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Class Information
Number: 180/129
Name: Motor vehicles > Surface effect vehicles (i.e., ground effect machines) > Dynamic seal or fluid curtain
Description: A vehicle wherein the working fluid is, at least partially, supplied and maintained by a dynamic seal or fluid curtain.

Sub-classes under this class:

Class Number Class Name Patents
180/130 Recirculating 3

Patents under this class:

Patent Number Title Of Patent Date Issued
7306066 Air cushion vehicle and game Dec. 11, 2007
7032698 Hovercraft Apr. 25, 2006
5930864 Upright vacuum cleaner Aug. 3, 1999
5636702 Aerodynamic and ground effect craft Jun. 10, 1997
5553347 Upright vacuum cleaner Sep. 10, 1996
5501291 Skirt for an air cushion vehicle and filament member thereto Mar. 26, 1996
5392492 Air-floated apparatus Feb. 28, 1995
4840249 Apparatus for srewing a cover onto a screw neck of a hearing aid Jun. 20, 1989
4615407 Flexible annular jet seal for surface effect vehicles Oct. 7, 1986
4569410 Apparatus for carrying and transporting loads Feb. 11, 1986
4534434 Propulsion plant for air-cushioned vehicles Aug. 13, 1985

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