Patent ID: 7090202

Claim:
A fence panel for tracking a sloped grade of a portion of a terrain surface for attaching to adjacent ones of the fence panel to define an elongate length of fencing along the terrain surface, comprising: a first rail and a second rail disposed in parallel, spaced-apart relation to each other and defining a longitudinal length of the fence panel, each of said first rail and second rail defining on a side a first longitudinal edge and an opposing second longitudinal edge spaced apart relative to the first longitudinal edge, and said first and second rails disposed at an angle relative to horizontal; a pair of spaced-apart first pickets disposed substantially perpendicular to horizontal on the side of the first rail and the second rail and attached thereto by a weld only between each of the first pickets and the respective first longitudinal edge of the first rail and the second rail; a plurality of second pickets disposed substantially perpendicular to horizontal on the side of the first rail and the second rail and attached thereto by a weld only between each of the second pickets and the respective second longitudinal edge of the first rail and the second rail, whereby the first pickets and the second pickets attached on opposing longitudinal edges of the first rail and the second rail restrict the first and second rails from rolling away from the first and second pickets while the fence panel, being racked by moving opposing ends of the panel in opposing vertical directions relative to the terrain surface, conforms a slope of the first rail and the second rail substantially to a slope of the portion of the terrain surface by changing the angle between the first and second pickets relative to the first and second rails while the first and second pickets remain substantially perpendicular to horizontal.