Patents by Inventor Joachim Hoppen

Joachim Hoppen 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).

  • Lifting and transporting stacks of ferromagnetic plates
    Patent number: 8213149
    Abstract: A stack of ferromagnetic sheets is gripped, lifted, and transported by first engaging with an uppermost sheet of the stack a plurality of magnet assemblies of a magnetic grab, each assembly having at least one electromagnet, then electrically energizing the electromagnets and lifting the stack with the grab while monitoring a magnetic flux of each electromagnet. A controller then compares the fluxes of the electromagnets, and varies the electrical energization of at least one of the electromagnets such that the fluxes of all the electromagnets are generally equal. The system has at least one flux sensor on each of the magnet assemblies and connected to the controller.
    Type: Grant
    Filed: January 19, 2010
    Date of Patent: July 3, 2012
    Assignee: Thyssenkrupp Millservices & Systems GmbH
    Inventors: Thomas Gerd Pohl, Wilhelm Cassing, Joachim Hoppen, Falk Steger
  • LIFTING AND TRANSPORTING STACKS OF FERROMAGNETIC PLATES
    Publication number: 20100201468
    Abstract: A stack of ferromagnetic sheets is gripped, lifted, and transported by first engaging with an uppermost sheet of the stack a plurality of magnet assemblies of a magnetic grab, each assembly having at least one electromagnet, then electrically energizing the electromagnets and lifting the stack with the grab while monitoring a magnetic flux of each electromagnet. A controller then compares the fluxes of the electromagnets, and varies the electrical energization of at least one of the electromagnets such that the fluxes of all the electromagnets are generally equal. The system has at least one flux sensor on each of the magnet assemblies and connected to the controller.
    Type: Application
    Filed: January 19, 2010
    Publication date: August 12, 2010
    Inventors: Thomas Gerd POHL, Wilhelm Cassing, Joachim Hoppen, Falk Steger