Patents Assigned to Otis Elevator Company
  • Patent number: 11873193
    Abstract: Elevator systems include an elevator car configured to travel along an elevator shaft, the elevator car having a car door and a car sill. One or more landings are arranged along the elevator shaft, the landings each having a landing door and a landing sill. An elevator coupling is provided that includes a car door coupling operably coupled to the car door and a landing door coupling operably coupled to the landing door. The car door coupling and the landing door coupling are selectively operable to drive operation of the car door and the landing door simultaneously and a sill gap between the car sill and the landing sill is less than 25 mm.
    Type: Grant
    Filed: January 20, 2023
    Date of Patent: January 16, 2024
    Assignee: OTIS ELEVATOR COMPANY
    Inventor: Wei Wei
  • Patent number: 11873191
    Abstract: An illustrative example embodiment of an elevator propulsion device includes at least one drive member configured to engage and climb along a vertical structure, a motor module including at least one motor configured to cause movement of the drive member and corresponding movement of an elevator cab, and a power supply including at least one energy source that is configured to provide power to the motor. The power supply is situated adjacent the motor module such that a mass of the at least one energy source provides a noise barrier to reduce transmission of noise from the motor into the elevator cab.
    Type: Grant
    Filed: August 31, 2020
    Date of Patent: January 16, 2024
    Assignee: OTIS ELEVATOR COMPANY
    Inventor: George Scott Copeland
  • Patent number: 11866298
    Abstract: An elevator counterweight assembly (11) includes a counterweight structure (38), at least one safety brake (12a, 12b) mounted on the counterweight structure (38), and a safety actuation mechanism (16) including a connection (17) for a suspension member (18). The safety actuation mechanism (16) is configured to move, relative to the counterweight structure (38), between a normal position, and a safety position. In the safety position the safety actuation mechanism (16) is arranged to actuate the at least one safety brake (12a, 12b) and thereby brake the counterweight structure (38). The counterweight assembly (11) also includes a mechanical actuator (22), configured, when actuated, to apply a force to the safety actuation mechanism (16) and thereby move the safety actuation mechanism (16) from the normal position to the safety position, e.g. for the purposes of a handover test.
    Type: Grant
    Filed: December 23, 2020
    Date of Patent: January 9, 2024
    Assignee: OTIS ELEVATOR COMPANY
    Inventors: Aurelien Fauconnet, Franck Rivoiret
  • Patent number: 11866300
    Abstract: A tension member for a lifting and/or hoisting system includes a core including a plurality of load carrying fibers arranged in a matrix material, and an outer layer secured to the core including a plurality of outer fibers arranged around a perimeter of the core. The outer layer includes one or more outer fibers arranged off-axis relative to the load carrying fibers of the core. A method of forming a tension member for an elevator system includes arranging a plurality of load carrying fibers along a length of the tension member, retaining the plurality of load carrying fibers in a matrix material to define a core, and enclosing the core in an outer layer including a plurality of outer fibers arranged around a perimeter of the core. The outer layer includes one or more outer fibers arranged off-axis relative to the load carrying fibers of the core.
    Type: Grant
    Filed: December 1, 2017
    Date of Patent: January 9, 2024
    Assignee: OTIS ELEVATOR COMPANY
    Inventors: Scott Alan Eastman, Daniel A. Mosher, Wenping Zhao
  • Patent number: 11866295
    Abstract: An elevator system control system is provided and includes a sensor system configured to sense elevator car conditions, a safety system signaling element to generate a safety signal indicative of an incident and a control system configured to react to the safety system signal. When the control system receives the safety signal indicating that an incident has occurred that requires engagement of at least one of primary and secondary brakes, the control system controls a deceleration rate during the incident by operating the primary brake, determining whether the deceleration rate is within a target range and adjusting the deceleration rate based on signals from the sensor system.
    Type: Grant
    Filed: August 20, 2018
    Date of Patent: January 9, 2024
    Assignee: OTIS ELEVATOR COMPANY
    Inventors: Prasanna Nagarajan, David Ginsberg, Shashank Krishnamurthy, Daryl J. Marvin, Ronnie E. Thebeau
  • Patent number: 11858780
    Abstract: A governor assembly, an elevator safety device, and an elevator system. The governor assembly includes: a bracket; a rotatable rope sheave mounted on the bracket; and a centrifugal mechanism associated with the rope sheave, a plurality of centrifugal members being capable of unfolding under an inertial force associated with the speed of the rope sheave; the centrifugal mechanism includes: a plurality of centrifugal members pivotally connected to the rope sheave; and a retaining mechanism by which the plurality of centrifugal members are retained in a contraction position; the retaining mechanism is configured to retain the plurality of centrifugal members in the contraction position when the speed of the rope sheave increases to a first threshold with an acceleration smaller than a first acceleration.
    Type: Grant
    Filed: November 17, 2022
    Date of Patent: January 2, 2024
    Assignee: OTIS ELEVATOR COMPANY
    Inventors: Wei Wang, Decheng Meng, Yong Zhao
  • Patent number: 11858777
    Abstract: An elevator car includes one or more sidewalls defining an interior space for accommodating passengers; and an electrical box (25) mounted to a sidewall by a mount (30). The mount (30) is arranged to allow the electrical box (25) to vertically translate between a first position and a second position relative to the sidewall.
    Type: Grant
    Filed: November 3, 2022
    Date of Patent: January 2, 2024
    Assignee: OTIS ELEVATOR COMPANY
    Inventors: Aurelien Fauconnet, Franck Rivoiret, Fabrice Boniface, Morgane Appourchaux
  • Patent number: 11858781
    Abstract: A frictionless electronic safety actuator (100) for use in an elevator system, which includes at least one electromagnet (110), and a magnetic plate (120) attached to a connection arrangement (190). The connection arrangement (190) is configured to connect the magnetic plate (120; 220) to a linkage (80) that is actuatable so as to move a safety brake (24) into frictional engagement with an elevator guide rail (20). The at least one electromagnet (110) is operable to selectively produce a magnetic force which acts upon the magnetic plate (120) to displace the magnetic plate (120) and thereby move the connection arrangement (190) to actuate the linkage (80) without the magnetic plate (120) coming into frictional engagement with the elevator guide rail (20).
    Type: Grant
    Filed: July 1, 2022
    Date of Patent: January 2, 2024
    Assignee: OTIS ELEVATOR COMPANY
    Inventors: Yu Pu, Yingxin Gao, Ruben Marante-Chasco
  • Patent number: 11851305
    Abstract: A method of operating a safety net system of an elevator system is provided. The method includes installing a sensor in an elevator pit of the elevator system and executing a learning phase of the sensor to verify successful installation of the sensor. The executing of the learning phase includes causing the sensor to sense physical characteristics of a portion of the elevator pit when the elevator pit is known to have certain physical characteristics to generate a background reading, comparing the background reading against a reading associated with known physical characteristics of the portion of the elevator pit and verifying the successful installation of the sensor based on results of the comparing.
    Type: Grant
    Filed: June 12, 2023
    Date of Patent: December 26, 2023
    Assignee: OTIS ELEVATOR COMPANY
    Inventors: Randy Roberts, Johanna Whitwell, Craig Drew Bogli, Kyler Vensel
  • Patent number: 11845635
    Abstract: An elevator system (2) comprising a hoistway (4), an elevator car (6) and a counterweight (8) arranged to move within the hoistway (4). The system (2) further includes a first counterweight guide rail and a second counterweight guide rail arranged to guide the counterweight within the hoistway (4) and a guide rail bracket (32) which connects the first and second counterweight guide rails together. An elevator machine (10) is arranged to drive a tension member (14), which couples the elevator car (6) and counterweight together (8), to move the elevator car (6) within the hoistway (4). The system (2) further includes a friction reducing element (36) arranged on the guide rail bracket (32) such that if the tension member (14) moves towards the guide rail bracket (32) during operation of the elevator system (2), the tension member (14) contacts the friction reducing element (36).
    Type: Grant
    Filed: June 2, 2022
    Date of Patent: December 19, 2023
    Assignee: OTIS ELEVATOR COMPANY
    Inventors: Bi Xiong, Vincent Lopez
  • Patent number: 11845634
    Abstract: A safety brake device, for use in a conveyance system including a guide rail and a component moveable along the guide rail, comprises a safety brake moveable between a non-braking position where the safety brake is not in engagement with the guide rail and a braking position where the safety brake is engaged with the guide rail. The safety brake device also comprises an actuator for the safety brake, and the actuator comprises a mounting portion for mounting the actuator to the component, a pad arranged to be moveable relative to the mounting portion between a first position spaced from the guide rail and a second position in contact with the guide rail, and at least one biasing member configured to apply a biasing force to move the pad from the first position to the second position.
    Type: Grant
    Filed: July 29, 2021
    Date of Patent: December 19, 2023
    Assignee: OTIS ELEVATOR COMPANY
    Inventors: Javier Munoz Sotoca, Ruben Marante-Chasco
  • Patent number: 11845631
    Abstract: A synchronizing assembly for elevator door configured to synchronously open and close a first door and a second door from the center of an elevator in responsive to the movement of a belt in a first direction and a second direction. The synchronizing assembly includes a first link extending from a first end to a second end and configured to pivot about a first pivot between the first end and the second end, the first pivot being mounted on the first door, the first end of the first link being pivotally attached to the belt; a second link pivoting about a second pivot mounted on the first door and configured to fix the first link when the second pivot is engaging with the second end of the first link; and a force applying member configured to provide the first link with a force.
    Type: Grant
    Filed: November 6, 2020
    Date of Patent: December 19, 2023
    Assignee: OTIS ELEVATOR COMPANY
    Inventors: Zhiren Liu, Meihong Mao, Yunbin Cai, JinKoo Lee, Michael Joseph Tracey
  • Patent number: 11848154
    Abstract: Electromagnetic actuators for an elevator systems and encapsulated components thereof are described. The encapsulated components include an encapsulating body and a component assembly is arranged within the encapsulating body, wherein at least some parts of the component assembly are contained within a material of the encapsulating body.
    Type: Grant
    Filed: May 28, 2020
    Date of Patent: December 19, 2023
    Assignee: OTIS ELEVATOR COMPANY
    Inventors: Justin Billard, Brad Guilani, Daryl J. Marvin, Antonio Martins, Richard Marchetti
  • Patent number: 11840423
    Abstract: A hybrid energy storage system for an elevator car includes a converter disposed on the elevator car and receives power from a power source and provides a first DC voltage to a first DC bus and a second DC voltage to a second DC bus, a first energy storage device connected to the converter receives the first DC voltage on the first DC bus, and a second energy storage device connected to the converter receives the second DC voltage on the second DC bus. The system also includes a first load connected to the first DC bus and a second DC bus, and a second load connected to the second DC bus. Power is provided from the first energy storage device to the first load under a first selected condition and power is supplied from the second energy storage device to the first load under second selected condition.
    Type: Grant
    Filed: December 13, 2019
    Date of Patent: December 12, 2023
    Assignee: OTIS ELEVATOR COMPANY
    Inventors: Suman Dwari, Stephen Savulak, Enrico Manes, Ronnie E. Thebeau, Xin Wu
  • Patent number: 11834301
    Abstract: The present disclosure provides a guide device for an elevator car, and an elevator system. The guiding device includes: a roller guide frame; and at least one roller rotatably mounted to the roller guide frame, the roller being configured to roll on an elevator guide rail when the elevator car is moving; wherein the guiding device further includes a braking device which inhibits the rotation of the roller when activated. The device according to the embodiment of the present disclosure has a simple and compact structure.
    Type: Grant
    Filed: December 8, 2020
    Date of Patent: December 5, 2023
    Assignee: OTIS ELEVATOR COMPANY
    Inventors: Bichun Li, Shenhong Wang, Yunru Chen
  • Patent number: 11836995
    Abstract: A passenger tracking system includes a multiple of sensors for capturing depth map data of objects. A processing module in communication with the multiple of sensors to receive the depth map data, the processing module uses the depth map data to track an object and calculate passenger data associated with the tracked object to generate a passenger tracking list that tracks each individual passenger in the passenger data from an origin lobby to a destination lobby and through an in-car track between the origin lobby and the destination lobby.
    Type: Grant
    Filed: September 22, 2021
    Date of Patent: December 5, 2023
    Assignee: Otis Elevator Company
    Inventors: Feng Chen, Liu Yu, Xiangyu Wang, Zhen Jia, Hui Fang, Arthur Hsu, Alan Matthew Finn
  • Patent number: 11827491
    Abstract: Methods and systems for elevator control are provided. The methods and systems include receiving, by a computing device comprising a processor, a request for at least one service associated with an elevator system from a user device, controlling an elevator car to travel to a specific floor in accordance with the request, controlling an elevator car door to be closed upon arriving at the specific floor, transmitting an indicator to the user device that the elevator car has arrived at the specific floor, and controlling the elevator car door to open upon receiving, by the computing device, an access request from the user device.
    Type: Grant
    Filed: December 20, 2016
    Date of Patent: November 28, 2023
    Assignee: OTIS ELEVATOR COMPANY
    Inventors: Paul A Simcik, Gary Pisarsky
  • Patent number: 11827493
    Abstract: An elevator safety system and elevator equipment. The elevator safety system includes a safety unit which has a safety device and a trigger, the trigger is connected with the safety device and outputs an acting force from its output end to the safety device for actuating the safety device to perform safety operation to the elevator, the safety unit further includes a force amplifying device provided between the trigger and the safety device for amplifying the acting force output from the output end and then transmitting the amplified acting force to the safety device.
    Type: Grant
    Filed: May 31, 2022
    Date of Patent: November 28, 2023
    Assignee: OTIS ELEVATOR COMPANY
    Inventor: Wei Wang
  • Patent number: 11827494
    Abstract: A safety brake system for use in a conveyance system is provided. The safety brake system includes a guide rail and a conveyance component moveable along the guide rail. The safety brake system comprises: a safety brake moveable between a non-braking position where the safety brake is not in engagement with the guide rail and a braking position where the safety brake is engaged with the guide rail; a linkage mechanism; and an actuator for the safety brake. The actuator is configured to be mounted to the conveyance component. The actuator comprises an electromagnet switchable between a first state and a second state; and an actuation component configured to move relative to the electromagnet from a first position when the electromagnet is in the first state to a second position when the electromagnet is in the second state.
    Type: Grant
    Filed: May 31, 2022
    Date of Patent: November 28, 2023
    Assignee: OTIS ELEVATOR COMPANY
    Inventor: Jose Miguel Aguado-Martin
  • Patent number: 11827495
    Abstract: An elevator guide rail installation bracket and installation method thereof, a positioning tooling, a bracket adjustment tooling, and an elevator system. The elevator guide rail installation bracket includes a guide rail bracket having a guide rail installation surface and a first adjustment surface that form a bend, a fixed guide rail installation position is provided on the guide rail installation surface; and a hoistway bracket having a hoistway installation surface and a second adjustment surface that form a bend; the first adjustment surface is adjustably connected to the second adjustment surface to adjust the relative position between the guide rail installation surface and the hoistway installation surface.
    Type: Grant
    Filed: June 2, 2022
    Date of Patent: November 28, 2023
    Assignee: OTIS ELEVATOR COMPANY
    Inventors: Bichun Li, Qirui Wang, Gang Huang, Shenhong Wang