Patents by Inventor Bert Kroschel

Bert Kroschel 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).

  • HYBRID DRIVE FOR A TRUCK MIXING DRUM
    Publication number: 20130276577
    Abstract: The invention relates to a drive unit for a mixing drum that is disposed on a motor vehicle, in which an electric motor or a hydraulic drive comprising a displacement pump and a hydraulic motor can be used to drive the mixing drum. The low-power electric motor is used to drive the mixing drum at low rotational speed during the transport journey of the mixed concrete to the building site, while the hydraulic drive drives the mixing drum at high rotational speed during loading, mixing and discharging.
    Type: Application
    Filed: October 4, 2011
    Publication date: October 24, 2013
    Applicant: SAUER-DANFOSS GmbH & Co. OHG
    Inventors: Bert Kroschel, Joachim Hergt, Jan Jakubovic, Peter Krissak