Power driven marine ladder

Details Power driven marine ladder Power driven marine ladder

2008-05-13

2008-05-13

Sotelo, Jesus (Department: 3617)

Ships

Boats, boat component, or attachment

Boarding aids

C441S080000, C182S194000

Reexamination Certificate

active

11350588

ABSTRACT:
A power driven marine ladder apparatus includes a vertically extendable cable section and a horizontally extendable rung section connected transversely to the cable section. An axially rotatable winder is mounted on a marine vessel or fixed marine structure and the cable section is attached to and wrappable about the winder. A motor drives the winder rotatably in a first direction to unwrap the cable section and lower the ladder apparatus, and in an opposite second direction to wrap the cable section on the winder and raise the ladder apparatus.

REFERENCES:
patent: 2840289 (1958-06-01), Murray
patent: 6328129 (2001-12-01), Ferguson

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