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:
Mar. 09, 2010
Filed:
Feb. 21, 2008
Percy Norrman, Landskrona, SE;
Bengt-arne Eriksson, Svedala, SE;
Niklas Bennstedt, Svärdsjö, SE;
Rolf Silfver, Beddingestrand, SE;
Percy Norrman, Landskrona, SE;
Bengt-Arne Eriksson, Svedala, SE;
Niklas Bennstedt, Svärdsjö, SE;
Rolf Silfver, Beddingestrand, SE;
Sandvik Intellectual Property AB, Sandviken, SE;
Abstract
A gyratory crusher includes a crushing head on which a first crushing shell is mounted, and a frame on which a second crushing shell is mounted. The second crushing shell defines, together with the first crushing shell, a crushing gap. The gyratory crusher includes a space adapted to hold a liquid. The space is defined by a piston and a cylinder, any one of the piston and the cylinder being formed at least partly of a substantially vertical shaft around which the crushing head is arranged. The space is adapted to form, together with the liquid, a cushion, thereby enabling the cushion to serve as a thrust bearing and transmit vertical forces from the crushing head to the frame.