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:
Feb. 14, 2006
Filed:
May. 20, 2002
Richard N. Fargo, Plainville, CT (US);
Jorg Ostermeier, Buckeburg, DE;
Charles Darling, New Britain, CT (US);
Bernward Engelke, Hildesheim, DE;
Ernst Führing, Lindhorst, DE;
John Michael Milton-benoit, Springfield, MA (US);
Richard N. Fargo, Plainville, CT (US);
Jorg Ostermeier, Buckeburg, DE;
Charles Darling, New Britain, CT (US);
Bernward Engelke, Hildesheim, DE;
Ernst Führing, Lindhorst, DE;
John Michael Milton-Benoit, Springfield, MA (US);
Otis Elevator Company, Farmington, CT (US);
Abstract
An escalator drive assembly includes a backup member () that facilitates controlling movement of the escalator () even when the normal drive assembly operation is interrupted. A backup member () in the form of a flange () is associated with a drive pulley () and normally rotates in unison with the drive pulley (). When there is a failure in the normal operation of the drive mechanism, however, there is a resulting relative movement between the backup member () and the drive pulley (). Such relative motion preferably activates a switch () that provides a signal that indicates a failure of the normal operation of the drive mechanism. The backup member () facilitates providing an indication of a failure and control over movement of the escalator () even when the normal drive assembly is not operating as intended.