Otis Elevator Company

Chris Pietrzykowski

Alan Matthew Finn

Richard N Fargo

Pei-Yuan Peng

Gerard Sirigu

Jae-Hyuk Oh

Gurumurthi Ravishankar

Helmut Schr&ouml;der-Brumloop

Randy G Henley

A position reference system for use with a conveyance, such as an elevator (). The system includes a code affixed to or embedded within a suspension device or primary motion coupling such as a rope or coated steel belt (). A reader () in a fixed location determines the position of the conveyance.

Position reference system for elevators

An elevator overspeed system designed to work as a governor includes a first switch responsive to an overspeed condition and a second, remotely located switch responsive to said first switch. An overspeed elevator control procedure is initiated when one of the first or second switches are tripped. The first switch is automatically re-set after the second switch is tripped. The second switch is manually re-set to re-start the elevator system in normal operation mode.

Remote storage and reset of elevator overspeed switch

Growing community of inventors

Unionville, CT, United States of America

Chris Pietrzykowski