ELECTRICAL DERATISATION DEVICE Russian patent published in 2008 - IPC A01M19/00 

FIELD: agriculture.

SUBSTANCE: electrical deratisation device relates to means of rodent control and can be used for scaring away rodents from storing places of agricultural and food products, from building basements, from underground pipeline collectors. Electrical deratisation device comprises high-voltage terminal electrodes connected to high-voltage pulse source which consists of charging circuit, two power rails, high-voltage transformer and pulse generator which includes energy-storage capacitor and electronic switch and which is fed from primary cell. Feature of novelty consists in fact that primary and secondary windings of high-voltage transformer are galvanically disconnected from each other. High-voltage terminal electrodes are connected to both ends of secondary high-voltage transformer winding. Electronic switch is fitted with two electrodes. Pulse generator is fed from primary cell through current half-waves of both polarities with the help of charging circuit consisting of current-limiting capacitor, two diodes and inductance coil. Cathode of the first diode, anode of the second diode and first plate of current-limiting capacitor are connected to each other. First lead of inductance coil is connected to cathode of the second diode; its second lead, first lead of the high-voltage transformer primary winding and first plate of energy-storage capacitor are connected to each other. Second lead of high-voltage transformer primary winding is connected to the anode of electronic switch. Anode of the first diode, second plate of energy-storage capacitor and cathode of electronic switch are connected to each other and are connected to the first power rail. Second plate of current-limiting capacitor is connected to the second power rail. According to the second version and in contrast to the first one feature of novelty of the electrical deratisation device consists in fact that one end of high-voltage transformer secondary winding is connected to grounding device, and the other end is connected to high-voltage terminal electrodes.

EFFECT: simplification of electrical deratisation device design and improvement of performance characteristics regarding electrical and fire safety.

6 cl, 4 dwg