This is an improved container having slidable storage cases propelled by a leaf spring into an open position after pushing down on a front catch. The container comprises a front half, a rear half and a handle, each molded from plastic. The front half and the rear half of the container are ultrasonically...http://www.google.es/patents/US5426885?utm_source=gb-gplus-sharePatente US5426885 - Tackle tote