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:
Aug. 15, 2017
Filed:
Feb. 21, 2013
Otis Elevator Company, Farmington, CT (US);
Fanping Sun, Glastonbury, CT (US);
John P. Wesson, West Hartford, CT (US);
Xiaodong Luo, South Windsor, CT (US);
Huan Zhang, Glastonbury, CT (US);
Zaffir A. Chaudhry, South Glastonbury, CT (US);
Daniel A. Mosher, Glastonbury, CT (US);
Yan Chen, South Windsor, CT (US);
Mark Steven Thompson, Tolland, CT (US);
OTIS ELEVATOR COMPANY, Farmington, CT (US);
Abstract
A method of fault detection of a belt or rope includes connecting a fault detection unit to at least a portion of a belt or rope including a plurality of wires arranged in a plurality of strands and/or cords. At least the portion of the belt or rope is subjected to an AC voltage of high frequency range and an electrical impedance of the portion of the belt or rope is measured via the fault detection unit. Using at least the measured electrical impedance of the portion of the belt or rope, a fault condition of the belt or rope is determined.