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Class Information
Number: 244/99
Name: Aeronautics > Aircraft control > Airship control > Gas release
Description: Devices and arrangements for releasing the buoyant gas from lighter-than-air craft.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7568656 |
System for controlling the lift of aircraft |
Aug. 4, 2009 |
| 7472865 |
Dehumidification system for an airship |
Jan. 6, 2009 |
| 7350749 |
Mass transfer system for stabilizing an airship and other vehicles subject to pitch and roll moments |
Apr. 1, 2008 |
| 5931413 |
Aircraft |
Aug. 3, 1999 |
| 5653405 |
Balloon venting valves |
Aug. 5, 1997 |
| 5584449 |
Generation and control of inflatable balloons |
Dec. 17, 1996 |
| 5449130 |
Hot air balloon amusement ride |
Sep. 12, 1995 |
| 5297763 |
Safety balloon apparatus |
Mar. 29, 1994 |
| 4836471 |
Navigational vent for hot air balloons |
Jun. 6, 1989 |
| 4651956 |
Deflation and control system for hot air balloons |
Mar. 24, 1987 |
| 4498408 |
Lifting body for diving |
Feb. 12, 1985 |
| 4432513 |
Gas-proof fastening system for a non-rigid airship |
Feb. 21, 1984 |
| 4402476 |
Exhaust valve and maneuvering structure for lighter-than-air aircraft |
Sep. 6, 1983 |
| 4280674 |
Balloon with deflation port |
Jul. 28, 1981 |
| 4090682 |
Pressure and hot air relief vents for a pressurized hot air airship |
May. 23, 1978 |
| 4042192 |
Balloon with deflation and maneuvering ports |
Aug. 16, 1977 |
| 4033527 |
Deflation cap for pressurized hot air airship |
Jul. 5, 1977 |
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