Patents by Inventor Stuart Thomas Craig

Stuart Thomas Craig 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).

  • Patent number: 10444012
    Abstract: While typically-collected diameter data contains information for detecting some garter springs, many garter springs may not be detected without processing the diameter data. Responsively, a method for processing the diameter data to detect the garter springs has been developed. In particular, the processing involves fitting of the diameter data to a shape, determining residual errors and using the residual errors to locate garter springs.
    Type: Grant
    Filed: November 25, 2014
    Date of Patent: October 15, 2019
    Inventors: Stuart Thomas Craig, Kenneth Robert Chaplin
  • Patent number: 9551690
    Abstract: A phased array ultrasonic probe may be mounted to a component to be inspected for wall thickness on an apparatus that includes a split ring adapted to be magnetically held in place on the component. In particular, the probe may be mounted to a carriage connected to the split ring in a manner that allows the carriage to rotate around the split ring while the probe is in operation. Between the probe and the component, a transducer shoe defining, by a flexible membrane, a cavity and an aperture. Conveniently, the construction of the flexible membrane allows wall thickness measurements to be acquired in portions of the component that have complex topography, such as welds. The apparatus is installed on an adaptor assembly for inspection of straight section of pipes. This adaptor assembly is not used in absence of straight section.
    Type: Grant
    Filed: March 30, 2012
    Date of Patent: January 24, 2017
    Assignee: Atomic Energy Of Canada Limited
    Inventors: Michel Joseph Gilles Gaudet, Robert Hayden Lumsden, Glenn Curtis Longhurst, Kristopher Kyle Jones, Stuart Thomas Craig, David Walter Dunford, Paul Gregory Adams, Kenneth Robert Chaplin, Helene Marie Hebert
  • Publication number: 20150106055
    Abstract: While the typically-collected diameter data contains information for detecting some garter springs, many garter springs may not be detected without processing the diameter data. Responsively, a method for processing the diameter data to detect the garter springs has been developed. In particular, the processing involves fitting of the diameter data to a shape, determining residual errors and using the residual errors to locate garter springs.
    Type: Application
    Filed: November 25, 2014
    Publication date: April 16, 2015
    Inventors: Stuart Thomas Craig, Kenneth Robert Chaplin
  • Publication number: 20140076053
    Abstract: A phased array ultrasonic probe may be mounted to a component to be inspected for wall thickness on an apparatus that includes a split ring adapted to be magnetically held in place on the component. In particular, the probe may be mounted to a carriage connected to the split ring in a manner that allows the carriage to rotate around the split ring while the probe is in operation. Between the probe and the component, a transducer shoe defining, by a flexible membrane, a cavity and an aperture. Conveniently, the construction of the flexible membrane allows wall thickness measurements to be acquired in portions of the component that have complex topography, such as welds. The apparatus is installed on an adaptor assembly for inspection of straight section of pipes. This adaptor assembly is not used in absence of straight section.
    Type: Application
    Filed: March 30, 2012
    Publication date: March 20, 2014
    Applicant: Atomic Energy Of Canada Limited
    Inventors: Michel Joseph Gilles Gaudet, Robert Hayden Lumsden, Glenn Curtis Longhurst, Kristopher Kyle Jones, Stuart Thomas Craig, David Walter Dunford, Paul Gregory Adams, Kenneth Robert Chaplin, Helene Marie Hebert