Patents by Inventor David C. Allensworth

David C. Allensworth 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).

  • Telescoping orientation joint
    Patent number: 8720578
    Abstract: An orientation joint for a subsea landing string equipped to maintain both unitary and telescoping configurations. For example, the joint may maintain a unitary configuration to provide continuous orientation definition while lowering a landing string within a blowout preventer (BOP). Additionally, the orientation joint may be configured to telescope and provide an appropriately sized uniform outer diameter surface to enable a sealing engagement with an aligned ram of the BOP.
    Type: Grant
    Filed: May 11, 2011
    Date of Patent: May 13, 2014
    Assignee: Schlumberger Technology Corporation
    Inventors: David C. Allensworth, Josh Rayner
  • TELESCOPING ORIENTATION JOINT
    Publication number: 20110278013
    Abstract: An orientation joint for a subsea landing string equipped to maintain both unitary and telescoping configurations. For example, the joint may maintain a unitary configuration to provide continuous orientation definition while lowering a landing string within a blowout preventer (BOP). Additionally, the orientation joint may be configured to telescope and provide an appropriately sized uniform outer diameter surface to enable a sealing engagement with an aligned ram of the BOP.
    Type: Application
    Filed: May 11, 2011
    Publication date: November 17, 2011
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: David C. Allensworth, Josh Rayner