Patents by Inventor David Alexander Lines

David Alexander Lines 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).

  • Internal inspection of pipelines
    Patent number: 11371642
    Abstract: A pig has a body of resiliently compressible material extending along a central longitudinal axis. At least one strain gauge is embedded in the material of the body. The or each strain gauge extends transversely with respect to the central longitudinal axis and is arranged to deflect and elongate longitudinally with longitudinal deflection of a forward end of the body.
    Type: Grant
    Filed: April 11, 2019
    Date of Patent: June 28, 2022
    Assignee: Subsea 7 Limited
    Inventor: David Alexander Lines
  • Internal Inspection of Pipelines
    Publication number: 20210088169
    Abstract: A pig for internal pipeline inspection has a body of resiliently compressible material extending along a central longitudinal axis. At least one strain gauge is embedded in the material of the body. The or each strain gauge extends transversely with respect to the central longitudinal axis and is arranged to deflect and elongate longitudinally with longitudinal deflection of a forward end of the body.
    Type: Application
    Filed: April 11, 2019
    Publication date: March 25, 2021
    Inventor: David Alexander Lines