Patents by Inventor Kari Rikkonen

Kari Rikkonen 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).

  • Driving of rotating crusher elements
    Patent number: 9586209
    Abstract: A mineral material crusher and method of operating a mineral material crusher that includes: a body, a rotating crusher element, a drive shaft arrangement that supports the rotating crusher element to the body and to rotate the rotating crusher element, and a motor including a rotor for driving the drive shaft arrangement. The motor is formed inside the rotating crusher element and the drive shaft arrangement is configured to form of the rotor a rotating axle that is rigidly coupled with the rotating crusher element and capable of leading torque from the rotor to the rotating crusher element for rotating the crusher element around the drive shaft.
    Type: Grant
    Filed: December 17, 2012
    Date of Patent: March 7, 2017
    Assignee: Metso Minerals, Inc.
    Inventors: Kari Rikkonen, Jari Jonkka, Marko Salonen, Risto Sutti, Kari Kuvaja, Petri Kujansuu
  • Frame of jaw crusher, jaw crusher and crushing plant
    Patent number: 9283564
    Abstract: A frame of a jaw crusher comprises a front wall for receiving crushing force and side walls connected to the front wall. The frame of the jaw crusher comprises a front part and a rear part joinable to the front part, and the front part comprises the front wall, and a major part of the front wall and the front part of both side walls form a unitary piece. A jaw crusher and a crushing plant.
    Type: Grant
    Filed: September 28, 2009
    Date of Patent: March 15, 2016
    Assignee: Metso Minerals, Inc.
    Inventors: Risto Sutti, Kari Rikkonen, Ilkka Somero, Juhamatti Heikkila, Jari Jonkka, Mika Yli-Marttila
  • DRIVING OF ROTATING CRUSHER ELEMENTS
    Publication number: 20150001323
    Abstract: A mineral material crusher and method of operating a mineral material crusher that includes: a body, a rotating crusher element, a drive shaft arrangement that supports the rotating crusher element to the body and to rotate the rotating crusher element, and a motor including a rotor for driving the drive shaft arrangement. The motor is formed inside the rotating crusher element and the drive shaft arrangement is configured to form of the rotor a rotating axle that is rigidly coupled with the rotating crusher element and capable of leading torque from the rotor to the rotating crusher element for rotating the crusher element around the drive shaft.
    Type: Application
    Filed: December 17, 2012
    Publication date: January 1, 2015
    Applicant: METSO MINERALS, INC.
    Inventors: Kari Rikkonen, Jari Jonkka, Marko Salonen, Risto Sutti, Kari Kuvaja, Petri Kujansuu
  • FRAME OF JAW CRUSHER, JAW CRUSHER AND CRUSHING PLANT
    Publication number: 20120175447
    Abstract: A frame of a jaw crusher comprises a front wall for receiving crushing force and side walls connected to the front wall. The frame of the jaw crusher comprises a front part and a rear part joinable to the front part, and the front part comprises the front wall, and a major part of the front wall and the front part of both side walls form a unitary piece. A jaw crusher and a crushing plant.
    Type: Application
    Filed: September 28, 2009
    Publication date: July 12, 2012
    Applicant: METSO MINERALS, INC.
    Inventors: Risto Sutti, Kari Rikkonen, Ilkka Somero, Juhamatti Heikkila, Jari Jonkka, Mika Yli-Marttila
  • Hydraulic control system for gyratory crusher provided with safety system for overload conditions
    Patent number: 5725163
    Abstract: A hydraulic control system for a gyratory crusher has a hydraulically supported main shaft. An inlet line to the cylinder is provided with a pressure relief valve. When the pressure in the cylinder, e.g. because of a disturbance, exceeds the opening pressure of the relief valve, fluid flows from the cylinder through the pressure relief valve to the lubricating circuit of the crusher and further to the return line. The safety system of the crusher is simple, reliable, and quick.
    Type: Grant
    Filed: July 9, 1996
    Date of Patent: March 10, 1998
    Assignee: Nordberg-Lokomo OY
    Inventors: Jarmo Eloranta, Kari Rikkonen
  • Tree harvester
    Patent number: D248953
    Type: Grant
    Filed: August 19, 1976
    Date of Patent: August 15, 1978
    Assignee: Rauma-Repola Oy
    Inventors: Olli Aho, Timo Hartman, Jouko Hyytianien, Matti Kaarnametsa, Jukko Moisander, Markku Makela, Kari Rikkonen