초록 ▼

A closure ring for use with an open head drum utilizes a reduced diameter portion proximal each end thereof to increase the force required to draw the end of the ring together about the drum head and an associated lid and gasket, thereby increasing the compressive force applied to the gasket in the

A closure ring for use with an open head drum utilizes a reduced diameter portion proximal each end thereof to increase the force required to draw the end of the ring together about the drum head and an associated lid and gasket, thereby increasing the compressive force applied to the gasket in the reduced diameter region resulting in greater sealing effect at the junction of the ring ends.

대표청구항 ▼

An improved ring for securing and sealing a lid to an open head drum, said open head drum having an outwardly extending upper edge and said lid having an annular seat formed thereon for engagement on said upper edge, said annular seat holding a compressible gasket in position on said upper edge to f

An improved ring for securing and sealing a lid to an open head drum, said open head drum having an outwardly extending upper edge and said lid having an annular seat formed thereon for engagement on said upper edge, said annular seat holding a compressible gasket in position on said upper edge to form a seal, said improved ring comprising, a circular member split on one radian thereof to form a pair of adjacent ends, said circular member having a concave inner surface for encasing the outer peripheral portion of said lid and said upper edge of said open head drum and means for urging said adjacent ends toward each other, each end of said pair of adjacent ends having a radially projecting reduced diameter portion.