| 摘要 |
A bailer has two externally-mounted weights. The first weight is positioned at the uppermost end and the second weight is positioned at the lowermost end of the bailer. The combination of weights increases the insertion rate of the bailer into a liquid so that the time elapsed for an insertion is reduced relative to the time required to insert unweighted bailers, top-weighted bailers, or bottom-weighted bailers. The weights also prevent wobble about the longitudinal axis of the bailer as it descends. The external mounting of the weights further prevents contamination of the liquid collected by the bailer and eliminates back pressure and turbulence caused by interior weights.
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