Lifting device

Details Lifting device Lifting device

1996-02-26

1997-03-25

Sotelo, Jesus D.

Ships

Boats, boat component, or attachment

Boarding aids

114 48, B63B 1700

Patent

active

056134622

ABSTRACT:
A novel lifting device for small craft in which the mechanism includes an hydraulic pump and an hydraulic cylinder pivotally mounted on a first horizontal shaft of a support attached to a boat or stationary surface. A first arm is mounted on the first shaft, and a second arm mounted on a second lower shaft. The piston rod of the cylinder is pivotally connected to the lifting platform. The other end of the first arm is pivotally connected to the lifting platform at a higher position than that of the piston rod. The other end of the second arm is pivotally connected at the same position as the piston rod. When the piston rods are extended, the platform is lower; when the rods are retracted, the platform is higher.

REFERENCES:
patent: 4757971 (1988-07-01), Mapes
patent: 4842559 (1989-06-01), Litjens et al.

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