Spraying apparatus for introducing substances into the body or applying substances onto the body

Abstract

A spray can for introducing or applying of substances into or onto the body is provided. The spray can includes an elastic container of filler substance serving as an energy storage and a valve unit. The value unit has a connection part for inserting into the neck of the container so that contact surfaces of the neck and of the connection part are applied against each other. At least one of the two elements has a projection in the region of the contact surfaces, which engages with corresponding projections of the other of the two elements or engages with complementary recesses of the other of the two elements. The neck of the container and the connection part are joined together as a kind of snap closure. At least one of the pairs of contact surfaces broadens along the lengthwise axis in one or the other direction, where the broadening runs conically.

1 . A spray can for introducing or applying of substances into or onto the body; 
 1.1 with an elastic container ( 1 ) of filler substance, serving as an energy storage;    1.2 with a valve unit ( 4 ), which has a connection part ( 2 ) for inserting into the neck of the container ( 1 ), so that contact surfaces of the neck and of the connection part ( 2 ) are applied against each other;    1.3 in the region of the contact surfaces at least one of the two elements has a projection, which engages with corresponding projections of the other of the two elements, or engages with complementary recesses of the other of the two elements;    1.4 the neck of the container ( 1 ) and the connection part ( 2 ) are joined together as a kind of snap closure (1.1, 1.3);    1.5 at least one of the pairs of contact surfaces broadens along the lengthwise axis in one or the other direction;    1.6 the broadening runs conically.    
     
     
         2 . The spray can according to  claim 1 , further characterized in that the two pairs of contact surfaces are broadened in opposite directions.  
     
     
         3 . The spray can according to  claim 1 , further characterized in that the form closure between valve unit ( 4 ) and neck of the container ( 1 ) is produced by a thread.  
     
     
         4 . The spray can according to  claim 3 , further characterized in that the thread is a buttress thread.  
     
     
         5 . The spray can according to  claim 1 , further characterized in that the neck of the container ( 1 ) for filler substance is surrounded by a clamping ring ( 5 ).  
     
     
         6 . The spray can according to  claim 1 , further characterized in that a form closure is also produced between neck of the container ( 1 ) for filler substance and clamping ring ( 5 ), corresponding to the form closure between the neck of the container ( 1 ) and the valve unit ( 4 ).