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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 11584617 B1

PDFFull Text
Date of Patent:
Feb. 21, 2023

Filed:

Jul. 06, 2018

Motion feedback in an elevator

Applicant:

Kone Corporation, Helsinki, FI;

Inventors:

Antti Saarelainen, Helsinki, FI;

Andrej Burakov, Helsinki, FI;

Assignee:

KONE CORPORATION, Helsinki, FI;

Attorney:

Birch, Stewart, Kolasch & Birch, LLP

Primary Examiner:

Marlon T Fletcher

Int. Cl.
CPC ...
B66B 1/32 (2006.01); B66B 5/02 (2006.01); B66B 5/06 (2006.01); B66B 1/34 (2006.01); B66B 9/00 (2006.01); B66B 11/04 (2006.01);
U.S. Cl.
CPC ...
B66B 5/02 (2013.01); B66B 1/32 (2013.01); B66B 1/3415 (2013.01); B66B 5/027 (2013.01); B66B 5/06 (2013.01); B66B 9/00 (2013.01); B66B 11/043 (2013.01);
Abstract

An elevator drive apparatus is described which includes a drive unit for driving an elevator car, a brake device for braking a motion of the elevator car, a detector for detecting an electrical operation amount of the drive unit, and a controller. The controller is configured to release the brake device, to compare the detected electrical operation amount with a threshold, and to apply the brake device when the detected electrical operation amount exceeds the threshold. In this way, it is ensured that a speed of the elevator car in case of a rescue situation is within a safety limit.

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Saarelainen, Antti. (2023). Motion feedback in an elevator (U.S. Patent No. 11584617). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11584617

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