| 摘要 |
A fluid product tank comprising: a sliding barrel (11), a neck (12) defining an outlet opening (13), an inner shoulder (14) linking the sliding barrel (11) to the outlet opening (13), the inner shoulder (14) being provided with an annular groove (15) that extends into the extension of the sliding barrel (11) such that the inner shoulder (14) defines an annular ring (16) that links the annular groove (15) to the outlet opening (13), - a follower piston (2) sealingly and slidingly engaged in the sliding barrel (11), the piston (2) defining at least one sealing lip (21) that is received in the annular groove (15) when the tank is empty, characterised in that the annular ring (16) is formed with at least one radial groove (17; 17') that links the annular groove (15) to the outlet opening (13) of the neck (11). |
