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.:
Date of Patent:
Nov. 20, 2018
Filed:
Oct. 22, 2015
Applicants:
Ari Kattainen, Hyvinkaa, FI;
Tapio Tyni, Hyvinkaa, FI;
Inventors:
Ari Kattainen, Hyvinkaa, FI;
Tapio Tyni, Hyvinkaa, FI;
Assignee:
KONE Corporation, Helsinki, FI;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B66B 1/34 (2006.01); B66B 5/00 (2006.01); B66D 5/30 (2006.01);
U.S. Cl.
CPC ...
B66B 5/0037 (2013.01); B66B 5/0025 (2013.01); B66B 5/0031 (2013.01); B66D 5/30 (2013.01);
Abstract
The purpose of the invention is to detect a failure situation wherein the machinery brake of an elevator does not open sufficiently. In the method for testing failure of a machinery brake of an elevator, the machinery brake is controlled to open. After this, the traction sheave is oscillated with a test torque, the movement of the elevator machine is measured in connection with the oscillation, and if the machine does not move in connection with the oscillation, it is deduced that the machinery brake has not opened and has therefore failed.