Miniature cap having a skirt which is to be inserted in a filling opening of a bottle

Abstract

Cap comprising a base surface having a dispensing opening, closure means enabling the dispensing opening to be closed or opened, retaining means for holding the cap in position relative to a bottle, and a skirt which is to be inserted tightly in the filling opening of the bottle. The skirt also has a substantially cylindrical outer surface extending continuously around the entire skirt. The retaining means comprise a resiliently deformable peripheral protuberance which is arranged in the vicinity of the free end of the skirt.

1 . Cap comprising: 
 a base surface having a dispensing opening,    closure means enabling the dispensing opening to be closed or opened,    retaining means for holding the cap in position relative to a bottle or the like having a filling opening,    a skirt which is to be inserted in the filling opening of the bottle, the said skirt extending in a direction of extension between a free end and an opposite end integral with the base surface and having an inner surface defining a dispensing duct leading in the vicinity of the said opposite end to the dispensing opening,    wherein:    the skirt also has a substantially cylindrical outer surface extending continuously around the entire skirt,    the retaining means comprise a resiliently deformable rounded peripheral boss arranged in the vicinity of the free end of the skirt,    with the exception of the skirt, the whole of the cap extends on the same side relative to a plane which is perpendicular to the direction of extension of the skirt and which passes through the retaining means.    
     
     
         2 . Cap according to  claim 1 , wherein the closure means comprise a plug integrated in a cover which is articulated relative to the base surface by means of a film hinge.  
     
     
         3 . Cap according to  claim 2 , wherein the base surface and/or the cover has (have) on the inside, in the immediate vicinity of the hinge, a bevel shape providing clearance.  
     
     
         4 . Cap according to  claim 1 , wherein the outer surface of the skirt is free from slits.  
     
     
         5 . Cap according to  claim 1 , of rigid thermoplastic resin.  
     
     
         6 . Assembly comprising a bottle having a finish defining a filling opening and a cap comprising: 
 a base surface having a dispensing opening,    closure means enabling the dispensing opening to be closed or opened,    retaining means for holding the cap in position relative to the bottle,    a skirt inserted in the filling opening of the bottle, the said skirt extending in a direction of extension between a free end and an opposite end integral with the base surface and having an inner surface defining a dispensing duct leading in the vicinity of the said opposite end to the dispensing opening, wherein: 
 the skirt also has a substantially cylindrical outer surface extending continuously around the entire skirt and coming into close contact with an inner surface of the filling opening, over an annular contact region, in order to provide leak-tightness between the skirt and the bottle,  
 the retaining means comprise a resiliently deformable protuberance arranged at a distance from the said annular contact region.  
   
     
     
         7 . Assembly according to  claim 6 , wherein the said resiliently deformable protuberance is constituted by a peripheral boss free from sharp edges.  
     
     
         8 . Assembly according to  claim 6 , wherein the bottle has a flat upper surface and the base surface of the cap projects entirely from that upper surface.  
     
     
         9 . Assembly according to  claim 6 , wherein the closure means comprise a plug integrated in a cover articulated relative to the base surface by means of a film hinge.  
     
     
         10 . Assembly according to  claim 9 , wherein, since the base surface is arranged above an upper surface of the bottle, when the cover is in a closed position such that the plug closes the dispensing opening, the cover has, on the side opposite the film hinge, a gripping flange extending beyond the base surface and opposite a marginal region of the upper surface of the bottle.  
     
     
         11 . Assembly according to  claim 6 , wherein the said resiliently deformable protuberance constitutes the only means of retaining the cap relative to the bottle.  
     
     
         12 . Assembly according to  claim 6 , constituting a single monobloc piece.