Pulse-free escalator
US6685003B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 28, 2001 |
| Grant date | Feb 3, 2004 |
| Priority date | — |
| Expiry date | Dec 28, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66B23/022
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A pulse free escalator system has two spaced apart pulse free turnaround sections and at least one pulse-free transition zone. A method of designing the turnaround sections and the at least one transition zone is described herein. The escalator system has a pair of guide tracks and a pair of linkage assemblies, each comprising a plurality of links joined together. Each linkage assembly has a plurality of rollers for supporting the linkage assembly which travel in a respective one of the guide tracks. Each guide track has two spaced apart turnaround portions with each turnaround portion defining a travel path for each roller having a linear entry section, a linear exit section, and a pulse-free section intermediate the two sections.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.