Patents by Inventor Harmut Kronenberg

Harmut Kronenberg 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).

  • Level indication
    Patent number: 4635043
    Abstract: A level indication has a ratio-measurement mechanism whose measurement coil can be connected to a source of current (6) via a switch element (12). This switch element (12) is controlled by the output of a comparator (10) to the input side of which a voltage signal from a transmitter (5) monitoring the level and the output of a frequency transmitter (11) are fed. Between the transmitter (5) and the comparator (10) there is arranged a damping device (8) so that the signal coming from the transmitter (5) is made stable before it arrives at the comparator (10).
    Type: Grant
    Filed: June 21, 1985
    Date of Patent: January 6, 1987
    Assignee: VDO Adolf Schindling AG
    Inventors: Harmut Kronenberg, Bernhard v. Pentz