Invention Grant
- Patent Title: Elevator cord health monitoring
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Application No.: US14768667Application Date: 2013-02-21
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Publication No.: US09862571B2Publication Date: 2018-01-09
- Inventor: Fanping Sun , Xiaodong Luo , Daniel A. Mosher , Huan Zhang , John P. Wesson , Yan Chen , Mark Steven Thompson , Raja Kountanya , Richard N. Fargo
- Applicant: OTIS ELEVATOR COMPANY
- Applicant Address: US CT Farmington
- Assignee: OTIS ELEVATOR COMPANY
- Current Assignee: OTIS ELEVATOR COMPANY
- Current Assignee Address: US CT Farmington
- Agency: Cantor Colburn LLP
- International Application: PCT/US2013/027013 WO 20130221
- International Announcement: WO2014/130028 WO 20140828
- Main IPC: B66B7/06
- IPC: B66B7/06 ; B66B7/12 ; B66B5/00 ; G01R17/00 ; G01R31/12 ; B66B9/00

Abstract:
A method of fault detection of a belt or rope includes interconnecting a plurality of cords of the belt or rope, the cords including a plurality of wires, to form a bridge circuit. A fault detection bridge circuit is subjected to a voltage excitation and outputs a voltage which is indicative of the belt or rope damage but remaining insensitive to other environmental noises.
Public/Granted literature
- US09809421B2 Elevator cord health monitoring Public/Granted day:2017-11-07
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