Patents by Inventor Christy L. Petter

Christy L. Petter 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).

  • Torque-provider
    Patent number: 9903174
    Abstract: An assembly for providing torque to an object in a wellhead. The assembly includes a body attachable to the wellhead and including a bore with a centerline. The body further includes a first set of pistons within cylinders oriented at angles offset from and perpendicular to the centerline of the bore. The pistons are moveable within the cylinders between a retracted position and an extended position where the pistons are extended into the body bore. The movement of the pistons between the retracted and extended positions imparts a linear force capable of rotating the object in the wellhead in a first direction.
    Type: Grant
    Filed: March 18, 2009
    Date of Patent: February 27, 2018
    Assignee: Cameron International Corporation
    Inventors: Dennis P. Nguyen, Christy L. Petter
  • Torque-Provider
    Publication number: 20100326674
    Abstract: An assembly for providing torque to an object in a wellhead. The assembly includes a body attachable to the wellhead and including a bore with a centerline. The body further includes a first set of pistons within cylinders oriented at angles offset from and perpendicular to the centerline of the bore. The pistons are moveable within the cylinders between a retracted position and an extended position where the pistons are extended into the body bore. The movement of the pistons between the retracted and extended positions imparts a linear force capable of rotating the object in the wellhead in a first direction.
    Type: Application
    Filed: March 18, 2009
    Publication date: December 30, 2010
    Applicant: CAMERON INTERNATIONAL CORPORATION
    Inventors: Dennis P. Nguyen, Christy L. Petter