Method for fixing the protective fabric on insulation tape for buried pipes

Abstract

A method for protecting underground pipes by applying three layers of different materials to an outer surface of a pipe is accomplished by wrapping three layers of different materials on the pipe outer surface. The three layers are: The first layer: which surrounds the pipe, is the insulating tape known as cold wrap tape. The second layer: which follows the first layer, made from non-woven synthetic wool, and called the protector. The third layer: the fixing tape made of synthetic fabric that contains fine hooks that can grip tight the second layer—the protector—and prevent it from delamination and falling. Second and third layers act together as Velcro to securely fix and protect the first layer (cold roll tape) from the mechanical damage of soil and tamping over the pipe and UV during the of installation period and before backfilling.

Dependencies are inferred from the claim text.