Patents by Inventor Friedrich Hoering

Friedrich Hoering 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).

  • Broadband omnidirectional electroacoustic transducer
    Patent number: 4916675
    Abstract: An omnidirectional acoustic transducer achieves a broadband radiation or reception pattern with high efficiency by using several transducer rings located side-by-side with each ring comprising a plurality of radially directed individual transducer elements. The transducer elements in each of the rings are tuned to a particular natural frequency and are designed accordingly. Within each ring the transducer elements are energized in phase with one another. The natural frequency of the individual transducer elements differs from one ring to the other.
    Type: Grant
    Filed: May 1, 1989
    Date of Patent: April 10, 1990
    Assignee: Honeywell Elac Nautik GmbH
    Inventor: Friedrich Hoering