Can

Abstract

A can has a main body, an upper casing disposed on a top portion of the main body, a retained cap disposed on the upper casing, a connection ring disposed on the retained cap, and a pull ring connected to the connection ring. A rivet button fastens the connection ring and the retained cap together.

I claim:  
     
         1 . A can comprises: 
 a main body,    an upper casing disposed on a top portion of the main body,    a retained cap disposed on the upper casing,    a connection ring disposed on the retained cap,    a pull ring connected to the connection ring,    a rivet button fastening the connection ring and the retained cap together,    the connection ring having an annular head,    a snap button fastening the annular head of the connection ring and the upper casing together,    the pull ring having two hinge members enclosing the annular head of the connection ring, and    the upper casing having two vent holes to receive the hinge members, an oblong recess, a cutting groove surrounding the retained cap, and an inner periphery groove.    
     
     
         2 . The can as claimed in  claim 1 , wherein the upper casing further has a first guide groove to communicate with the oblong recess and the inner periphery groove, and a second guide groove to communicate with the oblong recess and the inner periphery groove.  
     
     
         3 . The can as claimed in  claim 1 , wherein the connection ring has two lateral notches.