Patents by Inventor Charles F. Raatz, Jr.

Charles F. Raatz, Jr. 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).

  • Apparatus and method for ultrasonic fastener hole inspection
    Patent number: 3977236
    Abstract: An ultrasonic scanner positions a transducer with respect to a fastener hole, with an installed fastener, to adjustably control transducer direction and location and to maintain transducer contact while scanning the hole. The scanner synchronizes transducer location during scanning cycle and transmits ultrasonic echoes from the transducer into a storage display monitor to detect flaws.
    Type: Grant
    Filed: October 21, 1974
    Date of Patent: August 31, 1976
    Assignee: The Boeing Company
    Inventors: Charles F. Raatz, Jr., Russell K. Woodbury, Wayne E. Woodmansee