Patent · US Expired

Escalator or moving step assembly

US6793061B2 · kind B2 · utility

1Cited by
4References
8Claims
0Family size

Assignee

Inventors

Key dates

Filing dateFeb 7, 2003
Grant dateSep 21, 2004
Priority date
Expiry dateFeb 7, 2023

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB66B25/00
  • WIPO fieldHandling
  • WIPO sectorMechanical engineering

Abstract

An escalator or moving step assembly includes a control unit, a plurality of input/output units each for providing data concerning a respective one of a location and a function of the escalator, and a standard bus system. The input/output units are connected to the standard bus system for communicating therewith. The escalator also includes a plurality of security position switches each having at least one opening contact and a plurality of security slaves each associated with a respective one of the security position switches and being communicated with the standard bus system. A security monitor communicated with the standard bus system and operating in cooperation with the security slaves initiates an intervention in the operation of the escalator in the event that an opening contact of a security slave is opened.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.