公开(公告)号：US20170073189A1

公开(公告)日：2017-03-16

申请号：US15262382

申请日：2016-09-12

Applicant: Otis Elevator Company

Inventor： Randall S. Dube

IPC: B66B5/04 ,  B66B5/18 ,  B66B9/00

CPC classification number: B66B5/044 ,  B66B5/18 ,  B66B9/00 ,  B66B11/004

Abstract: An elevator governor rotor comprises a central axis and a plurality of pairs of lobes. Each pair of lobes comprises an inner lobe and an outer lobe.

Abstract translation: 电梯调速器转子包括中心轴线和多对叶片。 每对裂片包括一个内瓣和一个外叶。

公开(公告)号：US11542122B2

公开(公告)日：2023-01-03

申请号：US17483184

申请日：2021-09-23

Applicant: OTIS ELEVATOR COMPANY

Inventor： Randall S. Dube ,  Aayush Desai

IPC: B66B5/04 ,  B66B5/24

Abstract: A method of remotely tripping an overspeed assembly of a governor assembly includes generating a signal to indicate remote trip, applying power to an actuator, contacting a tripping lever with a movable member operably coupled to the actuator to rotate the tripping lever out of contact with an adjacent swing jaw, and biasing the swing jaw into contact with a ratchet disc capable of limited rotation in response to the tripping lever.

公开(公告)号：US11155440B2

公开(公告)日：2021-10-26

申请号：US16653284

申请日：2019-10-15

Applicant: OTIS ELEVATOR COMPANY

Inventor： Randall S. Dube ,  Aayush Desai

IPC: B66B5/04 ,  B66B5/24

Abstract: A governor assembly is provided including a sheave rotatably mounted on a shaft and a ratchet disc mounted on the shaft. Rotation of the ratchet disc is restricted. An overspeed assembly includes a swing jaw mounted to the sheave. The swing jaw is movable between a normal position and a tripped position. The swing jaw is biased into the tripped position. When the swing jaw is in the tripped position, rotation of the sheave in a first direction is restricted. A tripping lever is pivotally mounted to the sheave and is configured to cooperate with the swing jaw. Rotation of the sheave in a second, opposite direction is configured to automatically move the swing jaw against its bias to the normal position.

公开(公告)号：US11040852B2

公开(公告)日：2021-06-22

申请号：US15967785

申请日：2018-05-01

Applicant: OTIS ELEVATOR COMPANY

Inventor： Randall S. Dube

IPC: B66B5/00 ,  B66B1/30 ,  B66B1/32 ,  B66B3/00 ,  B66B5/04 ,  B66B9/00

Abstract: An illustrative example elevator system includes an elevator car, a machine that selectively causes movement of the elevator car, and a drive that controls the machine to control movement of the elevator car at an intended elevator car speed. The drive is configured to use information regarding operation of the machine to determine whether an abnormal passenger behavior (APB) condition exists that affects movement of the elevator car. The drive is configured to alter the elevator car speed when the APB condition exists.

公开(公告)号：US10968077B2

公开(公告)日：2021-04-06

申请号：US16040361

申请日：2018-07-19

Applicant: Otis Elevator Company

Inventor： Randall S. Dube

IPC: B66B5/04 ,  B66B5/18

Abstract: An overspeed assembly for use with a governor assembly for limiting of an elevator system, the overspeed assembly includes a rod movable relative to the governor assembly in response to a speed of an elevator car and a pin coupled to the rod. The pin is movable between a first position and a second position based on a direction of travel of the elevator car. The pin is configured to engage a first component to indicate a first overspeed condition when the elevator car is travelling in a first direction and the pin is configured to engage a second component to indicate a second overspeed condition when the elevator car is travelling in a second, opposite direction.

公开(公告)号：US10759631B2

公开(公告)日：2020-09-01

申请号：US15794306

申请日：2017-10-26

Applicant: Otis Elevator Company

Inventor： Zhengbao Shi ,  Randall S. Dube ,  Yong Zhao ,  Min Wang

IPC: B66B5/04

Abstract: The present invention provides a remote trigger device, a speed limiter assembly having the same and an elevator. The remote trigger device for the speed limiter assembly comprises: an actuator; and a rotating component, the rotating component being capable of rotating around a rotating axis in a rotating plane, the rotating component being actuated by the actuator to rotate from an idle position to a working position. During rotation of the speed limiter assembly, at the idle position, the rotating component is kept separated from an over-speed locking mechanism of the speed limiter assembly, and at the working position, the rotating component toggles a trigger member of the over-speed locking mechanism of the speed limiter assembly to trigger the speed limiter assembly. The structure of the remote trigger device according to the present invention is compact and simple.

公开(公告)号：US10472209B2

公开(公告)日：2019-11-12

申请号：US15398358

申请日：2017-01-04

Applicant: OTIS ELEVATOR COMPANY

Inventor： Randall S. Dube ,  Aayush Desai

IPC: B66B5/04 ,  B66B5/24

Abstract: A governor assembly is provided including a sheave rotatably mounted on a shaft and a ratchet disc mounted on the shaft. Rotation of the ratchet disc is restricted. An overspeed assembly includes a swing jaw mounted to the sheave. The swing jaw is movable between a normal position and a tripped position. The swing jaw is biased into the tripped position. When the swing jaw is in the tripped position, rotation of the sheave in a first direction is restricted. A tripping lever is pivotally mounted to the sheave and is configured to cooperate with the swing jaw. Rotation of the sheave in a second, opposite direction is configured to automatically move the swing jaw against its bias to the normal position.

公开(公告)号：US20190300331A1

公开(公告)日：2019-10-03

申请号：US15966929

申请日：2018-04-30

Applicant: OTIS ELEVATOR COMPANY

Inventor： Sandeep Sudi ,  Joseph Crute ,  Arthur T. Grondine ,  Randall S. Dube ,  Daryl J. Marvin

IPC: B66B1/32 ,  B66B5/06 ,  B66B5/04

Abstract: A method of avoiding unnecessary safety brake actuation in an elevator system. The method includes determining whether a true overspeed or overacceleration condition of an elevator car is present. The method also includes activating the electronic safety actuator if a true overspeed or overacceleration condition of the elevator car.

公开(公告)号：US10214385B2

公开(公告)日：2019-02-26

申请号：US15415378

申请日：2017-01-25

Applicant: Otis Elevator Company

Inventor： Scott Alan Eastman ,  Brad Guilani ,  Chen Qian Zhao ,  Randall S. Dube

IPC: F16D69/00 ,  B66B5/22 ,  B22D25/02 ,  B33Y10/00 ,  B33Y80/00 ,  B29C45/14 ,  B29C43/18 ,  B29K705/00 ,  B29L31/16

Abstract: An elevator brake wedge is provided and includes an elongate body having first and second generally opposed major surfaces and first and second generally opposed minor surfaces. The second minor surface has a greater length than the first minor surface. Each of the first and second major surfaces extends between corresponding first and second ends of the first and second minor surfaces, respectively. The second major surface defines low-friction film securing grooves extending from a plane of the second major surface into the elongate body.

公开(公告)号：US10112802B2

公开(公告)日：2018-10-30

申请号：US15419680

申请日：2017-01-30

Applicant: Otis Elevator Company

Inventor： Randall S. Dube

IPC: B66B5/00

Abstract: According to one embodiment, an elevator car collision protection system is provided. The collision protection system comprising: a first antenna configured to be worn by a person entering a hoistway; a first trio of transceivers located a first selected distance away from a first impact wall of the hoistway, the first trio of transceivers being configured to detect a first clearance between an elevator car within the hoistway and the first trio of transceivers and a second clearance between the first antenna and the first trio of transceivers; and an alarm configured to activate when a collision risk level exceeds a selected risk level, wherein the collision risk level is determined in response to the first clearance and the second clearance.