发明名称 BEACH LIFESAVING SYSTEM AND METHOD OF DEPLOYMENT
摘要 A surf lifesaving system comprises two floating lines extending from two spaced apart tethering points fixed on the beach to a buoy anchored offshore on the seabed. The floating lines are connected to sinking lines which pass through pulleys attached to the buoy in continuous loops with the floating lines. The tethering points are poles anchored in the sand, the floating lines comprise individual floats connected by rope at from three to seven meter intervals and the sinking lines have a core which is denser than saltwater.
申请公布号 US2011207377(A1) 申请公布日期 2011.08.25
申请号 US201113036060 申请日期 2011.02.28
申请人 HAWTHORNE FREDERICK WILLIAM GEORGE 发明人 HAWTHORNE FREDERICK WILLIAM GEORGE
分类号 B63C9/26;B63C9/00;E02D5/80 主分类号 B63C9/26
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