Pressurized container for fluid

Abstract

A pressurized container for fluid is disclosed. The container has a dual-layered soft material and an inner valve plate acting on each other alternatingly to squeeze out the contents in the container. The valve plate is a plugging valve which is effectively isolating the contact of the content with the external, and allows fix amount squeezing of material. A lower valve plate is provided ON and OFF which allows the internal pressure within the container to increase if the container is squeezed so that the upper valve plate is open, and the contents of the container can be discharged.

1 - 3 . (canceled)  
   
   
       4 . A pressurized container for fluid comprising: 
 an external soft container having a neck provided with an opening, said external soft container having a lower portion provided with an air pore and a first valve plate mounted on an inner side of said external soft container and closably engaged with said air pore, said neck being formed with an inner circular slot and a lug extending inwardly from an inner side of said neck;    a top cover engaged with said top of said external soft container;    an inner soft pocket body fitted within said external soft container; and    a plugging valve having a top provided with a blocking plate, a bottom provided with a second valve plate, and an outer side provided with a circular peg, said plugging valve being fitted in said neck of said external soft container with said blocking plate positioned on a top of said neck and said circular peg engaged with said inner circular slot, said second valve plate closably engaged with said lug;    whereby when said external soft container is compressed, content in said inner soft pocket will be forced to push open said second valve plate and said first valve plate will keep closed, and when said external soft container is no longer compressed, the said external soft container will return to original shape and said first valve plate will be opened thereby enabling external air to be drawn into said external soft container to substitute space occupied by said content.