Patents by Inventor E.P. Hofer

E.P. Hofer 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).

  • Crane or digger for swinging a load hanging on a support cable with damping of load oscillations
    Publication number: 20040164041
    Abstract: The invention concerns a crane or excavator for traversing a load hanging from a load cable, which is movable in three spatial directions. The crane or excavator has a computer- controlled regulation for the damping of load swings, which contains a path planning module, a centripetal force compensation unit and at least one shaft regulator for the rotating gear, one shaft regulator for the luffing gear and one shaft regulator for the lifting gear.
    Type: Application
    Filed: January 16, 2004
    Publication date: August 26, 2004
    Inventors: Oliver Sawodny, Jorg Kumpel, Cristina Tarin-Sauer, Harald Aschemann, E.P. Hofer, Klaus Schneider