Otis Elevator Company

Hamilton Sundstrand Corporation

David R Polak

John P Wesson

Yan Chen

Ray-Sing Lin

Zaffir A Chaudhry

Tahany Ibrahim El-Wardany

Charles C Coffin

Sergei F Burlatsky

Anthony C Jones

Andrzej Ernest Kuczek

Xiaomei Yu

Brad Guilani

Daniel V Viens

Vijay Narayan Jagdale

Mark Steven Thompson

Gopal R Krishnan

James C Napier

Paul R Braunwart

Jose Miguel Pasini

Jun Ma

James M Draper

Xiaodong Luo

Scott A Liljenberg

Arthur Blanc

Peter Keyo

David J Lanesey

Shihemn Chen

Robert Hans Schlinker

Christopher T Chipman

Aayush Desai

Joe J Liou

David E Parekh

Daniel G Opoku

John J Kriss

Matteo Rucco

Duan Liang

Cecilia Tonelli

Andrea De Antoni

Patricia L O'Coin

A method of controlling operation of an elevator system (), the elevator system () including a hoistway () extending between a plurality of landings () situated on different floors (), and at least one elevator car () configured for moving along the hoistway () between the plurality of landings (). The method includes receiving a control input indicating a passenger transport request, wherein the control input comprises at least one passenger transport request parameter; monitoring passengers () within or outside the elevator car () and determining at least one passenger parameter associated with the passengers (); comparing the at least one passenger transport request parameter with the at least one passenger parameter; and controlling further operation of the elevator system () based on the result of said comparison.

Elevator system

This disclosure relates to a system and method for monitoring a sheave bearing condition, and in particular relates to passenger conveyer systems, such as elevator systems, employing the system and method. An example passenger conveyer system includes a suspension member, and a sheave configured to rotate on a bearing. The suspension member is wrapped around at least a portion of the sheave. Further, the system includes a sensor mounted adjacent an end of the suspension member, and a controller configured to determine a condition of the bearing based on an output of the sensor.

System and method for monitoring sheave bearing condition

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

The present invention is directed to an elevator system. The elevator system comprises a car, a counterweight, at least one belt connecting the car and counterweight, and at least one sheave having a surface that engages with the belt. At least part of the surface of the sheave that interfaces with the belt has a plurality of features for reducing unwanted noise created due to the interaction between the belt and the sheave surface.

System and method for reducing belt noise

An elevator car () comprises: a cab () having a top, a bottom, a left side, a right side, a front, and a back, the front having a door (); and a frame () supporting the cab. The cab comprises a perimeter shroud () protruding above a surface of the top and leaving a well () exposing a central portion of an upper surface () of the top; the perimeter shroud protrudes above the upper surface; and the perimeter shroud has, in vertical section, a curved portion.

Elevator virtual aerodynamic shroud

A method for applying a coating to a substrate includes obtaining a fluorinated polymer compound, where the fluorine is chemically or covalently bonded to the polymer molecule; and coating the surface of the substrate with the fluorinated polymer compound.

Coated sheave

A method for constructing an interface between a sheave and a coated belt or rope of an elevator system, includes determining the surface energy of a surface of a coated belt or rope; and selecting a sheave such that the sheave has a work of adhesion between the coated belt or rope and the sheave, the work of adhesion meeting a defined relationship with a work of adhesion threshold.

Sheave for an elevator system

A system for reducing compressor noise includes a rotor having a plurality of blades. The blades have a nominal geometry characterized by a blade parameter. At least some of the blades are mistuned, such that they differ from the nominal geometry by greater than a manufacturing tolerance in the blade parameter. The blades produce shock waves at a blade passing frequency, and the mistuned blades shift acoustic energy away from the blade passing frequency to multiple lower amplitude tones at other frequencies. The system is configurable to be deployed with an inlet silencer that preferentially absorbs acoustic energy at some of the shifted frequencies.

System for reducing compressor noise

Growing community of inventors

Glastonbury, CT, United States of America

David R Polak