| 摘要 |
<p>Spaced around a supply tank is a plurality of dispensing chambers, each of which is mounted on a conduit arm extending laterally away from the tank and connecting the bottom of the tank with the bottom of the chamber. There is a first valve for closing the tank outlet and a second valve for closing an outlet from the conduit arm to a downwardly extending filling tube. A suction tube extends along the filling tube and has an inlet at its lower end located above the lower end of the filling tube. The suction tube is connected with the inside of the tank, which is maintained under subatmospheric pressure. Means are provided for filling each dispensing chamber in succession with liquid from the tank while the first valve is open and the second valve is closed. Means also are provided for causing each dispensing chamber to force liquid down through the associated filling tube into a container that has been raised around the outlet of the tube. Liquid product that rises in the container above the lower end of the suction tube therein returns through that tube directly to the supply tank.</p> |
