Elevator load bearing member having a jacket with at least one traction-enhancing exterior surface

US7883634B2 · kind B2 · utility

Assignee

• OTIS ELEVATOR COMPANY · US

Inventors

• Mark S. Thompson · Tolland, US
• John P. Wesson · Vernon, US
• William A. Veronesi · Hartford, US
• Hugh J. O'Donnell · Longmeadow, US
• John T. Pitts · Avon, US
• William C. Perron · Bristol, US
• Ary O. Mello · Farmington, US
• Kathryn Rauss · Bristol, US

Key dates

• Filing date: Feb 9, 2005
• Grant date: Feb 8, 2011
• Expiry date: Oct 24, 2026

Classification

• Technology area (CPC D): Textiles; Paper
• CPC primary: D07B2501/2007
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

An elevator load bearing member assembly includes at least one traction enhancing surface (46) on a jacket (44). In one example, a mechanical removal process is used to strip away at least some of an amide-rich layer from the surface (46) after the jacket has been extruded onto tension members (42). In another example, a chemical removal process is used. Another disclosed example includes disrupting the surface.