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A modular tile for an access floor panel system wherein the tile includes a mechanism for positively locating the tile on an access floor panel so as to be replaceable and removable without the use of indexing tools or fixtures through the tile's bottom surface or the panel's top surface and having

A modular tile for an access floor panel system wherein the tile includes a mechanism for positively locating the tile on an access floor panel so as to be replaceable and removable without the use of indexing tools or fixtures through the tile's bottom surface or the panel's top surface and having a configuration which orients the tile to the access floor panel, the size of the tile being consistent and modular with each and every access floor panel in the access floor panel system.

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1. A modular tile and access floor panel assembly, comprising: a plurality of access floor panels of module size, each of said panels having a top surface portion, a side wall and a flange member extending from said side wall so as to directly contact said top surface portion wherein each of said

1. A modular tile and access floor panel assembly, comprising: a plurality of access floor panels of module size, each of said panels having a top surface portion, a side wall and a flange member extending from said side wall so as to directly contact said top surface portion wherein each of said panels has at least one positioning hole formed therein; a plurality of modular tiles, each of said modular tiles lying exclusively on said top surface portion of said panels and having an outer perimeter edge portion that is equal in width and length to that of each of said panels and engageable with said outer perimeter of said top surface portion of each of said panels, respectively; and means integrally disposed on a portion of each of said tiles and within said outer perimeter portion of each of said tiles for positioning, indexing and maintaining position modularity of said tiles relative to said top surface portion of each of said panels, respectively, said means for positioning, indexing and maintaining position modularity having a configuration which orients each of said tiles to each of said panels, respectively, such that each of said tiles is removable and replacable without the use of indexing tools or fixtures and each of said tiles is substantially of said panel module size wherein said means for positioning, indexing and maintaining position modularity of said tiles further comprises at least one form projection extending from said tile which indexes in said positioning hole formed in each of said panels wherein said means for positioning, indexing and maintaining position modularity of said tiles further comprises means operatively connected with each of said tiles and engageable with each of said panels for holding a perimeter portion of each of said tiles to said perimeter portion of each of said panels, respectively, and for preventing lifting and/or curling of each of said tiles along said perimeter thereof or at a corner thereof and wherein said holding means further comprises magnetic tape. 2. An assembly according to claim 1, wherein modularity of said panels is dimensionally consistent such that each of said tiles can be relocated on any of said panels so as to maintain a consistent modular interface. 3. An assembly according to claim 1, wherein said at least one form projection further comprises a plurality of form projections in a bottom surface portion of each of said tiles which indexes into said at least one positioning hole formed in each of said panels, respectively. 4. An assembly according to claim 1, wherein the modularity of each of said panels is dimensionally consistent such that each of said tiles can be relocated on any of said panels so as to maintain a constant modular interface. 5. An assembly according to claim 1, wherein each of said panels has at least one positioning offset formed along the periphery thereof and wherein said means for positioning, indexing and maintaining position modularity further comprises a rim projection extending from and along the periphery of each of said tiles which indexes in said positioning offset formed along the periphery of each of said panels. 6. A modular tile and access floor panel assembly, comprising: a plurality of access floor panels of module size, each of said panels having a top surface portion, a side wall and a flange member extending from said side walls so as to directly contact said top surface portion; a plurality of modular tiles, each of said tiles having an outer perimeter portion; and means disposed on a portion of each of said tiles and within said outer perimeter portion of each of said tiles for positioning, indexing and maintaining position modularity of said tiles relative to said top surface portion of each of said panels, respectively, said means for positioning, indexing and maintaining position modularity having a configuration which orients each of said tiles to each of said panels, respectively, such that each of such tiles is removable and replaceable without the use of indexing tools or fixtures, each of said tiles is substantially of said panel module size, and each of said tiles is positionable so as to overlap at least two of said panels; wherein said means for positioning, indexing and maintaining said position modularity of said tiles further comprises means operatively connected with each of said tiles and engageable with each of said panels for holding a perimeter portion of each of said tiles to said perimeter portion of each of said panels, respectively, for preventing lifting and/or curling of each of said tiles along said perimeter thereof or at a corner thereof; and wherein said holding means further comprises magnetic tape. 7. An assembly according to claim 6, wherein each of said panels has at least one positioning hole formed therein and wherein said means for positioning, indexing and maintaining position modularity of said tiles further comprises at least one formed projection extending from said tile which indexes in said positioning hole formed in each of said panels. 8. An assembly according to claim 6, wherein modularity of said panels is dimensionally consistent such that each of said tiles can be relocated on any of said panels so as to maintain a consistent modular interface. 9. An assembly according to claim 6, wherein each of said panels has at least one positioning hole formed therein and wherein said means for positioning, indexing and maintaining position modularity of said tiles further comprises a plurality of form projections in a bottom surface portion of each of said tiles which indexes into said at least one positioning hole formed in each of said panels, respectively. 10. An assembly according to claim 6, wherein the modularity of each of said panels is dimensionally consistent such that each of said tiles can be relocated on any of said panels so as to maintain a constant modular interface. 11. A modular tile and access floor panel assembly, comprising: a plurality of access floor panels of module size, each of said panels having a top surface portion, a side wall and a flange member extending from said side wall so as to directly contact said top surface portion wherein each of said panels has at least one positioning hole formed therein; a plurality of modular tiles, each of said modular tiles lying exclusively on said top surface portion of said panels and having an outer perimeter edge portion that is equal in width and length to that of each of said panels and engageable with said outer perimeter of said top surface portion of each of said panels, respectively; and means integrally disposed on a portion of each of said tiles and within said outer perimeter portion of each of said tiles for positioning, indexing and maintaining position modularity of said tiles relative to said top surface portion of each of said panels, respectively, said means for positioning, indexing and maintaining position modularity having a configuration which orients each of said tiles to each of said panels, respectively, such that each of said tiles is removable and replaceable without the use of indexing tools or fixtures and each of said tiles is substantially of said panel module size wherein said means for positioning, indexing and maintaining position modularity of said tiles further comprises at least one form projection extending from said tile which indexes in said positioning hole formed in each of said panels wherein modularity of said panels is dimensionally consistent such that each of said tiles can be relocated on any of said panels so as to maintain a consistent modular interface; said means for positioning, indexing and maintaining position modularity of said tiles further comprises means operatively connected with each of said tiles and engageable with each of said panels for holding a perimeter portion of each of said tiles to said perimeter portion of each of said panels, respectively, and for preventing lifting and/or curling of each of said tiles along said perimeter thereof or at a corner thereof; and wherein said holding means further comprises magnetic tape. 12. A modular tile and access floor panel assembly, comprising: a plurality of access floor panels of module size, each of said panels having a top surface portion, a side wall and a flange member extending from said side wall so as to directly contact said top surface portion wherein each of said panels has at least one positioning hole formed therein; a plurality of modular tiles, each of said modular tiles lying exclusively on said top surface portion of said panels and having an outer perimeter edge portion that is equal in width and length to that of each of said panels and engageable with said outer perimeter of said top surface portion of each of said panels, respectively; and means integrally disposed on a portion of each of said tiles and within said outer perimeter portion of each of said tiles for positioning, indexing and maintaining position modularity of said tiles relative to said top surface portion of each of said panels, respectively, said means for positioning, indexing and maintaining position modularity having a configuration which orients each of said tiles to each of said panels, respectively, such that each of said tiles is removable and replaceable without the use of indexing tools or fixtures and each of said tiles is substantially of said panel module size wherein said means for positioning, indexing and maintaining position modularity of said tiles further comprises at least one form projection extending from said tile which indexes in said positioning hole formed in each of said panels; said means for positioning, indexing and maintaining position modularity of said tiles further comprises means operatively connected with each of said tiles and engageable with each of said panels for holding a perimeter portion of each of said tiles to said perimeter portion of each of said panels, respectively, and for preventing lifting and/or curling of each of said tiles along said perimeter thereof or at a corner thereof; and wherein said holding means further comprises pressure sensitive tape. 13. A modular tile and access floor panel assembly, comprising: a plurality of access floor panels of module size, each of said panels having a top surface portion, a side wall and a flange member extending from said side wall so as to directly contact said top surface portion wherein each of said panels has at least one positioning hole formed therein; a plurality of modular tiles, each of said modular tiles lying exclusively on said top surface portion of said panels and having an outer perimeter edge portion that is equal in width and length to that of each of said panels and engageable with said outer perimeter of said top surface portion of each of said panels, respectively; and means integrally disposed on a portion of each of said tiles and within said outer perimeter portion of each of said tiles for positioning, indexing and maintaining position modularity of said tiles relative to said top surface portion of each of said panels, respectively, said means for positioning, indexing and maintaining position modularity having a configuration which orients each of said tiles to each of said panels, respectively, such that each of said tiles is removable and replaceable without the use of indexing tools or fixtures and each of said tiles is substantially of said panel module size wherein said means for positioning, indexing and maintaining position modularity of said tiles further comprises at least one form projection extending from said tile which indexes in said positioning hole formed in each of said panels; and wherein said at least one projection further comprises a projection of conductive material for providing resistance to static electricity build-up on a surface portion of said tile. 14. A modular tile and access floor panel assembly, comprising: a plurality of access floor panels of module size, each of said panels having a top surface portion, a side wall and a flange member extending from said side walls so as to directly contact said top surface portion; a plurality of modular tiles, each of said tiles having an outer perimeter portion; and means disposed on a portion of each of said tiles and within said outer perimeter portion of each of said tiles for positioning, indexing and maintaining position modularity of said tiles relative to said top surface portion of each of said panels, respectively, said means for positioning, indexing and maintaining position modularity having a configuration which orients each of said tiles to each of said panels, respectively, such that each of such tiles is removable and replaceable without the use of indexing tools or fixtures, each of said tiles is substantially of said panel module size, and each of said tiles is positionable so as to overlap at least two of said panels; wherein modularity of said panels is dimensionally consistent such that each of said tiles can be relocated on any of said panels so as to maintain a consistent modular face; said means for positioning, indexing and maintaining position modularity of said tiles further comprises means operatively connected with each of said tiles and engageable with each of said panels for holding a perimeter portion of each of said tiles to said perimeter portion of each of said panels, respectively, and for preventing lifting and/or curling of each of said tiles along said perimeter thereof or at a corner thereof; and wherein said holding means further comprises magnetic tape. 15. A modular tile and access floor panel assembly comprising: a plurality of access floor panels of module size, each of said panels having a top surface portion, a side wall and a flange member extending from said side walls so as to directly contact said top surface portion; a plurality of modular tiles, each of said tiles having an outer perimeter portion; and means disposed on a portion of each of said tiles and within said outer perimeter portion of each of said tiles for positioning, indexing and maintaining position modularity of said tiles relative to said top surface portion of each of said panels, respectively, said means for positioning, indexing and maintaining position modularity having a configuration which orients each of said tiles to each of said panels, respectively, such that each of such tiles is removable and replaceable without the use of indexing tools or fixtures, each of said tiles is substantially of said panel module size, and each of said tiles is positionable so as to overlap at least two of said panels; wherein modularity of said panels is dimensionally consistent such that each of said tiles can be relocated on any of said panels so as to maintain a consistent modular face; said means for positioning, indexing and maintaining position modularity of said tiles further comprises means operatively connected with each of said tiles and engageable with each of said panels for holding a perimeter portion of each of said tiles to said perimeter portion of each of said panels, respectively, and for preventing lifting and/or curling of each of said tiles along said perimeter thereof or at a corner thereof; and wherein said holding means further comprises pressure sensitive tape. 16. A modular tile and access floor panel assembly comprising: a plurality of access floor panels of module size, each of said panels having a top surface portion, a side wall and a flange member extending from said side walls so as to directly contact said top surface portion; a plurality of modular tiles, each of said tiles having an outer perimeter portion; and means disposed on a portion of each of said tiles and within said outer perimeter portion of each of said tiles for positioning, indexing and maintaining position modularity of said tiles relative to said top surface portion of each of said panels, respectively, said means for positioning, indexing and maintaining position modularity having a configuration which orients each of said tiles to each of said panels, respectively, such that each of such tiles is removable and replaceable without the use of indexing tools or fixtures, each of said tiles is substantially of said panel module size, and each of said tiles is positionable so as to overlap at least two of said panels; wherein modularity of said panels is dimensionally consistent such that each of said tiles can be relocated on any of said panels so as to maintain a consistent modular face; said means for positioning, indexing and maintaining position modularity of said tiles further comprises means operatively connected with each of said tiles and engageable with each of said panels for holding a perimeter portion of each of said tiles to said perimeter portion of each of said panels, respectively, and for preventing lifting and/or curling of each of said tiles along said perimeter thereof or at a corner thereof; and wherein said means for positioning, indexing and maintaining position modularity of each of said tiles further comprises at least one form projection extending from said tile and wherein said at least one projection further comprises a projection of conductive material for providing resistance to static electricity build-up on a surface portion of said tile, said means for indexing, positioning and maintaining position modularity of each of said tiles having a configuration which orients each of said tiles to each of said panels, respectively, such that each of said tiles is removable and replaceable without the use of indexing tools or fixtures. 17. A modular tile and access floor panel assembly, comprising: a plurality of access floor panels of module size, each of said panels having a top surface portion, a side wall and a flange member extending from said side walls so as to directly contact said top surface portion; a plurality of modular tiles, each of said tiles having an outer perimeter portion; and means disposed on a portion of each of said tiles and within said outer perimeter portion of each of said tiles for positioning, indexing and maintaining position modularity of said tiles relative to said top surface portion of each of said panels, respectively, said means for positioning, indexing and maintaining position modularity having a configuration which orients each of said tiles to each of said panels, respectively, such that each of such tiles is removable and replaceable without the use of indexing tools or fixtures, each of said tiles is substantially of said panel module size, and each of said tiles is positionable so as to overlap at least two of said panels; wherein said means for positioning, indexing and maintaining position modularity of said tiles further comprises means operatively connected with each of said tiles and engageable with each of said panels for holding a perimeter portion of each of said tiles to said perimeter portion of each of said panels, respectively, and for preventing lifting and/or curling of each of said tiles along said perimeter thereof or at a corner thereof; and wherein said holding means further comprises pressure sensitive tape. 18. A modular tile and access floor panel assembly, comprising: a plurality of access floor panels of module size, each of said panels having a top surface portion, a side wall and a flange member extending from said side wall so as to directly contact said top surface portion wherein each of said panels has at least one positioning hole formed therein; a plurality of modular tiles, each of said modular tiles lying exclusively on said top surface portion of said panels and having an outer perimeter edge portion that is equal in width and length to that of each of said panels and engageable with said outer perimeter of said top surface portion of each of said panels, respectively; and means integrally disposed on a portion of each of said tiles and within said outer perimeter portion of each of said tiles for positioning, indexing and maintaining position modularity of said tiles relative to said top surface portion of each of said panels, respectively, said means for positioning, indexing and maintaining position modularity having a configuration which orients each of said tiles to each of said panels, respectively, such that each of said tiles is removable and replaceable without the use of indexing tools or fixtures and each of said tiles is substantially of said panel module size wherein said means for positioning, indexing and maintaining position modularity of said tiles further comprises at least one form projection extending from said tile which indexes in said positioning hole formed in each of said panels; wherein said means for positioning, indexing and maintaining position modularity of said tiles further comprises means operatively connected with each of said tiles and engageable with each of said panels for holding a perimeter portion of each of said tiles to said perimeter portion of each of said panels, respectively, and for preventing lifting and/or curling of each of said tiles along said perimeter thereof or at a corner thereof; and wherein said holding means further comprises magnetic tape.