Metering apparatus
US5045776A · kind A · utility
2Cited by
7References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 14, 1989 |
| Grant date | Sep 3, 1991 |
| Priority date | — |
| Expiry date | Dec 14, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06M1/276
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Metering apparatus with a bank of number wheel indicators has wiper and position contacts to provide an electrical indication of the meter reading. The contacts are scanned in a measurement mode and, in an alternating test mode, test signals are imposed upon the position contacts and the output again scanned. In this way, a contact validation output is generated from which faults such as contact short circuits can be detected by the remote meter reading apparatus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.