Patents by Inventor Mika Olkkonen

Mika Olkkonen 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).

  • Patent number: 10968924
    Abstract: A fluid valve assembly having a central bore and a stem axially-movable within the central bore and actuated by an axial pilot force and an axial counter force. An inner supply pressure chamber is provided to retain a stabilized supply pressure providing the axial counter force affecting on the stem. A seal member is arranged coaxially with the stem between the inner supply pressure chamber and an outer supply pressure chamber which is connected to a supply pressure input line. A metering edge is arranged coaxially with the stem to control fluid flow from the outer supply pressure chamber to an actuator chamber. Means are provided to stabilize the supply pressure in the inner chamber against sudden pressure drops in the outer supply pressure chamber.
    Type: Grant
    Filed: March 29, 2017
    Date of Patent: April 6, 2021
    Assignee: NELES FINLAND OY
    Inventors: Jan Gunell, Mika Olkkonen, Juuso Jokinen, Joni Kukkonen, Jyri Hakola
  • Publication number: 20190271334
    Abstract: A fluid valve assembly having a central bore and a stem axially-movable within the central bore and actuated by an axial pilot force and an axial counter force. An inner supply pressure chamber is provided to retain a stabilized supply pressure providing the axial counter force affecting on the stem. A seal member is arranged coaxially with the stem between the inner supply pressure chamber and an outer supply pressure chamber which is connected to a supply pressure input line. A metering edge is arranged coaxially with the stem to control fluid flow from the outer supply pressure chamber to an actuator chamber. Means are provided to stabilize the supply pressure in the inner chamber against sudden pressure drops in the outer supply pressure chamber.
    Type: Application
    Filed: March 29, 2017
    Publication date: September 5, 2019
    Applicant: METSO FLOW CONTROL OY
    Inventors: Jan GUNELL, Mika OLKKONEN, Juuso JOKINEN, Joni KUKKONEN, Jyri HAKOLA
  • Patent number: 9688511
    Abstract: The invention relates to a brake and to a method for controlling the brake. The brake comprises a base part, a braking piece movably supported on the base part, which braking piece is configured to be moved between a braking position and a releasing position, a spring, with the spring force of which the braking piece can be dropped into a braking position, a support member for limiting the initial position of the drop-out movement of the braking piece and also a controllable actuator, which is mechanically connected to the aforementioned support member and configured to displace the initial position of the drop-out movement of the braking piece with respect to the braking position.
    Type: Grant
    Filed: January 26, 2015
    Date of Patent: June 27, 2017
    Assignee: KONE CORPORATION
    Inventors: Mika Olkkonen, Petri Alkula, Raimo Pelto-Huikko
  • Patent number: 9638272
    Abstract: The invention relates to an electromagnetic brake and a method for making an electomagnetic brake. The electromagnetic brake comprises a frame part, an armature part movably mounted on the frame part and having a magnetic core, one or more spring elements for activating the brake by moving the said armature part forwards, an electromagnet fitted to the frame part and arranged to release the brake by pulling the said armature part backwards by resisting the said one or more spring elements, and a planar, elastically bendable damping plate fitted to be bent when the armature part is moving and, while being bent, to produce a damping force resisting the bending to dampen brake noise.
    Type: Grant
    Filed: October 25, 2013
    Date of Patent: May 2, 2017
    Assignee: Kone Corporation
    Inventors: Mika Olkkonen, Antti Saarelainen
  • Patent number: 9341219
    Abstract: A mechanical fixing interface for fixing a machinery brake in a hoisting machine, a machinery brake, and a method for installing the machinery brake are disclosed. The fixing interface is formed in the frame part of the hoisting machine. The fixing interface includes two fixing surfaces for receiving the fixing lugs of the machinery brake, and between the fixing surfaces is a space for the machinery brake.
    Type: Grant
    Filed: July 19, 2013
    Date of Patent: May 17, 2016
    Assignee: KONE CORPORATION
    Inventors: Janne Rahunen, Petri Alkula, Mika Virnes, Mika Olkkonen
  • Patent number: 9145936
    Abstract: The invention relates to a method and an arrangement for adjusting a brake. The arrangement comprises: a frame part of the brake; a counterpart to be pressed against the frame part; an elastic damping member for damping the noise of the brake, which damping member is configured to form a damping force resisting contact between the countersurfaces of the frame part and of the counterpart, said damping force increasing when the distance between the countersurfaces decreases; and also an adjustment means, for adjusting the damping force formed by the damping member and resisting contact between the countersurfaces of the frame part and of the counterpart.
    Type: Grant
    Filed: November 22, 2013
    Date of Patent: September 29, 2015
    Assignee: Kone Corporation
    Inventors: Mika Olkkonen, Antti Saarelainen
  • Publication number: 20150129365
    Abstract: The invention relates to a brake and to a method for controlling the brake. The brake comprises a base part, a braking piece movably supported on the base part, which braking piece is configured to be moved between a braking position and a releasing position, a spring, with the spring force of which the braking piece can be dropped into a braking position, a support member for limiting the initial position of the drop-out movement of the braking piece and also a controllable actuator, which is mechanically connected to the aforementioned support member and configured to displace the initial position of the drop-out movement of the braking piece with respect to the braking position.
    Type: Application
    Filed: January 26, 2015
    Publication date: May 14, 2015
    Applicant: KONE Corporation
    Inventors: Mika OLKKONEN, Petri ALKULA, Raimo PELTO-HUIKKO
  • Publication number: 20150114762
    Abstract: A damping arrangement for damping the opening noise between the frame part and armature part of a machinery brake of an elevator hoisting machine, the machinery brake being opened with an electromagnet, includes a number of channels machined around a magnetizing coil in the frame part of the machinery brake and channels corresponding to them machined in the armature part, into which channels at least one damping element is fixed by means of fixings. The machinery brake of an elevator hoisting machine includes a frame part, an armature part that is movable with respect to the frame part and is installed at the end of the air gap from the frame part, the armature part being moved by means of an electromagnet that is in the frame part towards the frame part for opening the machinery brake and by means of one or more work springs acting between the frame part and the armature part for closing the machinery brake, and a damping arrangement for damping the opening noise between the frame part and armature part.
    Type: Application
    Filed: October 28, 2014
    Publication date: April 30, 2015
    Applicant: KONE CORPORATION
    Inventors: Mika Olkkonen, Antti Saarelainen
  • Patent number: 8727075
    Abstract: An arrangement and a method for supervising the operation of a brake includes a controllable electromechanical brake, including a magnetic circuit with at least two ferromagnetic parts fitted to move in relation to each other. A thrusting force is exerted between the ferromagnetic parts via a spring. The brake includes a magnetizing coil fitted into the magnetic circuit, for forming magnetic attraction between the parts of the brake. The arrangement includes a control of the brake, which includes at least one controllable switch, for adjusting the electricity supply of the magnetizing coil. The control of the brake comprises a supervision of the movement of the magnetic circuit of the brake.
    Type: Grant
    Filed: April 28, 2011
    Date of Patent: May 20, 2014
    Assignee: Kone Corporation
    Inventors: Jussi Huppunen, Asmo Tenhunen, Petri Alkula, Mika Olkkonen, Tuukka Kauppinen
  • Patent number: 8727077
    Abstract: The invention relates to an elevator brake, said elevator comprising a hoisting machine (1) provided with at least a frame part (2) and a traction sheave (3), and a brake drum (4) arranged to be rotatable with the traction sheave (3) and provided with a braking surface (5), and a brake (6) having an effect on the rotary motion of the traction sheave (3), said brake (6) comprising at least one brake block (8) provided with a braking surface, which brake block (8) has been arranged to act on the braking surface (5) of the brake drum (4) with a force directed substantially towards the braking surface (5). To allow adjustment of the size of the air gap (8a) between the braking surface of the brake block (8) and the braking surface (5) of the brake drum (4), the brake (6) is provided with at least one eccentric adjusting element (11).
    Type: Grant
    Filed: May 11, 2010
    Date of Patent: May 20, 2014
    Assignee: Kone Corporation
    Inventors: Arttu Hult, Mika Olkkonen
  • Publication number: 20140076675
    Abstract: The invention relates to a method and an arrangement for adjusting a brake. The arrangement comprises: a frame part of the brake; a counterpart to be pressed against the frame part; an elastic damping member for damping the noise of the brake, which damping member is configured to form a damping force resisting contact between the countersurfaces of the frame part and of the counterpart, said damping force increasing when the distance between the countersurfaces decreases; and also an adjustment means, for adjusting the damping force formed by the damping member and resisting contact between the countersurfaces of the frame part and of the counterpart.
    Type: Application
    Filed: November 22, 2013
    Publication date: March 20, 2014
    Applicant: Kone Corporation
    Inventors: Mika OLKKONEN, Antti SAARELAINEN
  • Publication number: 20140048359
    Abstract: The invention relates to an electromagnetic brake and a method for making an electomagnetic brake. The electromagnetic brake comprises a frame part, an armature part movably mounted on the frame part and having a magnetic core, one or more spring elements for activating the brake by moving the said armature part forwards, an electromagnet fitted to the frame part and arranged to release the brake by pulling the said armature part backwards by resisting the said one or more spring elements, and a planar, elastically bendable damping plate fitted to be bent when the armature part is moving and, while being bent, to produce a damping force resisting the bending to dampen brake noise.
    Type: Application
    Filed: October 25, 2013
    Publication date: February 20, 2014
    Applicant: KONE CORPORATION
    Inventors: Mika OLKKONEN, Antti SAARELAINEN
  • Publication number: 20130306414
    Abstract: A mechanical fixing interface for fixing a machinery brake in a hoisting machine, a machinery brake, and a method for installing the machinery brake are disclosed. The fixing interface is formed in the frame part of the hoisting machine. The fixing interface includes two fixing surfaces for receiving the fixing lugs of the machinery brake, and between the fixing surfaces is a space for the machinery brake.
    Type: Application
    Filed: July 19, 2013
    Publication date: November 21, 2013
    Applicant: KONE Corporation
    Inventors: Janne Rahunen, Petri Alkula, Mika Virnes, Mika Olkkonen
  • Patent number: 8205721
    Abstract: A method and an arrangement for controlling a brake of an elevator. In the method a plurality of optional objectives of operation are determined for the elevator; one or more of these objectives is selected at a time to be implemented as an objective of the operation of the elevator by using selection criterion; references for the energizing current of the brake of the elevator that differ from each other and/or references for the closing current of the brake of the elevator that differ from each other are determined; the brake current reference used at any given time is selected so that the selected brake current reference best corresponds to an objective of the operation of the elevator to be implemented; and also the brake of the elevator is controlled by adjusting the brake current towards the selected brake current reference.
    Type: Grant
    Filed: August 5, 2011
    Date of Patent: June 26, 2012
    Assignee: Kone Corporation
    Inventors: Tuukka Korhonen, Asmo Tenhunen, Petri Alkula, Mika Olkkonen, Jussi Huppunen, Jyrki Laaksonheimo
  • Publication number: 20110308894
    Abstract: A method and an arrangement for controlling a brake of an elevator. In the method a plurality of optional objectives of operation are determined for the elevator; one or more of these objectives is selected at a time to be implemented as an objective of the operation of the elevator by using selection criterion; references for the energizing current of the brake of the elevator that differ from each other and/or references for the closing current of the brake of the elevator that differ from each other are determined; the brake current reference used at any given time is selected so that the selected brake current reference best corresponds to an objective of the operation of the elevator to be implemented; and also the brake of the elevator is controlled by adjusting the brake current towards the selected brake current reference.
    Type: Application
    Filed: August 5, 2011
    Publication date: December 22, 2011
    Applicant: KONE Corporation
    Inventors: Tuukka Korhonen, Asmo Tenhunen, Petri Alkula, Mika Olkkonen, Jussi Huppunen, Jyrki Laaksonheimo
  • Publication number: 20110198167
    Abstract: An arrangement and a method for supervising the operation of a brake includes a controllable electromechanical brake, including a magnetic circuit with at least two ferromagnetic parts fitted to move in relation to each other. A thrusting force is exerted between the ferromagnetic parts via a spring. The brake includes a magnetizing coil fitted into the magnetic circuit, for forming magnetic attraction between the parts of the brake. The arrangement includes a control of the brake, which includes at least one controllable switch, for adjusting the electricity supply of the magnetizing coil. The control of the brake comprises a supervision of the movement of the magnetic circuit of the brake.
    Type: Application
    Filed: April 28, 2011
    Publication date: August 18, 2011
    Inventors: Jussi Huppunen, Asmo Tenhunen, Petri Alkula, Mika Olkkonen, Tuukka Kauppinen
  • Patent number: 7928624
    Abstract: The present invention relates to an electric motor and to a method for manufacturing an electric motor. The electric motor comprises at least a stator (24), a rotor (25) and an air gap (26) between these, in which motor the stator and/or rotor comprises slots (4) and teeth (5) between slots, and in which the stator and/or rotor has a concentrated winding fitted in the slots. In the method of the invention, the phase windings are fitted as a concentrated fractional-slot winding.
    Type: Grant
    Filed: June 17, 2009
    Date of Patent: April 19, 2011
    Assignee: Kone Corporation
    Inventors: Jussi Huppunen, Asmo Tenhunen, Petri Alkula, Mika Olkkonen
  • Publication number: 20100213016
    Abstract: The invention relates to an elevator brake, said elevator comprising a hoisting machine (1) provided with at least a frame part (2) and a traction sheave (3), and a brake drum (4) arranged to be rotatable with the traction sheave (3) and provided with a braking surface (5), and a brake (6) having an effect on the rotary motion of the traction sheave (3), said brake (6) comprising at least one brake block (8) provided with a braking surface, which brake block (8) has been arranged to act on the braking surface (5) of the brake drum (4) with a force directed substantially towards the braking surface (5). To allow adjustment of the size of the air gap (8a) between the braking surface of the brake block (8) and the braking surface (5) of the brake drum (4), the brake (6) is provided with at least one eccentric adjusting element (11).
    Type: Application
    Filed: May 11, 2010
    Publication date: August 26, 2010
    Inventors: Arttu HULT, Mika Olkkonen
  • Publication number: 20090251024
    Abstract: The present invention relates to an electric motor and to a method for manufacturing an electric motor. The electric motor comprises at least a stator (24), a rotor (25) and an air gap (26) between these, in which motor the stator and/or rotor comprises slots (4) and teeth (5) between slots, and in which the stator and/or rotor has a concentrated winding fitted in the slots. In the method of the invention, the phase windings are fitted as a concentrated fractional-slot winding.
    Type: Application
    Filed: June 17, 2009
    Publication date: October 8, 2009
    Inventors: Jussi HUPPUNEN, Asmo Tenhunen, Petri Alkula, Mika Olkkonen