Patent ID: 7070065
Filing Date: 2006-07-04
Classification: A47G

Abstract:
1. A closure assembly for an opening of a drinking vessel, comprising: a cap including a hollow mouthpiece protruding from the cap and having a first aperture at a free end of the mouthpiece through which liquid in the vessel can flow out upon application of suction to the mouthpiece; a support located inside the mouthpiece and having at least one second aperture that, in conjunction with the first aperture, defines a path for flow of the liquid out of the vessel; and a valve member comprising a resiliently deformable diaphragm located between the mouthpiece and the support, the diaphragm having a third aperture in the path and normally bearing resiliently against the support to close the third aperture with the support and to close the second aperture with the diaphragm, thereby blocking the path, wherein, upon the application of suction at the mouthpiece, the diaphragm is deformed and moves away from the support so that the second and third apertures are opened to permit the flow of the liquid out of the vessel.