| Class Number |
Class Name |
Patents |
| 416/1 |
Method of operation |
177 |
| 416/120 |
Plural impellers having relative movement or independent supports |
21 |
| 416/131 |
Articulated, resiliently mounted or self-shifting impeller or working member |
46 |
| 416/142 |
Working member foldable, pivotable or collapsible to non-use position |
152 |
| 416/144 |
With weight-balancing means |
118 |
| 416/146R |
Combined or convertible |
199 |
| 416/147 |
Having positive means for impeller adjustment |
53 |
| 416/169R |
Having clutch or brake means |
86 |
| 416/170R |
Specific drive or transmission means |
271 |
| 416/174 |
Having lubricating, sealing, packing or specific bearing means between impeller or shaft and static part |
138 |
| 416/175 |
Diverse impellers or working members |
121 |
| 416/176 |
Spiral blade or flow passage (360 degree) |
74 |
| 416/178 |
Perimetric blading extending axially between annular members (e.g., squirrel cage type, etc.) |
82 |
| 416/179 |
Rotor having flow confining or deflecting web, shroud or continuous passage |
51 |
| 416/18 |
With gyroscopic reference means for rotor control |
8 |
| 416/19 |
Single blade rotary impeller with counterbalance |
23 |
| 416/194 |
Lashing between working members or external bracing |
29 |
| 416/197R |
Cupped reaction surface normal to rotation plane |
28 |
| 416/198R |
Multiple axially spaced working members |
88 |
| 416/2 |
Having frangible or fusible part or connection |
65 |
| 416/202 |
Projecting blade axis offset from rotation axis |
28 |
| 416/203 |
Unsymmetrical impeller or dissimilar working members |
156 |
| 416/204R |
Specific working member mount |
141 |
| 416/20R |
Drive by fluid reaction jet on working member |
42 |
| 416/223R |
Specific blade structure (e.g., shape, material, etc.) |
394 |
| 416/23 |
With means moving working fluid deflecting working member part during operation (e.g., aileron, etc.) |
91 |
| 416/244R |
Support mounting, carrier or fairing structure |
434 |
| 416/247R |
Protective screen or guard |
169 |
| 416/248 |
Miscellaneous (e.g., blade root or root block, etc.) |
251 |
| 416/25 |
Interrelated controls for impeller and drive means |
16 |
| 416/3 |
Actuation directly responsive to magnetic or electrical effect |
55 |
| 416/31 |
With control means responsive to non-cyclic condition sensing, centrifugal actuation, torque or thrust |
54 |
| 416/4 |
Rotary skin friction type (e.g., magnus rotor, etc.) |
30 |
| 416/5 |
With illumination means |
301 |
| 416/500 |
Vibration damping features |
395 |
| 416/501 |
Fly brush type impeller |
1 |
| 416/54 |
Operated by art device |
2 |
| 416/6 |
Driven by pulsating or diverse working fluid |
9 |
| 416/61 |
With measuring, testing, signalling or inspection means |
163 |
| 416/62 |
Removable auxiliary attachment to work surface |
80 |
| 416/63 |
Ambulant, body supported or with carrying handle |
52 |
| 416/64 |
Translatory reaction motion |
8 |
| 416/69 |
Operator supported manually actuated type |
2 |
| 416/7 |
Working member supported on endless flexible carrier |
21 |
| 416/78 |
Crank type dipping or stirring motion |
2 |
| 416/79 |
Oscillatory reaction motion |
21 |
| 416/84 |
Buoyant or inflatable working member |
31 |
| 416/85 |
Float supported |
79 |
| 416/87 |
Radially extensible or retractible rotor working member |
67 |
| 416/9 |
With means positioning fluid current driven impeller relative to flow direction |
56 |
| 416/90R |
With fluid passage in working member communicating with working fluid |
47 |
| 416/93R |
Ambient fluid or exhaust gas directed through hub, fairing or housing |
56 |
| 416/95 |
With heating, cooling or thermal insulation means |
300 |
| 416/98 |
Sustained ancillary movement of rotary working member (e.g., cyclic feathering, etc.) |
19 |
| 416/DIG.1 |
Stalker |
0 |
| 416/DIG.2 |
Formulas of curves, etc. |
287 |
| 416/DIG.3 |
Sheet metal |
72 |
| 416/DIG.4 |
Fluid current motor and generator |
131 |
| 416/DIG.5 |
Variable camber or chord length |
130 |
| 416/DIG.6 |
Supports for natural fluid current motors |
60 |
| 416/DIG.7 |
Inlet and outlet |
5 |
| 416/DIG.8 |
Stack or chimney with fluid motor |
20 |
| 416/DIG.9 |
Savonius |
11 |
