United States Patent and Trademark Office

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Color		Curly Brackets (indicating CPC extensions to IPC)

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	CPC	COOPERATIVE PATENT CLASSIFICATION

B60V

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

B60V 1/00

Air-cushion (land vehicles, waterborne vessels, or aircraft adapted or modified to travel on air cushion B60V 3/00)

B60V 1/02

wherein the cushion is generated and contained by at least one peripheral fluid curtain

B60V 1/04

wherein the cushion is contained at least in part by walls

B60V 1/043

. .

{

the walls being flexible (skirt details B60V 1/16)

}

B60V 1/046

. .

{

the walls or a part of them being rigid

}

B60V 1/06

wherein the cushion is formed within plenum chamber

B60V 1/08

wherein the cushion is created during forward movement of the vehicle by ram effect

B60V 1/10

in which the curtain-forming nozzle or the vehicle base is shaped to create a vortex curtain

B60V 1/11

Stability or attitude control

B60V 1/115

. .

{

by ground or water engaging means, e.g. rudders or wheels

}

B60V 1/12

. .

by dividing the cushion

B60V 1/14

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

B60V 1/16

Flexible skirts

B60V 1/18

Body structure

B60V 1/20

Spray deflectors

B60V 1/22

provided with hydrofoils (hydrofoils per se B63B 1/24)

B60V 3/00

Land vehicles, waterborne vessels, or aircraft, adapted or modified to travel on air cushions

B60V 3/02

Land vehicles, e.g. road vehicles

B60V 3/025

. .

{

co-operating with a flat surface, e.g. transporting loads on platforms

}

B60V 3/04

. .

co-operating with rails or other guiding means, e.g. with air cushion between rail and vehicle

B60V 3/06

Waterborne vessels

B60V 3/065

. .

{

hulls therefor

}

B60V 3/08

Aircraft, e.g. air-cushion alighting-gear therefor