| 摘要 |
<p>A metering valve to be fitted to an aerosol container comprises a dispensing member (6) in the form of a tube and a metering member (2) in the form of a cylindrical cup which receives the inner end of the tube (6). The dispensing tube (6) is slidable in an opening in a valve housing (11). A bellow (1) extends between the inner end of the dispensing tube (6) and the housing (11) to seal against escape between the dispensing tube (6) and the opening in the valve housing (11). The bellows (1) is integral with the dispensing tube (6). The inner end of the dispensing tube (6)/bellows (1) seals against a seat (9) in the floor of the metering cup (2). The upper end of the metering cup (2) seals against a gasket (3) which lies against the upper end of the bellows (1). <IMAGE></p> |
