Process and device for the contactless electronic control of the flow of water in a plumbing unit
US5655749A · kind A · utility
26Cited by
6References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 7, 1995 |
| Grant date | Aug 12, 1997 |
| Priority date | — |
| Expiry date | Jun 7, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R31/3648
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
To guarantee a higher reliability of operation, the capacity of a battery to reliably open and close a water valve and to operate a microprocessor is continuously checked. To do so, a plurality of reference voltages are formed. The current voltage of the battery is compared with these reference voltages, and the state of the battery is indicated on the basis of this comparison with, e.g., an LED.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.