Stop device for preventing rodents, especially rats from entering residential buildings from sewer pipes or refuse chutes, with sewer pipe having tube section, the inner wall of which is fitted with electric conductors

摘要

A tube section (16) is provided in the sewer pipe (10). The inner wall of the tube section is fitted with electric conductors (36,46), which are either individually or collectively supplied with electric voltage. The distance between the conductors is smaller than the body length of the rodent, so that an electric bridge is formed through the rodent between two electric conductors which will either kill or paralyze the rodent.