Patent ID: 8122670

Claim:
A system for setting a tile floor, the system comprising: a. a plurality of floor tile assemblies, each floor tile assembly comprising: i. a floor tile member including a top surface, a bottom surface and a perimeter thereabout; ii. a support member having a perimeter edge thereabout, wherein the support member is separate from the floor tile member, the support member is attached to the bottom surface of the floor tile member, said perimeter edge of the support member is located at the perimeter of the floor tile member or within the perimeter of the floor tile member, the support member is provided with at least one recess located by said perimeter edge of the support member and under the floor tile member, the support member includes a row of openings and/or a row of projections located in said at least one recess and extending in a direction perpendicular to said bottom surface of the floor tile member, b. a plurality of joining elements configured to interconnect adjacent floor tile assemblies, wherein each joining element comprises: i. a central beam; ii. a cross-beam extending perpendicularly to said central beam and having a bottom surface, wherein said cross-beam includes a row of openings and/or a row of projections located on either side of said central beam, and extending in a direction perpendicular to said bottom surface of said cross-beam, wherein, when the joining element interconnects two adjacent floor tile members: i. openings of the support member mate with projections of the joining element, or projections of the support member mate with openings of the joining element; ii. said central beam extends between said two adjacent floor tile members, and abuts the perimeters of said two adjacent floor tile members.