Patents by Inventor Vinzenz Holzberger

Vinzenz Holzberger 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).

  • Fan unit for use with duct systems
    Patent number: 4798518
    Abstract: A fan unit is designed for installation in ducting systems or in similar casings in air conditioning and ventilation systems. The fan unit has a freely turning radial impeller without any spiral housing and has a driving motor for the impeller. Downstream from the outlet of the impeller, there is a guiding structure for redirecting the flow coming radially out of the impeller to an axial direction.
    Type: Grant
    Filed: March 9, 1982
    Date of Patent: January 17, 1989
    Assignee: Wilhelm Gebhardt GmbH
    Inventors: Vinzenz Holzberger, Friedrich Koger