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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
8459589 External pressurization system for lighter than air vehicles Jun. 11, 2013
8336810 System, method and apparatus for widespread commercialization of hydrogen as a carbon-free alternative fuel source Dec. 25, 2012
8103393 Aircraft exhaust gas temperature monitor Jan. 24, 2012
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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