Ships – Ballasting – Floats
Patent
1984-08-29
1986-06-10
Basinger, Sherman D.
Ships
Ballasting
Floats
114270, B63B 4314
Patent
active
045936404
ABSTRACT:
An improved pontoon system designed for supporting a motorcycle of the three-wheel off-road variety. The pontoons are connected through a pivoting frame to the main motorcycle structure. The position of the pontoons is controlled by a lever arm and handle, secured by locking pins, permitting the pontoons to be positioned in three positions. The first, a fully lowered flotation position, supports a three-wheeler motorcycle on the water to a depth sufficient that the drive wheels of the motorcycle will, through a paddle wheel effect, propel the motorcycle through water. A second, water entry and water exit position, is somewhat higher so that the pontoons will clear small obstacles as the motorcycle enters or leaves the water. A third, overhead terrain traversal position, permits the motorcycle to be driven through rough underbrush and undergrowth and the like while the pontoons are fully clear of any ground obstacles. This three-position pontoon is supported and mounted on a rigid pivoting framework and is lockable in any of the three positions, so as to support essentially the entire weight of the motorcycle plus operator. The design of the pontoons placed the center of flotation of the pontoons sufficiently outboard of the center of gravity of the motorcycle plus operator so that the assemblage is essentially immune to tipping in the water.
REFERENCES:
patent: 3150632 (1964-09-01), Evans
patent: 3661114 (1972-05-01), Wagner et al.
patent: 4494937 (1985-01-01), Riermann
Avila Stephen P.
Basinger Sherman D.
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