Patents Assigned to POLYFLOW, LLC
  • Patent number: 12504105
    Abstract: An end fitting for connecting two sections of pipe to one another can comprise a first tubular member, and a second tubular member disposed coaxially about the first tubular member to delimit an annular gap therebetween for receiving an end portion of a pipe. A sleeve can be disposed coaxially about the first tubular member and within the annular gap such that a pressurised medium is receivable between the sleeve and one of first and second tubular members to move at least a portion of the sleeve radially and thereby clamp the end portion of the pipe between the first and second tubular members when received in the annular gap. The end fitting may have particular application in conveying oil and gas field fluids, including hydrocarbon fluids.
    Type: Grant
    Filed: June 1, 2022
    Date of Patent: December 23, 2025
    Assignee: Polyflow, LLC
    Inventor: Liang Yu
  • Publication number: 20240400771
    Abstract: The present disclosure relates to a composite material for use in a reinforced thermoplastic flexible pipe body, such as a fibre-reinforced composite tape. The present disclosure also relates to a method of producing such a composite material or composite tape, and a method of producing a reinforced thermoplastic flexible pipe comprising said composite material or tape.
    Type: Application
    Filed: June 1, 2023
    Publication date: December 5, 2024
    Applicant: Polyflow, LLC
    Inventors: Malcolm Rosenow, Rafik Boubenider
  • Publication number: 20240209965
    Abstract: There is provided a permeation barrier layer for a reinforced thermoplastic pipe for transportation of oilfield fluids. The permeation barrier layer comprises (i) an external layer comprising a first thermoplastic polymer, (ii) an intermediate layer comprising ethylene vinyl alcohol (EVOH) copolymers, and (iii) an internal layer comprising a polyamide. At least a portion of the intermediate layer is in contact with the external layer and/or the internal layer. There is also provided a reinforced thermoplastic pipe body comprising a permeation barrier layer and at least one reinforcement layer comprising fibres or wires. There is further provided a method for producing a permeation barrier layer for a reinforced thermoplastic pipe for transportation of oilfield fluids and a method for producing a reinforced thermoplastic pipe body.
    Type: Application
    Filed: December 21, 2022
    Publication date: June 27, 2024
    Applicant: Polyflow, LLC
    Inventor: Jean-Louis Poisson
  • Publication number: 20230392729
    Abstract: There is provided an end fitting for connecting two sections of pipe to one another, the end fitting comprising a first tubular member, and a second tubular member disposed coaxially about the first tubular member to delimit an annular gap therebetween for receiving an end portion of a pipe. A sleeve is disposed coaxially about the first tubular member and within the annular gap such that a pressurised medium is receivable between the sleeve and one of first and second tubular members to move at least a portion of the sleeve radially and thereby clamp the end portion of the pipe between the first and second tubular members when received in the annular gap. The end fitting may have particular application in conveying oil and gas field fluids, including hydrocarbon fluids.
    Type: Application
    Filed: June 1, 2022
    Publication date: December 7, 2023
    Applicant: Polyflow, LLC
    Inventor: Liang YU
  • Publication number: 20130160886
    Abstract: A system for monitoring leakage in a pipe system including a pipe, a flexible tube extending through an inside of the pipe, an end fitting assembly connecting each end of the tube to a corresponding end of the pipe which creates an annulus and a monitoring system for detecting leakage from the tube into the annulus. A method for creating multiple flow paths in an existing pipe is also provided.
    Type: Application
    Filed: December 6, 2012
    Publication date: June 27, 2013
    Applicant: POLYFLOW, LLC
    Inventor: POLYFLOW, LLC