| 摘要 |
<p>A pressurized piston pusher (7) is disclosed that will extract viscous fluids (2) from a container. The pressurized piston pusher (7) operates with the seal (1) to allow the rate of flow of the viscous fluid (2) from the container to be predetermined and controlled economically and accurately. The pressurized piston pusher (7) will also allow the forced ejection of the viscous fluid (2) from the container.</p> |
