Deck elevator car with speed control
US6336522B1 · kind B1 · utility
10Cited by
10References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 27, 2000 |
| Grant date | Jan 8, 2002 |
| Priority date | — |
| Expiry date | Oct 27, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S187/902
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
The hoist control device controls the hoist in such a manner that once the speed change of the cage frame has accelerated at a fixed acceleration, constant speed is maintained, after which it decelerates at a fixed deceleration and stops. Meanwhile, the cage chamber position control device controls the cage chamber drive device in such a manner that once the speed change of the cage chamber driven by the cage chamber drive device has accelerated at a fixed acceleration, constant speed is maintained, after which it decelerates at a fixed deceleration and stops.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.