Otis Elevator Company

Nigel Bruce Morris

Vlad Zaharia

Pascal Rebillard

Thomas He

Christophe Durand

Levent Gosterisli

Zhen Jia

Alan Matthew Finn

Qiang Li

Jianguo Li

Hui Fang

Jianwei Zhao

Alois Senger

ZhaoXia Hu

Anna Su

LongWen Wang

Gero Gschwendtner

Qian Li

The present invention relates to the field of passenger conveyor technologies, and provides an engaging state detection system of a passenger conveyor and a detection method thereof. In the engaging state detection system and detection method of the present invention, a depth sensing sensor is used to sense at least an engaging portion between a step and a comb plate of the passenger conveyor to obtain depth maps, and the depth maps are analyzed by a processing apparatus to detect whether an engaging state between the step and the comb plate is a normal state. The detection of the engaging state includes detection on whether comb teeth of the comb plate are broken, whether engaging teeth of the step are broken, and/or whether a foreign matter exists on an engaging line.

Detection of state of engagement between step and comb plate of passenger conveyor

An apparatus for effecting non-contact linear door displacement comprising a tubular motor formed of a stator () formed from a plurality of magnets () arranged along a linear axis (), and at least one thrust block () each formed of at least one electrically conductive coil encircling the stator () at a distance sufficient to facilitate electro-mechanical interaction between the plurality of coils and the stator (), at least one door () attached to at least one of the plurality of thrust blocks () via a hanger () and the at least one door () capable of a movement in the direction of the linear axis (), a rolling component () to enable movement of the hanger () in the direction of the linear axis (), and a control mechanism () for sensing the position of each of the at least one door () and issuing an electrical control signal to each of the plurality of thrust blocks () so as to affect the movement of the at least one door ().

Tubular linear synchronous motor control for elevator doors

Load cells on antirotation dowel pins or load mounts indicate brake reaction forces in the disk brake of an elevator. Vertical load cells on bending load cell indicate vertical brake reaction loads on a rail . A table indicating the load of an empty car at each of the landings served by the car permits subtracting load components relating to ropes, chains and cables to provide a live load indication prior to brake release; this may be used to determine if the load exceeds the maximum permissible load for the car.

Elevator brake load weighing system

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Cromwell, CT, United States of America

Nigel Bruce Morris