Elevator system
US4248327A · kind A · utility
5Cited by
6References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 19, 1979 |
| Grant date | Feb 3, 1981 |
| Priority date | — |
| Expiry date | Mar 19, 1999 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66B3/00
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
An elevator system including at least one elevator car mounted for movement in a building to serve the floors therein, and pushbuttons for entering calls for elevator service. Calls for elevator service initiated by the pushbuttons are sequentially displayed in a predetermined order on a display, which also displays the total number of unanswered calls in the system at any instant. In a preferred embodiment, the predetermined order sequentially displays the calls starting with the call associated with the lowest floor, and proceeding upwardly through the building to the highest floor of the building.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.