Liquid dispenser with relief valve opening to provide uniform drainage

Abstract

A container for liquids such as soft drinks, and the like is provided with a relief bore valve which is formed as a small scribed area at the top of the container. When the ring-pull tab of the container is depressed, it will puncture the scribed area to form the relief bore valve. This will slowly release pressurized carbonation within the container, thereby avoiding the usual explosive release of gas and liquids. Upwardly lifting the ring-pull tab in the reverse direction will then puncture the larger, scribed area for drinking use. Use of the relief bore valve also enables a more uniform, uninterrupted drainage of the liquid while drinking, while still maintaining most of the original carbonation.

1 . A liquid dispenser means for containing carbonated and non-carbonated beverages, and the like, including:
 a.) a top portion providing a pouring spout scribe, a bore relief valve scribe means, and a pouring spout;   b.) a ring-pull tab pivotally mounted on the top portion, a perforation flange means mounted on the pull-tab for depressing and puncturing the bore relief scribe means, thereby forming a bore relief valve means on the top portion, and a perforation flange defined on the ring-pull tab for upwardly pivoting the ring-pull tab to puncture the pouring spout scribe, and form a pouring spout, whereby; initially puncturing the bore relief scribe means prior to puncturing the pouring spout scribe slowly releases carbonation from the beverage, thereby retaining beverage carbonation and quality until consumption is terminated, while enabling a more uniform removal of liquid from the dispenser during consumption or pouring.   
   
   
       2 . The liquid dispenser means of  claim 1 , whereby the relief bore valve means enables removal of viscous, non-carbonated liquids from the liquid dispenser means. 
   
   
       3 . A ring-pull tab means for pivoting mounting on a top portion of a liquid dispenser means, the ring-pull tab means including a perforation flange means for initially depressing and puncturing into a scribe area means to form a relief valve means , the ring-pull tab means being then upwardly pivoted for subsequently puncturing a pouring spout scribe to form a pouring spout, thereby enabling a more uniform removal of liquid from the dispenser during consumption or pouring. 
   
   
       4 . The ring-pull tab means of  claim 3 , in which puncturing the scribe area means to form the bore relief valve means enables a slow release of carbonation from a beverage contained therein, thereby retaining beverage carbonation and beverage quality until consumption or pouring is terminated. 
   
   
       5 . A method for depressurizing a beverage can means containing a carbonated liquid, by providing a top portion means defining a scribe means for a bore relief valve means and defining a scribe for a pouring spout means, a ring-pull tab pivotally mounted on the top portion means, a perforation flange means mounted on the pull-tab for depressing and puncturing the bore relief scribe means, thereby forming a bore relief valve means on the top portion, and a perforation flange defined on the ring-pull tab for upwardly pivoting the ring-pull tab to puncture the pouring scribe and form the pouring spout, the method comprising: initially puncturing the bore relief scribe means to slowly release carbonation from the beverage, and subsequently puncturing the pouring spout scribe means to form the pouring spout, thereby retaining beverage carbonation and quality until consumption is terminated, while enabling a more uniform removal of liquid from the dispenser during consumption or pouring. 
   
   
       6 . The method of  claim 5 , comprising a ring-pull tab means for pivotally mounting onto the top portion of the beverage can means, the ring-pull tab means including a perforation flange means for initially depressing and puncturing the relief scribe means to form the relief valve means, the ring-pull tab means being then upwardly pivoted for subsequently puncturing the pouring spout scribe means to form the pouring spout.