Patents by Inventor William Ball Roy

William Ball Roy 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).

  • Tubing expansion tool
    Patent number: 7325618
    Abstract: The invention relates to a tubing expansion tool including an expansion member which is movable between a first configuration and a larger expansion configuration for expanding tubing, and to a corresponding method. In one embodiment of the invention, a tubing expansion tool (10) is disclosed for expanding a length of expandable tubing such as expandable sand exclusion tubing (12). The tool (10) comprises an expansion member (16) adapted for movement between a first configuration and a larger expansion configuration, and means (17) for exerting a cyclical expansion force on the expansion member (16).
    Type: Grant
    Filed: August 6, 2004
    Date of Patent: February 5, 2008
    Assignee: Weatherford/Lamb, Inc.
    Inventors: Neil Andrew Abercrombie Simpson, William Ball Roy