Otis Elevator Company

United Technologies Corporation

Charles C Coffin

Paul R Braunwart

Thomas Gregory Tillman

Yan Chen

David R Polak

Brian M Welch

Zaffir A Chaudhry

John P Wesson

Sergei F Burlatsky

Enrico Manes

Brad Guilani

Walter Thomas Schmidt

Louis J Spadaccini

Foster Philip Lamm

Zidu Ma

Patricia Derwinski

He Huang

Catalin G Fotache

Kishore K Reddy

Alexander Chen

Sudarshan N Koushik

Teems E Lovett

Mark E Marler

Arthur Blanc

Soumalya Sarkar

Shihemn Chen

Christopher T Chipman

Anais Espinal

Daniel G Opoku

Heng-Yi Lai

Lou Chiappetta

James A Wilkinson

Alexander G Chen

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

According to an aspect, an elevator sensor calibration system includes one or more sensors operable to monitor an elevator system, an elevator sensor calibration device, and a computing system. The computing system includes a memory and a processor that collects a plurality of baseline sensor data from the one or more sensors during movement of an elevator component, collects a plurality of disturbance data from the one or more sensors while the elevator component is displaced responsive to contact with the elevator sensor calibration device during movement of the elevator component, and performs analytics model calibration to calibrate a trained model based on one or more response changes between the baseline sensor data and the disturbance data.

Elevator sensor calibration

Disclosed is an escalator system that has: an escalator step; and load sensors secured to the escalator step, wherein the load sensors are configured to: sense an escalator loading; and transfer, to an escalator controller, sensor data indicative of the escalator loading.

Escalator steps with strain sensors

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

A fuel system for an energy conversion device includes a multiple of non-metallic fuel plates, gaskets, oxygen permeable membranes, porous substrate plates, and vacuum frame plates. Intricate 3-dimension fuel channel structures such as laminar flow impingement elements within the fuel channel dramatically enhance oxygen diffusivity in the FSU. The fuel plates are manufactured from a relatively soft non-metallic material. The non-metallic fuel plates and gasket arrangement provide an effective sealing interface between the fuel plate and oxygen permeable membrane, since compression may be applied to the plates without damaging the relatively delicate oxygen permeable membrane.

Fuel deoxygenation system with non-metallic fuel plate assembly

A fuel stabilization system includes a first deoxygenator and a second deoxygenator both for removing dissolved oxygen from a hydrocarbon fuel. The first and second deoxygenators are arranged in parallel or series to sequentially remove a portion of dissolved oxygen from the hydrocarbon fuel. The arrangement of several deoxygenators for a single fuel stream improves removal of dissolved oxygen and provides for scalability of the fuel system to meet application specific demands. The arrangement also provides for the preservation of partial system functionality in the event of the failure of one of the deoxygenator modules.

Modular fuel stabilization system

A sound absorbing light fixture ( ) installed in a surface system, such as an elevator ceiling system ( ), of an enclosed interior, such as the interior ( ) of an elevator cab ( ) is presented. The light fixture ( ) comprises a frame ( ) disposed in fixed relationship to the surface system, the frame ( ) having an interior rear surface and interior side surfaces extending outwardly from the rear surface to define a cavity ( ). A light source ( ) is supported by the frame ( ) within the cavity ( ). Additionally, a light diffuser ( ) is disposed in fixed relationship to a front portion of the frame ( ) between the light source ( ) and the enclosed interior. The installed light fixture ( ) enhances a sound absorption coefficient, e.g., above 0.6, of the surface system for a predetermined frequency range of sound energy, e.g., 300-600 Hz.

Sound absorbing light fixture

Growing community of inventors

Vernon, CT, United States of America

Charles C Coffin