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Class Information
Number: 244/199.4
Name: Aeronautics > Aircraft sustentation > Sustaining airfoils > With lift modification > By vortex control outside of boundary layer > Of tip vortex > Wing tip foils/fences
Description: Subject matter in which the airflow modification means is a structure mounted on the tip of the airfoil.










Patents under this class:
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Patent Number Title Of Patent Date Issued
8684315 Active winglet Apr. 1, 2014
8651431 Aircraft with movable winglets and method of control Feb. 18, 2014
8651427 Wing tip device with recess in surface Feb. 18, 2014
8544800 Integrated wingtip extensions for jet transport aircraft and other types of aircraft Oct. 1, 2013
8490925 Non-planar wing tip device for wings of aircraft, and wing comprising such a wing tip device Jul. 23, 2013
8469315 Deployable flap edge fence Jun. 25, 2013
8439313 Forward swept winglet May. 14, 2013
8382040 Hamilton H.N2 laminar flow diskette wing Feb. 26, 2013
8382041 Rakelet Feb. 26, 2013
8371520 Rapidly convertible hybrid aircraft and manufacturing method Feb. 12, 2013
8366056 Winglet Feb. 5, 2013
8342456 Wing tip device Jan. 1, 2013
8333348 Wing tip load alleviation device and method Dec. 18, 2012
8328516 Systems and methods of assembling a rotor blade extension for use in a wind turbine Dec. 11, 2012
8322650 Aircraft Dec. 4, 2012
8220737 VTOL aerial vehicle Jul. 17, 2012
8152465 Rotor blade for a rotor airplane Apr. 10, 2012
8152109 Method and system for controlling fluid flow in relation to a foil and harnessing energy therefrom Apr. 10, 2012
8136766 Frangible fasteners for aircraft components and associated systems and methods Mar. 20, 2012
8128035 Winglets with recessed surfaces, and associated systems and methods Mar. 6, 2012
8096513 Aerodynamic flap of an aircraft having a device which influences the flap vortex Jan. 17, 2012
8083185 Aircraft wing tip having a variable incidence angle Dec. 27, 2011
8061661 System and method for reducing airfoil vortices Nov. 22, 2011
7997538 Aerodynamic fan control effector Aug. 16, 2011
7988099 Winglet Aug. 2, 2011
7988100 Wing tip device Aug. 2, 2011
7971832 Wing tip devices Jul. 5, 2011
7946535 Highly efficient supersonic laminar flow wing May. 24, 2011
7905061 Wind spoiler for roofs Mar. 15, 2011
7900876 Wingtip feathers, including forward swept feathers, and associated aircraft systems and methods Mar. 8, 2011
7900877 Active winglet Mar. 8, 2011
7874524 Methods and apparatus for a multi-segment flap fence Jan. 25, 2011
7753316 Deployable flap edge fence Jul. 13, 2010
7744038 Controllable winglets Jun. 29, 2010
7644892 Blended winglet Jan. 12, 2010
7624951 Aircraft with antennas mounted on the tops and bottoms of aerodynamic-surface extensions Dec. 1, 2009
7520470 Aircraft configuration with improved aerodynamic performance Apr. 21, 2009
7497403 High efficiency tip vortex reversal and induced drag reduction Mar. 3, 2009
7475848 Wing employing leading edge flaps and winglets to achieve improved aerodynamic performance Jan. 13, 2009
7322546 Performance airplane wing with tip tank assembly Jan. 29, 2008
7316371 Method and device for steepening a landing approach of an aircraft Jan. 8, 2008
7207526 High efficiency tip vortex reversal and induced drag reduction Apr. 24, 2007
7100867 Lifting foil Sep. 5, 2006
6892988 Cylindrical wing tip with helical slot May. 17, 2005
6722615 Wing tip extension for a wing Apr. 20, 2004
6589017 Aircraft airfoil assembly and method Jul. 8, 2003
6497600 Automatic pilot system for model aircraft Dec. 24, 2002
6484968 Aircraft with elliptical winglets Nov. 26, 2002
6467732 Rotary blade of helicopter Oct. 22, 2002
6431499 Wing comprising a distal wing grid Aug. 13, 2002

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