Patents by Inventor Mandred Ketzer

Mandred Ketzer 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).

  • Tape recorder stopping mechanism
    Patent number: 4190215
    Abstract: A mechanism for performing a control function such as switching off an apparatus such as a tape recorder upon stopping of the rotary movement of a component at a time that other parts of the apparatus are still rotating. A pivotally mounted lever oscillates in response to rotation of the component, and stays at a central position upon stopping of the component. A coupling rod links the lever to a reciprocating connecting rod, and diverts the connecting rod from a path which will intercept the control function actuating device when the lever oscillates away from the central position.
    Type: Grant
    Filed: September 12, 1978
    Date of Patent: February 26, 1980
    Assignee: U.S. Philips Corporation
    Inventors: Istvan _ Hochbaum, Mandred Ketzer, Friedrich Laa, Johann Veigl