Assembly of a venting mouth and a cooperating cap for being mounted to a container

Abstract

An assembly of a venting mouth and a cooperating cap for being mounted to a container, wherein the cap is provided with a cap aperture and the venting mouth is provided with a venting mouth aperture. The cap is movable with respect to the venting mouth between an open condition in which a flow path between the venting mouth aperture and the cap aperture exists and a closed condition in which the flow path is closed.

What is claimed is: 
     
         1 . An assembly of a venting mouth and a cooperating cap for being mounted to a container, wherein the cap is provided with a cap aperture and the venting mouth is provided with a venting mouth aperture, wherein the cap is movable with respect to the venting mouth between an open condition in which a flow path between the venting mouth aperture and the cap aperture exists and a closed condition in which the flow path is closed. 
     
     
         2 . The assembly according to  claim 1 , wherein in the closed condition the cap and the venting mouth contact each other at a sealing region which is located between the venting mouth aperture and the cap aperture. 
     
     
         3 . The assembly according to  claim 2 , wherein the venting mouth has a tubular portion including a venting plate at an inner side thereof, which venting plate is provided with the venting mouth aperture. 
     
     
         4 . The assembly according to  claim 3 , wherein the venting plate is located at an axial end of the tubular portion of the venting mouth. 
     
     
         5 . The assembly according to  claim 4 , wherein the cap has a closure plate opposite to the venting plate, which closure plate is provided with the cap aperture. 
     
     
         6 . The assembly according to  claim 5 , wherein the sealing region surrounds the venting mouth aperture and extends up to the cap aperture. 
     
     
         7 . The assembly according to  claim 6 , wherein the venting mouth aperture is surrounded by a rim at the sealing region and the cap is shaped such that in the closed condition the cap and the venting mouth contact each other at the rim and inside the rim. 
     
     
         8 . The assembly according to  claim 1 , wherein the cap and the venting mouth are adapted such that the cap moves away from the venting mouth when the cap is moved with respect to the venting mouth from the closed condition to the open condition, wherein a retaining system prevents the cap from being separated from the venting mouth in the open condition. 
     
     
         9 . The assembly according to  claim 8 , wherein the cap is a screw cap. 
     
     
         10 . The assembly according to  claim 9 , wherein the retaining system comprises cooperating blocking elements at cooperating threads of the venting mouth and the screw cap. 
     
     
         11 . The assembly according to  claim 10 , wherein the blocking elements are adapted such that they snap with respect to each other when turning the cap in a direction from the open condition to the closed condition and block with respect to each other when turning the cap in opposite direction. 
     
     
         12 . The assembly according to  claim 11 , wherein the blocking elements are wedge-shaped projections which are located between neighbouring ribs of the threads of the venting mouth and the screw cap. 
     
     
         13 . The assembly according to  claim 1 , wherein the cap is a screw cap. 
     
     
         14 . The assembly according to  claim 1 , wherein the venting mouth has a tubular portion including a venting plate at an inner side thereof, which venting plate is provided with the venting mouth aperture. 
     
     
         15 . The assembly according to  claim 3 , wherein the cap has a closure plate opposite to the venting plate, which closure plate is provided with the cap aperture.