Elevator cab floor acceleration control system
US6305502A · kind A · utility
10Cited by
6References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 21, 1999 |
| Grant date | Oct 23, 2001 |
| Priority date | — |
| Expiry date | Dec 21, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66B11/0286
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
An elevator cab control system directly minimizes the lateral acceleration of an elevator cab floor, or platform, relative to the elevator car frame by implementing electromagnets between the cab floor and the car frame. The electromagnets are controlled in a closed-loop feedback manner by signals from accelerometers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.