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:
Oct. 25, 1988
Filed:
Sep. 10, 1984
Carl R Graf, Whitehall, PA (US);
Fuller Company, Bethlehem, PA (US);
Abstract
A gyratory crusher of the type including a frame with a bowl mounted on the frame and a head cooperable with the bowl in crushing operations. The head is rotatably mounted on an eccentric which is driven through suitable gearing. The head is positively rotated by a drive means either independent of or integral with the drive for the eccentric. The bowl is free to rotate about the frame. The rotary motion imparted to the head serves to induce centrifugal force to the particles of material within the crushing chamber. This centrifugal force, when combined with the gravitational force acting on the particles of material, results in the material moving through the crushing chamber in a trajectory which follows the configuration of the crushing chamber.