Reduced gauge bottle cap

Abstract

A reduced gauged crown for a container opening includes a corrugated panel portion such that the corrugation strengthens the crown material and allows less material to be used for the crown than would be used for an uncorrugated bottle cap.

I claim: 
     
         1 . A crown for a container opening, the crown having a top portion, an inner portion contiguous with the top portion and the inner portion being formed into a panel, an outer portion contiguous with the top portion, the outer portion being formed into a skirt that descends from the top portion, the crown comprising corrugation formed in the panel. 
     
     
         2 . The crown of  claim 1 , wherein the corrugation comprises a recess that descends from the top to the panel. 
     
     
         3 . The crown of the  claim 1 , wherein the corrugation comprises one or more shapes formed in the panel. 
     
     
         4 . The crown of  claim 1 , wherein the crown is lightweight. 
     
     
         5 . A method for making a crow for a container, the method comprising:
 i. Shaping a sheet of crown material to provide a top portion, an inner portion contiguous with the top portion and formed into a panel, and an outer portion contiguous with the top portion and formed into a skirt that descends from the top portion; and   ii. forming corrugation in the panel.   
     
     
         6 . The method of  claim 5 , wherein the step of forming corrugation in the panel persists of forming a recess that descends from the top portion to the panel in the inner portion.