发明名称 Hydraulic watercraft lift
摘要 A watercraft lift having hydraulic cylinders secured to lift towers and pivot axles located above the water surface to raise and lower a cradle that is secured to a surrounding support framework with lift frames that radiate from the framework and cradle corners. Length adjustable legs depend from the framework to appropriately elevate and position the cradle and framework relative to the surface level of the waterway. Brace arms extend from the lift towers to the forward ends of the support framework. The cylinders rotate between a parallel condition to the top of the cradle, when fully elevated, and an inclined condition, when the cradle is fully lowered. The cylinders remain at all times substantially above the water.
申请公布号 US6612775(B1) 申请公布日期 2003.09.02
申请号 US20020165288 申请日期 2002.06.06
申请人 HEWITT LARRY 发明人 HEWITT LARRY
分类号 B63C3/06;(IPC1-7):B63C3/06 主分类号 B63C3/06
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