| 摘要 |
A pressure operable liquid pumping system for pumping liquid from a container comprises a liquid intake hose having a liquid inlet end insertable into liquid in the container, a fitting for engaging the aperture of the container in sealed relation, and a liquid transport hose having a liquid outlet end. A pump is used to pump air into the container. The pump is also connected in sealed air-delivery relation to the container at the aperture, thereby permitting delivery of air from the pump into the container through the aperture, so as to thereby effect a positive air pressure in the container, thus causing the liquid to flow from the container, through the liquid intake hose, the fitting, and the liquid transport hose, to the destination. The pump may also be connected in sealed air-delivery relation to the container at a second aperture.
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