| 摘要 |
<p>A conventional pop-up drain plug (10) is movable up and down by an actuator system (24) to open and close the entry opening of a drain pipe (12). The plug includes a cap (16) at one end to seal the opening (14), a base (20) engagable by the actuator system (24), and an intermediate portion comprising a finned guide (28) and a stem (30). An upwardly open strainer cup (50) having a centrally apertured bottom is forced over the plug base and onto the stem. The cup includes small openings (38) to pass drain water, and its rim is dimensioned to fit close to the drain pipe walls so that the cup will catch small articles passing through the drain pipe entry opening, while yet moving upwardly and downwardly with the drain plug.</p> |
