Patents by Inventor Mikko VILJANEN

Mikko VILJANEN 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).

  • Publication number: 20220119222
    Abstract: The measurement arrangement for measuring the rotation speed of a component of an elevator, escalator, moving walkway or moving ramp comprises an inductive sensor that is arranged stationary in respect of a rotation axis of the component and adjacent to the component or a measurement part that is attached to the component in a rotationally fixed manner, and the component or the measurement part is configured as rotationally unsymmetrical about the rotation axis so that different angular positions of the component about the rotation axis generate different output signals in the inductive sensor.
    Type: Application
    Filed: December 29, 2021
    Publication date: April 21, 2022
    Applicant: Kone Corporation
    Inventors: Tapani TALONEN, Jyrki JOKINEN, Henri WENLIN, Matti RASANEN, Mikko VILJANEN
  • Publication number: 20220033214
    Abstract: The invention relates to an elevator system comprising at least two elevator cars adapted to travel in respective separate hoistways of the same building. The at least two elevator cars have at least two different rated speeds comprising lowest rated speed and a rated speed higher than the lowest rated speed. At least each said elevator car with the rated speed higher than the lowest rated speed is provided with an electronic overspeed monitoring equipment configured to stop the movement of the elevator car, if the speed of the elevator car meets an overspeed threshold. The overspeed threshold is decreasing towards at least one end terminal of the hoistway. Each of said separate hoistway of the building has a bottom end terminal space with a substantially equal height and/or a top end terminal space with a substantially equal height.
    Type: Application
    Filed: October 15, 2021
    Publication date: February 3, 2022
    Applicant: KONE Corporation
    Inventors: Mikko Viljanen, Henri Wenlin, Asmo Tenhunen, Antti Kallioniemi, Mikko Parviainen
  • Publication number: 20210387832
    Abstract: The invention concerns a method, system and computer program for monitoring the run of a roping interconnecting a car and a counterweight of an elevator and for detecting an abnormal operation condition during the drive of a traction sheave intending therewith the car and the counterweight to be moved via said roping. Said roping is running on its way from the car to the traction sheave via at least one pulley and on its way from the counterweight to the traction sheave via at least one pulley, wherein the rotation of said at least two pulleys is monitored by sensing their rotation. These rotation data are then analysed in view of a mutual correlation indicating therewith a synchronized run of the roping on either side of the traction sheave, and detecting therewith an abnormal situation when detecting an absence of such correlation.
    Type: Application
    Filed: May 3, 2021
    Publication date: December 16, 2021
    Applicant: KONE Corporation
    Inventors: Mikko Viljanen, Tarvo Viita-aho, Tapani Talonen, Matti Räsänen, Juha-Matti Aitamurto, Tapio Siironen, Ville Myyryläinen, Henri Wenlin
  • Publication number: 20210371241
    Abstract: An elevator safety monitoring system, an elevator system, an elevator drive unit, and a method for operating an elevator are presented. The elevator safety monitoring system includes an elevator car absolute position and speed feedback device, a safety monitor connected to the absolute position and speed feedback device, and a safety zone extending inside an elevator shaft. The safety zone is associated with an allowable maximum speed of an elevator car, wherein the allowable maximum speed is lower than a rated speed of an elevator car outside the safety zone, wherein the safety monitor is configured to determine a slowdown failure of the elevator car approaching the safety zone, and, upon the determination of the slowdown failure, command an actuator to decelerate the elevator car to the allowable maximum speed.
    Type: Application
    Filed: April 20, 2021
    Publication date: December 2, 2021
    Applicant: KONE Corporation
    Inventors: Tapani Talonen, Kari Rahkonen, Tapio Siironen, Mikko Viljanen
  • Publication number: 20210339983
    Abstract: A compensation guide, counterweight screen, traction elevator and method for guiding a compensation element are disclosed. The compensation guide includes a horizontally directed guide opening through which the compensation guide passes. The guide is mounted vertically movably to the counterweight screen.
    Type: Application
    Filed: March 16, 2021
    Publication date: November 4, 2021
    Applicant: KONE Corporation
    Inventors: Oskari Ilvonen, Pauli Waselius, Mikko Viljanen, Tuomas Rantala, Olli Männistö, Esa Suorsa
  • Publication number: 20210061614
    Abstract: A method for determining a degraded guide rail condition in an elevator system, a computer program product, and an elevator system are disclosed. The method includes obtaining first data including information about movement of an elevator component relative to a guide rail, and obtaining second data including information about movement of an elevator component. The method further includes comparing the first data and the second data to each other, and detecting, based on the comparison, a deviation fulfilling a deviation criterion. Still further, the method includes creating a signal indicating the degraded, such as misaligned, guide rail condition, such as of the first or the second guide rail.
    Type: Application
    Filed: August 28, 2020
    Publication date: March 4, 2021
    Applicant: KONE Corporation
    Inventors: Mikko Viljanen, Henri Wenlin
  • Publication number: 20200391976
    Abstract: An elevator includes an elevator shaft defined by surrounding walls and top and bottom end terminals; an elevator car vertically movable in the elevator shaft; elevator hoisting ropes coupled to the elevator car; an elevator hoisting machine including a traction sheave engaged with the elevator hoisting ropes; a traction monitor configured to determine traction of the hoisting machine; an electromechanical brake; a measuring apparatus adapted to provide speed data and position data of the elevator car; and a safety processor associated with the traction monitor and the measuring apparatus. The safety processor includes an ETLS threshold configured to decrease towards the top and/or bottom end terminal in accordance with the position of the elevator car. The ETSL threshold is adjusted on the basis of the traction of the hoisting machine. The safety processor is configured to determine an elevator car slowdown failure if the speed data meets or exceeds the ETSL threshold.
    Type: Application
    Filed: May 26, 2020
    Publication date: December 17, 2020
    Applicant: KONE Corporation
    Inventors: Mikko Viljanen, Juha-Matti Aitamurto, Tuukka Kauppinen, Riku Lampinen, Toni Kallio, Veli-Matti Virta
  • Publication number: 20200339381
    Abstract: The invention relates to a method for operating an elevator system. The method comprises receiving a request to drive an elevator car to a destination and generating an elevator car motion profile to serve the received request. The elevator car motion profile comprises at least the following motion parameters of the elevator car: acceleration, maximum speed, and deceleration. At least one of the maximum speed of the elevator car and the deceleration of the elevator car in the generated elevator car motion profile is defined on the basis of the destination. The invention relates also to a processing unit and an elevator system configured to perform the method at least partly.
    Type: Application
    Filed: April 10, 2020
    Publication date: October 29, 2020
    Applicant: Kone Corporation
    Inventors: Mikko VILJANEN, Henri WENLIN, Asmo TENHUNEN, Antti KALLIONIEMI, Mikko PARVIAINEN
  • Patent number: 9976347
    Abstract: A ladder support bracket has a support shoulder for creating a support contact with a complementary backup. The bracket includes at least one jaw for joining the bracket to an upstanding rail of a ladder, the jaw having also a retainer mechanism by means of which the bracket—when being attached to a rail of a ladder—can be brought into a clamping position attaching the bracket unmovably to the rail and a release position holding the bracket in a swivel connection relative to the rail and/or movably along at least a section of such rail.
    Type: Grant
    Filed: June 29, 2016
    Date of Patent: May 22, 2018
    Assignee: KONE CORPORATION
    Inventors: Mikko Viljanen, Mika Alvesalo, Tapio Siironen
  • Publication number: 20170044830
    Abstract: A ladder support bracket has a support shoulder for creating a support contact with a complementary backup. The bracket includes at least one jaw for joining the bracket to an upstanding rail of a ladder, the jaw having also a retainer mechanism by means of which the bracket—when being attached to a rail of a ladder—can be brought into a clamping position attaching the bracket unmovably to the rail and a release position holding the bracket in a swivel connection relative to the rail and/or movably along at least a section of such rail.
    Type: Application
    Filed: June 29, 2016
    Publication date: February 16, 2017
    Applicant: KONE CORPORATION
    Inventors: Mikko VILJANEN, Mika ALVESALO, Tapio SIIRONEN