Group control apparatus for elevators
US4709788A · kind A · utility
28Cited by
7References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 18, 1986 |
| Grant date | Dec 1, 1987 |
| Priority date | — |
| Expiry date | Jun 18, 2006 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66B1/18
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A group control apparatus for elevators includes a main station for performing a hall call registration of an elevator cage, floor remote stations, arranged in elevator halls for the respective floors of a building in which elevators are installed, for generating a hall call signal and performing a call display of the elevator cage, and a single data transmission line for coupling each of the floor remote stations to the main station and for performing serial data transmission.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.