Patent ID: 7784767

Claim:
A boat lift drive for connection to a winch having a winch shaft, with the winch shaft including an end, with the end having an exterior threaded portion and an interior threaded portion, with the exterior threaded and interior threaded portions being coaxial with the winch shaft and with each other, with the interior threaded portion being a threaded opening, with the boat lift drive comprising: a) a power unit; b) a drive train engaged to and being driven by the power unit; c) a drive shaft engaged to and being driven by the drive train, with the drive shaft being engaged to and driving the winch shaft, with the drive shaft comprising a first end and a second end, with the first end comprising an interior threaded opening that engages the exterior threaded portion of the end of the winch shaft whereby the drive shaft is directly connected to the winch shaft at an axial location of the drive and winch shafts.