US Patent Class 416
FLUID REACTION SURFACES (I.E., IMPELLERS)-- Main Headings




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Current as of: June, 1999
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CLASS NOTES
1  DF  METHOD OF OPERATION
2  DF  HAVING FRANGIBLE OR FUSIBLE PART OR CONNECTION
3  DF  ACTUATION DIRECTLY RESPONSIVE TO MAGNETIC OR ELECTRICAL EFFECT
4  DF  ROTARY SKIN FRICTION TYPE (E.G., MAGNUS ROTOR, ETC.)
5  DF  WITH ILLUMINATION MEANS
6  DF  DRIVEN BY PULSATING OR DIVERSE WORKING FLUID
7  DF  WORKING MEMBER SUPPORTED ON ENDLESS FLEXIBLE CARRIER {1}
9  DF  WITH MEANS POSITIONING FLUID CURRENT DRIVEN IMPELLER RELATIVE TO FLOW DIRECTION {2}
18  DF  WITH GYROSCOPIC REFERENCE MEANS FOR ROTOR CONTROL
19  DF  SINGLE BLADE ROTARY IMPELLER WITH COUNTERBALANCE
20 R  DF  DRIVE BY FLUID REACTION JET ON WORKING MEMBER {2}
23  DF  WITH MEANS MOVING WORKING FLUID DEFLECTING WORKING MEMBER PART DURING OPERATION (E.G., AILERON, ETC.) {1}
25  DF  INTERRELATED CONTROLS FOR IMPELLER AND DRIVE MEANS {2}
31  DF  WITH CONTROL MEANS RESPONSIVE TO NON-CYCLIC CONDITION SENSING, CENTRIFUGAL ACTUATION, TORQUE OR THRUST {9}
54  DF  OPERATED BY ART DEVICE {4}
61  DF  WITH MEASURING, TESTING, SIGNALLING OR INSPECTION MEANS
62  DF  REMOVABLE AUXILIARY ATTACHMENT TO WORK SURFACE
63  DF  AMBULANT, BODY SUPPORTED OR WITH CARRYING HANDLE
64  DF  TRANSLATORY REACTION MOTION {2}
69  DF  OPERATOR SUPPORTED MANUALLY ACTUATED TYPE {4}
78  DF  CRANK TYPE DIPPING OR STIRRING MOTION
79  DF  OSCILLATORY REACTION MOTION {4}
84  DF  BUOYANT OR INFLATABLE WORKING MEMBER
85  DF  FLOAT SUPPORTED {1}
87  DF  RADIALLY EXTENSIBLE OR RETRACTIBLE ROTOR WORKING MEMBER {2}
90 R  DF  WITH FLUID PASSAGE IN WORKING MEMBER COMMUNICATING WITH WORKING FLUID {3}
93 R  DF  AMBIENT FLUID OR EXHAUST GAS DIRECTED THROUGH HUB, FAIRING OR HOUSING {2}
95  DF  WITH HEATING, COOLING OR THERMAL INSULATION MEANS {1}
98  DF  SUSTAINED ANCILLARY MOVEMENT OF ROTARY WORKING MEMBER (E.G., CYCLIC FEATHERING, ETC.) {9}
120  DF  PLURAL IMPELLERS HAVING RELATIVE MOVEMENT OR INDEPENDENT SUPPORTS {5}
131  DF  ARTICULATED, RESILIENTLY MOUNTED OR SELF-SHIFTING IMPELLER OR WORKING MEMBER {7}
142  DF  WORKING MEMBER FOLDABLE, PIVOTABLE OR COLLAPSIBLE TO NON-USE POSITION {1}
144  DF  WITH WEIGHT-BALANCING MEANS {1}
146 R  DF  COMBINED OR CONVERTIBLE {1}
147  DF  HAVING POSITIVE MEANS FOR IMPELLER ADJUSTMENT {6}
169 R  DF  HAVING CLUTCH OR BRAKE MEANS {1}
170 R  DF  SPECIFIC DRIVE OR TRANSMISSION MEANS {4}
174  DF  HAVING LUBRICATING, SEALING, PACKING OR SPECIFIC BEARING MEANS BETWEEN IMPELLER OR SHAFT AND STATIC PART
175  DF  DIVERSE IMPELLERS OR WORKING MEMBERS
176  DF  SPIRAL BLADE OR FLOW PASSAGE (360 DEGREE) {1}
178  DF  PERIMETRIC BLADING EXTENDING AXIALLY BETWEEN ANNULAR MEMBERS (E.G., SQUIRREL CAGE TYPE, ETC.)
179  DF  ROTOR HAVING FLOW CONFINING OR DEFLECTING WEB, SHROUD OR CONTINUOUS PASSAGE {4}
194  DF  LASHING BETWEEN WORKING MEMBERS OR EXTERNAL BRACING {2}
197 R  DF  CUPPED REACTION SURFACE NORMAL TO ROTATION PLANE {3}
198 R  DF  MULTIPLE AXIALLY SPACED WORKING MEMBERS {4}
202  DF  PROJECTING BLADE AXIS OFFSET FROM ROTATION AXIS
203  DF  UNSYMMETRICAL IMPELLER OR DISSIMILAR WORKING MEMBERS
204 R  DF  SPECIFIC WORKING MEMBER MOUNT {9}
223 R  DF  SPECIFIC BLADE STRUCTURE (E.G., SHAPE, MATERIAL, ETC.) {18}
244 R  DF  SUPPORT MOUNTING, CARRIER OR FAIRING STRUCTURE {4}
247 R  DF  PROTECTIVE SCREEN OR GUARD {1}
248  DF  MISCELLANEOUS (E.G., BLADE ROOT OR ROOT BLOCK, ETC.)
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CROSS-REFERENCE ART COLLECTIONS
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500  DF  VIBRATION DAMPING FEATURES
501  DF  FLY BRUSH TYPE IMPELLER
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DIGESTS
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DIG 1  DF  Stalker
DIG 2  DF  Formulas of curves, etc.
DIG 3  DF  Sheet metal
DIG 4  DF  Fluid current motor and generator
DIG 5  DF  Variable camber or chord length
DIG 6  DF  Supports for natural fluid current motors
DIG 7  DF  Inlet and outlet
DIG 8  DF  Stack or chimney with fluid motor
DIG 9  DF  Savonius