Patent ID: 7028837

Claim:
A radiation-shielding container assembly comprising: an elongated body portion including an inner liner and an outer sheath surrounding the liner, the body portion further having a closed end, a free open end, an outer surface extending between the free open and closed ends and defining a central axis, an inner surface spaced radially inwardly from the outer surface, the inner liner including an outer body interface extending radially inwardly from the outer surface adjacent the open end, and a transition surface extending from the outer body interface toward the inner surface and defining a frusto-conical body surface surrounding the axis at the free open end of the body portion, and a cap portion securable to the body portion, the cap portion including an inner liner and an outer sheath surrounding the liner, the cap portion further including a closed end and a free open end spaced from the closed end, the inner liner of the cap portion at the free open end defining a frusto-conical cap surface surrounding the free open end and matingly engageable with the transition surface such that when the cap portion is secured to the body portion, the frusto-conical cap surface and the frusto-conical body surface overlap along a plane that is substantially perpendicular to the central axis.