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Class Information
Number: 244/128
Name: Aeronautics > Aircraft structure > Airship gas cell construction and arrangement
Description: Construction and arrangements of gas-containing units in lighter-than-air craft.










Patents under this class:

Patent Number Title Of Patent Date Issued
8617687 Multi-functional aircraft structures Dec. 31, 2013
8544797 Cargo carrying air vehicle Oct. 1, 2013
8459589 External pressurization system for lighter than air vehicles Jun. 11, 2013
8342442 Advanced airship technologies Jan. 1, 2013
8191819 Floating bearing structure with static buoyancy Jun. 5, 2012
7669796 Hoop stress reduction in a buoyant airship Mar. 2, 2010
7552893 Airship & method of operation Jun. 30, 2009
7500637 Airship with lifting gas cell system Mar. 10, 2009
7487936 Buoyancy control system for an airship Feb. 10, 2009
7097135 Airship Aug. 29, 2006
6964723 Method for applying pressure to composite laminate areas masked by secondary features Nov. 15, 2005
6877693 Aerostat for transporting equipment and passengers Apr. 12, 2005
6837458 Airship Jan. 4, 2005
6811115 Method and system for setting hull parameter of airship and method of adjusting ascension rate of the same Nov. 2, 2004
6805319 Variable-lift dirigeable balloon Oct. 19, 2004
6793180 Lighter than air foldable airship Sep. 21, 2004
6739549 Dirigible balloon rigidified by helium tanks May. 25, 2004
6499693 Aircraft to respond to threats Dec. 31, 2002
6427943 Stratospheric airship Aug. 6, 2002
5992795 Stratospheric balloon with long flight duration Nov. 30, 1999
5890676 Airship with neutral buoyancy fuel bladder Apr. 6, 1999
5755402 Discoid airship May. 26, 1998
5716693 High strength, lightweight pressurized structure for use as the skin of a spacecraft or other vehicle Feb. 10, 1998
5713536 Aerostat single ballonet system Feb. 3, 1998
5697579 Aircraft having inflatable tubular support structure Dec. 16, 1997
5538203 Ballonet system for a lighter-than-air vehicle Jul. 23, 1996
5333817 Ballonet system for a lighter-than-air vehicle Aug. 2, 1994
5251850 Device for adjustment of the height of an airship Oct. 12, 1993
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
5071090 Airship Dec. 10, 1991
4971269 Protection for spacecraft Nov. 20, 1990
4773617 Lighter-than-air craft Sep. 27, 1988
4711416 Steerable lighter than air balloon Dec. 8, 1987
4326681 Non-rigid airship Apr. 27, 1982
4032085 Dirigible, especially non-rigid dirigible Jun. 28, 1977
4012016 Autonomous variable density aircraft Mar. 15, 1977
3972492 Airship for transporting gas Aug. 3, 1976
3970270 Low speed aircraft Jul. 20, 1976
3957228 Thermodynamic kite May. 18, 1976











 
 
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