Method for filling container with fluid

Abstract

In order to accomplish the objects of the present invention, there is provided a method for filling containers with fluids. A method provides a container made of an elastic material, the container having an internal chamber and a neck with an opening. A plug is provided inside the chamber, the plug having a buoyancy that allows it to float when fluid is introduced into the chamber. A fluid is introduced into the chamber, causing the plug to float until the plug enters the neck and seals the neck.

What is claimed is: 
     
         1 . A method for filling a container with fluid, comprising the steps of:
 providing a container made of an elastic material, the container having an internal chamber and a neck with an opening;   providing a spherical plug inside the chamber, the plug having a buoyancy that allows it to float when fluid is introduced into the chamber; and   introducing a fluid into the chamber, causing the plug to float until the plug enters the neck and seals the neck.   
     
     
         2 . The method of  claim 1 , further including providing the plug with a dimension that is larger than the normal unstretched internal diameter of the neck. 
     
     
         3 . A method for filling a container with fluid, comprising the steps of:
 providing a container made of an elastic material, the container having an internal chamber and a neck with an opening, and wherein the neck has a narrowed region;   providing a spherical plug inside the chamber, the plug having a buoyancy that allows it to float when fluid is introduced into the chamber; and   introducing a fluid into the chamber, causing the plug to float until the plug enters the neck and is seated at the narrowed region to seal the neck.