Patent ID: 9139325
Filing Date: 2015-09-22
Classification: B65D

Abstract:
1. A self righting fluid containing container adapted to self-right itself when empty from a fully reclining position on a supporting surface having a center of gravity and comprising: a base portion having a terminal end and a flat bottom at its terminal end and a hollow fluid holding interior; a neck portion integral with said base portion providing a one-piece container having a throughbore, said neck portion having a diameter from one side to the other; a tapered section having a throughbore interconnecting said throughbore through said neck portion to said interior of said base portion; a cap closing off said neck portion, an integral outwardly extending peripheral flange having a diameter across the flange from one side to the other, said flange diameter being greater than the neck portion diameter of said neck portion mounted on said neck portion; and a weighted member disposed in said base portion, the center of gravity of said container being located on one side of a critical line extending from a first point at an intersection of said base portion with said tapered section when said container is empty of fluid and is fully inclined on a supporting surface wherein said cap abuts against said supporting surface and said critical line extends generally normal to the plane of said supporting surface, said container having a centerline from said cap to said base portion, said center of gravity also being located along the centerline of said container, away from said critical line and toward said weighted member, said container movable to a self-righting position from its fully inclined position when empty, and wherein said critical line is vertical when the cap abuts against said supporting surface, wherein said base portion is a truncated hemispherical shaped section, the truncated base having a defined line where it interfaces the neck portion, and the neck portion from the defined interface line being a solely inwardly concave tapered curve from the interface line towards the centerline of the container as the neck is directed towards the cap.