Closure cap comprising covering disc

Abstract

The invention relates to a closure cap ( 1 ) comprising a cap ( 2 ) and a cap base ( 3 ) in addition to an inlet ( 9 ) which is arranged in the base of the cap ( 3 ). Said inlet is closed by a membrane seal ( 4 ) which can easily be penetrated. Said closure cap also comprises a covering disk ( 7 ) which is arranged on the external side of the base of the cap ( 3 ) which covers the inlet ( 9 ) and the membrane seal ( 4 ). The aim of the invention is to produce a closure cap ( 7 ) which, according to a manipulation test, enables a container provided therewith to refilled in a precise manner, and whose membrane can be penetrated and which is easier, faster and more simple for the user to recognize. According to the invention, the covering disk ( 7 ) is transparent in at least one area covering the membrane seal ( 4 ).

1 . Closure cap ( 1 ) comprising a cap covering ( 2 ) and a cap base ( 3 ) as well as an access opening ( 9 ) in the cap base ( 3 ) which is sealed by an easily penetrable membrane seal ( 4 ), and comprising a covering disc ( 7 ) arranged on the outer side of the cap base and covering the access opening ( 9 ) with the membrane seal ( 4 ), characterised in that the covering disc ( 7 ) comprises a central transparent region covering the membrane seal ( 4 ) and a non-transparent region, and/or a region provided with an imprint or a printable region, at least partially surrounding the transparent region.  
   
   
       2 . Closure cap according to  claim 1 , characterised in that the covering disc is substantially circular and comprises a central circular window which is annularly surrounded by a non-transparent and/or printed or printable region.  
   
   
       3 . Closure cap according to  claim 2 , characterised in that the covering disc is glued to the outer side of the cap base.  
   
   
       4 . Closure cap according to  claim 3 , characterised in that the covering disc ( 7 ) is glued with the aid of an agent to the portion of the cap base ( 3 ) surrounding the access opening ( 9 ).  
   
   
       5 . Closure cap according to either  claim 3  or  claim 4 , characterised in that the covering disc ( 7 ) is fastened to the cap base ( 3 ) by such an adhesive which is no longer adhesive after the first detachment of the covering disc from the cap base.  
   
   
       6 . Closure cap according to any one of  claims 1  to  4 , characterised in that the covering disc comprises an unglued or partially glued-on tab.  
   
   
       7 . Closure cap according to any one of  claims 1  to  4 , characterised in that the access opening within the membrane seal ( 4 ) is sealed by an additional seal.  
   
   
       8 . Closure cap according to any one of  claims 1  to  4 , characterised in that the access opening ( 9 ) is formed by a cylindrical shoulder ( 6 ) issuing from the cap base.  
   
   
       9 . Closure cap according to  claim 8 , characterised in that the free end of the shoulder ( 6 ) is sealed by a plug.