Ships – Ballasting – Floats
Patent
1997-06-30
2000-03-28
Swinehart, Ed
Ships
Ballasting
Floats
114 555, 114283, B63B 4314
Patent
active
060417277
ABSTRACT:
A personal watercraft sponson arrangement has sponsons that are configured so as to improve buoyancy and stability upon leaning. The sponsons are designed to be detachably affixed to the hull of the watercraft through the use of a coupling system.
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"Getting A Handle" advertisement, Personal Watercraft Illustrated magazine, Jan. 1995, vol. 9, No. 1, pp. 68-72.
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Hirano Mitsuhisa
Kojima Yasukazu
Yamada Hisato
Swinehart Ed
Yamaha Hatsudoki Kabushiki Kaisha
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