Patent ID: 7794176

Claim:
An adjustable height drain comprising: a. an elongate base element having walls extending upwardly from said elongate base element to form an interior water conducting channel; b. a plurality of interlocking elements vertically spaced from each other on said upwardly extending walls; c. an elongate drain element having a top surface supported by downwardly extending walls, said top surface having a plurality of apertures enabling water to drain through said top surface; d. a plurality of interlocking elements vertically spaced from each other on said downwardly extending walls, wherein said elongate drain element comprising interlocking elements upon said downwardly extending walls is engaged upon said elongate base element via said interlocking elements depending from said upwardly extending walls such that said top surface of said elongate drain element is vertically spaced from said elongate base element by a first distance T(sub) 1 ; and wherein said elongate drain element and said elongate base element may be subsequently disengaged and said first distance T(sub) 1 adjusted to a second distance T(sub)N by altering which interlocking elements upon said downwardly extending walls of said elongate drain element are engaged upon said interlocking elements depending from said upwardly extending walls of said elongate base element.