ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,383,908, issued on Aug. 12, was assigned to Sandvik SRP AB (Svedala, Sweden).
"Gyratory crusher spider bushing" was invented by Jan Johansson (Svedala, Sweden) and Johan Gunnarsson (Svedala, Sweden).
According to the abstract* released by the U.S. Patent & Trademark Office: "A gyratory crusher spider bushing positions radially intermediate thereof a topshell spider and a crusher main shaft configured for gyroscopic precession within a crusher. The bushing includes a cylindrical main body having an inside surface and an outside surface centered around a longitudinal axis. A collar is arranged in connection to the top end of the bushing. The inside surface includes a fulcrum point havi...