Patents Assigned to Otis Elevator Company
  • Patent number: 11142431
    Abstract: The present invention provides a damper of an elevator car, a control method of the damper, and an elevator system, belonging to the technical field of elevators. The damper of the present invention includes a base, a clamping mechanism mainly including two clamp arm components, a solenoid drive part, and a link transmission component, wherein the link transmission component is configured to be movable in a direction approximately perpendicular to a guide surface and drive at least one of the two clamp arm components connected thereto to move towards a guide rail. The control method of the present invention can enable the damper to work in a disengaged state, a slight contact state or a damping output state.
    Type: Grant
    Filed: January 10, 2018
    Date of Patent: October 12, 2021
    Assignee: OTIS ELEVATOR COMPANY
    Inventors: Qing Li, Kai Kang, ShengYu Wang, Xiaokai Gong, XiaoBin Tang, ZhengZong Tang, Wenbo Liu
  • Patent number: 11136222
    Abstract: Elevator systems are provided. The systems include an elevator car movable along an elevator shaft, the shaft having a pit floor and a shaft top, the elevator car having an elevator car door sill. A plurality of landings are arranged along the elevator shaft, wherein each landing has a landing door. A car apron assembly is provided that includes a car apron attached to the elevator car at the elevator car door sill, a first triggering element connected to at least one landing door, and a second triggering element operably connected to the car apron. The car apron is deployable from a stowed state to a deployed state when the first triggering element engages and actuates the second triggering element.
    Type: Grant
    Filed: July 12, 2019
    Date of Patent: October 5, 2021
    Assignee: OTIS ELEVATOR COMPANY
    Inventor: Gilles Bruno
  • Patent number: 11136217
    Abstract: Elevator access systems are provided. The elevator access systems include a bushing having a keyway, a plunger disposed within the bushing and movable relative thereto, a lever operably connected to the plunger, and a removable plug located within the keyway of the bushing, wherein the removable plug urges the plunger and the lever into a first position, and upon removal of the removable plug, the plunger and the lever move to a second position, wherein in the second position the plunger is accessible to operate the lever.
    Type: Grant
    Filed: February 28, 2019
    Date of Patent: October 5, 2021
    Assignee: OTIS ELEVATOR COMPANY
    Inventors: Guillaume Montigny, Gerard Sirigu, Sebastien Fougeron
  • Patent number: 11130655
    Abstract: A damping device for damping movement of a parked car in an elevator system includes a base plate and at least one damping assembly connected to the base plate. The damping assembly includes a flange extending from the base plate, a support member arranged at a distance from the flange, and at least one damping mechanism having a first end connected to the flange and a second end connected to the support member. The at least one damping assembly restricts movement of the support member toward the flange.
    Type: Grant
    Filed: January 2, 2019
    Date of Patent: September 28, 2021
    Assignee: OTIS ELEVATOR COMPANY
    Inventors: Randall S. Dube, Patricia Derwinski
  • Patent number: 11124387
    Abstract: The present invention provides a pull rope head fixing apparatus and an elevator system using the same, and belongs to the technical field of elevators. The pull rope head fixing apparatus of the present invention is configured to simultaneously fix rope heads of N pull ropes that are arranged in parallel, and includes: a hydraulic cylinder body configured to form a hydraulic cylinder; N first hydraulic sub-cylinders arranged in parallel on the hydraulic cylinder body and communicated with the hydraulic cylinder; and first pistons each disposed corresponding to each of the first hydraulic sub-cylinders. The pull rope head fixing apparatus of the present invention can automatically balance the tensions of multiple pull ropes fixed by it.
    Type: Grant
    Filed: October 18, 2018
    Date of Patent: September 21, 2021
    Assignee: OTIS ELEVATOR COMPANY
    Inventors: Kai Kang, Qing Li
  • Patent number: 11124384
    Abstract: A method of tension adjustment for a load bearing member of an elevator system includes measuring a load on a load bearing member of an elevator system via a load cell operably connected to the load bearing member, the load cell and the load bearing member connected to an elevator car disposed in a hoistway, the measured load equated with a tension of the load bearing member. The measured tension to a preselected range and an adjustment of the tension of the load bearing member is determined. Adjustment instructions are communicated to a handheld electronic device and the communicated adjustment instructions are performed thereby adjusting the tension of the load bearing member to within the preselected range.
    Type: Grant
    Filed: May 16, 2018
    Date of Patent: September 21, 2021
    Assignee: OTIS ELEVATOR COMPANY
    Inventor: Daniel Rush
  • Patent number: 11124389
    Abstract: A method of unlocking an elevator car door or an elevator car is provided including operating a door operator. A link arm of a car door interlock operably coupled to the door operator is rotated. If the elevator car is positioned within a landing door zone, an engagement link coupled to the link arm is configured to pivot relative to the link arm to disengage from an electrical contact. If the elevator car is not positioned within a landing door zone, the engagement link does not pivot relative to the link arm and remains engaged with the electrical contact.
    Type: Grant
    Filed: April 16, 2020
    Date of Patent: September 21, 2021
    Assignee: OTIS ELEVATOR COMPANY
    Inventors: Richard E. Kulak, Michael J. Tracey
  • Patent number: 11124386
    Abstract: An adjacent safety configuration for an elevator includes a second pair of safeties displaced from a first pair of safeties by at least 0.1 seconds of travel time at a rated speed of the elevator. An adjacent safety configuration for an elevator including a second pair of safeties displaced from the first pair of safeties to provide a predetermined time period before the second pair of safeties pass over a point on a guide rail previously passed over by the first pair of safeties to permit the guide rail surface to decrease by a predetermined temperature. A method of spacing an adjacent safety configuration for an elevator system including de-rating a pair of trailing safeties with respect to a pair of leading safeties as a function of a rated speed of the elevator and a spacing between the pair of trailing safeties and the pair of leading safeties.
    Type: Grant
    Filed: August 23, 2016
    Date of Patent: September 21, 2021
    Assignee: OTIS ELEVATOR COMPANY
    Inventors: Richard N. Fargo, Duan Liang, Tahany Ibrahim El-Wardany, James M. Draper, Xiaodong Luo, Joe J. Liou
  • Patent number: 11124385
    Abstract: Elevator access systems and methods including a key extension having a first portion arranged to engage with a key and a second portion and an access mechanism. The access mechanism includes an extension engagement element arranged to receive and fixedly engage with the second portion of the key extension and an opening element operably connected to the extension engagement element such that operation of the extension engagement element causes operation of the opening element.
    Type: Grant
    Filed: November 6, 2018
    Date of Patent: September 21, 2021
    Assignee: OTIS ELEVATOR COMPANY
    Inventors: Valerie Mauguen, Sebastien Fougeron, Gerard Sirigu
  • Patent number: 11124390
    Abstract: A pressure sensitive mat is provided. The pressure sensitive mat includes a nanocomposite film, a first conductive foil, an oxide layer interposed between a first side of the nanocomposite film and the first conductive foil, a second conductive foil and a nanotube film interposed between a second side of the nanocomposite film, which is opposite the first side, and the second conductive foil.
    Type: Grant
    Filed: May 22, 2018
    Date of Patent: September 21, 2021
    Assignee: OTIS ELEVATOR COMPANY
    Inventors: Fanping Sun, Joseph V. Mantese, Walter Thomas Schmidt, Enrico Manes, Goran Djuknic, Paul R. Braunwart, Wayde R. Schmidt
  • Patent number: 11117787
    Abstract: An illustrative example embodiment of elevator sheave liner includes a rigid central portion made of a first material and a resilient outer portion made of a second material. The central portion defines a traction surface that is configured to receive an elevator tension member. The outer portion defines an engagement surface that is configured to secure the sheave liner to an elevator sheave.
    Type: Grant
    Filed: July 22, 2019
    Date of Patent: September 14, 2021
    Assignee: OTIS ELEVATOR COMPANY
    Inventor: Kyle B. Martin
  • Patent number: 11117781
    Abstract: A vertical bounce detection system of an elevator system includes at least one sensor operable to detect vertical movement of an elevator car in a hoistway. The vertical bounce detection system also includes a processing system communicatively coupled to the at least one sensor and a memory system having instructions stored thereon that, when executed by the processing system, cause the vertical bounce detection system to determine a bounce energy level of the elevator car based on sensor data from the at least one sensor. The instructions further cause the vertical bounce detection system to compare the bounce energy level to a bounce condition threshold. A speed reduction of the elevator car is commanded to continue movement of the elevator car at a reduced speed based on determining that the bounce energy level exceeds the bounce condition threshold.
    Type: Grant
    Filed: May 2, 2018
    Date of Patent: September 14, 2021
    Assignee: OTIS ELEVATOR COMPANY
    Inventors: Marcin Wroblewski, Daryl J. Marvin
  • Patent number: 11117784
    Abstract: A belt for an elevator system includes a plurality of tension members arranged along a belt width and extending longitudinally along a length of the belt. Each tension member includes a plurality of first fibers, and a plurality of second fibers different from the first fibers dispersed into the first fibers. A jacket material at least partially encapsulates the plurality of tension members. An elevator system includes a hoistway, an elevator car located in the hoistway and movable therein, and a belt operably connected to the elevator car to suspend and/or drive the elevator car along the hoistway. The belt includes a plurality of tension members arranged along a belt width and extending longitudinally along a length of the belt. Each tension member includes a plurality of first fibers and a plurality of second fibers different from the first fibers dispersed into the first fibers.
    Type: Grant
    Filed: April 20, 2018
    Date of Patent: September 14, 2021
    Assignee: OTIS ELEVATOR COMPANY
    Inventors: Wenping Zhao, Daniel A. Mosher, Chen Qian Zhao
  • Patent number: 11117786
    Abstract: An illustrative example elevator assembly includes a header beam and a first elevator cab supported by the header beam. A plurality of vertically oriented rods extend beneath the first elevator cab. A horizontally oriented mid-beam is coupled to a first one of the rods near a first end of the mid-beam and coupled to a second one of the rods near a second end of the mid-beam. A second elevator cab is situated beneath the first elevator cab and beneath the mid-beam. At least one linear actuator is supported at least partially on the mid-beam. The linear actuator selectively causes vertical movement of the second elevator cab relative to the rods.
    Type: Grant
    Filed: January 15, 2018
    Date of Patent: September 14, 2021
    Assignee: OTIS ELEVATOR COMPANY
    Inventors: Zaffir A. Chaudhry, Enrico Manes, Walter Thomas Schmidt
  • Patent number: 11111105
    Abstract: A termination device for a suspension member of an elevator system includes a housing and a wedge assembly located in the housing. The wedge assembly includes a wedge interactive with the housing to apply a clamping force to the suspension member in response to an axial load acting on the suspension member and a compliant shear element secured to the wedge or the suspension member and configured to reduce shear loads on the suspension member.
    Type: Grant
    Filed: January 26, 2017
    Date of Patent: September 7, 2021
    Assignee: OTIS ELEVATOR COMPANY
    Inventors: Walter Thomas Schmidt, Joseph C. Rampone, Daniel A. Mosher
  • Patent number: 11111108
    Abstract: An elevator sheave includes a sheave body and a coating on a surface of the sheave body. The coating includes microcracks and a filler in the microcracks. A method of making a sheave for an elevator system is also disclosed.
    Type: Grant
    Filed: May 4, 2018
    Date of Patent: September 7, 2021
    Assignee: OTIS ELEVATOR COMPANY
    Inventors: Xiaoyuan Chang, David R. Torlai
  • Patent number: 11104549
    Abstract: A machine assembly for use in an elevator system includes a support structure having a first end connected to an adjacent support member and a second end supported by at least one car guide rail. The support structure is arranged generally perpendicular to the support member and is configured to receive at least one component of the elevator system.
    Type: Grant
    Filed: November 25, 2015
    Date of Patent: August 31, 2021
    Assignee: OTIS ELEVATOR COMPANY
    Inventors: Jean-Emile Rocher, Pascal Rebillard, Bi Xiong
  • Patent number: 11104550
    Abstract: An elevator car (6) defining an interior space (12) for accommodating passengers comprises a support frame (22) positioned on a top side of the interior space (12); a support structure (30) pivotably mounted to the support frame (22); and a working platform (28) pivotably mounted to the support structure (30). The support structure (30) is pivotable with respect to the support frame (22) and the working platform (28) is pivotable with respect to the support structure (30) between a retracted position, in which the working platform (28) and the support structure (30) are oriented close to the support frame (22), and a deployed position, in which the support structure (30) extends away from the support frame (22) towards the interior space (12) and the working platform (28) extends away from the support structure (30).
    Type: Grant
    Filed: February 25, 2019
    Date of Patent: August 31, 2021
    Assignee: OTIS ELEVATOR COMPANY
    Inventors: Juan Jose Fernandez, Juan Quiles, Agustin Jimenez-Gonzalez
  • Patent number: 11104545
    Abstract: Elevator systems are provided. The elevator systems include a traveling component movable along a guide rail within an elevator shaft, the traveling component comprising a roller guide moveably engageable with the guide rail and an overspeed safety system. The overspeed safety system includes an actuator module operably coupled to the roller guide and a safety brake operably connected to the actuator module by a connecting link, wherein a safety brake element of the safety brake is operable to engage with the guide rail to stop movement of the traveling component.
    Type: Grant
    Filed: December 10, 2018
    Date of Patent: August 31, 2021
    Assignee: OTIS ELEVATOR COMPANY
    Inventor: Lifeng Chao
  • Patent number: D931868
    Type: Grant
    Filed: May 7, 2018
    Date of Patent: September 28, 2021
    Assignee: OTIS ELEVATOR COMPANY
    Inventors: Harrison Daniels, Antoine Veliz, Phi-Hong Ha, Jason K. Smith