Patent ID: 6474905
Filing Date: 2002-11-05
Classification: E01C

Abstract:
A mat for a temporary support structures used to construct roads and pads to support heavy equipment, said mat comprising:(a) a bottom ply; said bottom ply including a first board section having a first end and a second end; said bottom ply including a second board section extending parallel to said first board section of said bottom ply; said second board section of said bottom ply having a first end positioned conterminous with said first end of said first board section of said bottom ply and a second end positioned intermediate said first and second ends of said first board section of said bottom ply; said bottom ply including a third board section extending parallel to said first board section of said bottom ply; said third board section of said bottom ply having a first end positioned intermediate said first and second ends of said first board section of said bottom ply and a second end positioned conterminous with said second end of said first board section of said bottom ply; said third board section of said bottom ply being aligned with said second board section of said bottom ply; said bottom ply having a bottom gap formed between said second end of said second board section of said bottom ply and said first end of said third board section of said bottom ply; said bottom ply including a fourth board section extending parallel to said first board section of said bottom ply; said fourth board section of said bottom ply having a first end positioned conterminous with said first end of said first board section of said bottom ply and a second end positioned conterminous with said second end of said first board section of said bottom ply; said second and third board sections of said bottom ply being positioned intermediate said first and fourth board sections of said bottom ply; and (b) a top ply; said top ply including a first board section having a first end and a second end; said top ply including a second board section having a first end and a second end; said first board section of said top ply being attached to and extending perpendicular to said first, second and fourth board sections of said bottom ply adjacent said first ends of said first, second and fourth board sections of said bottom ply; said second board section of said top ply being attached to and extending perpendicular to said first, third and fourth board sections of said bottom ply adjacent said second ends of said first, third and fourth board sections of said bottom ply; said top ply having a top gap formed between said first and second board sections of said top ply; said top gap overlying said bottom gap.