Patent ID: 6024245
Filing Date: 2000-02-15
Classification: B29C,B29K,B29L,B65D,Y10S

Abstract:
A one-piece blow-molded closed plastic drum, comprising:a generally cylindrical body portion defining an outer cylindrical surface and an inside surface:a bottom integrally-molded with a lower end of said cylindrical body portion;a head portion integrally-molded with an upper end of said cylindrical body portion and defining a top having an inside surface and a transition area extending around and connected at a lower end to an upper end of said body portion and connected at an upper end to said top;a handling ring integrally-molded with said drum and having a leg member extending upwardly from Generally said upper end of said transition area and a grippable member extending generally outwardly from an upper end of said leg member to define an outer circumferential surface on said handling ring; andsaid transition area having an inside curved surface below the connection to said leg member of said handling ring and with at least one predetermined radius so that no acute angles are formed between said inside surfaces of said top, said transition area and said body portion, said transition area inside curved surface defining a double ogee with three predetermined radii.