Patents by Inventor Ekkehard Behl

Ekkehard Behl 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).

  • Electrodynamic transducer head
    Patent number: 4596147
    Abstract: An electrodynamic transducer head for the non-destructive ultrasonic testing of workpieces (12) comprises an electromagnet having a magnet yoke with an external pole shoe and an internal pole shoe (10, 14) surrounded by the external pole shoe. Exciting and receiving coils (16, 18) are arranged on these pole shoes. To enable the internal pole shoe (10, 14) to be placed directly on the workpiece (12) moving relative thereto without danger, these pole shoes are provided with a protective cap (20) surrounded by a protective ring (22), the end face of the protective ring (22) turned towards the workpiece (12) projecting beyond that of the protective cap.
    Type: Grant
    Filed: January 11, 1985
    Date of Patent: June 24, 1986
    Assignee: Nukem GmbH
    Inventors: Ekkehard Behl, Gerhard Huschelrath, Ewald Kowol