Patents by Inventor Pandeeswaran Krishnasamy

Pandeeswaran Krishnasamy 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).

  • Patent number: 11795770
    Abstract: A tool trap system includes a housing defining a bore, a shaft coupled to the housing, and a flapper and an actuation system coupled to the shaft. The flapper selectively obstructs the bore through the housing. The actuation system includes a lever coupled to and configured to rotate the shaft, a cylinder configured to contact the lever, a hydraulic cylinder, and a piston rod extending through the cylinder and the hydraulic cylinder. The cylinder is configured to move axially along a longitudinal axis of the cylinder to rotate the lever. In response to manual actuation of the tool trap system, the hydraulic cylinder remains in place as the cylinder moves axially. In response to powered actuation of the tool trap system, a fluid pumped into the hydraulic cylinder axially moves the hydraulic cylinder, and the piston rod remains in place as the cylinder moves axially.
    Type: Grant
    Filed: December 21, 2022
    Date of Patent: October 24, 2023
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Pandeeswaran Krishnasamy, Prabhu Jagadesan, Meshach Samuel Raj R
  • Publication number: 20230131092
    Abstract: A tool trap system includes a housing defining a bore, a shaft coupled to the housing, and a flapper and an actuation system coupled to the shaft. The flapper selectively obstructs the bore through the housing. The actuation system includes a lever coupled to and configured to rotate the shaft, a cylinder configured to contact the lever, a hydraulic cylinder, and a piston rod extending through the cylinder and the hydraulic cylinder. The cylinder is configured to move axially along a longitudinal axis of the cylinder to rotate the lever. In response to manual actuation of the tool trap system, the hydraulic cylinder remains in place as the cylinder moves axially. In response to powered actuation of the tool trap system, a fluid pumped into the hydraulic cylinder axially moves the hydraulic cylinder, and the piston rod remains in place as the cylinder moves axially.
    Type: Application
    Filed: December 21, 2022
    Publication date: April 27, 2023
    Inventors: Pandeeswaran Krishnasamy, Prabhu Jagadesan, Meshach Samuel Raj R
  • Patent number: 11536100
    Abstract: A tool trap system that includes a housing. The housing defines a bore. A shaft couples to the housing. A flapper couples to the shaft. The flapper rotates with the shaft between an open position and a closed position to control movement of a wireline tool through the bore. An actuation system couples to the shaft. The actuation system rotates the shaft. The actuation system includes a lever that couples to and rotates the shaft. A cylinder contacts the lever. The cylinder moves axially along a longitudinal axis of the cylinder to rotate the lever.
    Type: Grant
    Filed: August 20, 2020
    Date of Patent: December 27, 2022
    Assignee: Schlumberger Technology Corporation
    Inventors: Pandeeswaran Krishnasamy, Prabhu Jagadesan, Meshach Samuel Raj R
  • Publication number: 20210087893
    Abstract: A tool trap system that includes a housing. The housing defines a bore. A shaft couples to the housing. A flapper couples to the shaft. The flapper rotates with the shaft between an open position and a closed position to control movement of a wireline tool through the bore. An actuation system couples to the shaft. The actuation system rotates the shaft. The actuation system includes a lever that couples to and rotates the shaft. A cylinder contacts the lever. The cylinder moves axially along a longitudinal axis of the cylinder to rotate the lever.
    Type: Application
    Filed: August 20, 2020
    Publication date: March 25, 2021
    Inventors: Pandeeswaran Krishnasamy, Prabhu Jagadesan, Meshach Samuel Raj R