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:
Oct. 17, 2017
Filed:
Nov. 02, 2011
Applicants:
James L. Hubbard, Kensington, CT (US);
Michael Garfinkel, West Hartford, CT (US);
Juan Antonio Illan, Las Rozas, ES;
Robert D. Shepherd, Goshen, NJ (US);
Inventors:
James L. Hubbard, Kensington, CT (US);
Michael Garfinkel, West Hartford, CT (US);
Juan Antonio Illan, Las Rozas, ES;
Robert D. Shepherd, Goshen, NJ (US);
Assignee:
OTIS ELEVATOR COMPANY, Farmington, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01L 3/18 (2006.01); F16D 66/00 (2006.01); G01L 5/28 (2006.01); B60T 7/18 (2006.01); B66B 5/00 (2006.01);
U.S. Cl.
CPC ...
F16D 66/00 (2013.01); B66B 5/0037 (2013.01); G01L 5/28 (2013.01); B60T 7/18 (2013.01); B66B 5/00 (2013.01); F16D 2066/005 (2013.01);
Abstract
A method for monitoring brake torque of an elevator having a motor is provided. The method may engage an elevator brake for a predefined duration, determine a displacement of an output shaft of the motor during the predefined duration, and generate an alert if the displacement exceeds a predefined threshold.