ClassID:

144270

F04D29/328 - CPC Classification

Classification description:

Details, component parts, or accessories; Rotors specially for elastic fluids for axial flow pumps for axial flow fans with unequal distribution of blades around the hub

Recent Application in this class:
#1
20240287999
2024-08-29

Impeller blade with uneven spacing

#2
20200116159
2020-04-16

Impeller and fan

#3
20200094942
2020-03-26

Ducted thrusters

#4
20190277304
2019-09-12

PROCESS FOR CALCULATING AN ANGULAR SPACING BETWEEN THE BLADES OF AN AXIAL FAN

#5
20190063464
2019-02-28

ENGINE COOLING FANS WITH UNEVEN BLADE SPACING

#6
20180372120
2018-12-27

AXIAL FLOW FAN

#7
20180320709
2018-11-08

Fan with impeller based on an audio spread-spectrum

#8
20180320705
2018-11-08

Axial fan with unbalanced blade spacing

#9
20180187699
2018-07-05

Centrifugal fan

#10
20180135635
2018-05-17

Airfoil structure having a shape memory alloy actuator

#11
20180051711
2018-02-22

Cooling fan assemblies with selectively activated vibration modes

#12
20170343015
2017-11-30

Compression system for a turbine engine

#13
20170268537
2017-09-21

Non uniform vane spacing

#14
20170067486
2017-03-09

Blower fan

#15
20160265556
2016-09-15

Fan comprising an impeller with blades

#16
20150233390
2015-08-20

Flutter-resistant turbomachinery blades

#17
20150104325
2015-04-16

Fan rotor blade of aircraft jet engine

#18
20140056703
2014-02-27

Cooling device for use with engines

#19
20130292096
2013-11-07

HEAT DISSIPATING FAN AND FAN WHEEL

#20
20130251533
2013-09-26

Compressor wheel

#21
20120099996
2012-04-26

Rotary machine having grooves for control of fluid dynamics

#22
20120099961
2012-04-26

Rotary machine having non-uniform blade and vane spacing

#23
20120003097
2012-01-05

AXIAL FLOW FAN

#24
20110150639
2011-06-23

Fan Device

#25
20110150638
2011-06-23

Fan Device

#26
20110008170
2011-01-13

Shroud and rotary vane wheel of propeller fan and propeller fan

#27
20080101936
2008-05-01

Fan for vehicle

#28
20070031250
2007-02-08

Shroud and rotary vane wheel of propeller fan and propeller fan

#29
20070020101
2007-01-25

Fan rotor design for coincidence avoidance

#30
20060177306
2006-08-10

High efficiency air conditioner condenser fan with performance enhancements