US Patent 10232980 Modular cylindrical storage systems and methods

A storage system has a primary container assembly and a secondary container assembly. The primary container assembly has a main container portion, a first end portion, and a second end portion. The first and second end portions are detachably attached to the main container portion to define a chamber. The secondary container assembly comprising at least one secondary container. The secondary container assembly is sized and dimensioned to be stored within the main chamber.