Abstract
According to the invention a drinking vessel ( 10 ) comprises a generally cylindrical container ( 11 ) adapted to contain liquid and a generally cylindrical lid ( 12 ) adapted to close the container. The lid comprises a generally cylindrical outer member ( 20 ), a generally cylindrical inner member ( 22 ) located within the outer member so as to define a generally cylindrical aperture ( 50 ) between the outer surface of the inner member and the inner surface of the outer member, and a generally cylindrical sealing element ( 21 ) located in the aperture. The sealing element normally forms a seal between the outer surface of the inner member and the inner surface of the outer member but is deformable by suction at the end of the aperture remote from the container so as to cause liquid within the container to flow, from the end of the aperture adjacent to the container, out through the aperture under the action of the suction.
Patent figures（8）
Source status & events
No source-status events are recorded.