| 摘要 |
<p>The head (16) has a base (17) mounted around a dispensing device to arrange a dispensing valve in a sealed chamber (20). An actuator (25) is movable in the chamber to actuate the valve to arrange the valve to an open position when the actuator is in the chamber. A pressure raising unit (22) raises pressure in the chamber. The valve is retained in a cup mounted on a side wall of a metal container such that an O-ring (19) is arranged on the cup when the device is arranged in the head. An independent claim is also included for a method for raising pressure of a conditioning and dispensing device.</p> |
