Container
AssigneeGaylord Regethermic Canada Ltd.
InventorJean-Pierre Boudreault
Life of this patent
Estimating the term…
Abstract
A lid is described wherein the bowl has a rim with a groove extending about the rim and open to the top. The lid includes a downwardly extending rib coinciding with the groove. The radius of the rib is smaller than the radius of the groove such that when liquid is present in the groove, surface tension will cause adhesion between the diverging surfaces of the groove and the rib.
Claims5
A container, including a bowl, the bowl having a rim, a continuous groove defined along the full extent of the rim and opening upwardly, at least the root of the groove being arcuate and having a first radius of curvature, a lid adapted to sit loosely on the bowl, the lid having a continuous rib on one surface thereof resting in the groove, the rib having a height at least greater than the depth of the groove, such that the lid is solely supported by the rib in the groove, at least the crest of the rib being convexly arcuate in cross-section and having a second radius of curvature smaller than the first radius of curvature, so that there is a linear contact between the rib and the groove;
- such that when the bowl contains a liquid and the lid is seated on the rim, the surface tension of the liquid present in the groove between the rib and the groove at their diverging surfaces will provide a continuous seal on both sides of the linear contact between the rib and the groove so as to enhance the retention of the rib of the lid to the groove on the bowl.
Dependencies are inferred from the claim text.