发明名称 APPARATUS AND METHOD FOR DRAINING A SWIMMING POOL COVER
摘要 A method and apparatus for draining a swimming pool cover includes upper and lower flanged members having a central drain passage for sealably fitting around a hole formed in the pool cover. A drain tube upwardly extends from the upper flange and communicates with the passage thereof. An elbow fitting or the like communicates at one end with the passage in the lower flange and at another end with a flexible conduit. The conduit extends from the elbow fitting for connection to a conventional return water port fitting located at the pool sidewall. As water accumulates on the cover to a predetermined depth, the excess water drains into the drain tube and travels through the flexible conduit to exit the pool at the sidewall port fitting. A perforated drain closure member is also preferably employed around the drain tube to prevent debris blockage and to provide for adjustably regulating the height and weight of water stored on the cover for hold-down purposes.
申请公布号 CA1315173(C) 申请公布日期 1993.03.30
申请号 CA19890589893 申请日期 1989.02.02
申请人 HODAK, FRANK J. 发明人 HODAK, FRANK J.
分类号 E04H4/10;E04H4/12 主分类号 E04H4/10
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