US Patent Issued to MAICON ENGINEERING on Oct. 14 for "Impact crusher, an upper rotor and a hammer" (Finnish Inventors)

ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,440,851, issued on Oct. 14, was assigned to MAICON ENGINEERING OY (Kauniainen, Finland).

"Impact crusher, an upper rotor and a hammer" was invented by Tapio Korpijaakko (Kuopio, Finland), Marko Reinikainen (Joensuu, Finland) and Teemu Laasonen (Joensuu, Finland).

According to the abstract* released by the U.S. Patent & Trademark Office: "A impact crusher with dual rotors, an upper rotor (30) and a hammer for the impact crusher are disclosed herein. The upper rotor (30) of the impact crusher comprises two discs on top of each other. The upper rotor (30) comprises a plurality of hammers (40) pointing down, to the outer perimeter of the lower rotor (20) discharging the material to be cr...