ALEXANDRIA, Va., April 21 -- United States Patent no. 12,607,281, issued on April 21.
"Pipe coupling" was invented by Jaron Lyell Mcmillan (Christchurch, New Zealand).
According to the abstract* released by the U.S. Patent & Trademark Office: "Pipe coupling: a male portion (13) provided with a series of spaced keys (15); a female portion (14) provided with a series of spaced keyways (16) so the keys are a sliding fit; a fastener including a male portion fitting (17) secured to or formed in the male portion (13) and providing at least one internally screw-threaded bore (17b); a female portion socket attached to or formed in the female portion, said female portion socket (18a) including a central aperture (23) shaped to receive a plug (24),...