Door operation control apparatus
US4328540A · kind A · utility
67Cited by
17References
80Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 20, 1980 |
| Grant date | May 4, 1982 |
| Priority date | — |
| Expiry date | Feb 20, 2000 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07C2009/00928
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A door operation control apparatus comprising a memory circuit for storing a programmed data on door control processes in the form of a combination of command codes is disclosed. A door operation input signal, a mode or condition detection signal from a door operating device and the condition of the program being executed are used to determine logically the optimum door operating mode, thus controlling the door operating device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.