Otis Elevator Company

Otis Elevatro Company

Shihemn Chen

Enrico Manes

Walter Thomas Schmidt

Xiaodong Luo

Zaffir A Chaudhry

Tahany Ibrahim El-Wardany

Luke A Mishler

Richard J Ericson

Jagadeesh Kumar Tangudu

Bruce P Swaybill

Thomas M Yun

Beata I Wawrzyniak

Loi Cheng

Daryl J Marvin

Zbigniew Piech

Michael A Klecka

Paul R Braunwart

Kishore K Reddy

James M Draper

Robert A Barth

Soumalya Sarkar

David R Polak

Meghan Mastriano

Charles C Coffin

Anais Espinal

Joe J Liou

Duan Liang

Patricia L O'Coin

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

An illustrative example spring includes a curved shape body having a length. The body includes a cavity that extends along at least a majority of the length. The body has a cross-section across the length that is different at a plurality of locations on the body along the length.

Spring useful for elevator safety device

An illustrative example elevator system includes a frame, a first elevator cab, a second elevator cab, and a plurality of sheaves associated with the first and second elevator cabs, respectively. A suspension assembly suspends the first and second elevator cabs within the frame. The suspension assembly has two ends in a fixed position relative to the frame. The suspension assembly includes a positive drive load bearing member along a first portion of a length of the suspension assembly and at least one other second load bearing member. A machine includes a drive sprocket that moves the positive drive load bearing member to cause movement of the first and second elevator cabs relative to the frame.

Elevator cab suspension assembly for a double deck elevator

The present disclosure relates generally to a propulsion system for an elevator having a first motor portion mounted to one of an object to be moved and a stationary structure and a second motor portion mounted to the other of the object to be moved and the stationary structure, the first motor portion having at least one coil.

Thermal management of linear motor

An illustrative example elevator assembly includes a first elevator cab and a second elevator cab. An H frame supports the first elevator cab and the second elevator cab. The H frame has a plurality of vertically oriented beams and at least one horizontally oriented beam extending between the vertically oriented beams. The at least one horizontally oriented beam is spaced from ends of the vertically oriented beams and the H frame does not have any horizontally oriented beam at either end of the vertically oriented beams. At least one linear actuator is coupled with the first elevator cab and the second elevator cab. The linear actuator is configured to selectively cause movement of the elevator cabs relative to the H frame.

H frame for a double deck elevator

The present disclosure relates generally to an elevator system having a hoistway, an elevator car to travel in the hoistway, a first motor portion mounted to one of the elevator car and the hoistway, the first motor portion having at least one coil, a second motor portion mounted to the other of the elevator car and the hoistway, the second motor portion having at least one permanent magnet, and a gap between the first motor portion and the second motor portion.

Variable linear motor gap

Growing community of inventors

Bolton, CT, United States of America

Shihemn Chen