发明授权
- 专利标题: Skimmer seal for swimming pool
- 专利标题(中): 游泳池的撇水密封
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申请号: US524750申请日: 1995-09-07
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公开(公告)号: US5706530A公开(公告)日: 1998-01-13
- 发明人: Albert S. Mariano
- 申请人: Albert S. Mariano
- 专利权人: Mariano; Albert S.
- 当前专利权人: Mariano; Albert S.
- 主分类号: E04H4/12
- IPC分类号: E04H4/12 ; E04H4/14
摘要:
An improved seal for insertion into a skimmer of a swimming pool that attaches to an intake pipe of the pool filtration equipment and extends into the walled region of the skimmer to provide a compressible body absorbing the expansion of ice during freeze-up of the pool. The seal comprises an air valve for introducing air via an inner shaft into the intake pipe line to clear out water. The seal obviates having to lower the pool water level.
公开/授权文献
- US4756640A Axial retaining member 公开/授权日:1988-07-12