Pressurized package

Abstract

A pressurized package made of plastic comprising an outer container and an inner container with material held therein under pressure. The package has a viewing window to allow users to view the inner container to determine the presence of material, and an illumination region generally opposite said viewing window.

What is claimed is: 
     
         1 . A pressurized package for dispensing a material therefrom, said package comprising:
 an outer container having a viewing window and an illumination region positioned generally opposite said viewing window,   an inner container within said outer container, said inner container containing a material under pressure;   a discharge for dispensing material from said package though a valve; and   a plastic valve cup intermediate said inner container and said discharge, said valve cup being joined to said inner container in fluid tight or vapor tight relationship, and joined to the outer container in fluid tight or vapor tight relationship.   
     
     
         2 . The pressurized package of  claim 1 , wherein said viewing window is clear or translucent. 
     
     
         3 . The pressurized package of  claim 2 , wherein said viewing window has a width of from about 2% to about 12% of the circumference of said outer container, preferably from about 4% to about 10%, more preferably from about 5 to about 8%. 
     
     
         4 . The pressurized package of  claim 2 , wherein said viewing window has a central point, and said illumination region spans from 120° to about 240° from said central point, preferably from about 150° to about 210°. 
     
     
         5 . The pressurized package of  claim 4 , wherein said outer package forms at least one illumination portal. 
     
     
         6 . The pressurized package of  claim 5 , wherein at least half of said illumination portal is positioned within said illumination region, preferably at least 75%, more preferably at least 90%, even more preferably the entire illumination portal is positioned within said illumination region. 
     
     
         7 . The pressurized package of  claim 5 , wherein said illumination portal is clear or translucent. 
     
     
         8 . The pressurized package of  claim 7 , wherein said viewing window has an average width of from about 0.5 cm to about 1 cm, preferably from about 0.6 cm to about 0.8 cm. 
     
     
         9 . The pressurized package of  claim 8 , wherein said illumination portal has an average width that is greater than the average width of said viewing window, preferably at least 1.5 times greater, more preferably at least 2× greater. 
     
     
         10 . The pressurized package of  claim 5 , wherein at least one of said viewing window and said illumination portals has a flat outer surface. 
     
     
         11 . The pressurized package of  claim 1 , wherein said viewing window has a greatest length which is from about 50% to about 100% of the length of said outer container, preferably from about 65% to about 85%. 
     
     
         12 . The pressurized package of  claim 1 , wherein said outer container comprise an reflective interior surface. 
     
     
         13 . The pressurized package of  claim 12 , wherein reflective interior surface does not cover the entirety of the interior of the outer container. 
     
     
         14 . The pressurized package of  claim 13 , wherein said outer container further comprises a non-reflective interior surface, wherein at least half of said non-reflective interior surface is present within said illumination region. 
     
     
         15 . The pressurized package of  claim 1 , further comprising a nozzle wherein actuation of said nozzle causes material to pass through said dispenser, wherein said outer container forms a neck and said nozzle is attached to said container atop said neck, and said pressurized package further comprising at least one overhead illumination portal formed in said nozzle, said neck, said valve cup, or a combination thereof. 
     
     
         16 . The pressurized package of  claim 1 , wherein said inner container is clear or translucent. 
     
     
         17 . The pressurized package of  claim 16 , wherein said material is opaque. 
     
     
         18 . The pressurized package of  claim 1 , wherein said inner container is opaque. 
     
     
         19 . The pressurized package of  claim 1 , further comprising a label having at least one indicia applied over a portion of said outer package, wherein at least a portion of said label covers a portion of said viewing window. 
     
     
         20 . A method of method of representing the level of material within a pressurize package of  claim 1 , comprising the steps of:
 a. providing light through said illumination region to illuminate said inner container; and   b. exposing a portion of said inner container through said viewing window.