| 摘要 |
Modifications are made to earlier like purpose containers, set forth in U.S. Pat. Nos. 3,438,562 and 3,917,154, to fill the commercial requirement for such containers which will perform some of the functions in a less demanding way at a lower cost. These modified containers are likewise used to transfer merchandise between distribution service centers and retail stores, while security sealed in either an expanded or a reduced volume configuration. The principal modification centers on making, from an original one piece planar structure and keeping them together as one handling unit, both the functioning components, of the bottom with its side walls, and the liner, which together double the strength of the effective overall side structures of the containers, but not the shorter end structures.
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