RODENT REPELLING APPARATUS Russian patent published in 1997 - IPC

FIELD: agriculture, in particular, repelling of mice or rats to protect objects in closed food product storages, food processing houses, elevators. SUBSTANCE: apparatus has acoustic device 1 with sound generator 2, whose output is connected through power amplifier 3 to at least one isodynamic head 4, and ozone source 5, whose control input is connected to program unit output 6. Apparatus operates in such manner that rodents do not manage to get accustomed to its repelling effect. Apparatus may be mounted in rooms having various configurations. EFFECT: wider operational capabilities and increased efficiency. 3 cl, 1 dwg