Patents by Inventor Jürg Dieter Stefan Rödenberger

Jürg Dieter Stefan Rödenberger 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).

  • A FIRE RESISTANT VENTILATION DUCT AND A METHOD OF MANUFACTURING AND INSTALLING SUCH VENTIALTION DUCT
    Publication number: 20230003333
    Abstract: A ventilation duct for a fire rated ventilation duct wall penetration has one or more metal sheets forming said duct, wherein said metal sheet duct is covered on the outside by a heat insulating material, and said duct includes elongated stiffening members located on the outside of the duct and attached to said metal sheets. The stiffening members each comprises a metal profile and at least one non-combustible bar of inorganic material. The metal profile is fixed to the metal sheet of the duct and retains the non-combustible bar by at least partly encircling the bar.
    Type: Application
    Filed: December 11, 2020
    Publication date: January 5, 2023
    Inventors: Kurt Munk Pedersen, Jürg Dieter Stefan Rödenberger, Markus Thoma