Patent ID: 6070379
Filing Date: 2000-06-06
Classification: E01C

Abstract:
A method of expanding an area to be enclosed, comprising the steps of:providing a predetermined number, divisible by four, of substantially identically constructed blocks, each block having spaced first and second end edges and a pair of angled side edges extending therebetween which diverge from each other in a direction from the first end edge toward the second end edge, wherein the length of the first end edge of each block is less than that of the second end edge;wherein the first end edge has a width substantially equal to 3.29 inches, the second end edge has a width substantially equal to 4.00 inches, and the block has a depth substantially equal to 3.625 inches, wherein the side edges diverge at an angle of 11.25.degree. relative to each other;placing the blocks such that the side edges of adjacent blocks engage each other and the first and second end edges of adjacent blocks face generally the same direction, wherein an equal number of blocks are located in each quadrant of the area to be enclosed;providing a pair of expansion blocks for each quadrant of the area to be enclosed, wherein the expansion blocks are constructed substantially identically to the first-mentioned blocks; andorienting at least one of the expansion blocks in each quadrant differently than the remaining blocks in the quadrant to provide a substantially linear segment for each quadrant;wherein the shape of the blocks functions to provide an enclosed shape without the presence of gaps between adjacent blocks.