Patents by Inventor Markus Kollmann

Markus Kollmann 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).

  • Electrical Work Machine Having a Cooled Battery
    Publication number: 20230138832
    Abstract: A work machine, such as a vibration tamper or a vibratory plate machine, includes a work device such as a ground contact plate, and a drive for driving the work device. The drive has an electric drive motor, an electric power accumulator for supplying the drive motor with an electric current, and an inverter installation for inverting the current from the power accumulator and for supplying the current to the drive motor. A cooling device is provided for cooling the power accumulator and the inverter installation. The cooling device has at least one fan installation for generating a cooling airflow which is able to be guided by way of the power accumulator and the inverter installation. The fan installation has a fan and a fan motor that drives the fan. The fan motor is provided separately from the drive motor of the drive.
    Type: Application
    Filed: October 28, 2022
    Publication date: May 4, 2023
    Inventors: Steffen Galle, Matthias Bachmann, Alto Weiskopf, Robert Hartmann, Florian Forstner, Markus Kollmann