Non-electric perimeter fence

A fence extension to be attached to an existing fence and thereby provide a non-electric perimeter fence adapted to enclose an area and to keep selected animals from entering said enclosed area, wherein said existing fence comprises an elongate, vertical barrier member extending lengthwise around an outer perimeter of said enclosed area and extending upwardly from ground level to a predetermined height above ground level, and a plurality of vertical support members for supporting said vertical barrier member, said vertical support members having an open upper end and an interior cavity extending downwardly from said upper end;

• said fence extension comprising:
• a plurality of elongate, vertical extension members, each having an upper section of a first diameter and a lower section of a second diameter, the second diameter being such that the lower section is adapted to fit snugly into the hollow upper end of a vertical support member of the existing fence, with a transition between the upper and lower sections being received at the upper end of the vertical support member of the existing fence, the extension member thereby forming a vertical extension of the vertical support member;
• an elongate angled barrier member extending lengthwise along substantially the entire length of the fence extension, said angled barrier being attached to said vertical extension members at an angle thereto and comprising a first surface facing toward said vertical extension members and a second surface facing away from said vertical extension member, said surfaces meeting at a bottom edge in close relation to the transition between the upper section and the lower section of the vertical extension member, and a top edge which is remote from the upper section of the vertical extension member, wherein said second surface is substantially smooth and flat from the bottom edge to the top edge and a distance from the bottom edge to the top edge is sufficient to prevent said selected animals from reaching from the bottom edge to the top edge of the angled barrier member;
• a plurality of angled support members for supporting the angled barrier member, said angled support members being rigidly secured to the first surface of the angled barrier member and maintaining the position of the angled barrier member relative to the vertical barrier member, said angled support members having a first end proximate the bottom edge of the angled barrier member and a second end proximate the top edge of the angled barrier member, the bottom edge being secured to the upper section of the vertical extension member at a connection point proximate the transition between the upper and lower sections;
• and
• a plurality of horizontal support members, each of which extends at a right angle from one of the vertical extension members and has a first end connected to the upper section of the vertical extension member at a point located intermediate the connection point of the first end of the angled support member and an upper end of the vertical extension member, and a second end connected to a point proximate the top edge of the angled barrier member.