Patents by Inventor Seppo Suur-Askola

Seppo Suur-Askola 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: 20200325003
    Abstract: The invention refers to an electric linear motor comprising a longitudinal stator beam; at least one mover adapted to move along the stator beam; which stator beam comprises at least two side faces located at opposite sides of the stator beam, each of the side faces carrying ferromagnetic poles spaced apart by a pitch, and which mover comprises at least two counter-faces facing the respective side faces of the stator beam, wherein the at least two side faces, as well as the at least two counter-faces facing the respective side faces, are inclined or offset with respect to each other.
    Type: Application
    Filed: June 30, 2020
    Publication date: October 15, 2020
    Applicant: Kone Corporation
    Inventors: Tuukka KORHONEN, Tero HAKALA, Pasi RAASSINA, Seppo SUUR-ASKOLA, Marko HINKKANEN, Seppo SAARAKKALA, Maksim SOKOLOV, Reza HOSSEINZADEH
  • Patent number: 10689227
    Abstract: The invention refers to an electric linear motor, control apparatus, transport system and a method. The electric linear motor comprises a longitudinal stator beam; at least one mover at least partially surrounding the stator beam and adapted to move along the stator beam; which stator beam comprises at least two side faces located at opposite sides of the stator beam, each of the side faces carrying ferromagnetic poles spaced apart by a pitch, and which mover comprises at least two counter-faces facing the respective side faces of the stator beam. The mover has in at least one of said counter-faces rotor units having at least one winding and at least one permanent magnet arranged to co-act with the ferromagnetic poles of the respective side faces of the stator beam.
    Type: Grant
    Filed: February 12, 2019
    Date of Patent: June 23, 2020
    Assignee: Kone Corporation
    Inventors: Tuukka Korhonen, Tero Hakala, Pasi Raassina, Seppo Suur-Askola, Marko Hinkkanen, Seppo Saarakkala, Maksim Sokolov, Reza Hosseinzadeh
  • Publication number: 20200189884
    Abstract: An electric linear motor and an elevator are presented. The electric linear motor includes a stator beam including at least two stators rails, and a number of movers configured to move with respect to the stator beam. Each mover includes at least two motor units configured to be arranged next to the stator beam such that each one of the motor units faces one of the stator rails, and each one of the at least two motor units includes at least two independently controllable motor subunits arranged consecutively with respect to a longitudinal direction of the motor unit. Each of said motor subunits includes windings for generating a magnetic field to form a magnetic coupling between the motor subunit and the respective stator rail.
    Type: Application
    Filed: November 26, 2019
    Publication date: June 18, 2020
    Applicant: KONE Corporation
    Inventors: Tuukka Korhonen, Pasi Raassina, Seppo Suur-Askola
  • Patent number: 10574166
    Abstract: An electric linear motor for an elevator and a method for controlling the operation thereof are presented. The electric linear motor comprises at least one stator beam and at least one mover, wherein said at least one stator beam comprises at least two stators on opposite sides of the stator beam, and the at least one mover is in electromagnetic engagement with said at least two stators and configured to be moved relative to said stator beam. Said at least one mover comprises at least two units of electromagnetic components arranged on opposite sides of the stator beam to face said at least two stators for controlling the movement and the position of the mover with respect to said stator beam.
    Type: Grant
    Filed: February 20, 2018
    Date of Patent: February 25, 2020
    Assignee: KONE CORPORATION
    Inventors: Pasi Raassina, Seppo Suur-Askola, Jussi Lähteenmäki, Marko Minkkinen, Tuukka Korhonen
  • 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: 20190300329
    Abstract: The invention refers to an electric linear motor, control apparatus, transport system and a method. The electric linear motor comprises a longitudinal stator beam; at least one mover at least partially surrounding the stator beam and adapted to move along the stator beam; which stator beam comprises at least two side faces located at opposite sides of the stator beam, each of the side faces carrying ferromagnetic poles spaced apart by a pitch, and which mover comprises at least two counter-faces facing the respective side faces of the stator beam. The mover has in at least one of said counter-faces rotor units having at least one winding and at least one permanent magnet arranged to co-act with the ferromagnetic poles of the respective side faces of the stator beam.
    Type: Application
    Filed: February 12, 2019
    Publication date: October 3, 2019
    Applicant: Kone Corporation
    Inventors: Tuukka Korhonen, Tero Hakala, Pasi Raassina, Seppo Suur-Askola, Marko Hinkkanen, Seppo Saarakkala, Maksim Sokolov, Reza Hosseinzadeh
  • Publication number: 20190233251
    Abstract: A method and an elevator control unit for controlling a doorstep gap at a landing floor of an elevator and an elevator are presented. The elevator comprising an electric linear motor coupled to an elevator car, wherein the method comprises moving the elevator car relative to a stator beam of the electric linear motor at the landing floor for controlling the doorstep gap at the landing floor.
    Type: Application
    Filed: December 28, 2018
    Publication date: August 1, 2019
    Applicant: Kone Corporation
    Inventors: Tero Hakala, Ari Kattainen, Jussi Lahteenmaki, Seppo Suur-Askola, Jussi Perala
  • Publication number: 20180334362
    Abstract: A wireless power transfer arrangement for an elevator car of an elevator is presented. The wireless power transfer arrangement comprises primary winding units distantly arranged with respect to each other at first positions of an elevator shaft along which the elevator car is configured to be moved, at least one secondary winding unit arranged to the elevator car. Each one of the primary winding units and the at least one secondary winding unit are arranged so that there is a gap between said winding units for enabling movement of the secondary winding unit with respect to the primary winding units and for establishing an inductive coupling between said winding units whenever said winding units are arranged to face each other at one of the first positions.
    Type: Application
    Filed: May 3, 2018
    Publication date: November 22, 2018
    Applicant: Kone Corporation
    Inventors: Pasi RAASSINA, Seppo SUUR-ASKOLA, Ilya PETROV, Pekka PERUNKA
  • Publication number: 20180262146
    Abstract: An electric linear motor for an elevator and a method for controlling the operation thereof are presented. The electric linear motor comprises at least one stator beam and at least one mover, wherein said at least one stator beam comprises at least two stators on opposite sides of the stator beam, and the at least one mover is in electromagnetic engagement with said at least two stators and configured to be moved relative to said stator beam. Said at least one mover comprises at least two units of electromagnetic components arranged on opposite sides of the stator beam to face said at least two stators for controlling the movement and the position of the mover with respect to said stator beam.
    Type: Application
    Filed: February 20, 2018
    Publication date: September 13, 2018
    Applicant: KONE Corporation
    Inventors: Pasi RAASSINA, Seppo SUUR-ASKOLA, Jussi LÄHTEENMÄKI, Marko MINKKINEN, Tuukka KORHONEN
  • Publication number: 20180251338
    Abstract: The invention relates to an elevator system comprising: an elevator car; at least one motor operable in two modes wherein in the first mode the at least one motor is consuming electrical energy and in the second mode the at least on motor is generating electrical energy; at least one rechargeable battery coupled to the at least one motor; wherein the at least one rechargeable battery is configured to be charged with an energy generated by the at least one motor when the motor is in the second mode.
    Type: Application
    Filed: May 3, 2018
    Publication date: September 6, 2018
    Applicant: Kone Corporation
    Inventors: Jouni RATIA, Markku Haivala, Seppo Suur-Askola
  • 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
  • Patent number: 7527127
    Abstract: In the invention a method is presented for ensuring operating safety in an elevator system, an elevator system, and a safety device of an elevator system. The elevator system includes at least an elevator car, elevator ropes, an elevator motor, a traction sheave and at least two holding brakes, which holding brakes are arranged to prevent movement of the elevator car when the elevator is stopped. According to the invention the first holding brake is engaged at the end of an elevator run, and the other holding brakes are engaged with a delay. When one holding brake is engaged, the state of motion of the elevator and any slipping of the brake is monitored. If the brake is detected as slipping, a procedure for preventing a hazardous situation is performed.
    Type: Grant
    Filed: February 7, 2008
    Date of Patent: May 5, 2009
    Assignee: Kone Corporation
    Inventors: Jari Österman, Seppo Suur-Askola, Jarmo Myllynen, Simo Mäkimattila, Jukka Korpela, Joni Kiiski
  • Publication number: 20080185231
    Abstract: In the invention a method is presented for ensuring operating safety in an elevator system, an elevator system, and a safety device of an elevator system. The elevator system comprises at least an elevator car, elevator ropes, an elevator motor, a traction sheave and at least two holding brakes, which holding brakes are arranged to prevent movement of the elevator car when the elevator is stopped. According to the invention the first holding brake is engaged at the end of an elevator run, and the other holding brakes are engaged with a delay. When one holding brake is engaged, the state of motion of the elevator and any slipping of the brake is monitored. If the brake is detected as slipping, a procedure for preventing a hazardous situation is performed.
    Type: Application
    Filed: February 7, 2008
    Publication date: August 7, 2008
    Applicant: KONE CORPORATION
    Inventors: Jari Osterman, Seppo Suur-Askola, Jarmo Myllynen, Simo Makimattila, Jukka Korpela, Joni Kiiski
  • Patent number: 6854565
    Abstract: The invention relates to a method for monitoring the condition of the door of an elevator and determining its need for maintenance, the door comprising a door mechanism, door panels and a door operator. The signals (10) of the control system of a door in good condition are measured and a set of characteristics descriptive of the operation of the door is generated from them. The signals (10) of the door control system are measured the operation during the opening and closing movements of the door is divided into stages according to which parts of the door are functioning at each stage. From the measured signals (10), a set of characteristics descriptive of the operation of the door is generated. The set of characteristics thus generated is compared to the set of characteristics for a normal operating condition stored in memory, at least in one stage of operation.
    Type: Grant
    Filed: April 17, 2003
    Date of Patent: February 15, 2005
    Assignee: Kone Corporation
    Inventors: Pekka Perälä, Riitta Partanen-Jokela, Seppo Suur-Askola, Pekka Torenius
  • Publication number: 20030217894
    Abstract: The invention relates to a method for monitoring the condition of the door of an elevator and determining its need for maintenance, the door comprising a door mechanism, door panels and a door operator. The signals (10) of the control system of a door in good condition are measured and a set of characteristics descriptive of the operation of the door is generated from them. The signals (10) of the door control system are measured the operation during the opening and closing movements of the door is divided into stages according to which parts of the door are functioning at each stage. From the measured signals (10), a set of characteristics descriptive of the operation of the door is generated. The set of characteristics thus generated is compared to the set of characteristics for a normal operating condition stored in memory, at least in one stage of operation.
    Type: Application
    Filed: April 17, 2003
    Publication date: November 27, 2003
    Inventors: Pekka Perala, Riitta Partanen-Jokela, Seppo Suur-Askola, Pekka Torenius
  • Patent number: 5896948
    Abstract: A reserve power system includes a reserve power machine (2) for the generation of power. The reserve power machine (2) is connected via a distribution network (4) to consumers (10,12) and elevator drives (8). The elevator drives include an elevator hoisting motor (28) and a frequency converter (26) controlling it. The elevator drives are provided with regulating devices (26, 44, 46) by means of which the speed of the elevator motor (28) is so adjusted that the power taken by the elevator drive (8) from the distribution network (4) is lower than an adjustable power limit (P.sub.A).
    Type: Grant
    Filed: July 24, 1997
    Date of Patent: April 27, 1999
    Assignee: Kone Oy
    Inventors: Seppo Suur-Askola, Timo Lehtonen, Ralf Ekholm
  • Patent number: 5894910
    Abstract: A velocity-controlled elevator drive including an a.c. motor (28) driving elevator machinery regulated by means of a frequency converter (26) supplying the motor (28) with a controlled frequency and voltage. The load condition of the elevator is measured by means of a load weighing device (32) in the elevator car. A power limit (P.sub.A) is input to the elevator machinery as a reference value and the speed reference (38) given to the frequency converter is determined on the basis of the power limit (P.sub.A) and the load condition.
    Type: Grant
    Filed: July 28, 1997
    Date of Patent: April 20, 1999
    Assignee: Kone OY
    Inventors: Seppo Suur-Askola, Timo Lehtonen, Ralf Ekholm
  • Patent number: 5798490
    Abstract: A procedure for determining the position of an elevator car in which the code data contained in code units mounted in the building is read by means of a code data detector unit (4) in such manner that a code unit containing floor data and door zone data is mounted essentially close to the threshold of the landing door on each floor and that the detector unit reading the floor data and door data is mounted essentially close to the threshold of the car.
    Type: Grant
    Filed: March 5, 1997
    Date of Patent: August 25, 1998
    Assignee: Kone Oy
    Inventors: Olavi Vairio, Jarmo Maenpaa, Seppo Suur-Askola