Patent ID: 8540105

Claim:
An improved liquid storage unit ( 1 ) with a large opening capability includes a container formed of a cylindrical body closed by a lid plate ( 4 ) at its top and a bottom plate ( 2 ) at its bottom-comprising: a break away section ( 4 a ) defined by a break line ( 8 ) formed in said lid plate ( 4 ) and a socket means ( 3 X, 5 , 6 ) formed above said lid plate; and wedge means ( 3 a , 3 b ) formed as part of said bottom plate ( 2 ) operable to be received in said socket means and operable to separate said break away section ( 4 a ) from said lid plate along said break line ( 8 ) by applying pressure on said break line ( 8 ) when engaged in said socket means and rotated relative thereto whereby a second improved storage container can be used to open said storage container by placing its wedge means in said socket means and twisting said second container relative to said improved liquid container.