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Class Information
Number: 244/123.8
Name: Aeronautics > Aircraft structure > Airfoil construction > Main spar
Description: Subject matter in which substantially all of the rigidity of the airfoil transverse to its length (i.e., the dimension extending generally from the root to the tip of the airfoil) is provided by a beam (i.e., spar) extending along the length of the airfoil and connected to the upper and lower portions of the skin.










Sub-classes under this class:

Class Number Class Name Patents
244/123.9 Tubular spar 24


Patents under this class:

Patent Number Title Of Patent Date Issued
8703269 Reinforced composite structures for aircrafts and methods for making the same Apr. 22, 2014
8434719 Leading edge element of aircraft, method for manufacturing one, wing and stabilizer May. 7, 2013
8418960 Platform Apr. 16, 2013
8342457 Shape-changing structure member with embedded spring Jan. 1, 2013
8276848 Rib structure for torsion boxes of a wing or horizontal stabiliser of an aircraft Oct. 2, 2012
8257048 Wind turbine blade multi-component shear web with intermediate connection assembly Sep. 4, 2012
8220743 Aircraft wing assembly Jul. 17, 2012
8141819 Modular aircraft with removable spar Mar. 27, 2012
8104714 Apparatuses and methods for joining composite members and other structural members in aircraft wing boxes and other structures Jan. 31, 2012
8104709 Lateral force joint Jan. 31, 2012
8100361 Hull structure Jan. 24, 2012
8096503 Structuring construction for an aircraft fuselage Jan. 17, 2012
8091830 Stringer for an aircraft wing and a method of forming thereof Jan. 10, 2012
8087614 Stringer for an aircraft wing and a method of forming thereof Jan. 3, 2012
8056859 Airplane wing structure Nov. 15, 2011
8016249 Shape-changing structure member with embedded spring Sep. 13, 2011
7909952 Method for assembling main wing made of aluminum alloy Mar. 22, 2011
7677496 Stringer for an aircraft wing and a method of reinforcing thereof Mar. 16, 2010
7637454 Apparatus and method for controlling twist of a wing of an airborne mobile platform Dec. 29, 2009
7316372 Fuselage spar for aircraft and central sparbox provided with such a spar Jan. 8, 2008
7198691 Fastenerless internal support for hollow structures Apr. 3, 2007
6869050 Profiled wing unit of an aircraft Mar. 22, 2005
6676077 High temperature resistant airfoil apparatus for a hypersonic space vehicle Jan. 13, 2004
6375120 Method and apparatus for building a metal/composite hybrid airplane component Apr. 23, 2002
6098927 Multi-purpose aircraft Aug. 8, 2000
6000660 Rotary beam variable stiffness wing spar Dec. 14, 1999
5848765 Reduced amplitude corrugated web spar Dec. 15, 1998
5476704 Plastic-composite profiled girder, in particular a wing spar for aircraft and for wind-turbine rotors Dec. 19, 1995
5474631 Tension bonding process Dec. 12, 1995
5137228 Rotary wing with torsionally flexible blades Aug. 11, 1992
4739954 Over-lap rib joint Apr. 26, 1988
4667905 High strength to weight horizontal and vertical aircraft stabilizer May. 26, 1987
4535958 Aluminum composite spar wing structure and method of assembly Aug. 20, 1985
4096012 Method of forming a spar layup for an aerodynamic rotor blade Jun. 20, 1978











 
 
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