Patents by Inventor Tero Purosto

Tero Purosto 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: 10965224
    Abstract: A method for levitation control of a linear motor includes supplying an alternating current or alternating voltage to at least one oscillating circuit including at least one sensing coil being or assumed to be arranged in a fixed spatial correlation to a mover part of the linear motor such that an opening plane of the sensing coil faces a sensor counter-surface of a stator part of the linear motor with a gap therebetween; receiving a response signal from the oscillating circuit; determining a gap length of the gap based on the response signal; and controlling the gap length by driving a magnetic levitation unit of the linear motor based on the determined gap length. An inductive sensing device and an elevator system, and a method for determining a position of the linear motor are also disclosed.
    Type: Grant
    Filed: January 11, 2018
    Date of Patent: March 30, 2021
    Assignee: KONE CORPORATION
    Inventors: Henry Piitulainen, Seppo Suur-Askola, Tero Purosto
  • Publication number: 20210047146
    Abstract: The invention refers to an electric linear motor comprising at least one linear stator designed to be located in a fixed correlation to an environment, particularly building, and at least one mover designed for connection with an element to be moved and co-acting with the stator, which motor comprises a stator beam supporting said at least one stator, which stator beam has at least one side face carrying ferromagnetic poles of said stator spaced apart by a pitch, and which mover comprises at least one counter-face facing said side face(s) of the stator beam, in which counter-face electro-magnetic components of the mover are located.
    Type: Application
    Filed: October 30, 2020
    Publication date: February 18, 2021
    Applicant: KONE Corporation
    Inventors: Ilya PETROV, Tero PUROSTO, Tero HAKALA, Jouni RATIA
  • Patent number: 10858219
    Abstract: The invention refers to an electric linear motor comprising at least one linear stator designed to be located in a fixed correlation to an environment, particularly building, and at least one mover designed for connection with an element to be moved and co-acting with the stator, which motor comprises a stator beam supporting said at least one stator, which stator beam has at least one side face carrying ferromagnetic poles of said stator spaced apart by a pitch, and which mover comprises at least one counter-face facing said side face(s) of the stator beam, in which counter-face electro-magnetic components of the mover are located.
    Type: Grant
    Filed: December 11, 2017
    Date of Patent: December 8, 2020
    Assignee: KONE CORPORATION
    Inventors: Ilya Petrov, Tero Purosto, Tero Hakala, Jouni Ratia
  • Patent number: 10826368
    Abstract: A linear flux switching permanent magnet (FSPM) motor includes a longitudinal, linear stator with stator teeth facing an air gap and a mover including at least one armature including armature teeth embedding at least one permanent magnet, which armature teeth are spaced apart by slots for receiving an armature winding, and which armature teeth have an extended width portion towards the air gap. The extended width portion of the armature teeth begins in the longitudinal direction of the armature teeth already at the level of the armature windings.
    Type: Grant
    Filed: April 4, 2018
    Date of Patent: November 3, 2020
    Assignee: KONE CORPORATION
    Inventors: Tero Hakala, Tuukka Korhonen, Tero Purosto, Ilya Petrov, Juha Pyrhönen
  • Patent number: 10749423
    Abstract: A linear flux switching permanent magnet (FSPM) motor includes a longitudinal linear stator with stator teeth facing an air gap and a mover including at least one armature including armature teeth, which are spaced apart by slots for receiving an armature winding. At least some, preferably all of the armature teeth embed at least two permanent magnets, respectively, which are positioned successively in longitudinal direction of the tooth, whereby the two permanent magnets have different magnetic properties.
    Type: Grant
    Filed: April 4, 2018
    Date of Patent: August 18, 2020
    Assignee: KONE CORPORATION
    Inventors: Tero Hakala, Tuukka Korhonen, Tero Purosto, Ilya Petrov, Juha Pyrhönen
  • Publication number: 20200195182
    Abstract: An electric linear motor, an elevator and a method for controlling rotation of a mover with respect to a stator beam are presented. The electric linear motor includes a number of stator beams, wherein at least one of the stator beams includes a plurality of stators extending in a longitudinal direction of the stator beam, a number of movers, wherein at least one of the movers includes a plurality of armatures, wherein each one of the armatures is adapted for establishing an electromagnetic coupling with a corresponding one of the stators for moving the mover along said stator, and wherein at least one of the armatures is arranged to be offset from the aligned position with respect to the corresponding one of the stators in a perpendicular direction relative to the longitudinal direction.
    Type: Application
    Filed: November 21, 2019
    Publication date: June 18, 2020
    Applicant: KONE Corporation
    Inventors: Jussi Lähteenmäki, Tuukka Korhonen, Tero Purosto, Tero Hakala
  • Publication number: 20200195183
    Abstract: An electric linear motor, an elevator and a method for controlling rotation of a mover with respect to a stator beam are presented. The electric linear motor includes a number of stator beams, wherein at least one of them includes stators extending in a longitudinal direction of the beam. The motor also includes a number of movers, wherein at least one them includes armatures, wherein each armature is adapted for establishing an electromagnetic coupling with a corresponding stator for moving the mover. The motor also includes an air gap regulator for regulating movement of the mover with respect to the stator beam, wherein the air gap regulator includes guide element(s) arranged for limiting the rotation of the mover with respect to the stator beam.
    Type: Application
    Filed: November 21, 2019
    Publication date: June 18, 2020
    Applicant: KONE Corporation
    Inventors: Jussi Lähteenmäki, Tuukka Korhonen, Tero Purosto, Tero Hakala
  • Publication number: 20200176183
    Abstract: A method for manufacturing a magnetic core of an electric machine is presented. The method comprises defining at least one characteristic of magnetic flux for each of at least two portions of the magnetic core, determining types for each of the at least two portions of the magnetic core based on the defined at least one characteristic representing the corresponding portion of the magnetic core, and obtaining or producing the magnetic core comprising the at least two portions having the determined types.
    Type: Application
    Filed: February 10, 2020
    Publication date: June 4, 2020
    Applicant: KONE CORPORATION
    Inventors: Tuukka KORHONEN, Tero HAKALA, Tero PUROSTO, Jouni RATIA
  • Publication number: 20200087113
    Abstract: An arrangement and a method for changing a direction of movement of an elevator car of an elevator, and the elevator thereof, are presented. The arrangement comprises at least two rotatable first stator beam parts for receiving at least two movers rotatably coupled to the elevator car and at least one actuator for rotating the at least two first stator beam parts. Said stator beam parts are arranged such that the axes of rotation of said stator beam parts align with the axes of rotation of the movers when the movers are arranged at corresponding positions. Each one of the movers rotates along with a respective first stator beam part when said respective first stator beam part is being rotated by the at least one actuator.
    Type: Application
    Filed: November 22, 2019
    Publication date: March 19, 2020
    Applicant: Kone Corporation
    Inventors: Tero HAKALA, Tero PUROSTO, Marko MINKKINEN, Jouni LAPPALAINEN
  • Publication number: 20190359447
    Abstract: An elevator and a method for testing an operating condition of two or more elevator car brakes are provided, each of the car brakes including an actuator to control the car brake and each of the car brakes mounted to elevator car and fitted to selectively engage against a guide rail of an elevator car to stop movement of an elevator car or to open to enable movement of an elevator car. The method includes an empty car is kept at a standstill by providing a driving force upwards with all the N movers mounted to the elevator car, and total current Lot of all N movers is determined. One of the car brakes is applied while the others are kept open. The driving current of each of the movers is gradually decreased, and movement of elevator car is observed.
    Type: Application
    Filed: August 6, 2019
    Publication date: November 28, 2019
    Applicant: KONE Corporation
    Inventors: Tero HAKALA, Ari KATTAINEN, Jussi LÄHTEENMÄKI, Seppo SUUR-ASKOLA, Jussi PERÄLÄ, Tero PUROSTO
  • Publication number: 20190352128
    Abstract: A levitating guide shoe arrangement and a method for guiding an elevator car along a stator beam of an electric linear motor during an emergency condition are presented. A levitating guide shoe arrangement for guiding an elevator car along a stator beam of an electric linear motor during an emergency condition includes a levitating guide shoe and a guide surface. The guide surface is included in the stator beam. The levitating guide shoe is configured for arranging in an operating position with respect to the guide surface and includes a magnetic field generator configured to generate a magnetic field that extends to the guide surface. The arrangement is configured to establish an air gap between the levitating guide shoe and the guide surface by the magnetic field.
    Type: Application
    Filed: April 30, 2019
    Publication date: November 21, 2019
    Applicant: KONE Corporation
    Inventors: Tuukka Korhonen, Jouni Ratia, Tero Hakala, Tero Purosto
  • Publication number: 20180294705
    Abstract: A linear flux switching permanent magnet (FSPM) motor includes a longitudinal linear stator with stator teeth facing an air gap and a mover including at least one armature including armature teeth, which are spaced apart by slots for receiving an armature winding. At least some, preferably all of the armature teeth embed at least two permanent magnets, respectively, which are positioned successively in longitudinal direction of the tooth, whereby the two permanent magnets have different magnetic properties.
    Type: Application
    Filed: April 4, 2018
    Publication date: October 11, 2018
    Applicant: KONE Corporation
    Inventors: Tero HAKALA, Tuukka KORHONEN, Tero PUROSTO, Ilya PETROV, Juha PYRHÖNEN
  • Publication number: 20180294706
    Abstract: A linear flux switching permanent magnet (FSPM) motor includes a longitudinal linear stator with stator teeth facing an air gap and a mover including at least one armature with armature teeth, whereby at least some of said, preferably all of said armature teeth embed at least one permanent magnet, respectively, which armature teeth are spaced apart by slots for receiving an armature winding. The permanent magnets embedded in the corresponding armature teeth protrude by an overhang over the back of the armature in a direction facing away from the air gap.
    Type: Application
    Filed: April 4, 2018
    Publication date: October 11, 2018
    Applicant: KONE Corporation
    Inventors: Tero HAKALA, Tuukka KORHONEN, Tero PUROSTO, Ilya PETROV, Juha PYRHÖNEN
  • Publication number: 20180294704
    Abstract: A linear flux switching permanent magnet (FSPM) motor includes a longitudinal, linear stator with stator teeth facing an air gap and a mover including at least one armature including armature teeth embedding at least one permanent magnet, which armature teeth are spaced apart by slots for receiving an armature winding, and which armature teeth have an extended width portion towards the air gap. The extended width portion of the armature teeth begins in the longitudinal direction of the armature teeth already at the level of the armature windings.
    Type: Application
    Filed: April 4, 2018
    Publication date: October 11, 2018
    Applicant: KONE Corporation
    Inventors: Tero HAKALA, Tuukka KORHONEN, Tero PUROSTO, Ilya PETROV, Juha PYRHÖNEN
  • Publication number: 20180251343
    Abstract: The invention relates to an elevator comprising an electric linear motor comprising at least one linear stator designed to be located in a fixed correlation to an environment, particularly building, and at least one mover designed for connection with an elevator car to be moved and co-acting with the stator to move the car, which motor comprises a stator beam supporting said at least one stator, which stator beam has at least one side face carrying ferromagnetic poles of said stator spaced apart by a pitch, and which mover comprises at least one counter-face facing said side face(s) of the stator beam, in which counter-face electro-magnetic components of the mover are arranged to co-act with the ferromagnetic poles mounted on the stator beam, which elevator comprises an elevator brake.
    Type: Application
    Filed: February 22, 2018
    Publication date: September 6, 2018
    Applicant: KONE Corporation
    Inventors: Tero HAKALA, Ari KATTAINEN, Jussi LÄHTEENMÄKI, Seppo SUUR-ASKOLA, Jussi PERÄLÄ, Tero PUROSTO
  • Publication number: 20180248498
    Abstract: A method for levitation control of a linear motor includes supplying an alternating current or alternating voltage to at least one oscillating circuit including at least one sensing coil being or assumed to be arranged in a fixed spatial correlation to a mover part of the linear motor such that an opening plane of the sensing coil faces a sensor counter-surface of a stator part of the linear motor with a gap therebetween; receiving a response signal from the oscillating circuit; determining a gap length of the gap based on the response signal; and controlling the gap length by driving a magnetic levitation unit of the linear motor based on the determined gap length. An inductive sensing device and an elevator system, and a method for determining a position of the linear motor are also disclosed.
    Type: Application
    Filed: January 11, 2018
    Publication date: August 30, 2018
    Applicant: KONE Corporation
    Inventors: Henry PIITULAINEN, Seppo SUUR-ASKOLA, Tero PUROSTO
  • Publication number: 20180111798
    Abstract: The invention refers to an electric linear motor comprising at least one linear stator designed to be located in a fixed correlation to an environment, particularly building, and at least one mover designed for connection with an element to be moved and co-acting with the stator, which motor comprises a stator beam supporting said at least one stator, which stator beam has at least one side face carrying ferromagnetic poles of said stator spaced apart by a pitch, and which mover comprises at least one counter-face facing said side face(s) of the stator beam, in which counter-face electro-magnetic components of the mover are located.
    Type: Application
    Filed: December 11, 2017
    Publication date: April 26, 2018
    Applicant: KONE Corporation
    Inventors: Ilya PETROV, Tero PUROSTO, Tero HAKALA, Jouni RATIA
  • Publication number: 20180105396
    Abstract: An elevator includes at least one elevator shaft and at least one elevator car traveling in the elevator shaft. The elevator has at least one elevator motor including at least one linear stator located vertically along the elevator shaft and at least one mover located in connection with the elevator car and co-acting with the stator. The elevator includes a vertical stator beam supporting at least one stator, which stator beam has at least one side face carrying ferromagnetic poles of said stator spaced apart by a pitch. The mover includes at least one counter-face facing the side face(s) of the stator beam, in which electro-magnetic components of the mover are located.
    Type: Application
    Filed: December 7, 2017
    Publication date: April 19, 2018
    Applicant: KONE Corporation
    Inventors: Tero Purosto, Tero Hakala, Jouni Ratia, Ilya Petrov
  • Patent number: 5889240
    Abstract: Push button arrangement for an elevator including a push button (7) with a mounting element (1), a mounting base (10), a cover plate (17) and a circuit card (3). The push button (7) is attached to the mounting element (1) using double-sided tape. The push button (7) is provided with an opening (8) for a call acknowledgement light. The mounting element (1) is fitted by its legs (2) in holes (19) provided in the circuit card (3). The circuit card (3) is provided with membrane switches (4) and attached to the mounting base (10) by gluing so that its lugs engage holes (11) in the mounting base (10). The cover plate (17) covers the push button panel.
    Type: Grant
    Filed: April 21, 1997
    Date of Patent: March 30, 1999
    Assignee: Kone Oy
    Inventors: Tero Purosto, Antti Laine, Asko Juntunen