Ships – Boats – boat component – or attachment – Boarding aids
Patent
1990-04-06
1992-02-04
Swinehart, Ed
Ships
Boats, boat component, or attachment
Boarding aids
114 61, 14 71001, B63B 1700
Patent
active
050851659
ABSTRACT:
A gangplank is provided stored underneath the platform deck of a pontoon boat, between the pontoons. The gangplank is retractable to a position beneath the platform deck of the boat and extendable from the position below the platform deck by a manually or electrically operated winch. In extending the gangplank, the gangplank is initially moved from the boat in a horizontal position until reaching a predetermined point at which the gangplank is lowered so as to lie on top of a surface to be accessed from the boat. Similarly, upon retracting of the gangplank, the gangplank is withdrawn towards the boat in an inclined position until reaching a predetermined point at which the gangplank is raised to a horizontal position to be withdrawn onto tracks located below the platform deck of the boat.
REFERENCES:
patent: 427378 (1890-05-01), Thomson
patent: 3084816 (1963-04-01), Bozio
patent: 3159295 (1964-12-01), Love
patent: 3933258 (1976-01-01), Forsyth et al.
patent: 4161795 (1979-07-01), Quest
patent: 4242032 (1980-12-01), Whiteman et al.
patent: 4624619 (1986-11-01), Uher
patent: 4722109 (1988-02-01), Mountz
patent: 4971315 (1990-11-01), Rector
patent: 4993341 (1991-02-01), Merkel
Beachcomber Boats Brochure, Beachcomber West, Inc.
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