Patents by Inventor Kenneth McTernaghan

Kenneth McTernaghan 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).

  • Downhole tool for assisting in separating and reconnecting well tubing
    Patent number: 5518072
    Abstract: A downhole tool comprising a stinger body including a tubular extension adapted to be inserted into a first end portion of a well tubing, a seal carried on the tubular extension for sealably engaging an interior surface of the first end portion of the well tubing; and a sleeve carried by the stinger body and shiftable from a retracted position when the tubular extension is inserted into the first end portion of the well tubing, to an extended position covering the seal when the tubular extension is removed from the first end portion of the well tubing. The sleeve is held in position covering and protecting the seal by either a set of spring loaded lugs or a set of shear pins.
    Type: Grant
    Filed: January 30, 1995
    Date of Patent: May 21, 1996
    Assignee: Camco International Inc.
    Inventor: Kenneth McTernaghan