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:
May. 28, 2013
Filed:
Mar. 15, 2004
Mark S. Thompson, Tolland, CT (US);
William A. Veronesi, Hartford, CT (US);
John Pitts, Avon, CT (US);
Ary O. Mello, Farmington, CT (US);
Hugh J. O'donnell, Longmeadow, MA (US);
John P. Wesson, Vernon, CT (US);
William C. Perron, Bristol, CT (US);
Douglas E. Logan, Bristol, CT (US);
Kathryn Rauss Sherrick, Bristol, CT (US);
Richard Phillips, Trevaux, CH;
Peter Schreiner, Munchenstein, CH;
Pierangelo Jotti, Niederwill, CH;
Mark S. Thompson, Tolland, CT (US);
William A. Veronesi, Hartford, CT (US);
John Pitts, Avon, CT (US);
Ary O. Mello, Farmington, CT (US);
Hugh J. O'Donnell, Longmeadow, MA (US);
John P. Wesson, Vernon, CT (US);
William C. Perron, Bristol, CT (US);
Douglas E. Logan, Bristol, CT (US);
Kathryn Rauss Sherrick, Bristol, CT (US);
Richard Phillips, Trevaux, CH;
Peter Schreiner, Munchenstein, CH;
Pierangelo Jotti, Niederwill, CH;
Otis Elevator Company, Farmington, CT (US);
Abstract
An elevator load bearing member assembly includes at least one roughened surface () on a polyurethane jacket (). In one example, mechanical roughening is used to roughen the surface () after the jacket has been extruded onto tension members (). In another example, the temperatures used for molding a jacket () are controlled to induce melt fracture and roughen the surface () during the forming process. Other examples include chemically roughening the jacket surface and using localized heating to roughen the surface. The roughened jacket surface improves friction characteristics of a load bearing member assembly.