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US 2002/0053309 A1Published application
Ventilation with filter for watercraft
OwnerToshiyuki Hattoriinventor
Life of this patent
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OwnerToshiyuki Hattoriinventor
Estimating the term…
A watercraft has a water preclusion structure for internal ventilated cavities. A ventilation tube connects an internal cavity, such as an engine compartment, with the atmosphere for allowing air transfer to or from the cavity. A water preclusion structure is disposed between the atmosphere and the cavity. In one arrangement, water repellant filters are installed over an end of a tube that allows the air transfer. In another arrangement, an air box that communicates with the cavity contains air inlets that have water repellant filters disposed between the outlet of the air box and the inlet of the air box. The air box also contains a drain to allow water removed from the air to drain out of the air box.
A personal watercraft comprising a deck and a lower hull, said deck and said lower hull being joined to define a cavity within said personal watercraft, a ventilation system comprising a passageway extending between said cavity and a location outside of said cavity, said location being in communication with atmospheric air and said ventilation system comprising a water repellant filter disposed along said passageway.
A personal watercraft comprising a hull defining a substantially enclosed cavity, a ventilation system comprising a first passage, a second passage and a third passage, each of said passages extending outward from said cavity to a region filled with atmospheric air, a water-repellant filter disposed over an end of each of said passages that is associated with said region filled with atmospheric air.
A removable filtration unit for a personal watercraft comprising an upper plate, a lower plate, an opening extending through said lower plate, a filter disposed between said upper plate and said lower plate and encircling said opening, said filter being formed of a material that is air permeable and water repellant.
A personal watercraft comprising a hull, a cavity disposed within said hull, a removable filtration unit attached to said hull and comprising an upper plate, a lower plate, and an opening extending through said lower plate, said opening cooperating with an opening through said hull, a filter being disposed between said upper plate and said lower plate and encircling said opening, said filter being formed of a material that is air permeable and water repellant.
A personal watercraft comprising a hull, a cavity communicating with the atmosphere through a ventilation opening and means for repelling water from said opening.
Dependencies are inferred from the claim text.