Hydraulic boat hoist
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United States of America Patent
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Jul 15, 2014
Grant Date -
May 29, 2014
app pub date -
Nov 26, 2012
filing date -
Nov 26, 2012
priority date (Note) -
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status (Latency Note)
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Abstract
A hydraulic boat lift uses two hydraulic cylinders to pull/release cables attached to a boat cradle. The hydraulic cylinders are operated by attachment to a tandem pump to cause them to operate in a synchronized fashion. Furthermore a switch assembly has a switch associated with each respective hydraulic cylinder, the pair of switches being wired in parallel so that if one side of the boat cradle reaches its fully raised position before the other side, the one side will stop and the other side will continue to move up until it is also disposed in a fully raised position before stopping by turning off the electricity to the tandem pump.
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