CAN LID WITH GAS DISCHARGE HOLE BY PREVENTING WATER-HAMMER PHENOMENON WHEN CAN CONTAINING COMPRESSED GAS IS OPENED

摘要

PURPOSE: A can-lid with a gas discharge hole is provided to disable bubbles and beverage contained in a can to be rapidly discharged from the can by preventing a water-hammer phenomenon when the can containing compressed gas is opened. CONSTITUTION: The can-lid provided on a top surface(2) of a body(1) of a gas-containing sealed can comprises a pull(3) hingedly connected with the top surface(2) of the can body(1) by a rivet(4) and having a pressing projection and a pressing hole(10) formed on a pressing device; and an opener(7) having a projecting portion(20) located inside the pressing hole(10), and the opener(7) having a cutting line(6) at a predetermined portion of the top surface(2) of the can body(1) to form an entrance(7a).