Patent ID: 7549556
Filing Date: 2009-06-23
Classification: A47G,Y10T

Abstract:
1. A drinking vessel comprising a generally cylindrical container adapted to contain liquid and a generally cylindrical lid adapted to close the container, in which the lid comprises a generally cylindrical outer member, a generally cylindrical inner member located radially within the outer member and together defining an annular upstanding lip extending around substantially the entire periphery of the upper surface of the lid, wherein a generally cylindrical aperture extends through the lip between the outer surface of the inner member and the inner surface of the outer member, and a sealing member of resiliently flexible material, said sealing member having an annular part located in said aperture and adapted to normally form a seal across said aperture sealing against the outer surface of the inner member and the inner surface of the outer member and to be deformable by suction out of sealing engagement with the inner surface of the outer member at the end of the aperture remote from the container so as to create an opening between the inner surface of the outer member and the outer surface of the annular part of said sealing member and to allow liquid within the container to flow, from the end of the aperture adjacent to the container, out through the opening solely under the action of suction thereto.