Patents by Inventor Karl Schnabl

Karl Schnabl 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).

  • Eddy current testing device for metal tubes or pipes having a quick release coupling with a bayonet lock
    Patent number: 4438399
    Abstract: Probe for eddy-current testing of tubes, the probe having a conically tipped guidance head and a cylindrical coil form, includes a jacket flexible in radial direction disposed between the guidance head and the coil form, the jacket being prestressed uniformly outwardly and having a diameter greater than that of the cylindrical coil form.
    Type: Grant
    Filed: August 22, 1979
    Date of Patent: March 20, 1984
    Assignee: Kraftwerk Union Aktiengesellschaft
    Inventors: Karl Schnabl, Eberhard Hoppner, Hans Kastl