Control circuit for pneumatic phase
US4205700A · kind A · utility
4Cited by
9References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 14, 1977 |
| Grant date | Jun 3, 1980 |
| Priority date | — |
| Expiry date | Apr 14, 1997 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/86445
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
The invention provides the functional reliability of an automatic device, constituted by the association of phase cells comprising, for each phase, a pneumatic AND gate and bistable memory, which is ensured by the interposition of a threshold relay between the feedback interrupter associated with a phase all and the control input of the memory.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.