Number of patents in Portfolio can not be more than 2000

United States of America

APP PUB NO 20200024105A1





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The present invention concerns an elevator comprising: an elevator shaft defined by surrounding walls and top and bottom end terminals; an elevator car vertically movable in the elevator shaft; an elevator hoisting machinery adapted to drive an elevator car; an electromechanical braking apparatus configured to brake movement of the elevator car; a first measuring device adapted to provide first position data and first speed data of the elevator car; a second measuring device adapted to provide at least a second position data of the elevator car; and a safety monitoring unit communicatively connected to the first measuring device and the second measuring device and configured to determine a synchronized position of the elevator car from the first and the second position data, and to determine an elevator car slowdown failure in the proximity of the top or the bottom end terminal from the first speed data and from the synchronized position of the elevator car. The safety monitoring unit is adapted to cause braking of the elevator car with the electromechanical braking apparatus upon determination of the slowdown failure.

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Inventor Name Address # of filed Patents Total Citations
Aitamurto, Juha-Matti Helsinki, FI 18 8
Lampinen, Riku Helsinki, FI 18 60

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