DE29613681U1 - Electrical locking of buildings against small mammals capable of climbing (such as martens, dormice) - Google Patents

Description

Norbert Stadioner Zaunerstrasse 1a

80997 Munich

07.08.1996

Electrical barriers to buildings to protect against small climbing mammals (such as martens and dormice).

Description

Electrical barrier of buildings against climbing small mammals

If an electric conductor is stretched along a line that mammals can touch, they will be deterred from crossing the line if the conductor has a sufficiently high electrical voltage compared to the ground on which the animals are walking or standing and the animals are electrically connected to the ground. This principle is state of the art and is used in electric pasture fences. To prevent permanent damage to the mammals, the conductor is operated with impulses, so that the fence only delivers short but powerful electric shocks.

problem

Small mammals such as martens, dormice and others are appearing more and more frequently in houses in urban areas. They are mainly found in hollow spaces in the roof structure. Stone martens in particular are not only a nuisance (noise, dirt and smell), but also cause considerable damage, e.g. by destroying thermal insulation and vapor barriers and by gnawing through electrical cables.

The animals are protected all year round and therefore may not be shot, caught in traps or poisoned. They are extremely adept at climbing and can only cling to the roughness of plaster. This ability allows them to move effortlessly up and down house walls. They can squeeze through openings with a diameter of around 60 mm. Martens cannot be permanently driven away by noise or smell.

These properties make it almost impossible to mechanically seal a building against martens. This is especially true for the roof area, which is designed to be ventilated and therefore needs to have appropriate openings. Preventing the small animals from approaching the building by using electrically charged fences is impracticable.

The invention mentioned in the protection claim effectively blocks martens and other small mammals from accessing the roof area of buildings via external walls without harming the animals. It can be implemented quickly and easily using commercially available components from pasture fences. Since the external plaster of buildings is generally not electrically conductive, the second cable is necessary.

An example of the lock is explained in the following sketch. The line connected to the high-voltage output of the pulse generator 3 is designated 1, the line connected to the negative terminal is designated 2. Line 1 is attached to high-voltage-resistant insulators 4. Line 2 is connected to protective earth 5 by a special line.

Claims (1)

• ■ ·* * Norbert Stadler Zaunerstrasse 1a 80997 Munich 07.08.1996 Electrical barriers to buildings to protect against small mammals that can climb (such as martens and dormice). Protection claims Electrical barriers to buildings to protect against small mammals that can climb (such as martens and dormice). characterized that on the outer wall of the building to be protected, which is usually made of electrically non-conductive material, two bare electrical cables are laid parallel to each other around the entire building above the height that people can reach, the distance between which is only so large that the mammals that are to be locked out have to touch both cables at the same time if they want to cross the boundary formed by the cables. The distance between the cables and the wall must not be so large that an animal that is to be locked out can slip between the wall and the cable without touching the latter. One cable is connected to the high-voltage output of a mains- or battery-powered pulse generator, the second to its negative, grounded output. The two cables are insulated from each other, and the high-voltage cable is also insulated from the wall.