Elevator system
US4129199A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 29, 1977 |
| Grant date | Dec 12, 1978 |
| Priority date | — |
| Expiry date | Apr 29, 1997 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66B1/20
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
An elevator system, and method of operating same, which includes a plurality of elevator cars mounted in a building to serve the floors therein. The building includes a special floor, located between the top and bottom floors, from which all calls for elevator service in the up and down directions may be registered. Supervisory control apparatus, which assigns a hall call to a selected elevator car, gives priority to a predetermined service direction from the special floor when hall calls for both the up and down directions coexist therefrom, with the priority direction being responsive to the position of the special floor in the building.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.