Patents by Inventor Terry Hrdina

Terry Hrdina 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).

  • Exhaust fan assembly
    Publication number: 20050170767
    Abstract: An exhaust fan assembly is provided for expelling contaminated air from a building. The assembly includes a plenum, a fan assembly attached to the plenum, and a windband mounted on top of the fan assembly. The fan assembly is constructed of cylindrical outer and inner walls which define a bearing chamber and surrounding annular space. A fan driven by a shaft extending downward from the bearing chamber draws exhaust air from the plenum and blows it up through the annular space to a nozzle at the top of the fan assembly.
    Type: Application
    Filed: November 9, 2004
    Publication date: August 4, 2005
    Inventors: John Enzenroth, Terry Hrdina, Kishor Khankari, Scott Koeppel, Edward Legner, Timothy Mathson, Anthony Rossi, Michael Seliger
  • Pivotal direct drive motor for exhaust assembly
    Publication number: 20050159101
    Abstract: An exhaust assembly is provided for expelling contaminated air from a building. The assembly includes a plenum, a fan assembly attached to the plenum, and a windband mounted on top of the fan assembly. The fan assembly is constructed of cylindrical outer and inner walls which define a drive chamber and surrounding annular space. A fan driven by a motor whose shaft extends downward from the drive chamber draws exhaust air from the plenum and blows it up through the annular space to a nozzle at the top of the fan assembly. The motor is pivotally mounted inside the assembly to provide access to the motor components when it is desired to perform inspection and maintenance.
    Type: Application
    Filed: August 24, 2004
    Publication date: July 21, 2005
    Inventors: Terry Hrdina, Scott Koeppel, Michael Seliger