Patents by Inventor Klaus Grass

Klaus Grass 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).

  • Electromechanical filling-level measurement
    Patent number: 4236314
    Abstract: An electromechanical filling level measuring apparatus for the intermittent measurement of the filling level in a container with the help of a measuring tape that is wound on a spool driven by an electric motor and to the lower end of which a sensing weight is secured. Switching means are provided for the reversal and for the switching off of the electric motor that respond respectively when the sensing weight encounters the surface of the filling medium during paying-out of the measuring tape and when an upper limiting position is reached during the winding-in of the measuring tape. A detector device determines and indicates the length of the measuring tape paid out or wound in.
    Type: Grant
    Filed: September 29, 1978
    Date of Patent: December 2, 1980
    Assignee: Endress u. Hauser GmbH u. Co.
    Inventors: Klaus Schmidt, Klaus Grass