ALEXANDRIA, Va., April 7 -- United States Patent no. 12,595,865, issued on April 7, was assigned to VICTAULIC COMPANY (Easton, Pa.).
"Coupling and circumferential groove shape" was invented by Justin P Brandt (Flemington, N.J.), Anthony J Cuvo (Coopersburg, Pa.) and Philip W Bancroft (Belvidere, N.J.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Pipe elements have circumferential grooves. The grooves have a first side surface contiguous with a first floor surface. The first side surface and the first floor surface together subtend a first 90deg circular arc when viewed in cross section. The grooves also have a second side surface contiguous with a second floor surface. The second side surface is in spaced r...