Patents by Inventor Michael Hufen

Michael Hufen 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).

  • Door leaf actuator
    Publication number: 20050178066
    Abstract: A door leaf actuator includes a system carrier on which a door closer and other components are arranged. The door closer is arranged in such a way that its drive axle lies as close as possible to one end of the system carrier. In this way, a door leaf drive is provided which is constructed in a simple manner and is easy to service but which nevertheless has only small dimensions.
    Type: Application
    Filed: January 9, 2004
    Publication date: August 18, 2005
    Inventors: Matthias Drux, Holger Hansch, Thomas Wildforster, Michael Hufen