VESSEL AND CLOSURE WITH INTERLOCKING SHEAR RING JOINT

摘要

A vessel with an opening walled thereabout and having a rim projecting forward from a shelf portion on the inside of, and substantially lateral to, the wall, a groove in the shelf portion between the inner surface of the wall and the rim defining a shear ring between the groove and the inner surface wall, and a closure having a peripheral edge which fits inside the vessel rim and a projecting tongue on the inner side of the closure which mates with and fits in the groove in the vessel shelf.