Elevator
US6488124B1 · kind B1 · utility
25Cited by
13References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 25, 1998 |
| Grant date | Dec 3, 2002 |
| Priority date | — |
| Expiry date | Sep 25, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66B11/0045
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
In an elevator, a driving unit is installed at the top of an elevator shaft above a counterweight. Traction sheaves engage with ropes and are rotated by the driving device. These traction sheaves are positioned close to wall surfaces of the elevator shaft, that are adjacent to its wall surface facing the counterweight. The traction sheaves are also positioned outside the horizontally projected plane of a car.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.