ALEXANDRIA, Va., July 15 -- United States Patent no. 12,663,033, issued on June 23, was assigned to AKTIEBOLAGET SKF (Gothenburg, Sweden).
"Hydraulic coupling device" was invented by Nicklas Fjellet (Hofors, Sweden), Mikael Eklof (Gavle, Sweden) and Ingemar Gustafsson (Forsbacka, Sweden).
According to the abstract* released by the U.S. Patent & Trademark Office: "A hydraulic coupling device includes an inner sleeve having a tapered outer surface, an outer sleeve having a tapered inner surface mounted on the tapered outer surface of the inner sleeve, a nut screwed onto the inner sleeve, and a cylinder formed separately from the outer sleeve and secured to the outer sleeve. The cylinder abuts axially against the outer sleeve to form a joint...