发明名称 |
Electrically insulated positive drive boat lift |
摘要 |
A boat lift apparatus includes a support structure located proximate to a body of water. An elongate threaded shaft is located adjacent to the support structure and extends in a substantially vertical direction. A nut threadably engages the shaft. A boat accommodating platform is connected to the nut. The shaft is rotatably mounted to the support structure and selectively driven rotatably relative to the nut in a first direction to raise the nut relative to the shaft and in an opposite, second direction to lower the nut relative to the shaft. As a result, the platform and the boat accommodated thereon are selectively lifted and lowered relative to the body of water.
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申请公布号 |
US5957623(A) |
申请公布日期 |
1999.09.28 |
申请号 |
US19980023144 |
申请日期 |
1998.02.12 |
申请人 |
QUALITY BOAT LIFTS INC. |
发明人 |
SARGENT, CHARLES L.;CARTER, DANIEL S. |
分类号 |
B63C3/06;B66F7/02;(IPC1-7):B63C3/06;B63C7/00;B63F7/14 |
主分类号 |
B63C3/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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