Patents Assigned to Otis Elevator Company
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Patent number: 11673767Abstract: An elevator system 2 is provided which comprises: a hoistway 6 accessible by at least one hoistway door 10a, 10b, 10c; at least one elevator car 4 located in the hoistway 6; a hoistway door switch 12a, 12b, 12c associated with the at least one hoistway door 10a, 10b, 10c; at least one inspection switch 16; at least one emergency stop switch 18; and an elevator controller 24. The elevator controller 24 is configured to monitor the hoistway door switch 12a, 12b, 12c, the inspection switch 16 and the emergency stop switch 18 and to prevent inspection mode operation of the elevator car 4 until at least one change of state is detected of each of the hoistway door switch 12a, 12b, 12c, the inspection switch 16 and the emergency stop switch 18.Type: GrantFiled: April 15, 2020Date of Patent: June 13, 2023Assignee: OTIS ELEVATOR COMPANYInventors: Ralph S. Stripling, Sven Knuth
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Patent number: 11673770Abstract: An illustrative example embodiment of an elevator governor includes a rotatable governor mechanism, a tension sheave, and a tension frame associated with the tension sheave. The tension frame has a mass configured to bias the tension frame and the tension sheave under an influence of gravity. A damper is configured to resist vertical movement of the tension frame relative to a fixed surface in a first condition and to allow vertical movement of the tension frame relative to the fixed surface in a second, different condition.Type: GrantFiled: June 25, 2021Date of Patent: June 13, 2023Assignee: OTIS ELEVATOR COMPANYInventor: Richard L. Hollowell
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Patent number: 11673774Abstract: An elevator system and a support column assembly. The elevator system includes a support column, with the bottom end thereof connected to a bottom mounting base, and the top end thereof connected to a top mounting base; a counterweight arranged in the support column; a car having a through hole penetrating in a vertical direction, wherein the car is arranged around the support column via the through hole; and a traction assembly, wherein the car is connected to the counterweight via the traction assembly, and the car and the counterweight reciprocate along the length direction of the support column under the traction of the traction assembly.Type: GrantFiled: July 26, 2021Date of Patent: June 13, 2023Assignee: OTIS ELEVATOR COMPANYInventors: Zhe Zhang, Hong Fu, Zhixue Li
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Patent number: 11673769Abstract: An illustrative example embodiment of an elevator system includes a machine including a motor and a brake. The machine is configured to selectively cause movement of an elevator car. At least one vibration sensor situated near the machine provides an indication of operation of the machine to indicate at least stops and starts of the machine associated with stopping and starting movement of the elevator car.Type: GrantFiled: August 21, 2018Date of Patent: June 13, 2023Assignee: OTIS ELEVATOR COMPANYInventors: Sandeep Sudi, Michael C. Lang, Martin J. Hardesty
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Patent number: 11673768Abstract: Disclosed is an elevator inspection system, the system having: a robotic platform configured to inspect a hoistway; a platform propulsor operationally connected to the robotic platform; and a controller operationally connected to the platform propulsor, wherein the controller is configured to control the platform propulsor to propel the robotic platform vertically within the hoistway.Type: GrantFiled: March 16, 2020Date of Patent: June 13, 2023Assignee: OTIS ELEVATOR COMPANYInventors: Tadeusz Pawel Witczak, Joseph Crute
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Patent number: 11667496Abstract: A roller system, a roller brake device and an elevator system. The roller brake device is used for the roller system. The elevator system includes the roller system. The roller system comprises a roller assembly and a roller brake device, the roller brake device includes: a body, the roller brake device is mounted to the roller assembly by the body; an actuation device mounted to the body; and a brake connected to the body in a pivotable manner, and the actuation device can move the brake from a rest position to a brake position, wherein the brake engages and brakes a roller in the roller assembly at the brake position, and the brake is disengaged from the roller at the rest position.Type: GrantFiled: August 2, 2021Date of Patent: June 6, 2023Assignee: OTIS ELEVATOR COMPANYInventors: BiChun Li, ShenHong Wang
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Patent number: 11667495Abstract: A brake disc release device, a turning device, and an elevator rescue package and method. The brake disc release device comprises: an actuating mechanism; a gear connected to a first end of the actuating mechanism; a first slider capable of sliding along a first guide piece and comprising a rack portion for engagement with the gear and a first wedge portion; a second slider capable of sliding along a second guide piece and comprising a second wedge portion for engagement with the first wedge portion of the first slider; and a pulling cable having a first end connected to the second slider and a second end connected to the brake disc.Type: GrantFiled: May 2, 2019Date of Patent: June 6, 2023Assignee: OTIS ELEVATOR COMPANYInventors: FengKun Zhu, Hongliang Wu, James L. Hubbard
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Patent number: 11667493Abstract: An elevator system is provided. Aspects includes an elevator car, a sensor affixed to the elevator car, wherein the sensor is operated by a controller, the controller is configured to receive occupancy data associated with the elevator car. The occupancy data is analyzed to determine an occupancy of the elevator car. A first hall call is received and based at least in part on the occupancy and the first hall call, adjusting operation of the elevator car in the elevator system.Type: GrantFiled: March 19, 2019Date of Patent: June 6, 2023Assignee: OTIS ELEVATOR COMPANYInventors: Jayapal Reddy Gireddy, Ashok Chikkur
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Patent number: 11670961Abstract: According to a wireless power transfer system for wirelessly powering a conveyance apparatus of a conveyance system including: a wireless electrical power transmitter located along a side of the conveyance system in a first location; a power management system configured to control operation of the wireless electrical power transmitter; a wireless electrical power receiver located along a surface of the conveyance apparatus opposite the side; an energy storage device configured to receive electrical power from the wireless electrical power receiver; an energy storage device management system configured to monitor data of the energy storage device and the conveyance apparatus, the energy storage device management system being in wireless communication with the power management system, wherein the energy storage device management system is configured to transmit the data to the power management system and the power management system adjusts operation of the wireless electrical power transmitter in response to thType: GrantFiled: December 9, 2019Date of Patent: June 6, 2023Assignee: OTIS ELEVATOR COMPANYInventors: Enrico Manes, Suman Dwari, Stephen Savulak, Goran Djuknic
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Patent number: 11667497Abstract: An illustrative example embodiment of an elevator includes an elevator car and a drive mechanism connected with the elevator car. The drive mechanism moves with the elevator car in a vertical direction. The drive mechanism includes drive members that are configured to engage surfaces associated with walls near opposite sides of the elevator car, climb along the surfaces to selectively cause movement of the elevator car, and selectively prevent movement of the elevator car when the drive members remain in a selected position relative to the wall.Type: GrantFiled: November 4, 2020Date of Patent: June 6, 2023Assignee: OTIS ELEVATOR COMPANYInventor: Kiron Bhaskar
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Patent number: 11667498Abstract: A system including one or more processors, one or more non-transitory storage mediums, a data file, and executable instructions. The processor is configured to receive a door close signal from a door close selector and a door open signal from at least one of a door open selector and a door obstructed sensor. The data file is stored in the non-transitory storage medium and includes a door open time duration associated with at least one of the door open signal and the door close signal. The executable instructions are stored in the non-transitory storage medium and is executed by the processor. The executable instructions are configured to generate the door open time duration based on at least one of the door open signal and the door close signal. The processor is configured to output a door open command based, at least in-part, on the door open time duration.Type: GrantFiled: June 28, 2019Date of Patent: June 6, 2023Assignee: OTIS ELEVATOR COMPANYInventors: Abhinav Dhar, Amit Keshri
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Patent number: 11661309Abstract: The present invention relates to the guidance for a passenger to enter a correct elevator car, belonging to the field of elevator intelligent control technologies. In a method for guiding a passenger to enter a correct elevator car provided in the present invention, the movement of the passenger relative to one of a plurality of elevator cars is determined based on a change in the signal strength of a received first wireless signal; and whether the movement is a movement corresponding to entering a correct elevator car is judged based on a recognition result. The present invention can realize that a passenger is automatically guided to enter a correct elevator car by means of the change in a vibration signal and/or a voice prompt signal.Type: GrantFiled: July 19, 2018Date of Patent: May 30, 2023Assignee: OTIS ELEVATOR COMPANYInventors: Adriaan Joris H. Larmuseau, Changle Li
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Patent number: 11661312Abstract: According to one embodiment, a method for monitoring hoisting ropes in an elevator system comprises measuring tension of each hoisting rope, calculating a mean value of the tension in the hoisting ropes, determining if the tension in any rope is significantly higher than the mean value and providing a signal that rope snag has been detected if the tension in any rope is significantly higher than the mean value.Type: GrantFiled: January 29, 2019Date of Patent: May 30, 2023Assignee: OTIS ELEVATOR COMPANYInventor: Jiro Murata
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Patent number: 11661315Abstract: A sill gap monitoring system includes a sensor assembly configured to sense a sill gap between an elevator sill and at least one of a bottom surface of an elevator door and a bottom surface of a gib. The sill gap monitoring system generates an alert when the sill gap is greater than a sill gap limit.Type: GrantFiled: January 14, 2020Date of Patent: May 30, 2023Assignee: OTIS ELEVATOR COMPANYInventors: Richard E. Kulak, Michael J. Tracey
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Patent number: 11661311Abstract: An elevator system (2) comprises an elevator car (10) configured for traveling along a hoistway (4) between a plurality of landings (8); and at least one passenger sensor (20) provided at least one of the landings (8). The at least one passenger sensor (20) is configured for detecting passengers (26) being present within a predefined detection zone (28) at the respective landing (8) by detecting a detection signal (30b) reflected by a reflecting building structure (22, 24) of the respective landing (8), and for providing a corresponding sensor signal.Type: GrantFiled: September 26, 2019Date of Patent: May 30, 2023Assignee: OTIS ELEVATOR COMPANYInventor: Derk Pahlke
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Patent number: 11661306Abstract: An elevator system includes an elevator car; a guide rail; and a linear synchronous reluctance motor including: a primary circuit having a plurality of primary poles and windings about the primary poles; a secondary circuit having a plurality of secondary poles; the primary circuit coupled to one of the elevator car and the guide rail, the secondary circuit coupled to the other of the elevator car and the guide rail.Type: GrantFiled: August 22, 2018Date of Patent: May 30, 2023Assignee: OTIS ELEVATOR COMPANYInventor: Richard N. Fargo
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Patent number: 11661307Abstract: An aspect includes capturing crowd data associated with a lobby area of an elevator system. A dispatching schedule of one or more elevator cars of the elevator system is adjusted based on the crowd data. A notification of the adjustment to the dispatching schedule is output.Type: GrantFiled: April 1, 2019Date of Patent: May 30, 2023Assignee: OTIS ELEVATOR COMPANYInventors: Sandeep Sudi, Bradley Armand Scoville
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Patent number: 11655121Abstract: An elevator car includes a car floor; a movable ceiling, which is pivotable between a normal operating position, in which the movable ceiling extends substantially horizontally and a maintenance position, in which the movable ceiling extends into an interior space of the elevator car; a working platform movably attached to the movable ceiling. The working platform is pivotable between a storage position, in which the working platform extends basically parallel to the movable ceiling, and a working position, in which the working platform extends transversely from the movable ceiling; and at least one foldable leg attached to the working platform. The at least one foldable leg is foldable between a storage configuration, in which the at least one foldable leg extends substantially parallel to the working platform, and a working configuration, in which the at least one foldable leg extends transversely from the working platform for supporting the working platform.Type: GrantFiled: November 6, 2020Date of Patent: May 23, 2023Assignee: OTIS ELEVATOR COMPANYInventors: Michael Fever, Nawel Bettaieb, Alper Caliskan, Herve Senejoux
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Patent number: 11655122Abstract: An illustrative example elevator door interlock includes a first base configured to be supported on a hoistway door component, The first base is situated to be selectively pivoted relative to the hoistway door component. A first bumper is supported on the first base such that pivotal movement of the first base changes a position of the first bumper relative to the hoistway door component. A second base is situated to be selectively moved relative to the hoistway door component. A second bumper is supported on the second base such that selective movement of the second base changes a position of the second bumper relative to the hoistway door component. A latch is situated for pivotal movement about a pivot axis relative to the first base between a door locking position and a released position.Type: GrantFiled: May 10, 2021Date of Patent: May 23, 2023Assignee: OTIS ELEVATOR COMPANYInventors: Michael J. Tracey, Richard E. Kulak
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Patent number: 11655120Abstract: An illustrative example embodiment of an elevator load bearing member includes a unidirectional weave of a plurality of load bearing fibers including at least a first material and a second material. A melting point of the first material is higher than a melting point of the second material. The plurality of load bearing fibers are bonded together by at least some of the second material that is at least partially melted. A coating covers the plurality of load bearing fibers.Type: GrantFiled: June 28, 2019Date of Patent: May 23, 2023Assignee: OTIS ELEVATOR COMPANYInventors: Chen Qian Zhao, Kyle B. Martin