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Class Information
Number: 416/213
Name: Fluid reaction surfaces (i.e., impellers) >

Sub-classes under this class:

Class Number Class Name Patents
416/1 Method of operation 472
416/120 Plural impellers having relative movement or independent supports 43
416/131 Articulated, resiliently mounted or self-shifting impeller or working member 62
416/142 Working member foldable, pivotable or collapsible to non-use position 187
416/144 With weight-balancing means 150
416/146R Combined or convertible 281
416/147 Having positive means for impeller adjustment 92
416/169R Having clutch or brake means 114
416/170R Specific drive or transmission means 342
416/174 Having lubricating, sealing, packing or specific bearing means between impeller or shaft and static part 205
416/175 Diverse impellers or working members 163
416/176 Spiral blade or flow passage (360 degree) 101
416/178 Perimetric blading extending axially between annular members (e.g., squirrel cage type, etc.) 101
416/179 Rotor having flow confining or deflecting web, shroud or continuous passage 62
416/18 With gyroscopic reference means for rotor control 10
416/19 Single blade rotary impeller with counterbalance 27
416/194 Lashing between working members or external bracing 33
416/197R Cupped reaction surface normal to rotation plane 39
416/198R Multiple axially spaced working members 128
416/2 Having frangible or fusible part or connection 84
416/202 Projecting blade axis offset from rotation axis 36
416/203 Unsymmetrical impeller or dissimilar working members 220
416/204R Specific working member mount 219
416/20R Drive by fluid reaction jet on working member 53
416/223R Specific blade structure (e.g., shape, material, etc.) 585
416/23 With means moving working fluid deflecting working member part during operation (e.g., aileron, etc.) 145
416/244R Support mounting, carrier or fairing structure 586
416/247R Protective screen or guard 194
416/248 Miscellaneous (e.g., blade root or root block, etc.) 343
416/25 Interrelated controls for impeller and drive means 21
416/3 Actuation directly responsive to magnetic or electrical effect 58
416/31 With control means responsive to non-cyclic condition sensing, centrifugal actuation, torque or thrust 91
416/4 Rotary skin friction type (e.g., magnus rotor, etc.) 37
416/5 With illumination means 335
416/500 Vibration damping features 524
416/501 Fly brush type impeller 2
416/54 Operated by art device 2
416/6 Driven by pulsating or diverse working fluid 16
416/61 With measuring, testing, signalling or inspection means 342
416/62 Removable auxiliary attachment to work surface 115
416/63 Ambulant, body supported or with carrying handle 64
416/64 Translatory reaction motion 9
416/69 Operator supported manually actuated type 3
416/7 Working member supported on endless flexible carrier 30
416/78 Crank type dipping or stirring motion 3
416/79 Oscillatory reaction motion 26
416/84 Buoyant or inflatable working member 40
416/85 Float supported 102
416/87 Radially extensible or retractible rotor working member 82
416/9 With means positioning fluid current driven impeller relative to flow direction 82
416/90R With fluid passage in working member communicating with working fluid 85
416/93R Ambient fluid or exhaust gas directed through hub, fairing or housing 71
416/95 With heating, cooling or thermal insulation means 370
416/98 Sustained ancillary movement of rotary working member (e.g., cyclic feathering, etc.) 29
416/DIG.1 Stalker 0
416/DIG.2 Formulas of curves, etc. 368
416/DIG.3 Sheet metal 74
416/DIG.4 Fluid current motor and generator 137
416/DIG.5 Variable camber or chord length 159
416/DIG.6 Supports for natural fluid current motors 98
416/DIG.7 Inlet and outlet 5
416/DIG.8 Stack or chimney with fluid motor 20
416/DIG.9 Savonius 17

Patents under this class:

Patent Number Title Of Patent Date Issued

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