| 摘要 |
<p>A reusable sealable plastic drum (100) incorporates a plastic drum body (102) with a convex upper chime (110) having a convex chime radius. The plastic lid (114) has an annular, peripheral mat ing channel (118) sized to accept the upper chime. The channel has an inner wall (120), an outer wall (122), a mouth for receiving the upper chime, and a base surface (124) for engaging the upper chime. The base surface has a concave radius, which is matched to the convex chime radius. A lockband surrounds the outer wall (130). Tightening of the lockband causes the concave base radius to fully engage the convex chime radius in a sealing relationship.</p> |
