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:
Sep. 20, 2011
Filed:
Dec. 18, 2009
Bengt-arne Eriksson, Svedala, SE;
Johan Gunnarsson, Sövde, SE;
Percy Norrman, Höör, SE;
Kjell-åke Svensson, Limhamn, SE;
Bengt-Arne Eriksson, Svedala, SE;
Johan Gunnarsson, Sövde, SE;
Percy Norrman, Höör, SE;
Kjell-Åke Svensson, Limhamn, SE;
Sandvik Intellectual Property AB, Sandviken, SE;
Abstract
A gyratory crusher has a crushing head on which a first crushing shell is mounted, a frame on which a second crushing shell is mounted, and a driving device, which is arranged with a rotating eccentric to cause the crushing head to execute a gyratory movement for crushing of material. The crushing head is connected to the frame of a rotation-restricting arrangement, which comprises a beater in a tank. Spinning of the crushing head is restricted by the beater being braked, during operation of the crusher, by a liquid contained in the tank.