Patents by Inventor Michael Saarnack

Michael Saarnack has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Central shaft for a gyratory crusher
    Patent number: 8066210
    Abstract: A central shaft for a gyratory crusher, which includes a crushing head on which a first crushing shell is mounted; a frame on which a second crushing shell is mounted, which second crushing shell defines, together with the first crushing shell, a crushing gap; and a driving device, which is arranged to rotate an eccentric about said central shaft and thereby to cause the crushing head to execute a gyratory movement for crushing of material that is introduced in the crushing gap. The central shaft has a cavity in which are accommodated an anti-reverse and a torque limiter, the anti-reverse and the torque limiter being adapted for connection to said crushing head for restricting spinning.
    Type: Grant
    Filed: December 14, 2009
    Date of Patent: November 29, 2011
    Assignee: Sandvik Intellectual Property AB
    Inventors: Bengt-Arne Eriksson, Michael Saarnack
  • Central shaft for a gyratory crusher
    Publication number: 20100155518
    Abstract: A central shaft for a gyratory crusher, which includes a crushing head on which a first crushing shell is mounted; a frame on which a second crushing shell is mounted, which second crushing shell defines, together with the first crushing shell, a crushing gap; and a driving device, which is arranged to rotate an eccentric about said central shaft and thereby to cause the crushing head to execute a gyratory movement for crushing of material that is introduced in the crushing gap. The central shaft has a cavity in which are accommodated an anti-reverse and a torque limiter, the anti-reverse and the torque limiter being adapted for connection to said crushing head for restricting spinning.
    Type: Application
    Filed: December 14, 2009
    Publication date: June 24, 2010
    Inventors: Bengt-Arne Eriksson, Michael Saarnack