| 摘要 |
In a valve assembly for a pressurised dispensing container (so- called aerosol container) the mounting cup 3 is made of non-metallic material and the actuating button 2 is permanently sealed to it, for example by ultrasonic welding. A flexible annular portion 15 or 15' of reduced thickness allows the movement of the button (downward or tilting) necessary to open the valve. The shell 4 may be permanently sealed to the mounting cup as well so that all three form a unitary assembly. The button has a hole 12 in its top face to allow "gassing" through a path including a clearance 13 around the stem and notches 14 in the rim of the shell 4. <IMAGE> |
