Hydraulic and earth engineering – Marine vessel portage – launching – or removing – Lifting
Patent
1998-02-12
1999-09-28
Taylor, Dennis L.
Hydraulic and earth engineering
Marine vessel portage, launching, or removing
Lifting
B63C 306, B63C 700, B63F 714
Patent
active
059576235
ABSTRACT:
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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Carter Daniel S.
Sargent Charles L.
Noonan William E.
Quality Boat Lifts Inc.
Taylor Dennis L.
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