Elevator
US5036954A · kind A · utility
13Cited by
4References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 4, 1989 |
| Grant date | Aug 6, 1991 |
| Priority date | — |
| Expiry date | Oct 4, 2009 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66B19/007
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
To increase the transportation capacity in relation to shaft volume, of an elevator comprising an elevator shaft with guide rails on which the elevator car and its counterweight move, the ropes on which the car and counterweight are suspended, and a traction sheave, whose motion is transmitted to the car and counterweight by the ropes, the rail length provided for the travel of the counterweight is shorter than the rail length provided for the travel of the elevator car.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.