Patents by Inventor Janne Keskinen

Janne Keskinen 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).

  • METHOD FOR SECURING A DIE PLATE OF A JAW CRUSHER, AND A JAW CRUSHER
    Publication number: 20130233956
    Abstract: A method for mounting a jaw die plate of a jaw crusher detachably against a front end wall of the crusher by means of a fastening device operated from outside a side wall of the crusher. The die plate is secured in its place by means of friction between the fastening device and a counter surface of the front end wall and friction between the fastening device and a counter surface of the die plate. The fastening device of the jaw crusher includes a wedge piece having a first pressing surface to be fitted against the counter surface of the die plate secured against the front end of the crusher, and, in addition to that, a second pressing surface to be fitted against the counter surface of the front end wall. The wedge piece is movable towards both counter surfaces and away from the same by means of the tightening means.
    Type: Application
    Filed: April 17, 2013
    Publication date: September 12, 2013
    Applicant: Metso Minerals, Inc.
    Inventors: Harri LEHTONEN, Janne Keskinen
  • Method for securing a die plate of a jaw crusher, and a jaw crusher
    Publication number: 20050173574
    Abstract: A method for mounting a jaw die plate of a jaw crusher detachably against a front end wall of the crusher by means of a fastening device operated from outside a side wall of the crusher. The die plate is secured in its place by means of friction between the fastening device and a counter surface of the front end wall and friction between the fastening device and a counter surface of the die plate. The fastening device of the jaw crusher includes a wedge piece having a first pressing surface to be fitted against the counter surface of the die plate secured against the front end of the crusher, and, in addition to that, a second pressing surface to be fitted against the counter surface of the front end wall. The wedge piece is movable towards both counter surfaces and away from the same by means of the tightening means.
    Type: Application
    Filed: September 25, 2003
    Publication date: August 11, 2005
    Applicant: Metso Minerals (Tampere) OY
    Inventors: Harri Lehtonen, Janne Keskinen
  • Method for securing a die plate of a jaw crusher, and a jaw crusher
    Patent number: 6402072
    Abstract: A method for mounting a jaw die plate (9) of a jaw crusher detachably against a front end wall (10) of the crusher by means of a fastening device (18) operated from outside a side wall (7) of the crusher. The die plate (9) is secured in its place by means of friction between the fastening device (18) and a counter surface (22) of the front end wall (10) and friction between the fastening device (18) and a counter surface (23) of the die plate. The fastening device of the jaw crusher includes a wedge piece (18) having a first pressing surface to be fitted against the counter surface (23) of the die plate (9) secured against the front end (10) of the crusher, and, in addition to that, a second pressing surface to be fitted against the counter surface (22) of the front end wall. The wedge piece (18) is movable towards both counter surfaces (23, 22) and away from the same by means of the tightening means (19, 24, 20).
    Type: Grant
    Filed: June 16, 2000
    Date of Patent: June 11, 2002
    Assignee: Metso Minerals (Tampere) Oy
    Inventors: Harri Lehtonen, Janne Keskinen
  • Method for securing a die plate of a jaw crusher, and a jaw crusher
    Publication number: 20020038833
    Abstract: A method for mounting a jaw die plate (9) of a jaw crusher detachably against a front end wall (10) of the crusher by means of a fastening device (18) operated from outside a side wall (7) of the crusher. The die plate (9) is secured in its place by means of friction between the fastening device (18) and a counter surface (22) of the front end wall (10) and friction between the fastening device (18) and a counter surface (23) of the die plate. The fastening device of the jaw crusher includes a wedge piece (18) having a first pressing surface to be fitted against the counter surface (23) of the die plate (9) secured against the front end (10) of the crusher, and, in addition to that, a second pressing surface to be fitted against the counter surface (22) of the front end wall. The wedge piece (18) is movable towards both counter surfaces (23, 22) and away from the same by means of the tightening means (19, 24, 20).
    Type: Application
    Filed: December 5, 2001
    Publication date: April 4, 2002
    Inventors: Harri Lehtonen, Janne Keskinen