EXPANSIBLE CARRYING CASE

摘要

Expansible carrying case in which parallel side walls of the case may move apart by virtue of a simple gusset extending continuously along walls of the case that are transverse to the parallel side walls. Expansion of the gusset is limited by rows of stitching along each of the gusset folds. The gusset contracts automatically when the expanding pressure is relieved and remains contracted without requiring auxiliary fasteners.