Patent ID: 7828139

Claim:
A closure device for a drinking container that has a container opening communicating into a container inner space which is adapted to receive a drinking liquid therein, wherein said closure device is adapted to selectively close and open the container opening, and said closure device comprises: a chamber body defining an axis and including an inner wall, an outer wall, and first and second openings respectively at first and second opposite ends of said chamber body, wherein said inner wall bounds a receiving chamber therein, said outer wall coaxially surrounds said inner wall about said axis of said chamber body and said outer wall is spaced apart from said inner wall to form an annular space between said inner and outer walls, and said first and second openings respectively communicate into said receiving chamber at said opposite ends of said chamber body; a closure element that is attached or attachable to said chamber body and that selectively opens and closes said first opening; a cover element that is axially displaceable relative to said chamber body in an axial direction by an axial sliding motion along said axis to selectively open and close said second opening; an operating arrangement including a sliding ring that is axially slidably displaceable in said axial direction within said annular space, and plural connecting elements that connect said sliding ring with said cover element; and a manually operable operating element that is connected to said operating arrangement and extends outwardly through an opening in said outer wall.