Patent · US Expired

Step Platform for an escalator

US5542521A · kind A · utility

2Cited by
4References
15Claims
0Family size

Assignee

Inventors

Key dates

Filing dateOct 5, 1994
Grant dateAug 6, 1996
Priority date
Expiry dateOct 5, 2014

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB66B31/006
  • WIPO fieldHandling
  • WIPO sectorMechanical engineering

Abstract

A step platform for an escalator is provided, comprising a higher step and a lower step. The higher step includes a top surface and a support arm. The lower step has a main body, a raisable middle section, and apparatus for selectively raising the middle section. When the apparatus for selectively raising the middle section engages the support arms, the top surface of the middle section is maintained in the same plane as the top surface of the higher step.

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