ALEXANDRIA, Va., Nov. 11 -- United States Patent no. 12,467,568, issued on Nov. 11.

"Mechanical fitting for plastic pipe" was invented by Gregory Harlan Goble (Lake Forest, Calif.) and Christopher Michael Hoang (Laguna Hills, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A fitting for a pipe includes a cylindrical sleeve including at least one observation through window, a spigot disposed concentrically within the cylindrical sleeve and having an outer surface sized to fit within a proximal end of the pipe, wherein the cylindrical sleeve is movable with respect to the spigot in a proximal direction to a sealed position and a locking assembly interposed between the cylindrical sleeve and the spigot to...