Elevator system
US4436184A · kind A · utility
15Cited by
6References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 5, 1982 |
| Grant date | Mar 13, 1984 |
| Priority date | — |
| Expiry date | May 5, 2002 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66B13/08
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
An elevator system including an elevator car having an electromechanical door restraint mechanism which prevents the forceable opening of an elevator car door by passengers when the elevator car stops outside a predetermined zone adjacent to a floor level, at least to an extent which would enable passenger exit from the car.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.