when in operation, and at least one of the flaps being pivotally supported outside the perimeter of the duct. The flap is biased by a counterbalance weight toward a duct closing position to close the duct when the fan is not operating. In the preferred embodiment, at least one flap is held in the closed position by a magnetic catch on the flap.
    Type: Grant
    Filed: December 7, 2000
    Date of Patent: September 24, 2002
    Assignee: FF Seeley Nominees Pty Ltd
    Inventor: Gabor Ujvari
  • Anti-backdraft shutter assembly for an axial flow fan
    Publication number: 20010021637
    Abstract: An anti-draft shutter assembly for an axial flow fan fitted to a duct. The assembly consists of at least one counterbalanced flap 25 supported downstream of airflow from the fan when in operation, and at least one of the flaps beign pivotally supported outside the perimeter of the duct. The flap is biased by a counterbalance weight toward a duct closing position to close the duct when the fan is not operating. In the preferred embodiment, at least one flap is held in the closed position by a magnetic catch on the flap.
    Type: Application
    Filed: December 7, 2000
    Publication date: September 13, 2001
    Applicant: FF Seeley Nominees Pty. Ltd.
    Inventor: Gabor Ujvari