Patents by Inventor Peter Schurr

Peter Schurr 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).

  • Sonic echo-sounder for the measurement of levels of substances
    Patent number: 4101865
    Abstract: An acoustic echo-sounder arranged to determine the level of a substance in a container. The echo-sounder includes an acoustic transducer fitted to one end of an acoustic wave-guide, the acoustic impedance of which is progressively matched to the acoustic impedance of the space containing the substance in order to avoid disturbing reflections. In a preferred embodiment, the end portion of the acoustic wave-guide is constructed so that its solid cross-section diminishes progressively towards the end of the wave-guide.
    Type: Grant
    Filed: October 5, 1976
    Date of Patent: July 18, 1978
    Assignee: Endress & Hauser GmbH & Co.
    Inventor: Peter Schurr