Patents by Inventor Kwami ROBERTS

Kwami ROBERTS 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).

  • Publication number: 20250179889
    Abstract: The apparatus for anchoring a downhole tool to a casing includes a spiral threaded engagement and a raised spiral threaded engagement between a slip device and first and second cones. The first cone is moved closer to the second cone within the slip device to expand the slip device from an initial diameter in a run-in configuration to an extended diameter in a set configuration. The initial diameter corresponds to the spiral threaded engagement, and the extended diameter corresponds to the raised spiral threaded engagement. The spiral threaded engagement of the first cone is in the opposite spiral direction to the spiral threaded engagement of the second cone. There are multiple locking systems incorporated to prevent premature expansion and reverse rotating the cones from the slip device. The invention includes both the method of assembling the apparatus and the method of using the apparatus to anchor to a casing.
    Type: Application
    Filed: November 30, 2023
    Publication date: June 5, 2025
    Inventors: Damon NETTLES, Kwami ROBERTS, Tito ZABALA, David ALGIEN, Perry BATSON, Jianpeng YUE, Peng CHENG
  • Publication number: 20240287869
    Abstract: A ramp type frac plug device of the present invention is a simplified, short and compact frac plug device to both maintain seal to the borehole wall and prevent premature release from the borehole. The frac plug device includes a cone, an anchor assembly, a cap member, a slip device, and a sealing member. In a set configuration, the frac plug device has both the friction fit engagement of the cone and the slip device and a single direction rachet locked engagement of an anchor ring with a threaded ring portion and an anchor mandrel with an exterior threaded mandrel portion of the anchor assembly. The ratchet lock engagement between the anchor ring and the anchor mandrel prevents backward movement of the cone away from the anchor mandrel so that the cap member engaged with the anchor mandrel locks the slip device in position on the cone.
    Type: Application
    Filed: February 24, 2023
    Publication date: August 29, 2024
    Inventors: Min Mark YUAN, Matthew PATSY, Jianpeng YUE, Peng CHENG, Kwami ROBERTS
  • Publication number: 20240287867
    Abstract: A ramp type frac plug device of the present invention is a simplified, short and compact frac plug device to both maintain seal to the borehole wall and prevent premature release from the borehole. The frac plug device includes a cone, an anchor mandrel, a cap member, a slip device, and a sealing member. In a set configuration, the frac plug device has both the friction fit engagement of the cone and the slip device and a single direction rachet locked engagement of the cone and an anchor mandrel. The cone has a threaded cone portion, and the anchor mandrel has an exterior threaded mandrel portion. The ratchet lock engagement between the cone and the anchor mandrel prevents backward movement of the cone away from the anchor mandrel so that the cap member engaged with the anchor mandrel locks the slip device in position on the cone.
    Type: Application
    Filed: February 24, 2023
    Publication date: August 29, 2024
    Inventors: Matthew PATSY, Min Mark YUAN, Jianpeng YUE, Peng CHENG, Kwami ROBERTS, Damon NETTLES
  • Publication number: 20240229595
    Abstract: The packer system includes a packer mandrel, an upper support or gage ring, a seal member, an upper slip device, an upper cone, a lower cone, a lower slip device, a setting sleeve, and a setting piston. The seal member has a run-in position and a set position. The set position seals against a borehole at a location in a borehole. The setting sleeve has a bypass position to transfer load of the setting piston away from the lower slip device and to the lower cone, the seal member, and the upper cone to set the seal member and upper slip device before the lower slip device. The setting sleeve has a released position to separate from the setting piston so that the load of the setting piston can finally be applied on the lower slip device for expansion of the lower slip device at the proper time and location.
    Type: Application
    Filed: October 25, 2022
    Publication date: July 11, 2024
    Inventors: Kwami ROBERTS, Jeff MAYNARD, Jianpeng YUE, Peng CHENG, Damon NETTLES, Perry BATSON
  • Publication number: 20240133263
    Abstract: The packer system includes a packer mandrel, an upper support or gage ring, a seal member, an upper slip device, an upper cone, a lower cone, a lower slip device, a setting sleeve, and a setting piston. The seal member has a run-in position and a set position. The set position seals against a borehole at a location in a borehole. The setting sleeve has a bypass position to transfer load of the setting piston away from the lower slip device and to the lower cone, the seal member, and the upper cone to set the seal member and upper slip device before the lower slip device. The setting sleeve has a released position to separate from the setting piston so that the load of the setting piston can finally be applied on the lower slip device for expansion of the lower slip device at the proper time and location.
    Type: Application
    Filed: October 24, 2022
    Publication date: April 25, 2024
    Inventors: Kwami ROBERTS, Jeff MAYNARD, Jianpeng YUE, Peng CHENG, Damon NETTLES, Perry BATSON
  • Publication number: 20220106855
    Abstract: The retrievable packer system includes a packer mandrel, a lock ring, an upper cone, a lower cone, a slip device, a retrieval mandrel, and a plurality of push rods. The lock ring is attached to the packer mandrel, followed by the upper cone, the slip device, the lower cone, and the retrieval mandrel. The lower cone has lower cone rod channels, and the push rods anchored on the retrieval mandrel slide through respective channels toward the upper cone. The packer system is run into the borehole with each rod in the first position relative to a tip end of the lower cone and the slip device in the run-in position. The packer system is set and can be locked at a location in the borehole. Each push rod can push the upper cone to return the slip device to the run-in position for retrieval of the packer system.
    Type: Application
    Filed: October 7, 2020
    Publication date: April 7, 2022
    Inventors: Perry BATSON, Jeff MAYNARD, Kwami ROBERTS, Israel TORRES, Jianpeng YUE, Shaogong ZHU, Meng CAI, Yongquan XU