Invention Grant
- Patent Title: Coated rope or belt for elevator systems
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Application No.: US14002015Application Date: 2011-04-14
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Publication No.: US09731938B2Publication Date: 2017-08-15
- Inventor: John P. Wesson , Huan Zhang , Gopal R. Krishnan , Timothy D. Devalve
- Applicant: John P. Wesson , Huan Zhang , Gopal R. Krishnan , Timothy D. Devalve
- 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/US2011/032505 WO 20110414
- International Announcement: WO2012/141710 WO 20121018
- Main IPC: B66B7/06
- IPC: B66B7/06 ; D07B1/06 ; D07B1/22

Abstract:
Elevator coated ropes or belts are disclosed. The coated rope or belt may include at least one cord and a jacket retaining the at least one cord. The cord may include a plurality of filaments. The filaments are free of second-order helical structure. In a first embodiment, the filaments includes at least one inner filament and a plurality of outer filaments surrounding the at least one inner filament. The outer filaments are bunched together by forming a first-order helical structure through the length of the cord. In a second general embodiment, the filaments are free of both first- and second-order helical structures. The filaments are bunched together by a restraining loop or adhesive at one or more locations along the length of the cord. Methods of making the tension cord are also disclosed.
Public/Granted literature
- US20140027211A1 Coated Rope or Belt for Elevator Systems Public/Granted day:2014-01-30
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