ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,523,563, issued on Jan. 13.
"Plugs for anchoring within equipment and methods of use for pressure testing" was invented by John C. Lausch (Santa Fe, Texas).
According to the abstract* released by the U.S. Patent & Trademark Office: "A plug for isolating and pressure testing a hollow piece of equipment (e.g., a container or tubular) comprises a compression nut, a semi-conical mandrel shaft (which may be one or two pieces), and a compression member. The compression nut and the semi-conical mandrel shaft are threaded together, directly or indirectly via a spacer and plug body, such that the rotation of the compression nut forces the mandrel shaft through the compression member, and the ...