WARNING DEVICE Russian patent published in 1997 - IPC

Abstract RU 2076355 C1

FIELD: instrumentation engineering. SUBSTANCE: device has warning stub which includes fire alarm and guard detectors with corresponding indicators. In case of stub disengaging indicator lights permanently but when disruption or short circuit take place indicator lights in twinkling regime in any stub state so it is possible stub state condition testing visually. Device quick action is attaining by modern integral chips using. EFFECT: more simple schematic and construction. 2 dwg

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RU 2 076 355 C1

Authors

Petrushkov Sergej Vasil'Evich

Zajtsev Aleksej Gennad'Evich

Dates

1997-03-27—Published

1994-08-04—Filed