Patents by Inventor Karidja Louise-Olivia Djibo

Karidja Louise-Olivia Djibo 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).

  • Rotary check valve
    Patent number: 9915354
    Abstract: A rotary check valve is disclosed having sealing surfaces between two sealing members that engage with a rotating shearing motion. The rotating shearing motion may shear debris between the sealing members and minimize or eliminate blockage of fluid passageways in the sealing members. In a closed position, the upper sealing member and lower sealing member are rotated such that fluid passageways in the upper sealing member and fluid passageways in the lower sealing member are not aligned and blocked by the sealing surfaces. The sealing members of the rotary check valve may be biased to a closed position via a spring.
    Type: Grant
    Filed: December 19, 2014
    Date of Patent: March 13, 2018
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Robert Kelly, Karidja Louise-Olivia Djibo, Kent D. Harms, Walter Luckett
  • Rotary Check Valve
    Publication number: 20160177664
    Abstract: A rotary check valve is disclosed having sealing surfaces between two sealing members that engage with a rotating shearing motion. The rotating shearing motion may shear debris between the sealing members and minimize or eliminate blockage of fluid passageways in the sealing members. In a closed position, the upper sealing member and lower sealing member are rotated such that fluid passageways in the upper sealing member and fluid passageways in the lower sealing member are not aligned and blocked by the sealing surfaces. The sealing members of the rotary check valve may be biased to a closed position via a spring.
    Type: Application
    Filed: December 19, 2014
    Publication date: June 23, 2016
    Inventors: Robert Kelly, Karidja Louise-Olivia Djibo, Kent D. Harms, Walter Luckett