Patents by Inventor Diane J. Chinn

Diane J. Chinn 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).

  • Guided acoustic wave inspection system
    Patent number: 6799466
    Abstract: A system for inspecting a conduit for undesirable characteristics. A transducer system induces guided acoustic waves onto said conduit. The transducer system detects the undesirable characteristics of the conduit by receiving guided acoustic waves that contain information about the undesirable characteristics. The conduit has at least two sides and the transducer system utilizes flexural modes of propagation to provide inspection using access from only the one side of the conduit. Cracking is detected with pulse-echo testing using one transducer to both send and receive the guided acoustic waves. Thinning is detected in through-transmission testing where one transducer sends and another transducer receives the guided acoustic waves.
    Type: Grant
    Filed: March 19, 2002
    Date of Patent: October 5, 2004
    Assignee: The Regents of the University of California
    Inventor: Diane J. Chinn
  • Guided acoustic wave inspection system
    Publication number: 20020134161
    Abstract: A system for inspecting a conduit for undesirable characteristics. A transducer system induces guided acoustic waves onto said conduit. The transducer system detects the undesirable characteristics of the conduit by receiving guided acoustic waves that contain information about the undesirable characteristics. The conduit has at least two sides and the transducer system utilizes flexural modes of propagation to provide inspection using access from only the one side of the conduit. Cracking is detected with pulse-echo testing using one transducer to both send and receive the guided acoustic waves. Thinning is detected in through-transmission testing where one transducer sends and another transducer receives the guided acoustic waves.
    Type: Application
    Filed: March 19, 2002
    Publication date: September 26, 2002
    Applicant: The Regents of the University of California
    Inventor: Diane J. Chinn