MULTIFUNCTIONAL DOMESTIC ANNUNCIATOR Russian patent published in 2003 - IPC

Abstract RU 2205520 C1

FIELD: communal equipment in residential tenement houses and industrial premises, audio announcing equipment. SUBSTANCE: multifunctional domestic enunciator makes it possible to save electric energy thanks to use of story control over illumination in doorways and over illumination of landing areas in front of elevator, to conduct fanned control over illumination if elevator in doorway is not operational, to carry out control over illumination when illumination is switched on for the time of presence of man on story landing, to execute control over house-breaking alarm, to realize control over automatic switching on of doorway illumination while tenant goes out of apartment. EFFECT: increased electric safety, comfort and reliability, simplified wiring, electric energy saving and prolonged service life of illumination lamps. 5 cl, 1 dwg

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RU 2 205 520 C1

Authors

Likhachev V.E.

Dates

2003-05-27Published

2002-02-27Filed