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. 31, 2020
Filed:
Jun. 29, 2012
Marko Salonen, Tampere, FI;
Marko Salonen, Tampere, FI;
METSO MINERALS, INC., Helsinki, FI;
Abstract
An apparatus including a rotor position detection unit with a sensor configured to detect an angular position of a rotor of a horizontal shaft impact crusher, the rotor having attached thereon a group of hammers. A motor control system is configured to change the rotation speed of the rotor and an automation and control system is configured to control the motor control system in response to the detected angular position of the rotor. The rotor position detection unit is configured to detect a first and second angular position of the rotor corresponding to a first and second position of a hammer of the group of hammers attached to the rotor. The motor control system comprises a frequency converter and a brake configured to enable the stopping of the rotor.