Marine vessel lifting system with variable level detection

Details Marine vessel lifting system with variable level detection Marine vessel lifting system with variable level detection

2006-08-15

2006-08-15

Will, Thomas B. (Department: 3671)

Hydraulic and earth engineering

Marine vessel portage, launching, or removing

Lifting

C405S004000, C114S044000

Reexamination Certificate

active

07090431

ABSTRACT:
A marine vessel, typically a power boat, lifting system includes a remotely operated transmitter module, a receiver module, a level sensing module, a motor control module, and motors are integrated to automatically position a cradle to the desired position relative to the waterline of the marine vessel. The lifting system is initialized by a signal input, a button pushed and released, from either the remote transmitter or the motor control module to begin movement of the lifting cradle to a desired position. The received signal initiates the motors, and a light to indicate energized motors through a visual signal, to move in the desired direction, either lifting or lowering the cradle. The level sensing module returns a signal to the motor control module to terminate the motors, and thus the visual indicator, when the desired cradle position has been reached.

REFERENCES:
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patent: 5515025 (1996-05-01), Barrows
patent: 5593247 (1997-01-01), Endres et al.
patent: 5769568 (1998-06-01), Parkins et al.
patent: 6543375 (2003-04-01), Sargent et al.

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