Patent ID: 7641253
Filing Date: 2010-01-05
Classification: B60P,B60R

Abstract:
1. A method for adjusting the load rating of a shelf formed from a polymer material, the method comprising: providing at least one shelf formed from a polymer, said shelf having a bottom surface, a front wall, a back wall, and a pair of opposing side walls, said at least one shelf further comprising a plurality of straight slots extending upwardly from the bottom surface of the shelf and running between the side walls of the shelf; and selectively inserting at least one support bar within at least one of said plurality of slots, said support bar being dimensioned to fit within at least one of said plurality of shelves such that a surface of the support bar is coplanar with the bottom surface of the shelf so that both the surface of the support bar and the bottom surface of the shelf are positioned to rest on opposing shelf supports, wherein the load rating of the shelf is adjusted by removing or inserting support bars from the plurality of slots.