Patents by Inventor Jack P. Chance

Jack P. Chance 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).

  • Wellbore directional steering tool
    Patent number: 6808027
    Abstract: An apparatus for selectively controlling the direction of a well bore comprising a mandrel rotatable about a rotation axis; a direction controller means comprising at least two parts configured to apply a force to said mandrel with a component perpendicular to the said rotation axis; a housing having an eccentric longitudinal bore forming a weighted side and being configured to freely rotate under gravity; and a driver for selectively varying the angle of the force relative to the weighted side of the housing about said rotation axis, the driver being configured to move the two parts independently of one another.
    Type: Grant
    Filed: June 11, 2001
    Date of Patent: October 26, 2004
    Assignee: RST (BVI), Inc.
    Inventors: Stephen John McLoughlin, Jeffrey B. Lasater, Jack P. Chance, George B. Sutherland, Feroze M. Variava, Emerson Marcellus
  • Wellbore directional steering tool
    Publication number: 20020185315
    Abstract: An apparatus for selectively controlling the direction of a well bore comprising a mandrel rotatable about a rotation axis; a direction controller means comprising at least two parts configured to apply a force to said mandrel with a component perpendicular to the said rotation axis; a housing having an eccentric longitudinal bore forming a weighted side and being configured to freely rotate under gravity; and a driver for selectively varying the angle of the force relative to the weighted side of the housing about said rotation axis, the driver being configured to move the two parts independently of one another.
    Type: Application
    Filed: June 11, 2001
    Publication date: December 12, 2002
    Inventors: Stephen John McLoughlin, Jeffrey B. Lasater, Jack P. Chance, George B. Sutherland, Feroze M. Variava, Emerson Marcellus