Escalator apparatus and method of operation
US5386904A · kind A · utility
2Cited by
5References
13Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Feb 7, 1994 |
| Grant date | Feb 7, 1995 |
| Priority date | — |
| Expiry date | Feb 7, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66B23/12
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
Escalator apparatus of the invention is of the type that has a step whose step board can be raised to provide a surface for carrying a wheelchair. In order to realize conveyance of a large size wheelchair or handcart without changing the installation space for the escalator, the escalator apparatus of the invention is structured such that the step boards of a plurality of adjacent steps are movable upwardly and downwardly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.