Patents by Inventor J. C. Smith

J. C. Smith 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).

  • Liner and reinforcing swage for conduit in a wellbore and method and apparatus for setting same
    Patent number: 3948321
    Abstract: Method and apparatus for emplacing a liner in a conduit in a well penetrating subterranean formations characterized by suspending at a predetermined depth in the well at least one annular liner having an annular body portion and an adjacent, concentrically disposed swage means that is adapted for being driven interiorly of the body portion for expanding the latter outwardly into contact with the conduit; firing a setting tool in the method to drive the swage means concentrically interiorly of the body portion; and removing the setting tool, leaving the swage and the body portion set in the conduit with a large bore penetrating longitudinally thereof. Also disclosed are straddle patches having a liner at each end, either set in a unitary operation or set by a two-step operation; other combinations employing the liners and the specific apparatus for setting the liners.
    Type: Grant
    Filed: August 29, 1974
    Date of Patent: April 6, 1976
    Assignee: Gearhart-Owen Industries, Inc.
    Inventors: Harrold D. Owen, Robert Lee Roper, J. C. Smith, James Douglas Young