Electronic meter signalling device

Details Electronic meter signalling device Electronic meter signalling device

1974-09-16

1976-11-16

Moose, Harry

3171485B, H01H 4700

Patent

active

039926559

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.

REFERENCES:
patent: 1861929 (1932-06-01), Lowry
patent: 2138593 (1938-11-01), Breitenstein
patent: 2234895 (1941-03-01), Cerveny et al.
patent: 2540728 (1951-02-01), Hansen et al.
patent: 2647252 (1953-07-01), Moore, Jr.
patent: 2907932 (1959-10-01), Patchell
patent: 2935661 (1960-05-01), Quick
patent: 3012730 (1961-12-01), Coogan
patent: 3643134 (1972-02-01), Beling

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