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Class Information
Number: 29/889.721
Name: Metal working > Method of mechanical manufacture > Impeller making > Blade making > Hollow blade > With cooling passage
Description: Process wherein the interior open space serves to allow fluid to flow within the blade for heat dissipation purposes.

Sub-classes under this class:

Class Number Class Name Patents
29/889.722 Passage contains tubular insert 34

Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8704128 Method for producing a hole Apr. 22, 2014
8684664 Apparatus and methods for cooling platform regions of turbine rotor blades Apr. 1, 2014
8672613 Components with conformal curved film holes and methods of manufacture Mar. 18, 2014
8636471 Apparatus and methods for cooling platform regions of turbine rotor blades Jan. 28, 2014
8632312 Reinforced blade for wind turbine Jan. 21, 2014
8628300 Apparatus and methods for cooling platform regions of turbine rotor blades Jan. 14, 2014
8615875 Method of manufacturing a blading component Dec. 31, 2013
8601691 Component and methods of fabricating a coated component using multiple types of fillers Dec. 10, 2013
8562295 Three piece bonded thin wall cooled blade Oct. 22, 2013
8533949 Methods of manufacture for components with cooling channels Sep. 17, 2013
8528208 Methods of fabricating a coated component using multiple types of fillers Sep. 10, 2013
8506256 Thin walled turbine blade and process for making the blade Aug. 13, 2013
8496440 Method of manufacturing an aerofoil Jul. 30, 2013
8453327 Sprayed skin turbine component Jun. 4, 2013
8387245 Components with re-entrant shaped cooling channels and methods of manufacture Mar. 5, 2013
8382439 Process of forming a high temperature turbine rotor blade Feb. 26, 2013
8277193 Thin walled turbine blade and process for making the blade Oct. 2, 2012
8268233 Eddy-free high velocity cooler Sep. 18, 2012
8267659 Turbine blade Sep. 18, 2012
8177696 Method and apparatus for milling thermal barrier coated metals May. 15, 2012
8157525 Methods and apparatus relating to turbine airfoil cooling apertures Apr. 17, 2012
8153923 Method for producing a hole Apr. 10, 2012
8109712 Method of producing a turbine or compressor component, and turbine or compressor component Feb. 7, 2012
8092159 Feeding film cooling holes from seal slots Jan. 10, 2012
8020296 Method for the production of secondary fluid ducts Sep. 20, 2011
8015705 Spar and shell blade with segmented shell Sep. 13, 2011
7992272 Method and apparatus for milling thermal barrier coated metals Aug. 9, 2011
7950147 Method for producing gas turbine components May. 31, 2011
7841083 Method of manufacturing a turbomachine component that includes cooling air discharge orifices Nov. 30, 2010
7805822 Process for removing thermal barrier coatings Oct. 5, 2010
7784183 System and method for adjusting performance of manufacturing operations or steps Aug. 31, 2010
7772314 Masking material for holes of a component Aug. 10, 2010
7731481 Airfoil cooling with staggered refractory metal core microcircuits Jun. 8, 2010
7640661 Process for manufacturing a reinforcing leading or trailing edge for a fan blade Jan. 5, 2010
7625178 High effectiveness cooled turbine blade Dec. 1, 2009
7584538 Method of forming a turbine blade with cooling channels Sep. 8, 2009
7540083 Method to modify an airfoil internal cooling circuit Jun. 2, 2009
7491033 Fluid flow machine blade Feb. 17, 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
7410342 Airfoil support Aug. 12, 2008
7371049 Manufacturable and inspectable microcircuit cooling for blades May. 13, 2008
7364405 Microcircuit cooling for vanes Apr. 29, 2008
7334333 Method for making a hollow fan blade with machined internal cavities Feb. 26, 2008
7311497 Manufacturable and inspectable microcircuits Dec. 25, 2007
7303375 Refractory metal core cooling technologies for curved leading edge slots Dec. 4, 2007
7241107 Gas turbine airfoil with adjustable cooling air flow passages Jul. 10, 2007
7223072 Gas turbine engine including airfoils having an improved airfoil film cooling configuration and method therefor May. 29, 2007
7216485 Adjusting airflow in turbine component by depositing overlay metallic coating May. 15, 2007
7204019 Method for repairing an apertured gas turbine component Apr. 17, 2007

1 2 3

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