Spray can with improved attachment feature for a protective cap

Abstract

A spray dispenser, includes a valve disk for attachment of a valve, with the valve disk including a valve dome and a collar in concentric surrounding relationship to the valve dome. A cap extends over the collar and is secured against axial displacement, for covering the valve, wherein the cap is connected to the collar by way of a form-fitting engagement so as to inhibit rotation of the cap relative to the collar.

What is claimed is:  
     
         1 . A spray dispenser, comprising: 
 a valve disk for attachment of a valve, said valve disk including a valve dome and a collar in concentric surrounding relationship to the valve dome; and    a cap, extending over the collar and secured against axial displacement, for covering the valve,    wherein the cap is connected to the collar by a form-fitting engagement to thereby inhibit rotation.    
     
     
         2 . The spray dispenser of    claim 1   , wherein the collar and the cap have cooperating engagement means.  
     
     
         3 . The spray dispenser of    claim 2   , wherein the collar has an annular lower edge formed with teeth for engagement with a shoulder of the cap, when the shoulder rests against the lower edge of the collar.  
     
     
         4 . The spray dispenser of    claim 2   , wherein the collar has an outside formed with fins directed outwards for impressing into a wall surface of the cap.  
     
     
         5 . The spray dispenser of    claim 4   , wherein the valve disk defines an axis, said fins extending in the direction of the axis of the valve disk.  
     
     
         6 . The spray dispenser of    claim 5   , wherein the collar has an annular lower edge, said fins extending from the lower edge of the collar.  
     
     
         7 . The spray dispenser of    claim 1   , wherein the collar has an outside wall formed with a knurling.  
     
     
         8 . The spray dispenser of    claim 1   , wherein the collar is provided has a dome-confronting inner side formed with fins.  
     
     
         9 . A valve disk for attachment of a valve of a spray dispenser, said valve disk comprising a valve dome and a collar in concentric surrounding relationship to the valve dome, said collar having a lower edge formed with teeth for realizing a form-fitting engagement with a protective cap to inhibit rotation of the cap after placement of the cap over the collar.  
     
     
         10 . The valve disk of    claim 9   , wherein the collar has fins directed outwards for penetration into a wall surface of the cap.  
     
     
         11 . The valve disk of    claim 10   , wherein the valve dome defines an axis, said fins extending in the direction of the axis of the valve dome.  
     
     
         12 . The valve disk of    claim 9   , wherein the fins extend from the lower edge of the collar.