ALEXANDRIA, Va., June 25 -- United States Patent no. 12,338,855, issued on June 24, was assigned to CROMPTON TECHNOLOGY GROUP LTD. (Solihull, Great Britain).
"Composite end connections" was invented by James William Bernard (Brackley, Great Britain), Jon Pethick (Leicestershire, Great Britain) and Robert Edwin Finney (Charlbury, Great Britain).
According to the abstract* released by the U.S. Patent & Trademark Office: "A fiber-reinforced polymer composite shaft for transmitting loads along a central axis. The composite shaft comprises a first interface surface extending along the central axis and comprising at least one helical groove and/or a plurality of circumferential grooves for engaging with at least one corresponding helical ridge ...