Aerosol container cap device

Claim 1

An aerosol container cap device comprising a cap fixed removably on an aerosol container for covering a pushbutton ejection valve assembly which is formed at its side surface with a discharge orifice maintained in communication with a vertical duct of the ejection valve assembly mounted in said aerosol container for opening and closing said ejection valve, a presser member movably mounted in the cap and adapted to be moved downwardly into contact with said pushbutton and to move said ejection valve assembly to open position, and means for positively holding said presser member in such downward position permanently to keep the ejection valve assembly in its open position, whereby all of the residual gas is discharged in said cap from the aerosol container when said ejection valve assembly is pushed by said presser member wherein the presser member is received movably in a port formed in the cap, said cap having a cylindrical body aligned with the port and extending perpendicularly downwardly from the top of the cap, said cylindrical body being formed with a minor diameter portion at a lower end portion of an inner wall surface thereof, said presser member being provided with a resilient engaging portion, said resilient engaging portion being provided at its lower end portion with a flange adapted to be brought into and out of engagement with said minor diameter portion of the cylindrical body, said flange of said resilient engaging member being brought into engagement with a lower end edge of the cylindrical body when a force is exerted on the presser member to move the same downwardly, whereby the presser member is held in its lower position.