Otis Elevator Company

Peter Keyo

David R Torlai

Hong Yang

Brad Guilani

James Leo Hubbard

Xiaoyuan Chang

Lance L Lavender

Richard N Fargo

John P Wesson

Vijay Narayan Jagdale

Mark Steven Thompson

Gopal R Krishnan

Kyle B Martin

Barry G Blackaby

Jun Ma

Michael Garfinkel

David R Polak

Peter Liaskas

David J Lanesey

David Wayne Mckee

Russell Bruce Gottlieb

Disclosed is a liner for a traction sheave including a top surface and a bottom surface mutually spaced on a height-wise axis (H), a front surface and a back surface mutually spaced on lengthwise axis (L), and a plurality of side surfaces including a first side surface and a second side surface mutually spaced in a widthwise axis (W), wherein in a first cross sectional profile of the plurality of side surfaces forms convergent-divergent profile.

Friction liner and traction sheave

A belted elevator system () includes a hoistway () and an elevator car () suspended in the hoistway () via a suspension member () and drivable along the hoistway (). The suspension member () is routed over a plurality of sheaves (). A sheave () of the plurality of sheaves includes a shaft () defining a central axis of the sheave (), the sheave () rotatable about the central axis. A sheave outer member () is operably connected to the shaft () and rotatable about the central axis. The sheave outer member () includes a sheave outer surface () interactive with the suspension member (). The sheave outer member () is formed from a molded plastic material.

Sheave for elevator system

An elevator maintenance kit is provided for surfacing an elevator sheave that engages with an elevator tension member. The kit includes a substrate with an adhesive backing, and a substrate applicator that is operable to apply the substrate to the sheave as the sheave is rotated. The adhesive backing is operable to attach the substrate to the sheave during the sheave rotation.

Methods and apparatuses for applying a substrate onto an elevator sheave

A belt for suspending and/or driving an elevator car includes a plurality of wires arranged into a plurality of cords. The plurality of cords includes one or more inner cords located at an innermost portion of the belt relative to a lateral end of the belt and one or more outer cords located laterally outboard of the one or more inner cords. The one or more outer cords have a construction distinct from the one or more inner cords. A jacket substantially retains the plurality of cords.

Elevator system belt

An exemplary system includes a moveable mass. A load bearing member includes at least one electrically conductive tension member that supports a load associated with movement of the mass. An electrically conductive member is situated along a selected portion of a path of movement of the load bearing member. The electrically conductive member is not subject to a load on the tension member. A processor is configured to determine an electrical resistance of the tension member as an indicator of a condition of the tension member. The processor is configured to determine an electrical resistance of the electrically conductive member. The processor uses the determined electrical resistance of the electrically conductive member to compensate for any environmental influence on the determined electrical resistance of the tension member.

Temperature compensation for monitoring a load bearing member

A monitoring system for a support structure is provided. The monitoring system may include a resistance circuit coupled to the support structure, and an interface circuit coupled to the resistance circuit. The resistance circuit may include a first set of resistors and a second set of resistors, wherein the second set of resistors is configured to provide a reference voltage. The interface circuit may include one or more comparators, wherein each comparator is configured to compare a voltage across at least one of the resistors with the reference voltage and generate an output signal corresponding to the comparison. The interface circuit may be configured to continuously monitor an effective resistance of the support structure based on the output signals.

Resistance-based monitoring system and method

Growing community of inventors

Canton, CT, United States of America

Peter Keyo