Patent ID: 8251252

Claim:
A lift-top container comprising: (a) a vessel comprising a mouth defined by a rim lying substantially in the plane of the mouth and defining an upper portion of the container when upright, the vessel further comprising an exterior portion, and a generally downward-facing abutment projecting laterally from the exterior portion; (b) a lift-off cap having a seating member sized and configured to seat on the rim, wherein the seating member is a groove and the rim is seated within the groove; (c) a lock engaging the cap, the lock being rotatable with respect to the cap about an axis generally perpendicular to the rim, the lock comprising an upward-facing abutment normally biased to engage the downward-facing abutment of the vessel, preventing the cap from being lifted off; the lock being rotatable against the bias to disengage the abutments, permitting the cap to be lifted to open the container; the lock further comprising a skirt portion surrounding the lift-off cap, and having a bottom edge that extends below the lift-off cap when the lift-off cap is seated on the rim, the lock further comprising at least one spring integrally formed with the skirt portion of the lock.