Patents by Inventor Jack W. Raisch

Jack W. Raisch 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).

  • Ultrasonic transducer apparatus and method for high temperature measurements
    Patent number: 4567770
    Abstract: A non-destructive method and apparatus for inspecting materials in excess of 500.degree. C. includes a dual transducer disposed upon a delay line suitable for operation at the elevated temperatures. The delay line is divided into two parts acoustically isolated and is cooled by a fluid to maintain the surface upon which the transducers are mounted at a safe operating temperature.
    Type: Grant
    Filed: March 21, 1983
    Date of Patent: February 4, 1986
    Assignee: Sonic Instruments Inc.
    Inventors: John G. Rumbold, Jack W. Raisch