| 摘要 |
<p>A valved container assembly (10) comprising a container (12) for containing a fluid, the container (12) extending in an axial direction and having at least one venting opening (12a) at a front end and at least one dispensing opening (12b). The valved container assembly (10) further comprising a valve (14) disposed in the container (12) and a plunger element (20) disposed axially rearward of the valve (14), the plunger element (20) being axially moveable in the container (12) and defining a first volume (22) in the container (12) between the plunger element (20) and the valve (14), where the plunger element (20) is configured to increase the pressure of a fluid in the first volume (22) upon axial movement relative to the valve (14). The valve (14) comprises a permanent seal (16) forming a fluidic seal between the at least one venting opening (12a) and the first volume (22), and a resilient seal (18) that is axially rearward of said permanent seal (16) and is moveable between a sealing configuration and an open configuration. In the sealing configuration the resilient seal (18) forms a fluidic seal with the container (12) between the at least one dispensing opening (12b) and the first volume (22). In at least one axial position of the valve (14) in the container (12) when the resilient seal (18) is in the open configuration the first volume (22) is fluidly connected to the at least one dispensing opening (12b). The resilient seal (18) is moveable from the sealing configuration to the open configuration upon fluid pressure in the first volume (22) exceeding a predetermined pressure threshold.</p> |
