发明名称 Pool winterizing system
摘要 A swimming pool winterizing system which includes a straight hollow resilient plastic member for insertion into the skimmer discharge outlet and an L-shaped hollow tubular member for insertion into the swimming pool discharge outlet. Each hollow member is of length to allow the open upper end to extend above the pool water level and allow for the blowing of forced air through the pool water lines thereby purging the water lines for the winter months without the need of lowering the swimming pool water level.
申请公布号 US5060321(A) 申请公布日期 1991.10.29
申请号 US19900532970 申请日期 1990.06.04
申请人 BRENEISEN, WILLIAM J. 发明人 BRENEISEN, WILLIAM J.
分类号 E04H4/12;E04H4/14 主分类号 E04H4/12
代理机构 代理人
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