Patent ID: 8146309
Filing Date: 2012-04-03
Classification: E01C,E01D,E02D,E04B,E04F

Abstract:
1. A device for inducing cracking and providing drainage in concrete, comprising: an extruded member having an integrally formed base, a pair of legs and drain channel; the base having a flat bottom to sit upon a bed upon which concrete is to be poured such that the device is self-standing; the pair of legs each having a planar face extending a length upwardly from the base to a top edge; the drain channel between the base and the legs and having at least one open end to drain fluid from the channel; wherein the legs initially engage one another along the planar face and then spread apart as the concrete cures so as to induce a crack in the concrete and to define a gap between the legs communicating with the drainage channel to drain moisture which enters the crack; wherein the drain channel is integrally formed into the extruded member between the base and the legs from a lower end of each of the legs to a top surface of the base which extends outwardly from a bottom of the drain channel; and a stake extending through the base to secure the device on the bed.