Method and an elevator arrangement
US9388020B2 · kind B2 · utility
2Cited by
1References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 6, 2013 |
| Grant date | Jul 12, 2016 |
| Priority date | — |
| Expiry date | Jun 16, 2034 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04H12/34
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A method and elevator arrangement wherein a roof structure is lifted higher in a hoistway so as to make more room below the roof structure, the roof structure being a movable roof structure, and in that the movable roof structure is lifted in the hoistway taking support for the lift from a second movable support structure mounted in the hoistway above the roof structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.