ALEXANDRIA, Va., Aug. 20 -- United States Patent no. 12,392,435, issued on Aug. 19.
"Toolless disassembly rotational vacuum coupling" was invented by Clay Owens (Springdale, Ark.), Alan Davison (Springdale, Ark.) and Chris Clouse (Fayetteville, Ark.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A hand disassembly rotational valve coupling for tool less manipulation by a user's hands and fingers using a coupling housing body defining an output seal aperture close to an output handle retention slot and slot lip, where the slot lip has a slot handle gap and an output seal retainer including a coupling handle ring with a first triangulated offset body retention ears and hand graspable handles separated by a rin...