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Class Information
Number: 244/97
Name: Aeronautics > Aircraft control > Airship control > Buoyancy varying
Description: Devices and arrangements for controlling lighter-than-air craft by changing the buoyancy of all or part of the craft with respect to the surrounding air.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7568656 |
System for controlling the lift of aircraft |
Aug. 4, 2009 |
| 7500638 |
Heavy lift airship |
Mar. 10, 2009 |
| 7487936 |
Buoyancy control system for an airship |
Feb. 10, 2009 |
| 7472865 |
Dehumidification system for an airship |
Jan. 6, 2009 |
| 7469857 |
System and method for altitude control |
Dec. 30, 2008 |
| 7350749 |
Mass transfer system for stabilizing an airship and other vehicles subject to pitch and roll moments |
Apr. 1, 2008 |
| 7163177 |
Airship ballast system |
Jan. 16, 2007 |
| 7150430 |
Internet linked environmental data collection system and method |
Dec. 19, 2006 |
| 6966523 |
Airship and method of operation |
Nov. 22, 2005 |
| 6811115 |
Method and system for setting hull parameter of airship and method of adjusting ascension rate of the same |
Nov. 2, 2004 |
| 6811113 |
Internet linked environmental data collection system and method |
Nov. 2, 2004 |
| 6698686 |
Airship |
Mar. 2, 2004 |
| 6648272 |
Airship |
Nov. 18, 2003 |
| 6619586 |
Thermal airship buoyancy controller |
Sep. 16, 2003 |
| 6609680 |
High altitude airships |
Aug. 26, 2003 |
| 6425552 |
Cyclical thermal management system |
Jul. 30, 2002 |
| 6305641 |
Super-pressured high-altitude airship |
Oct. 23, 2001 |
| 6164589 |
Centerline landing gear for aerocraft |
Dec. 26, 2000 |
| 6119979 |
Cyclical thermal management system |
Sep. 19, 2000 |
| 6016991 |
Evacuated rotating envelope aircraft |
Jan. 25, 2000 |
| 5931412 |
Air balloon containing inert gas |
Aug. 3, 1999 |
| 5890676 |
Airship with neutral buoyancy fuel bladder |
Apr. 6, 1999 |
| 5813627 |
Balloon support apparatus for hot air balloon ride |
Sep. 29, 1998 |
| 5757157 |
Sensor mount apparatus |
May. 26, 1998 |
| 5538203 |
Ballonet system for a lighter-than-air vehicle |
Jul. 23, 1996 |
| 5348254 |
Long period floating airship |
Sep. 20, 1994 |
| 5333817 |
Ballonet system for a lighter-than-air vehicle |
Aug. 2, 1994 |
| 5297763 |
Safety balloon apparatus |
Mar. 29, 1994 |
| 5285986 |
Rigid airship with a carrier frame of ribs and beams enclosed by skin sections forming an envelope |
Feb. 15, 1994 |
| 5096141 |
Aircrane |
Mar. 17, 1992 |
| 5090637 |
Helium purification system for lighter-than-air aircraft |
Feb. 25, 1992 |
| 5076513 |
Aerostat intended to travel in an autonomous and reversible manner between the ground of a planet having an atmosphere and a predetermined ceiling altitude |
Dec. 31, 1991 |
| 5005783 |
Variable geometry airship |
Apr. 9, 1991 |
| 4986494 |
Process of stabilizing at altitude a stratoshperic balloon, and balloon adapted for carrying out the process |
Jan. 22, 1991 |
| 4934631 |
Lighter-than-air type vehicle |
Jun. 19, 1990 |
| 4865266 |
Hot air balloon and methods and devices for augmenting buoyancy, rate of lift, safety, envelope life and economy |
Sep. 12, 1989 |
| 4850551 |
Propulsion system for a buoyant vehicle |
Jul. 25, 1989 |
| 4773617 |
Lighter-than-air craft |
Sep. 27, 1988 |
| 4711416 |
Steerable lighter than air balloon |
Dec. 8, 1987 |
| 4640474 |
Method and apparatus for aerially transporting loads |
Feb. 3, 1987 |
| 4619422 |
Balloon carriage |
Oct. 28, 1986 |
| 4534525 |
Evacuated balloon for solar energy collection |
Aug. 13, 1985 |
| 4498408 |
Lifting body for diving |
Feb. 12, 1985 |
| 4457477 |
Process for altitude-stabilizing a balloon, and atmospheric balloons for implementing this process |
Jul. 3, 1984 |
| 4402476 |
Exhaust valve and maneuvering structure for lighter-than-air aircraft |
Sep. 6, 1983 |
| 4394998 |
Process and apparatus for exploring the atmosphere of a planet |
Jul. 26, 1983 |
| 4366936 |
Aircraft having buoyant gas balloon |
Jan. 4, 1983 |
| 4361297 |
Atmospheric exploration vehicle |
Nov. 30, 1982 |
| 4332547 |
Thrust augmenter ejector combustion device |
Jun. 1, 1982 |
| 4326681 |
Non-rigid airship |
Apr. 27, 1982 |
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