Patents by Inventor Darrel P. Kohlhorst

Darrel P. Kohlhorst 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).

  • Coil volumetric and surface defect detection system
    Patent number: 5866820
    Abstract: A EMAT inspection system is utiliized on sheet metal prior to it being formed or rolled to identify surface defects and sub-surface defects such as pencil pipe inclusions by using ultrasonic Lamb waves with the results being displayed on a remote screen of a display and control system which also records the inspection results and controls the EMAT system.
    Type: Grant
    Filed: September 20, 1996
    Date of Patent: February 2, 1999
    Inventors: Kenneth R. Camplin, Dennis D. Lang, Darrel P. Kohlhorst, Daniel P. Geier, Gary D. Novak, Sean M. Fitzpatrick, Glenn E. McNeelege, Bradley E. Cox, Richard C. Brewer, Thomas A. Artman, Mark A. Hooker
  • Automated mill roll inspection system
    Patent number: 5763786
    Abstract: An EMAT inspection system is utilized on a mill roll to identify surface and sub-surface defects such as firecracks in steel mill rolls with the results being displayed on a remote screen of a display and control system which also records the inspection results and controls the EMAT system.
    Type: Grant
    Filed: September 18, 1996
    Date of Patent: June 9, 1998
    Assignee: The Babcock & Wilcox Company
    Inventors: Kenneth R. Camplin, Dennis D. Lang, Darrel P. Kohlhorst, Daniel P. Geier, Sean M. Fitzpatrick, Bradley E. Cox, Richard C. Brewer, Thomas A. Artman, Daniel T. MacLauchlin