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Class Information
Number: 416/239
Name: Fluid reaction surfaces (i.e., impellers) > Specific blade structure (e.g., shape, material, etc.) > Blade cuff or shank construction
Description: Apparatus comprising (1) fairing structure supported adjacent the inner end of the blade or (2) the specific shape or construction of the lower portion of the blade intermediate the reaction surface and the root, as in Fig. II in the Class Definition of this class.










Patents under this class:
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Patent Number Title Of Patent Date Issued
8702395 Hub fin device Apr. 22, 2014
8622707 Root attachment for a rotor blade assembly Jan. 7, 2014
8568103 Wind turbine rotor blade Oct. 29, 2013
8550783 Turbine blade platform undercut Oct. 8, 2013
8540481 Rotor blade assembly Sep. 24, 2013
8523526 Cooled blade for a gas turbine Sep. 3, 2013
8435008 Turbine blade including mistake proof feature May. 7, 2013
8430633 Blade extension for rotor blade in wind turbine Apr. 30, 2013
8403642 Wind turbine rotor blade assembly with root curtain Mar. 26, 2013
8393869 Turbine blade assembly including a damper Mar. 12, 2013
8376703 Blade extension for rotor blade in wind turbine Feb. 19, 2013
8360719 Fan Jan. 29, 2013
8353673 Main rotor blade with integral cuff Jan. 15, 2013
8348621 Vane for aircraft turbine engine receiver, provided with two hollow cores lodged in one another Jan. 8, 2013
8287241 Turbine blade platform trailing edge undercut Oct. 16, 2012
8282354 Reduced weight blade for a gas turbine engine Oct. 9, 2012
8267651 Pitch of blades on a wind power plant Sep. 18, 2012
8235672 Fan Aug. 7, 2012
8206116 Method for loading and locking tangential rotor blades and blade design Jun. 26, 2012
8128375 Turbomachine blade that is cast with a local fattening of the section of the airfoil Mar. 6, 2012
8123463 Method and system for manufacturing a blade Feb. 28, 2012
8113788 Rotor blade Feb. 14, 2012
8047792 Wind turbine pitch bearing, and use hereof Nov. 1, 2011
8007245 Shank shape for a turbine blade and turbine incorporating the same Aug. 30, 2011
7972114 Composite blade root structure Jul. 5, 2011
7946827 Blades May. 24, 2011
7845910 Propeller blade retention system with tapered roller bearing cartridge assemblies Dec. 7, 2010
7832985 Rotor blade and wind energy plant Nov. 16, 2010
7766621 Split shank rotor blade Aug. 3, 2010
7736131 Turbine blade with carbon nanotube shell Jun. 15, 2010
7578059 Method for manufacturing constituents of a hollow blade by rolling Aug. 25, 2009
7575416 Rotor assembly for a rotary machine Aug. 18, 2009
7549846 Turbine blades Jun. 23, 2009
7517194 Rotor blade for a wind turbine Apr. 14, 2009
7481614 Moving blade and gas turbine using the same Jan. 27, 2009
7438533 Wind turbine rotor blade Oct. 21, 2008
7422419 Propeller blade retention system Sep. 9, 2008
7252481 Natural frequency tuning of gas turbine engine blades Aug. 7, 2007
7165944 Compressor blade with dovetail slotted to reduce stress on the airfoil leading edge Jan. 23, 2007
7128537 Rotor blade for a flow machine, and an associated pulling-off tool Oct. 31, 2006
7121802 Selectively thinned turbine blade Oct. 17, 2006
7097429 Skirted turbine blade Aug. 29, 2006
7090466 Methods and apparatus for assembling gas turbine engine rotor assemblies Aug. 15, 2006
6957948 Turbine blade attachment lightening holes Oct. 25, 2005
6666651 Composite propeller blade with unitary metal ferrule and method of manufacture Dec. 23, 2003
6506016 Angel wing seals for blades of a gas turbine and methods for determining angel wing seal profiles Jan. 14, 2003
6450769 Blade assembly with damping elements Sep. 17, 2002
6435834 Bucket and wheel dovetail connection for turbine rotors Aug. 20, 2002
6435833 Bucket and wheel dovetail connection for turbine rotors Aug. 20, 2002
6290464 Turbomachine rotor blade and disk Sep. 18, 2001

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