Electronic meter signalling device
US3992655A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 16, 1974 |
| Grant date | Nov 16, 1976 |
| Priority date | — |
| Expiry date | Sep 16, 1994 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01D13/26
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
This electronic meter signalling device provides a means for converting a conventional meter or gauge into an electronic switch in which a number of electronic outputs indicative of conditions of the meter or gauge are provided. The meter signalling device comprises a capacitive coupling means used in conjunction with an indicator of the meter or gauge to form electric charge coupling paths at a number of predetermined scale conditions of the instrument. Electronic circuitry transmits a signal through each electric charge coupling path to a discriminating circuit to activate outputs indicative of the scale conditions of the instrument.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.