Patents by Inventor Steffen Helfrich

Steffen Helfrich 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 and method for operating a crane using recovery of energy from crane operations as a secondary energy source
    Patent number: 8857635
    Abstract: A crane, in particular a large crane, including a power consumer system for providing energy, a primary energy source for feeding primary energy into the power consumer system, at least one secondary energy source, independent of the primary energy source, for feeding secondary energy into the power consumer system, at least one energy storage unit arranged locally on the crane and is, in particular, associated with the at least one crane component and connected to the power consumer system for storing primary energy and/or secondary energy, at least one drive motor connected to the power consumer system for operating at least one crane component and a secondary energy source configured such that energy returned from the crane operation is at least partially fed as secondary energy into the power consumer system. The at least one crane component is configured as a secondary energy source for energy recovery.
    Type: Grant
    Filed: December 22, 2010
    Date of Patent: October 14, 2014
    Assignee: Terex Cranes Germany GmbH
    Inventors: Alfons Weckbecker, Marc Krebs, Axel Beckmann, Frank Schnittker, Steffen Helfrich
  • CRANE AND METHOD FOR OPERATING A CRANE USING RECOVERY OF ENERGY FROM CRANE OPERATIONS AS A SECONDARY ENERGY SOURCE
    Publication number: 20120160796
    Abstract: A crane, in particular a large crane, including a power consumer system for providing energy, a primary energy source for feeding primary energy into the power consumer system, at least one secondary energy source, independent of the primary energy source, for feeding secondary energy into the power consumer system, at least one energy storage unit arranged locally on the crane and is, in particular, associated with the at least one crane component and connected to the power consumer system for storing primary energy and/or secondary energy, at least one drive motor connected to the power consumer system for operating at least one crane component and a secondary energy source configured such that energy returned from the crane operation is at least partially fed as secondary energy into the power consumer system. The at least one crane component is configured as a secondary energy source for energy recovery.
    Type: Application
    Filed: December 22, 2010
    Publication date: June 28, 2012
    Applicant: TEREX DEMAG GMBH
    Inventors: Alfons WECKBECKER, Marc Krebs, Axel Beckmann, Frank Schnittker, Steffen Helfrich