Patents by Inventor Perrin S. Rodriguez

Perrin S. Rodriguez 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).

  • Subsea stack alignment method
    Patent number: 8122964
    Abstract: A method to interchangeably connect a plurality of Lower Marine Riser Packages with a lower BOP stack includes engaging a Lower Marine Riser Package connector of the Lower Marine Riser Package, with a Lower Stack mandrel connector of a Lower Stack, thereby aligning the Lower Marine Riser Package and the Lower Stack axially about a vertical axis, engaging at least one ring alignment pin of the Lower Marine Riser Package with at least one alignment plate of the Lower Stack, thereby rotationally aligning the Lower Marine Riser Package and the Lower Stack within a specified angle about the vertical axis, and engaging feed-thru connections between the Lower Marine Riser Package and the Lower Stack.
    Type: Grant
    Filed: May 29, 2008
    Date of Patent: February 28, 2012
    Assignee: Hydril USA Manufacturing LLC
    Inventors: Robert Arnold Judge, Perrin S. Rodriguez
  • SUBSEA STACK ALIGNMENT METHOD
    Publication number: 20090294129
    Abstract: A method to interchangeably connect a plurality of Lower Marine Riser Packages with a lower BOP stack includes engaging a Lower Marine Riser Package connector of the Lower Marine Riser Package, with a Lower Stack mandrel connector of a Lower Stack, thereby aligning the Lower Marine Riser Package and the Lower Stack axially about a vertical axis, engaging at least one ring alignment pin of the Lower Marine Riser Package with at least one alignment plate of the Lower Stack, thereby rotationally aligning the Lower Marine Riser Package and the Lower Stack within a specified angle about the vertical axis, and engaging feed-thru connections between the Lower Marine Riser Package and the Lower Stack.
    Type: Application
    Filed: May 29, 2008
    Publication date: December 3, 2009
    Inventors: Robert Arnold Judge, Perrin S. Rodriguez