ALEXANDRIA, Va., Nov. 18 -- United States Patent no. 12,474,235, issued on Nov. 18, was assigned to Petroleo Brasileiro S.A.-Petrobras (Rio de Janeiro, Brazil).
"Method and device for sampling pressure barrier of flexible pipes" was invented by Henri Fiorenza De Lima (Vitoria, Brazil).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention proposes a split clamp (7), typical of trepanning operations in pipes, which allows the intervention with a tool (3) that makes a circular hole in the pipe (1) under analysis, removing layer by layer, until reaching the pressure barrier (2). With this, a sample of the layer of interest is removed to be forwarded for analysis. Such a clamp (7) has means to isola...