Patent ID: 7887028

Claim:
An electric fence comprising: two substantially opposing supports; a plurality of insulators coupled to the supports, at least two of the plurality of insulators coupled to each said opposing support, each of said insulators including a substantially non-conductive element having at least two confined pathways, each confined pathway defined by at least two annular ridges and said non-conductive element freely rotatable about a central axis orientated to maintain symmetrical revolution; a first conductive strand coupled to the insulators and connected to an electrical power source configured to apply an electrical current to said first conductive strand; a second conductive strand coupled to the insulators, the second conductive strand electrically distinct to said first conductive strand to have a voltage potential therebetween to generate an electrical barrier between said opposed supports, wherein said first and second conductive strands extend continuously and repeatedly between each said opposing support such that only one of said first or second conductive strands pass through any one of said confined pathways of each of said insulators, and both said first and second conductive strands pass through a respective one of the confined pathways of at least one of said insulators, wherein each said annular ridge is of a height sufficient to shield a length of each said conductive strand passing through said confined pathways such that an observer cannot readily determine whether a particular one of said conductive strands entering one of said confined passages passes straight through, or is turned through an angle.