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Color Curly Brackets (indicating CPC extensions to IPC) References Date Revised

CPC
COOPERATIVE PATENT CLASSIFICATION
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AIR-CUSHION VEHICLES (devices for short-distance movement of heavy loads by providing a high-pressure fluid cushion, supplied from an independent source, between load and ground B65G 7/06)
NOTE
-
The term "air-cushion vehicles" in this subclass includes all vehicles which are wholly or partly supported on land or water by air or other gaseous cushions

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Air-cushion (land vehicles, waterborne vessels, or aircraft adapted or modified to travel on air cushion B60V 3/00)
.
wherein the cushion is generated and contained by at least one peripheral fluid curtain
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.
wherein the cushion is contained at least in part by walls
. .
{
the walls being flexible (skirt details B60V 1/16)
}
B60V 1/046
. .
{
the walls or a part of them being rigid
}
.
wherein the cushion is formed within plenum chamber
.
wherein the cushion is created during forward movement of the vehicle by ram effect
.
in which the curtain-forming nozzle or the vehicle base is shaped to create a vortex curtain
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.
Stability or attitude control
B60V 1/115
. .
{
by ground or water engaging means, e.g. rudders or wheels
}
. .
by dividing the cushion
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.
Propulsion; Control thereof (B60V 1/11 takes precedence)
B60V 1/145
. .
{
using a watter propeller
}
B60V 1/15
. .
using part of the cushion-forming fluid
.
Flexible skirts
.
Body structure
.
Spray deflectors
.
provided with hydrofoils (hydrofoils per se B63B 1/24)
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B60V 3/00
Land vehicles, waterborne vessels, or aircraft, adapted or modified to travel on air cushions
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.
Land vehicles, e.g. road vehicles
. .
{
co-operating with a flat surface, e.g. transporting loads on platforms
}
. .
co-operating with rails or other guiding means, e.g. with air cushion between rail and vehicle
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.
Waterborne vessels
. .
{
hulls therefor
}
.
Aircraft, e.g. air-cushion alighting-gear therefor
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Last Modified: 10/10/2013