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Class Information
Number: 416/178
Name: Fluid reaction surfaces (i.e., impellers) > Perimetric blading extending axially between annular members (e.g., squirrel cage type, etc.)
Description: Apparatus wherein the impeller* comprises a plurality of blades supported solely at their axial ends by transverse annuli or rings.










Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8678768 Vertical axis turbine Mar. 25, 2014
8403622 Radial-flow, horizontal-axis fluid turbine Mar. 26, 2013
8240997 Centrifugal impeller and centrifugal blower using the centrifugal impeller Aug. 14, 2012
8221069 Multi-blade fan Jul. 17, 2012
8177484 Impeller of multiblade blower and method of manufacuturing the same May. 15, 2012
8177511 Blower wheel May. 15, 2012
8167562 Centrifugal fan and blower having the same May. 1, 2012
8128369 Blower impeller with partial tip blockage Mar. 6, 2012
8113782 Impeller structure of blower Feb. 14, 2012
8092181 Resin cross flow fan and manufacturing method thereof Jan. 10, 2012
8083479 Heat dissipating fan structure of dual motor Dec. 27, 2011
8061993 Vertical axis turbine Nov. 22, 2011
8057185 Forward swept centrifugal fan wheel Nov. 15, 2011
7905708 Fan and impeller thereof Mar. 15, 2011
7815419 Impeller for blower and air conditioner having the same Oct. 19, 2010
7771169 Centrifugal multiblade fan Aug. 10, 2010
7758299 Wind turbine assembly Jul. 20, 2010
7744350 Multiblade fan Jun. 29, 2010
7688579 Portable electronic device incorporating thermal module Mar. 30, 2010
7585154 Centrifugal fan and impeller thereof Sep. 8, 2009
7481616 Centrifugal fan, cooling mechanism, and apparatus furnished with the cooling mechanism Jan. 27, 2009
7422418 Cross flow fan Sep. 9, 2008
7419358 Method and device for compensation of the thermal expansion of a cellular wheel sluice rotors Sep. 2, 2008
7387496 Fan assembly and impeller thereof Jun. 17, 2008
7210907 Centrifugal fan impeller with blades inclined relative to the axis of rotation May. 1, 2007
7195457 Motor-operated fan for air cushion table Mar. 27, 2007
7192254 Radial fan having axial fan blade configuration Mar. 20, 2007
7165942 Fan impeller with integrated grease separation, especially for cooking appliance Jan. 23, 2007
6945753 Smoke exhauster having improved fan device Sep. 20, 2005
6942459 Modified centrifugal fan wheel Sep. 13, 2005
6866481 Ventilator having an optimum fan structure Mar. 15, 2005
6648936 Oil mist eliminator Nov. 18, 2003
6556437 Ergonomic carrier for hot-swap computer components Apr. 29, 2003
6468038 Fan, method for producing the fan by molding molten metal, and device for producing the fan by molding molten metal Oct. 22, 2002
6416285 Process for manufacturing an impeller Jul. 9, 2002
6402473 Centrifugal impeller with high blade camber Jun. 11, 2002
6368062 Turbo fan for range hood and range hood storing turbo fan Apr. 9, 2002
6345956 Impeller of a blower having air-guiding ribs with geometrical configurations Feb. 12, 2002
6220818 Blower wheel assembly with steel hub, and method of making same Apr. 24, 2001
6210114 Cross flow fan for air conditioner Apr. 3, 2001
6206640 Blower wheel assembly with steel hub, and method of making same Mar. 27, 2001
6203278 Blower wheel with center disc having roughened blade engaging surface Mar. 20, 2001
6179566 Blower Wheel assembly with steel hub, and method of making same Jan. 30, 2001
6158954 Cross-flow fan and an air-conditioner using it Dec. 12, 2000
6156090 Air cleaner having vanes with a winglike cross-section between a shroud and baseplate for rotation within a housing Dec. 5, 2000
6149381 Cross flow fan for air conditioner Nov. 21, 2000
6053700 Ducted turbine Apr. 25, 2000
6041853 Ceiling built-in type air conditioner Mar. 28, 2000
6036443 Helical turbine assembly operable under multidirectional gas and water flow for power and propulsion systems Mar. 14, 2000
6023939 Fan and motor assembly for an air conditioner Feb. 15, 2000

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