Device containing propellant gas has cover fitted on can and has valve with thread on inner side for engaging with thread on bag, and recess is formed in valve to accommodate protrusion to prevent rotation of pipe relative to valve

摘要

The device containing a propellant gas includes a bag (30) built into a can and with a pipe (31) constructed on it, and with a thread (32) and protrusion (33) formed on the outer side of the pipe. A cover is fitted on the can and has a valve (23) with a thread (24) on its inner side for engaging with the thread on the bag. A recess (25) is formed in the valve to accommodate the protrusion to prevent rotation of the pipe relative to the valve.