Patents by Inventor Glenn Mitchel Walls

Glenn Mitchel Walls 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: 7104323
    Abstract: An expandable device for use in tubulars. The device comprises an outer tubular having a series of slots therein, with the slots being arranged about the exterior of the outer tubular. The device further includes an inner tubular disposed within the outer tubular, and a setting tool for moving the outer tubular in a first direction in order to expand the outer tubular along the slots. In one preferred embodiment, the slots are arranged about the outer tubular in a spiral pattern. In yet another preferred embodiment, the slots are arranged about the outer tubular in a first spiral pattern and wherein the first spiral pattern extends to a second spiral pattern. The setting tool, in one embodiment, comprises an outer setting sleeve connected to the outer tubular and a mandrel being connected to the inner member, and wherein the outer setting sleeve causes a downward force against the outer tubular so that the outer tubular expands. A method of expanding a device within a tubular is also disclosed.
    Type: Grant
    Filed: July 1, 2003
    Date of Patent: September 12, 2006
    Inventors: Robert Bradley Cook, Glenn Mitchel Walls