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Class Information
Number: 416/228
Name: Fluid reaction surfaces (i.e., impellers) > Specific blade structure (e.g., shape, material, etc.) > Tined or irregular periphery
Description: Apparatus wherein the impeller* (1) comprises a plurality of elongate rod-like working members* projecting from a common carrier* or (2) is so shaped as to define an edge outline which markedly deviates from a smooth configuration.










Patents under this class:
1 2 3 4 5 6 7 8

Patent Number Title Of Patent Date Issued
8690536 Turbine blade tip with vortex generators Apr. 8, 2014
8678764 Tip cap for a turbine rotor blade Mar. 25, 2014
8662834 Method for reducing tip rub loading Mar. 4, 2014
8662854 Turbine with turbulence inducing surface Mar. 4, 2014
8657570 Rotor blade with reduced rub loading Feb. 25, 2014
8647071 Hollow turbine wheel vane comprising a rib and associated wheel and turbomachine Feb. 11, 2014
8636469 Marine propeller with reverse thrust cup Jan. 28, 2014
8632311 Flared tip turbine blade Jan. 21, 2014
8628302 Single or multiple stage blower and nested volute(s) and/or impeller(s) therefor Jan. 14, 2014
8616847 Abrasive coated preform for a turbine blade tip Dec. 31, 2013
8608448 Shroudless blade Dec. 17, 2013
8591195 Turbine blade with pressure side stiffening rib Nov. 26, 2013
8585371 Wingtip device for the tip of a wing, blade of a wind generator or marine generator for reducing or even eliminating marginal swirl Nov. 19, 2013
8573946 Compressor blade Nov. 5, 2013
8556579 Composite aerofoil blade with wear-resistant tip Oct. 15, 2013
8540487 Actuatable seal for aerofoil blade tip Sep. 24, 2013
8535008 Turbine and compressor employing tubercle leading edge rotor design Sep. 17, 2013
8523515 Noise reducer for rotor blade in wind turbine Sep. 3, 2013
8517682 Wind turbine blade Aug. 27, 2013
8512003 Tip ramp turbine blade Aug. 20, 2013
8512004 Propeller fan Aug. 20, 2013
8506250 Wind turbine rotor blade with trailing edge extension and method of attachment Aug. 13, 2013
8500396 Cascade tip baffle airfoil Aug. 6, 2013
8491268 Safety propeller Jul. 23, 2013
8480372 System and method for reducing bucket tip losses Jul. 9, 2013
8475130 Axial flow fan Jul. 2, 2013
8439642 Pump and pump impeller May. 14, 2013
8439643 Biformal platform turbine blade May. 14, 2013
8430638 Noise reducer for rotor blade in wind turbine Apr. 30, 2013
8419372 Airfoil having reduced wake Apr. 16, 2013
8419368 High-efficiency turbine construction Apr. 16, 2013
8419373 Wind turbine blade, wind turbine generator equipped with wind turbine blade and method of designing wind turbine blade Apr. 16, 2013
8414261 Noise reducer for rotor blade in wind turbine Apr. 9, 2013
8414265 Turbines and turbine blade winglets Apr. 9, 2013
8376707 Expandable impeller pump Feb. 19, 2013
8371819 Quiet propeller Feb. 12, 2013
8366399 Blade or vane with a laterally enlarged base Feb. 5, 2013
8366400 Compressor rotor Feb. 5, 2013
8360734 Method for repairing an airfoil Jan. 29, 2013
8356979 Fan blade mounting system Jan. 22, 2013
8353665 Impeller for two-chamber extracting blower Jan. 15, 2013
8328513 Systems and apparatus relating to compressor stator blades and diffusers in turbine engines Dec. 11, 2012
8317473 Turbine blade with leading edge edge cooling Nov. 27, 2012
8317482 Swept turbomachine blade Nov. 27, 2012
8297933 Wind turbine blade with modular leading edge Oct. 30, 2012
8267657 Noise reducer for rotor blade in wind turbine Sep. 18, 2012
8257049 Process for building up an edge of a machine component, and machine component remanufacturing strategy Sep. 4, 2012
8251669 Cooling fan Aug. 28, 2012
8251656 Actuation system for a wind turbine blade flap Aug. 28, 2012
8251658 Tip cap for turbine rotor blade Aug. 28, 2012

1 2 3 4 5 6 7 8










 
 
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