The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 12, 2025
Filed:
Oct. 01, 2020
Sandvik Srp Ab, Svedala, SE;
Jan Johansson, Svedala, SE;
Johan Gunnarsson, Svedala, SE;
Sandvik SRP AB, Svedala, SE;
Abstract
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 having the smallest diameter of the bushing. An angle (α) defines the inside surface inclination above/below the fulcrum point in relation to the longitudinal axis. An inside length of the body is defined from the fulcrum point to the top end of the collar. A plurality of longitudinal cutouts are located at the inside of the body and are partly recessed in the inside surface. The cutouts have a length of which the lowermost part is located at or above the region of the fulcrum point.