United Technologies Corporation

Otis Elevator Company

Joe J Liou

Richard N Fargo

Tahany Ibrahim El-Wardany

Andrzej Ernest Kuczek

Daniel V Viens

Justin R Hawkes

Raja Kountanya

Eric D Gray

Gary Paul Zadrozny

James M Draper

Xiaodong Luo

Lee A Hoffman

Duan Liang

Patricia L O'Coin

An adjacent safety configuration for an elevator includes a second pair of safeties displaced from a first pair of safeties by at least 0.1 seconds of travel time at a rated speed of the elevator. An adjacent safety configuration for an elevator including a second pair of safeties displaced from the first pair of safeties to provide a predetermined time period before the second pair of safeties pass over a point on a guide rail previously passed over by the first pair of safeties to permit the guide rail surface to decrease by a predetermined temperature. A method of spacing an adjacent safety configuration for an elevator system including de-rating a pair of trailing safeties with respect to a pair of leading safeties as a function of a rated speed of the elevator and a spacing between the pair of trailing safeties and the pair of leading safeties.

Safety brake configuration for elevator application

A device and methods are provided for deep rolling. In one embodiment, a deep rolling tool for applying compressive stress with rolling elements includes a fork having a base section and a plurality of fork arms, each fork arm extends outwardly from the base section and the fork arms are separated from one another to form an opening. The deep rolling tool may also include rolling elements, wherein each rolling element is mounted at the distal end of a fork arm, and the rolling elements are configured to apply a compressive stress to articles received by the deep rolling tool.

Deep rolling tool for blade fatigue life enhancement

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South Windsor, CT, United States of America

Joe J Liou