Otis Elevator Company

David J Lanesey

Zbigniew Piech

Kyle B Martin

Richard N Fargo

John P Wesson

Daryl J Marvin

Ismail Agirman

Brad Guilani

Harold Terry

Amir Lotfi

Anthony Cooney

Vijay Narayan Jagdale

Leandre Adifon

Justin Billard

Gopal R Krishnan

HanJong Kim

Jun Ma

James M Draper

Kyle W Rogers

David R Polak

Peter Keyo

Bassel Al-Annouf

HakKi Han

Pawel Witczak

Jamie A Rivera

A method of imprinting a belt sheave without removal of an associated belt includes placing a knurling wheel of a tool against a circumferentially extending section of a sheave not in contact with the belt. The sheave is then rotated to induce rotation of the knurling wheel. A jack screw of the tool is actuated to bias the knurling wheel against the sheave for production of imprints upon the sheave.

Sheave knurling tool and method of operating

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

A sheave knurling tool is adapted to knurl a sheave while carrying a belt and coupled to a drive unit for rotation. The sheave knurling tool may include a body, an arm, a jack, and a knurling wheel. The body is detachably coupled to a support structure of the drive unit. The arm is pivotally engaged to the body about a pivot axis. The jack is adjustably coupled to, and extends between, the body and the arm. The knurling wheel is carried by the arm, and the jack is constructed and arranged to pivot the arm toward the sheave thereby exerting a biasing force of the knurling wheel against the sheave.

A brake system for an elevator car includes a multiple of brake segments to control a timing and a rate of brake torque for deceleration of the elevator car, a first of the multiple of brake segments includes a first electromagnetic coil with a characteristic different than a second electromagnetic coil of a second of the multiple of brake segments.

Electromagnetic brake system for elevator application

A battery powered elevator system in which the battery and power electronics needed to connect the battery to the machine driving the elevator system are mounted in close proximity within the hoistway of the elevator system to minimize power transmission losses.

Battery mounting in elevator hoistway

An elevator system includes one or more rails fixed in a hoistway and an elevator car configured to move through the hoistway along the one or more rails. The system includes one or more braking systems having one more braking surfaces secured to the elevator car and frictionally engageable with one or more rails of the elevator system. One or more actuators are operably connected to the one or more braking surfaces configured to urge engagement and/or disengagement of the one or more braking surfaces with the rail to stop and/or hold the elevator car during operation of the elevator system.

Elevator braking system

An elevator door coupler includes a vane member adapted to be supported on one of a hoistway door or an elevator car door. A magnetic coupler device () is adapted to be supported on the other of the hoistway door or the elevator car door to be selectively magnetically coupled with the vane member. The magnetic coupler device includes a plurality of modules () each having a core and at least one coil associated with the core. An insulation material () occupies a space between the modules for substantially insulating adjacent coils from each other and for maintaining a desired alignment of the modules relative to each other.

Magnetic elevator door coupler

Growing community of inventors

Harwinton, CT, United States of America

David J Lanesey