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:
Jan. 03, 2006
Filed:
Dec. 18, 2002
Thomas G. Braun, Muskego, WI (US);
Dean M. Kaja, Germantown, WI (US);
Mark K. Torbett, Big Bend, WI (US);
Thomas G. Braun, Muskego, WI (US);
Dean M. Kaja, Germantown, WI (US);
Mark K. Torbett, Big Bend, WI (US);
Metso Minerals Industries, Inc., Milwaukee, WI (US);
Abstract
A rock crusher includes a bowl coupled to a frame and a head assembly coupled to the frame defining a crushing gap between the head assembly and the bowl. The rock crusher further includes a number of fixed displacement hydraulic motors adapted to rotate the bowl with respect to the frame and a hydraulic fluid source providing a flow rate of hydraulic fluid to the hydraulic motors. A hydraulic control valve is adapted to remove one of the hydraulic motors from operation, directing the hydraulic fluid to the remaining hydraulic motors. The flow rate of hydraulic fluid remains unchanged, thereby increasing the hydraulic fluid flow rate provided to and the speed of the remaining hydraulic motors.