Ships – Building – Canal and ferry boats
Patent
1976-02-12
1977-09-20
Blix, Trygve M.
Ships
Building
Canal and ferry boats
114 61, B63C 1300
Patent
active
040486850
ABSTRACT:
A trailable houseboat is disclosed combining a travel trailer module and pontoons which are positioned along the roof of the trailer module cabin for land use. Such pontoons are supported by a power operated mechanism so that they can be moved from the highway position to a launch position, in which they extend along the sides of the cabin at a level sufficiently low to permit floating of the boat but sufficiently high to allow the boat to be rolled on its wheels. After launching, the trailer module is raised with respect to the pontoons to increase the freeboard and to raise the road wheels up out of the water. Folding decks are positioned adjacent to the ends of the cabin for highway use and extend between the ends of the pontoons in the water configuration. Folding walkways are also provided for water use to cooperate with the ends of the pontoons and the decks to provide a large level deck system completely around the cabin. The pontoons are shaped to nest with the cabin so that the height of the trailer module is not substantially increased in the highway configuration, even though the pontoons have a depth at their ends to provide substantial freeboard in the water configuration. In the highway configuration, the ends of the pontoons project below the roof line of the cabin to lower the center of gravity. The pontoons and the cabin are all provided with positive buoyancy for safety and strength by utilizing closed cell foam. A single hydraulic actuator is connected to move the pontoons between the three positions and to raise and lower the decks. The raised ends of the pontoons provide accessible storage space.
REFERENCES:
patent: 3079616 (1963-03-01), Byberg
patent: 3090975 (1963-05-01), Franks
patent: 3143992 (1964-08-01), Beams
patent: 3195154 (1965-07-01), Swanson
patent: 3308782 (1967-03-01), Dahl
patent: 3427671 (1969-02-01), Livaudais
patent: 3496689 (1970-02-01), Nerem
patent: 3860982 (1975-01-01), Rumsey
Basinger Sherman D.
Blix Trygve M.
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