| 摘要 |
PURPOSE:To remove the residual gas in a spray can speedily and completely, by using the cover of the spray can and fitting it over the spray can. CONSTITUTION:A method for using projections 5 and 5' made inside the cover 1 of a spray can is provided, a method for using a nozzle part 3 after detaching it from the spray can 8 is also provided, and a method for using cuts 2 and 2' made in a part of the cover 1 of the spray can is further provided. All the methods use the spray can cover which completely forces the residual gas in the spray can out from a gas removal hole 7 via a gas discharge opening 10 when it is fitted over the spray can 8, in the state shown by the numeral 14, and consequently pushes down the nozzle part 3 and a nozzle pipe head. |
