Anti-energy diversion system for electric utility meters
US4565995A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 22, 1983 |
| Grant date | Jan 21, 1986 |
| Priority date | — |
| Expiry date | Aug 22, 2003 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R22/066
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An anti-energy diversion system for mounting underneath the cover of a standard electric utility meter in order to sense common meter tampering events and indicate the occurrence of such events. A non-battery energy storage circuit extracts energy from the AC power line available in the meter to power the system even during power outages. A flashbulb associated with a heat sensitive indelible indicator is coupled to the energy storage circuit when any one of several tamper event sensor switches are closed. When a tamper event is sensed, a brilliant flash of light is discharged and the appearance of the indelible indicator is transformed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.