Otis Elevator Company

Michael J Tracey

Richard E Kulak

James A Rivera

Walter Thomas Schmidt

Jacek F Gieras

Richard N Fargo

Tadeusz Pawel Witczak

Enrico Manes

Bruce P Swaybill

Thomas M Kowalczyk

Joseph Zacchio

Pei-Yuan Peng

Patricia Derwinski

Bryan Robert Siewert

Muhidin A Lelic

Xiaodong Luo

Erik Khzouz

Leslie C Watterson

James P Towey, Jr

Norbert Antony Murray Hootsmans

Valery G Sheynkman

James Chmiel

Cuauhtemoc Castro Inzunza

Zhiren Liu

K Narasimha Reddy

Bennie J Murah

Meihong Mao

Blair J Cohen

Garnett Thompson

William L King

JinKoo Lee

Yunbin Cai

Colette Ruden

Thomas Malone

Abdelilah Sakti

Duane R Stupienski

David K Gentzler

Mark E Renzulli

A landing arrangement of an elevator system includes a plurality of landing bays, at least two landing bays of the plurality of landing bays overlapping, and a plurality of landing door sets. Each landing door set of the plurality of landing door sets corresponds to a landing bay of the plurality of landing bays. At least two landing door sets of the plurality of landing door sets are interconnected such that opening a first landing door set of the plurality of landing door sets urges the at least partial opening of a second landing door set adjacent to the first landing door set.

System and method of unlocking and opening multiple panel elevator doors

An illustrative example embodiment of an elevator door assembly includes a door panel having at least one edge. A base is configured to be received adjacent the edge of the door panel. An astragal is configured to be at least partially received over the base such that the base holds the astragal in a selected position aligned with the edge of the door panel. The astragal is at least partially compressible for closing off an interface between the edge of the door panel and an adjacent surface.

Elevator door astragal

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.

Synchronizing assembly for elevator door and elevator

A method of unlocking an elevator car door or an elevator car includes operating a door operator and moving a movable vane operably coupled to the door operator. If the elevator car is positioned within a landing door zone, the movable vane is moved into contact with an interlock roller. An engagement latch is rotated to disengage from an electrical contact in response to moving the movable vane into contact with the interlock roller.

Elevator car door interlock

An illustrative example elevator door interlock includes at least one coupling roller supported on a base. A lock is configured to move relative to the base and the at least one coupling roller between a locking position and an unlocked position. An unlocking roller supported on the lock is situated to be moved by a vane of an elevator door coupler to move the lock into the unlocked position prior to the vane contacting the coupling roller. The elevator door interlock is compatible with a clamping type elevator door coupler and an expanding type elevator door coupler. The coupling roller is situated to be received between two vanes of the clamping type elevator door coupler or received against one of two vanes of the expanding type elevator door coupler.

Versatile elevator door interlock assembly

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.

Monitoring system, elevator door system having monitoring system, and method

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.

Elevator door in interlock assembly

A system for elevator door sensor fusion, fault detection, and service notification is provided. The system includes a processor and a memory including computer-executable instructions that, when executed by the processor, cause the processor to perform operations. The operations include monitoring outputs of a plurality of sensors. It is determined whether the outputs of the plurality of sensors follow an expected pattern. Based at least in part on determining that the outputs of the plurality of sensors do not follow the expected pattern: identifying a sensor in the plurality of sensors that is not following the expected pattern, and transmitting a notification indicating that the sensor is exhibiting unexpected behaviour.

Elevator door sensor fusion, fault detection, and service notification

An illustrative example embodiment of an elevator rope sway damping assembly includes a plurality of sway dampers having a width and a length. An actuator device selectively causes movement of the sway dampers in a direction transverse to the length between a first position where the sway dampers are spaced apart by a first distance and a second, sway-damping position where the sway dampers are spaced apart by a second, shorter distance. The actuator device provides an indication when the sway dampers are in the first position.

Elevator roping sway damper assembly

An illustrative example embodiment of an elevator system includes an elevator car situated for movement among a plurality of landings. The elevator car includes a car door and a door mover. A door interlock associated with a landing door at each of the landings is configured to couple the associated landing door with the car door. The door interlocks respectively include a lock switch. A controller is configured to: cause the elevator car to move to at least one of the landings; when the elevator car is at the at least one landing, cause the door mover to instigate movement of the door interlock sufficient to at least temporarily change a position of the lock switch; and locate a malfunctioning one of the lock switches at one of the landings based on the movement of the door interlock.

Automated elevator safety chain diagnosis

An illustrative example method of positioning an elevator door interlock includes positioning an elevator car in a hoistway near the hoistway door so that at an elevator door coupler is aligned with the interlock, opening a door of the elevator car and the hoistway door, accessing an adjustment mechanism supporting the interlock from outside of the hoistway, and using the adjustment mechanism to adjust a position of the interlock relative to the hoistway door from outside the hoistway.

Method and assembly for positioning an elevator door interlock

An elevator car door interlock includes a first link assembly and a latch assembly. The first link assembly includes a first intermediate link and a first link. The first intermediate link is movably connected to a first sensing vane. The first link is pivotally connected to a baseplate. The first link has a first link first arm pivotally connected to the first intermediate link, and a first link second arm having a first link first connection that is pivotally connected to a second sensing vane. The latch assembly includes a lock member, a door latch, and a latch link. The door latch is pivotally connected to the baseplate and is arranged to selectively engage the lock member. The latch link extends between and is pivotally connected to the door latch and the first intermediate link.

Car door interlock

An elevator car door interlock includes a first link assembly having a first intermediate link movably connected to a first vane, and a first link having a first link first end pivotally connected to the first intermediate link and a first link second end pivotally connected to the second vane. A latch assembly includes a door latch pivotally connected to the baseplate wherein responsive to operation of a drive mechanism that is drivably connected to the first link second end, while an interlock roller engages at least one of the first vane and the second vane, the first vane moves towards the second vane and the door latch pivots to unlock an elevator car door.

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.

An illustrative example elevator system includes at least one elevator car that is moveable along a hoistway. An elevator controller is configured to respond to a communication from a portable device indicating a desire for the at least one elevator car to be placed in a maintenance mode and indicating a location of desired hoistway access. The controller automatically moves the elevator car to a determined positon based on the communication. That position corresponds to the location of the desired hoistway access. The controller performs at least one automated procedure to place the elevator car in the maintenance mode. The controller provides an indication to the portable device that the elevator car is in the determined position and that the automated procedure has been completed.

Growing community of inventors

Cromwell, CT, United States of America

Michael J Tracey