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Class Information
Number: 416/232
Name: Fluid reaction surfaces (i.e., impellers) > Specific blade structure (e.g., shape, material, etc.) > Hollow
Description: Apparatus wherein the blade comprises a shell which defines a blade cavity.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7607287 |
Airfoil acoustic impedance control |
Oct. 27, 2009 |
| 7607894 |
Wind turbine blade |
Oct. 27, 2009 |
| 7594325 |
Aerofoil and a method of manufacturing an aerofoil |
Sep. 29, 2009 |
| 7588421 |
Methods and apparatus for mechanical retainment of non-metallic fillers in pockets |
Sep. 15, 2009 |
| 7578059 |
Method for manufacturing constituents of a hollow blade by rolling |
Aug. 25, 2009 |
| 7510366 |
Vertical axis type wind power station |
Mar. 31, 2009 |
| 7481573 |
Mixing impeller with pre-shaped tip elements |
Jan. 27, 2009 |
| 7441331 |
Turbine engine component manufacture methods |
Oct. 28, 2008 |
| 7438523 |
Blade for a turbine engine and method for production of said blade |
Oct. 21, 2008 |
| 7413409 |
Turbine airfoil with weight reduction plenum |
Aug. 19, 2008 |
| 7393184 |
Modular blades and methods for making same |
Jul. 1, 2008 |
| 7371049 |
Manufacturable and inspectable microcircuit cooling for blades |
May. 13, 2008 |
| 7334333 |
Method for making a hollow fan blade with machined internal cavities |
Feb. 26, 2008 |
| 7329102 |
Blade |
Feb. 12, 2008 |
| 7322798 |
High structural efficiency blades and devices using same |
Jan. 29, 2008 |
| 7311497 |
Manufacturable and inspectable microcircuits |
Dec. 25, 2007 |
| 7300256 |
Damping arrangement for a blade of an axial turbine |
Nov. 27, 2007 |
| 7300251 |
Turbine cooling vane of gas turbine engine |
Nov. 27, 2007 |
| 7258530 |
CMC component and method of fabrication |
Aug. 21, 2007 |
| 7251888 |
Hollow fan blade for aircraft engines and method for its manufacture |
Aug. 7, 2007 |
| 7252480 |
Methods for generation of dual thickness internal pack coatings and objects produced thereby |
Aug. 7, 2007 |
| 7189064 |
Friction stir welded hollow airfoils and method therefor |
Mar. 13, 2007 |
| 7118346 |
Compressor blade |
Oct. 10, 2006 |
| 7112044 |
Blades |
Sep. 26, 2006 |
| 7104762 |
Reduced weight control stage for a high temperature steam turbine |
Sep. 12, 2006 |
| 7094445 |
Dimensionally controlled pack aluminiding of internal surfaces of a hollow article |
Aug. 22, 2006 |
| 7070390 |
Component with internal damping |
Jul. 4, 2006 |
| 7029235 |
Cooling system for a tip of a turbine blade |
Apr. 18, 2006 |
| 7021899 |
Lightened turbomachine blade and its manufacturing process |
Apr. 4, 2006 |
| 6979173 |
Turbine blade or vane |
Dec. 27, 2005 |
| 6979180 |
Hollow component with internal damping |
Dec. 27, 2005 |
| 6830436 |
Wind turbine provided with nacelle |
Dec. 14, 2004 |
| 6802122 |
Method of manufacturing an article |
Oct. 12, 2004 |
| 6695582 |
Turbine blade wall cooling apparatus and method of fabrication |
Feb. 24, 2004 |
| 6514040 |
Turbine engine damper |
Feb. 4, 2003 |
| 6454533 |
Hollow blade for hydraulic turbine or pump |
Sep. 24, 2002 |
| 6443700 |
Transpiration-cooled structure and method for its preparation |
Sep. 3, 2002 |
| 6435825 |
Hollow nozzle partition with optimized wall thickness and method of forming |
Aug. 20, 2002 |
| 6398501 |
Apparatus for reducing thermal stress in turbine airfoils |
Jun. 4, 2002 |
| 6375422 |
Apparatus for pumping liquids at or below the boiling point |
Apr. 23, 2002 |
| 6368062 |
Turbo fan for range hood and range hood storing turbo fan |
Apr. 9, 2002 |
| 6334753 |
Streamlined bodies with counter-flow fluid injection |
Jan. 1, 2002 |
| 6257828 |
Turbine blade and method of producing a turbine blade |
Jul. 10, 2001 |
| 6250886 |
Axial flow fan and fan blade |
Jun. 26, 2001 |
| 6227798 |
Turbine nozzle segment band cooling |
May. 8, 2001 |
| 6193468 |
Hollow-cast component |
Feb. 27, 2001 |
| 6155783 |
Hollow blade for hydraulic turbine or pump |
Dec. 5, 2000 |
| 6139976 |
Article having a superalloy substrate and an enrichment layer placed thereon, and methods of its manufacturing |
Oct. 31, 2000 |
| 6132826 |
Method of manufacturing hollow blade and hollow blade manufactured by same |
Oct. 17, 2000 |
| 6113353 |
Axial fan |
Sep. 5, 2000 |
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