Patents by Inventor Reginald L. Currier

Reginald L. Currier 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).

  • Blowout preventer spanner joint with emergency disconnect capability
    Patent number: 6070668
    Abstract: A spanner joint assembly for connecting between an upper riser and a conventional dual bore tubing hanger in a subsea well. The spanner joint assembly includes upper and lower spanner joint portions connected to each other through an emergency disconnect portion. The upper spanner joint portion has a longitudinal production bore and a longitudinal annulus. The lower spanner joint portion has a longitudinal production bore with a production bore valve and a longitudinal nonconcentric annulus access bore. The emergency disconnect portion includes an upper mandrel connected to the upper spanner joint portion and a lower mandrel connected to the lower spanner joint portion. A releasable mechanical connector includes a retaining groove in the lower mandrel and a collet connected to the upper mandrel. The collet has a latching portion extending beyond the upper mandrel which is adapted to be received in the retaining groove.
    Type: Grant
    Filed: November 7, 1997
    Date of Patent: June 6, 2000
    Assignee: Sonsub Inc.
    Inventors: Williams C. Parks, Walter S. Going, III, Michael W. Spiering, Reginald L. Currier