US Patent 11499653 Methods and apparatus for pulling flexible pipe

A pull head assembly for quick attachment to a flexible pipe is provided. The pull head assembly has three subsections. A collet assembly is mounted to the end of a flexible pipe. A mandrel assembly is adapted to go over the collet assembly. A lead screw assembly positions the mandrel assembly over the collet assembly and acts as an attachment point for pulling the flexible pipe and pull head assembly from one location to another. After pulling the flexible pipe and pull head assembly from one location to another, the mandrel assembly and lead screw assembly can be removed, and the collet assembly can act as a temporary fitting for the flexible pipe.