Patents by Inventor Vivonne Thwaites

Vivonne Thwaites 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).

  • Method and apparatus for carrying out non-destructive testing of materials
    Patent number: 7270004
    Abstract: A method of testing a material sample for defects, comprising the steps of applying a test signal to the material sample, receiving a return signal from the material sample and analysing the return signal to determine whether the material sample is defective. In one aspect of the present invention the steps of receiving a return signal and analysing it include the step of selecting a frequency range to reduce the effect of potentially interfering signals. In another aspect of the present invention a reference signal obtained from a non-defective sample is subtracted from the return signal to give a difference result and the difference result is indicative of whether the material sample is defective. Apparatus for carrying out the above-defined methods are also provided.
    Type: Grant
    Filed: April 19, 2002
    Date of Patent: September 18, 2007
    Assignee: Commonwealth Scientific and Industrial Research Organisation
    Inventors: Laurence Dickinson, Vivonne Thwaites, legal representative, Suszanne Thwaites, deceased
  • Method and apparatus for carrying out non-destructive testing of materials
    Publication number: 20060048578
    Abstract: A method of testing a material sample for defects, comprising the steps of applying a test signal to the material sample, receiving a return signal from the material sample and analysing the return signal to determine whether the material sample is defective. In one aspect of the present invention the steps of receiving a return signal and analysing it include the step of selecting a frequency range to reduce the effect of potentially interfering signals. In another aspect of the present invention a reference signal obtained from a non-defective sample is subtracted from the return signal to give a difference result and the difference result is indicative of whether the material sample is defective. Apparatus for carrying out the above-defined methods are also provided.
    Type: Application
    Filed: April 19, 2002
    Publication date: March 9, 2006
    Inventors: Laurence Dickinson, Suszanne Thwaites, Vivonne Thwaites
  • Probe for non-destructive testing
    Publication number: 20050111011
    Abstract: The present invention provides a probe for non-destructive testing of items. The probe is movable over a surface of a test item and includes a displacement sensor means for providing a displacement signal indicative of the spatial displacement of the probe over the test item as the probe is moved over the test item. The invention also provides the above-defined probe with a receiver for receiving a return signal from the non-destructive testing of the item and a non-destructive testing system comprising the probe.
    Type: Application
    Filed: October 18, 2004
    Publication date: May 26, 2005
    Inventors: Laurence Dickinson, Suszanne Thwaites, Stewart Wagner, Vivonne Thwaites
  • Probe for non-destructive testing
    Publication number: 20040145754
    Abstract: The present invention provides a probe for non-destructive testing of items. The probe is movable over a surface of a test item and includes a displacement sensor means for providing a displacement signal indicative of the spatial displacement of the probe over the test item as the probe is moved over the test item. The invention also provides the above-defined probe with a receiver for receiving a return signal from the non-destructive testing of the item and a non-destructive testing system comprising the probe.
    Type: Application
    Filed: October 17, 2003
    Publication date: July 29, 2004
    Inventors: Laurence Philip Dickinson, Suszanne Thwaites, Vivonne Thwaites, Stewart Wagner