Patents by Inventor Gerhard Zenne

Gerhard Zenne 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).

  • MIXER
    Publication number: 20170266842
    Abstract: The present invention relates to a mixer, preferably to a ring-pan mixer, having a mixing trough and a mixer rotor that is rotatable via a drive motor about a substantially vertical axis of rotation and at which at least one mixing tool drivable via a separate drive motor is arranged rotatable about a separate axis of rotation, wherein the drive speeds of the mixer rotor and of the at least one mixing tool can be set independently of one another, with the mixer rotor and the at least one mixing tool being able to be set via a transmission independently of one another.
    Type: Application
    Filed: March 6, 2017
    Publication date: September 21, 2017
    Inventor: Gerhard Zenne
  • Drum drive for a truck mixer
    Patent number: 8864364
    Abstract: The present invention relates to a drum drive for a truck mixer with a vehicle drive train and a mixing drum, wherein the drum drive can be driven by at least one electric motor.
    Type: Grant
    Filed: February 4, 2010
    Date of Patent: October 21, 2014
    Assignee: Liebherr-Mischtechik GmbH
    Inventor: Gerhard Zenne
  • Drum Drive for a Truck Mixer
    Publication number: 20100226197
    Abstract: The present invention relates to a drum drive for a truck mixer with a vehicle drive train and a mixing drum, wherein the drum drive can be driven by at least one electric motor.
    Type: Application
    Filed: February 4, 2010
    Publication date: September 9, 2010
    Applicant: LIEBHERR-MISCHTECHNIK GMBH
    Inventor: Gerhard Zenne