| 摘要 |
<p>An overflow device (12) for use with sinks and the like is described. The overflow device (12) comprises a body (34, 36) adapted to be positioned adjacent the exterior of a sink bowl, the body having an inlet (14) and an outlet (15) joined by an inverted-U siphon passage (36), and a vent (40, 42) adapted to communicate ambient air to the top of the siphon passage (36), the vent (40, 42) being arranged to close when water level in the sink reaches a predetermined level. In at least one embodiment the vent (40, 42) has no moving parts.</p> |
