Patents by Inventor Juha-Matti Aitamurto

Juha-Matti Aitamurto 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: 11380190
    Abstract: According to an aspect, there is provided an elevator communication system. The system comprises an ethernet bus, a safety master node communicatively connected to the ethernet bus and configured to communicate via the ethernet bus, and safety slave nodes communicatively connected to the ethernet bus and configured to communicate via the ethernet bus. The safety master node and the safety slave nodes are configured to communicate by using a time-triggered communication protocol. In the time-triggered communication protocol the safety master node is configured to send a polling diagnostic request message to the safety slave nodes by using a predetermined polling cycle.
    Type: Grant
    Filed: April 9, 2021
    Date of Patent: July 5, 2022
    Assignee: Kone Corporation
    Inventors: Ari Kattainen, Juha-Matti Aitamurto, Gergely Huszak, Ferenc Staengler
  • Patent number: 11325813
    Abstract: An elevator includes a car with at least two car doors, each car door being provided with a door contact, a shaft being provided with corresponding landing doors, each landing door being provided with a door contact, each landing door opening in synchronism with the corresponding car door, the door contacts forming part of a safety circuit of the elevator, a car door contact input being connected to a middle point in the safety circuit between a series connection of the car door contacts and a series connection of the landing door contacts. A status information of the car door contact input is monitored in order to determine whether the door contacts are operational or not when the car doors are opened and/or closed with a predetermined time delay at a landing.
    Type: Grant
    Filed: June 28, 2019
    Date of Patent: May 10, 2022
    Assignee: KONE CORPORATION
    Inventors: Antti Hovi, Ari Kattainen, Juha-Matti Aitamurto
  • Publication number: 20220135373
    Abstract: A brake system for an elevator car, the brake system comprising a plurality of elevator car brakes, a plurality of electrical control units, and a plurality of electrical power supplies. Furthermore, at least two of the elevator car brakes are arranged to be operated by at least two of the electrical control units, and each one of the electrical control units is arranged to be supplied by at least one of the electrical power supplies. The brake system is configured so that at least two of the plurality of elevator car brakes are operable in case of a fault in any one or simultaneously in any two of the electrical control units and the electrical power supplies.
    Type: Application
    Filed: September 7, 2021
    Publication date: May 5, 2022
    Applicant: KONE Corporation
    Inventors: Juha-Matti AITAMURTO, Ari KATTAINEN
  • Publication number: 20220119225
    Abstract: An elevator communication system includes at least one ethernet bus segment, a controller communicatively connected to the at least one ethernet bus segment, and a plurality of elevator system nodes communicatively connected to the at least one ethernet bus segment. The controller is configured to determine a fault situation in the elevator communication system and cause reduction of the data communication via the at least one ethernet bus segment based on the fault situation.
    Type: Application
    Filed: September 7, 2021
    Publication date: April 21, 2022
    Applicant: KONE Corporation
    Inventors: Ari Kattainen, Juha-Matti Aitamurto, Gergely Huszak, Ferenc Staengler
  • Publication number: 20220106154
    Abstract: An elevator safety system includes an elevator car safety unit arranged on or at least in mechanical connection, preferably in fixed manner, with an elevator car; at least one distance measurement target; and a distance measurement device mounted on the elevator car for determining a distance between the distance measurement target and the distance measurement device. The elevator car safety unit is arranged in connection with the distance measurement device and is configured to generate an output signal based on the determined distance.
    Type: Application
    Filed: September 8, 2021
    Publication date: April 7, 2022
    Applicant: KONE Corporation
    Inventors: Juha-Matti Aitamurto, Ari Kattainen
  • Publication number: 20220106163
    Abstract: An elevator safety system includes an elevator control unit configured to: monitor an elevator shaft, receive a position, a movement direction, and a speed of at least one elevator car arranged into the elevator shaft, and determine dynamically at least one authorized shaft section based on the monitoring, and on the position, the movement direction, and the speed of at least one elevator car, and to provide an authorization to the at least one elevator car to move, such as by a linear motor, in or into the authorized shaft section of the elevator shaft. The elevator safety system further includes at least one elevator car controller configured to: provide the position, the movement direction, and the speed of the at least one elevator car to the elevator control unit, and receive the authorization. The elevator control unit and the elevator car controller are arranged to be in communication with each other.
    Type: Application
    Filed: September 14, 2021
    Publication date: April 7, 2022
    Applicant: KONE Corporation
    Inventors: Juha-Matti Aitamurto, Ari Kattainen
  • Publication number: 20220106165
    Abstract: A safety arrangement is suitable for a turning station of an elevator system. The safety arrangement includes at least one first blocking position for preventing, by a first mechanical device, an elevator car from entering the turning station, wherein the first mechanical device is arranged to change its position in response to operation of the turning station, and at least one second blocking position for preventing, by a second mechanical device, an elevator car from exiting the turning station.
    Type: Application
    Filed: September 15, 2021
    Publication date: April 7, 2022
    Applicant: KONE Corporation
    Inventors: Juha-Matti Aitamurto, Ari Kattainen
  • 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: 20210339978
    Abstract: According to an aspect, there is provided an elevator communication system. The system comprises an elevator controller, a multi-drop ethernet bus segment reachable by the elevator controller, and a plurality of elevator system nodes connected to the at least one multi-drop ethernet bus segment configured to communicate via the multi-drop ethernet bus, wherein the elevator controller is reachable by the elevator system nodes via the multi-drop ethernet bus segment.
    Type: Application
    Filed: April 15, 2021
    Publication date: November 4, 2021
    Applicant: Kone Corporation
    Inventors: Ari KATTAINEN, Juha-Matti AITAMURTO, Gergely HUSZAK
  • Publication number: 20210339976
    Abstract: According to an aspect, there is provided an elevator communication system. The system comprises an ethernet bus, at least one message forwarding element connected to the ethernet bus and being configured to communicate with a control entity that is external to the elevator system, and at least one elevator system component configured to communicate via the ethernet bus and being provided with an ethernet medium access control address. The at least one elevator system component is configured to at least one of receive an ethernet frame from the control entity and to send an ethernet frame to the control entity.
    Type: Application
    Filed: April 9, 2021
    Publication date: November 4, 2021
    Applicant: Kone Corporation
    Inventors: Ari KATTAINEN, Juha-Matti AITAMURTO, Gergely HUSZAK, Ferenc STAENGLER
  • Publication number: 20210339977
    Abstract: According to an aspect, there is provided an elevator communication system. The system comprises an ethernet bus; a controller communicatively connected to the ethernet bus and being configured to communicate via the ethernet bus; a plurality of elevator system nodes communicatively connected to the ethernet bus and being configured to communicate via the ethernet bus, wherein each elevator system node is associated with a respective landing; a landing bus segment at each landing, the landing bus segment being connected to the elevator system node associated with the landing; landings nodes at each landing connected to a respective landing bus segment. Each elevator system node of the plurality of elevator system nodes is provided with a connecting unit to enable communication between the ethernet bus and the respective landing bus segment.
    Type: Application
    Filed: April 14, 2021
    Publication date: November 4, 2021
    Applicant: Kone Corporation
    Inventors: Ari KATTAINEN, Juha-Matti AITAMURTO, Gergely HUSZAK
  • Publication number: 20210343138
    Abstract: According to an aspect, there is provided an elevator communication system. The system comprises an ethernet bus, a safety master node communicatively connected to the ethernet bus and configured to communicate via the ethernet bus, and safety slave nodes communicatively connected to the ethernet bus and configured to communicate via the ethernet bus. The safety master node and the safety slave nodes are configured to communicate by using a time-triggered communication protocol. In the time-triggered communication protocol the safety master node is configured to send a polling diagnostic request message to the safety slave nodes by using a predetermined polling cycle.
    Type: Application
    Filed: April 9, 2021
    Publication date: November 4, 2021
    Applicant: Kone Corporation
    Inventors: Ari KATTAINEN, Juha-Matti AITAMURTO, Gergely HUSZAK, Ferenc STAENGLER
  • Publication number: 20210339985
    Abstract: According to an aspect, there is provided a method for setting up an elevator safety system, the elevator safety system comprising an elevator system component, an actuator for causing a change in the status of the elevator system component, a data bus, a safety controller configured to communicate via the data bus, a sensor configured to indicate a change in the status of the elevator system component, and an elevator system node associated with the sensor configured to communicate via the data bus, wherein the elevator system node is configured to communicate a change in the status of the elevator system component to the safety controller via the data bus.
    Type: Application
    Filed: April 15, 2021
    Publication date: November 4, 2021
    Applicant: Kone Corporation
    Inventors: Ari KATTAINEN, Juha-Matti AITAMURTO
  • Publication number: 20210331892
    Abstract: The method for testing safety characteristics of an elevator comprises performing a balance check of the elevator according to a request.
    Type: Application
    Filed: April 8, 2021
    Publication date: October 28, 2021
    Applicant: Kone Corporation
    Inventors: Ari KATTAINEN, Juha-Matti AITAMURTO, Antti SAARELAINEN, Jussi LAHTEENMAKI
  • Patent number: 11124383
    Abstract: The elevator comprising a car moving upwards and downwards in a well, a controller controlling the elevator, and a well lighting. The method comprises detecting a manual unlocking or a manual opening of a landing door, activating the well lighting automatically when the controller detects a manual unlocking or a manual opening of a landing door.
    Type: Grant
    Filed: May 2, 2018
    Date of Patent: September 21, 2021
    Assignee: KONE CORPORATION
    Inventors: Ari Kattainen, Gareth Chapman, Jari Kantola, Juha-Matti Aitamurto, Jukka Lindberg, Pekka Laukkanen, Sivasamy Manokar
  • Publication number: 20210269279
    Abstract: An elevator car roof system is provided for monitoring safety of a service access located on an elevator car roof. The elevator car roof system may monitor a change in an opening state of the elevator car roof. Positions of a plurality of roof panels may indicate when the elevator car roof is partially open, fully open or fully closed. The positions of the roof panels may cause at least one sensor of the elevator car roof system to provide a signal to a control system of the elevator. Further, the elevator car roof system may detect if there is an object on the roof. Based on the detected object on the roof, the elevator car roof system may provide at least one signal to enable controlling operation of the elevator.
    Type: Application
    Filed: January 26, 2021
    Publication date: September 2, 2021
    Applicant: KONE Corporation
    Inventors: Tapani Talonen, Pekka Halonen, Jari Kantola, Tapio Siironen, Aleksi Immonen, Juha-Matti Aitamurto, Ari Jussila, Ville Myyryläinen
  • Patent number: 11097922
    Abstract: The arrangement comprises a drive driving an electric motor, a contactor and a control circuit connecting a control coil of the contactor to a power supply. The control circuit comprises a manual control part provided with a manually operated first switch, and an electronical control part provided with an electronically operated second switch and a processor controlling the second switch. The first switch and the second switch are connected in series in the control circuit with the power supply and the control coil of the contactor so that de-energization of the control coil of the contactor may be done either by the first switch or by the second switch.
    Type: Grant
    Filed: May 2, 2018
    Date of Patent: August 24, 2021
    Assignee: KONE CORPORATION
    Inventors: Ari Kattainen, Juha-Matti Aitamurto, Juhamatti Nikander, Arto Nakari
  • Publication number: 20210214188
    Abstract: A rope pulley of an elevator system is a free rotating pulley around which a hoisting rope of the elevator system can be guided. The free pulley is to be mounted to a car sling of an elevator car. The pulley includes an encoder for measuring the rotation movement of the pulley. The movement data are transmitted to a controller that converts the movement data into position data of the car in the hoistway, while further position data are gathered from identification markers that are installed in the hoistway. At least, the movement data of the rope pulley(s) are calibrated based on the position data from the identification markers. Thereby, the position of the car in the hoistway can be determined accurately and costly.
    Type: Application
    Filed: December 29, 2020
    Publication date: July 15, 2021
    Applicant: KONE Corporation
    Inventors: Henri Wenlin, Juha Panula, Oskari Perälä, Niko Forsström, Sami Janhunen, Juha-Matti Aitamurto, Tarvo Viita-aho
  • Patent number: 11043340
    Abstract: An inspection station is capable of being used under harsh conditions. The inspection station includes switch elements to which the inspection station is responsive for generating a predetermined control signal in response to actuation of a switch element. A fluid tight sealing element isolates an interior of the inspection station from an outside of the inspection station, the sealing element including one or more flexible button areas at the locations of the switch elements to provide access from the outside of the inspection station to actuate the switch elements located in the interior of the sealing element.
    Type: Grant
    Filed: September 14, 2020
    Date of Patent: June 22, 2021
    Assignee: KONE CORPORATION
    Inventors: Juha-Matti Aitamurto, Mikko Vaskela, Jukka Korpela
  • Publication number: 20210171318
    Abstract: According to an aspect, there is provided a method for remote operation of a plurality of elevators, each of the plurality of elevators being coupled with a communication computer. The method comprises receiving, by a remote service system from the communication computer, a rescue request associated with an elevator; providing, by the remote service system, a verification to distinguish the elevator associated with the rescue request among the plurality of elevators; enabling, by the remote service system, a data connection with the communication computer to control the verified elevator; and performing, by the remote service system, a remote operation associated with the verified elevator via the enabled data connection.
    Type: Application
    Filed: November 20, 2020
    Publication date: June 10, 2021
    Applicant: Kone Corporation
    Inventors: Ari KATTAINEN, Juha-Matti AITAMURTO