One-way self-closing drain plug apparatus

    公开(公告)号:US06634312B2

    公开(公告)日:2003-10-21

    申请号:US09977166

    申请日:2001-10-15

    IPC分类号: B63B1300

    CPC分类号: B63B13/02 F16K15/04

    摘要: The present invention is a drain plug apparatus designed and configured to remain in the drain hole of a conventional pleasure water vessel, regardless of whether the vessel is in or out of the water. This drain plug apparatus includes a body assembly having at least two chambers. One chamber will house a shut-off valve for enabling the boater to open or close the drain plug apparatus. This will render water to escape or prevent entrance to the boat, respectively. A safety assembly is included in the second and each subsequent chamber. The safety assembly will prevent water passage into the water vessel should the user forget to close the drain plug assembly, prior to placing the boat in water.