PTO Manual of Classification for US patents

PTO Manual of Classification for US patents

What follows are the subclasses from one class of the Manual of Classification for US patents. As you scroll through the list and encounter a class/subclass of interest, you can jump back to the top and retrieve patent titles by entering the class/subclass in the box below.


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Class Number: 416
 Class Title: FLUID REACTION SURFACES (I.E., IMPELLERS)

Subclass  Subclass
Number    Title

  1       METHOD OF OPERATION
  2       HAVING FRANGIBLE OR FUSIBLE PART OR CONNECTION
  3       ACTUATION DIRECTLY RESPONSIVE TO MAGNETIC OR ELECTRICAL EFFECT
  4       ROTARY SKIN FRICTION TYPE (E.G., MAGNUS ROTOR, ETC.)
  5       WITH ILLUMINATION MEANS
  6       DRIVEN BY PULSATING OR DIVERSE WORKING FLUID
  7       WORKING MEMBER SUPPORTED ON ENDLESS FLEXIBLE CARRIER
  8       .Feathering blades
  9       WITH MEANS POSITIONING FLUID CURRENT DRIVEN IMPELLER RELATIVE TO
           FLOW DIRECTION
  10      .Offset relative to flow direction
  11      ..Upstream pivotal mounting
  12      ..Responsive to folding or feathering of flow-aligned vane
  13      ..Horizontal deflection relative to flow-aligned vane
  14      ...With impeller brake or stop
  15      ...And responsive to transverse vane
  16      ...Biased to position by weight of parts
  17      .Feathering cycle related to flow direction
  18      WITH GYROSCOPIC REFERENCE MEANS FOR ROTOR CONTROL
  19      SINGLE BLADE ROTARY IMPELLER WITH COUNTERBALANCE
  20 R    DRIVE BY FLUID REACTION JET ON WORKING MEMBER
  21      .Combustion chamber carried by member
  22      ..Air-ingestion rotor tip unit
  20 A    .Articulated or flexible connection
  23      WITH MEANS MOVING WORKING FLUID DEFLECTING WORKING MEMBER PART
           DURING OPERATION (E.G., AILERON, ETC.)
  24      .Cyclic movement of member or part
  25      INTERRELATED CONTROLS FOR IMPELLER AND DRIVE MEANS
  26      .Pitch adjustment related to drive brake or clutch operation
  27      .Pitch adjustment and throttle regulation with condition sensing
            means
  28      ..Temperature responsive control
  29      ..Drive engine intake air responsive control
  30      ..Electrical control or sensing means
  31      WITH CONTROL MEANS RESPONSIVE TO NON-CYCLIC CONDITION SENSING,
           CENTRIFUGAL ACTUATION, TORQUE OR THRUST
  32      .Control of drive brake or clutch
  33      .Plural distinct impellers having related control
  34      ..Synchronizing
  35      .With electrical means comparing and reducing error related to
            preset datum
  36      .Plural diverse condition responsive
  37      ..Relative ambient condition sensing (e.g., temperature,
             density, wind force, etc.)
  38      ..Drive engine condition excluding shaft speed or torque
  39      .Temperature or icing condition responsive
  40      .Responsive to relative working fluid velocity
  41      ..Natural fluid current
  42      .Pressure or altitude responsive
  43      .Responsive to condition of torque or thrust of device or
            driving or driven means or mechanism
  44      .Impeller rotation speed responsivee
  45      ..Valve element directly movable by centrifugal force
  46      ..Including pitch lock or adjustable stop
  47      ..Control by means of separate motor
  48      ...Motor carried by impeller
  49      ..Including reset or manual override of control
  50      ...Of centrifugal weight governor
  51      ..Centrifugal mass moved along guided or lineal path
  52      ..Centrifugal mass coaxial with impeller
  53      ...Pivot axis parallel to rotation axis
  54      OPERATED BY ART DEVICE
  55      .Vehicular device
  56      .Runner supported rocking device
  57      ..Inertial actuation
  58      ..Continuous impeller rotation
  59      .Pivot supported swinging device
  60      .Integral with or directly attached to rotary device or part
            (e.g., flywheel, pulley, etc.)
  61      WITH MEASURING, TESTING, SIGNALLING OR INSPECTION MEANS
  62      REMOVABLE AUXILIARY ATTACHMENT TO WORK SURFACE
  63      AMBULANT, BODY SUPPORTED OR WITH CARRYING HANDLE
  64      TRANSLATORY REACTION MOTION
  65      .And concurrent rotary reaction motion
  66      .Flexible or relatively movable working member or part
  67      ..Valve type
  68      ..Complemental pivoted surfaces
  69      OPERATOR SUPPORTED MANUALLY ACTUATED TYPE
  70 R    .Operation solely by direct hand manipulation
  71      ..Simulation or having indicia, ornamentation or combined
             feature
  72      ..Relatively movable portions
  73      ...Arcuate planar folding of working surface
  70 A    ..Fans
  74      .Fulcrum support type (e.g., oar, scull, etc.)
  75      .Reciprocatory pin-slot actuator
  76      .Rotary hand crank (e.g., egg beater, etc.)
  77      ..Intermeshing or interdigitated working members
  78      CRANK TYPE DIPPING OR STIRRING MOTION
  79      OSCILLATORY REACTION MOTION
  80      .With pendulum, counterbalance or inertial weight
  81      .Flexible working member
  82      .Relatively movable working member portions
  83      .Compound motion (e.g., feathering, undulating, etc.)
  84      BUOYANT OR INFLATABLE WORKING MEMBER
  85      FLOAT SUPPORTED
  86      .Buoyant hub or rim
  87      RADIALLY EXTENSIBLE OR RETRACTIBLE ROTOR WORKING MEMBER
  88      .Variable work surface or non-rigid connection
  89      .Having pitch adjustment
  90 R    WITH FLUID PASSAGE IN WORKING MEMBER COMMUNICATING WITH
           WORKING FLUID
  91      .Both inlet and outlet to working fluid
  92      .Discharge solely at periphery normal to rotation axis
  90 A    .Air and watercraft propellers
  93 R    AMBIENT FLUID OR EXHAUST GAS DIRECTED THROUGH HUB, FAIRING
           OR HOUSING
  94      .Aircraft spinner or cowling
  93 A    .Water or marine propellers
  95      WITH HEATING, COOLING OR THERMAL INSULATION MEANSS
  96 R    .Changing state mass within or fluid flow through working
            member or carrier
  97 R    ..Flow exhausted to working fluid
  97 A    ...Laminated or porous skin
  96 A    ..Blade inserts
  98      SUSTAINED ANCILLARY MOVEMENT OF ROTARY WORKING MEMBER (E.G.,
           CYCLIC FEATHERING, ETC.)
  99      .Intermounted rotary members
  100     .Continuous rotor oscillation
  101     .Cyclic radial movement
  102     .Responsive to carrier tilt
  103     .Lead-lag type rotor blade movement
  104     ..And additional correlated blade movement (e.g., pitch change,
             etc.)
  105     ..Positive means effecting lead-lag movement
  106     ..With movement restraining means (i.e., damping)
  107     ...Resilient bias or limit stop
  108     .By actuator eccentric to rotation axis
  109     ..Stationary eccentric guide or track
  110     .Continuous rotation about plural axes
  111     ..Motion about parallel axes
  112     .Responsive to fixed actuator (e.g., cam or trip, etc.)
  113     ..Axial cam
  114     ...Selectively adjustable
  115     ....Plural impellers
  116     ..Stationary cam track or guide surface
  117     .Responsive to gravity or working fluid force
  118     ..Having manual control or adjustment
  119     ..Motion about parallel axes
  120     PLURAL IMPELLERS HAVING RELATIVE MOVEMENT OR INDEPENDENT
           SUPPORTS
  121     .Shiftable support
  122     .Intersecting or interdigitated paths of operation
  123     .Divergent rotation axes
  124     .Coaxial rotation
  125     ..Individual prime mover
  126     ..Concentric working members
  127     ..Concurrent adjustment
  128     ..Oppositely rotating impellers
  129     ...Engine driven
  130     .Differential or independent adjustment
  131     ARTICULATED, RESILIENTLY MOUNTED OR SELF-SHIFTING IMPELLER OR
           WORKING MEMBER
  132 R   .Sectional, staged or nonrigid working member
  132 A   ..Flexible sheet or plate
  132 B   ..Windmills
  133     .Axially displaceable rotary carrier (e.g., hub, etc.)
  134 R   .Nonmetallic resilient mounting
  134 A   ..Aircraft rotors
  135     .Resilient bias or mount
  136     ..Rotary working member pivotable solely about radial axis
  137     ...Convolute spring coaxial with impeller shaft
  138     ..With manual control means
  139     .Including weight bias means
  140     .Including movement limit stop or damping means
  141     .Plural articulation
  142     WORKING MEMBER FOLDABLE, PIVOTABLE OR COLLAPSIBLE TO NON-USE
           POSITIONN
  143     .Member movement in rotation plane
  144     WITH WEIGHT-BALANCING MEANS
  145     .Self-shifting or selectively adjustable mass
  146 R   COMBINED OR CONVERTIBLE
  146 A   .Hub lubrication or seal
  147     HAVING POSITIVE MEANS FOR IMPELLER ADJUSTMENT
  148     .Tiltable carrier (e.g., hub, etc.)
  149     .Shiftable carrier support
  150     ..Rectilinear motion
  151     .Power derived from impeller shaft
  152     ..By brake application or release
  153     .Having pitch lock or adjustable stop
  154     ..Fluid motor for impeller adjustment
  155     .Motor bodily rotatable with impeller hub or shaft
  156     ..Fluid motor
  157 R   ...Coaxial with impeller shaft
  157 A   ....Rotary fluid motor
  157 B   ....Plural blade units
  158     ...Working member mounted or housed
  159     .Power or manual actuator on non-rotatable part
  160     ..Planetary gearing connecting rotatable and non-rotatable
             parts
  161     ..Axially movable impeller
  162     ..Having motor
  163     ..Adjustment rod through entire impeller shaft
  164     ..Reciprocating sleeve or collar on or rod in impeller shaft
  165     ...Reciprocated by coaxial screw
  166     ...Rack-pinion connection to working member
  167     ...Pin-slot or cam-slot connection to working member
  168 R   ...Link connection to working member
  168 A   ....Turbo-machine
  169 R   HAVING CLUTCH OR BRAKE MEANS
  169 A   .Engine cooling fans
  170 R   SPECIFIC DRIVE OR TRANSMISSION MEANS
  171     .Impeller driven by fluid motor
  172     .Alternating rotation
  173     .Manual powered means
  170 HM  .Hand mixers
  174     HAVING LUBRICATING, SEALING, PACKING OR SPECIFIC BEARING MEANS
           BETWEEN IMPELLER OR SHAFT AND STATIC PART
  175     DIVERSE IMPELLERS OR WORKING MEMBERS
  176     SPIRAL BLADE OR FLOW PASSAGE (360 DEGREE)
  177     .Flow confining casing, shroud or passage
  178     PERIMETRIC BLADING EXTENDING AXIALLY BETWEEN ANNULAR MEMBERS
           (E.G., SQUIRREL CAGE TYPE, ETC.)
  179     ROTOR HAVING FLOW CONFINING OR DEFLECTING WEB, SHROUD OR
           CONTINUOUS PASSAGE
  180     .Blades projecting axially from concavo-convex annular web
  181     .Apertured or foraminous web or shroud
  182     .Radially extending web or end plate
  183     ..Circumferentially or radially angulated or discontinuous
             blades or sections (e.g., stepped, etc.)
  184     ..Spaced intermediate ends of opposed axial flow impeller
  185     ..Circumferentially and radially continuous web or end plate
  186 R   ...Having opposed annular surface between adjacent blades
  187     ....Angularly spaced, axially elongated blades (i.e., squirrel
               cage type)
  186 A   ....Adjustable blade or partt
  188     ...Conical web
  189     .Axially extending shroud ring or casing
  190     ..Vibration inhibiting or expansion-contraction structure
  191     ..Segmental shroud
  192     ..Having radial flange
  193 R   ..Spaced inwardly of impeller periphery
  193 A   ...Root platforms
  194     LASHING BETWEEN WORKING MEMBERS OR EXTERNAL BRACING
  195     .Peripheral
  196 R   .Connecting adjacent work surfaces
  196 A   ..Non-turbo machine (windmills)
  197 R   CUPPED REACTION SURFACE NORMAL TO ROTATION PLANE
  197 A   .Air and water motors (natural fluid current)
  197 B   .Pelton wheels (impulse wheels)
  197 C   .Torque converters
  198 R   MULTIPLE AXIALLY SPACED WORKING MEMBERS
  199     .Opposed axial flow
  200 R   .Circumferentially offset
  200 A   ..Turbo machine
  201 R   .Differing radii
  201 A   ..Non-turbo machine
  198 A   .Turbo machine
  202     PROJECTING BLADE AXIS OFFSET FROM ROTATION AXIS
  203     UNSYMMETRICAL IMPELLER OR DISSIMILAR WORKING MEMBERS
  204 R   SPECIFIC WORKING MEMBER MOUNT
  205     .Adjustable
  206     ..Spring biased detent
  207     ..Blade releasably clamped
  208     ...Split impeller hub
  209     ..Thimble or sleeve fixed on impeller blade
  210 R   .Distally supported on radial arm
  211     ..Axially extending blade
  210 A   ..Turbo machine
  212 R   .Interlocking blades
  212 A   ..Turbo machine
  213 R   .Welded, cemented or fused
  213 A   ..Non-turbo machine
  214 R   .Blade held between separable surfaces
  214 A   ..Turbo machine
  215     .Blade received by continuous circumferential channel
  216     ..Radially spaced ribs or grooves
  217     ..Divided blade root
  218     ..Having circumferentially extending binder
  219 R   .Blade received in well or slot
  220 R   ..Having blade locking means
  221     ...Resilient or deformable
  220 A   ...Non-turbo machine
  219 A   ..Non-turbo machine
  222     .Blade straddles carrier
  204 A   .Turbo machine
  223 R   SPECIFIC BLADE STRUCTURE (E.G., SHAPE, MATERIAL, ETC.)
  224     .Having wear liner, sheathing or insert
  225     .Having spanwise compression means
  226     .Formed with main spar
  227 R   .Openwork (e.g., lattice, looped, etc.)
  227 A   ..Propeller and non-mixers
  228     .Tined or irregular periphery
  229 R   .Laminated, embedded member or encased materiall
  230     ..Wire, fiber, strand or fabric
  229 A   ..Turbo machine
  231 R   .Apertured or permeable
  231 A   ..Mixers or agitators
  231 B   ..Slotted blade
  232     .Hollow
  233     ..Having brace means bridging cavity
  234     .Integrally shaped or blended into hub
  235     .Irregular, flanged or channel forming blade surface
  236 R   ..Ribbed or grooved
  236 A   ...Concentric or circular ribs
  237     ..Angular or offset
  238     .Cantilever blade
  239     .Blade cuff or shank construction
  240     .Flexible
  241 R   .Coating, specific composition or characteristic
  241 A   ..Plastic or synthetic material
  241 B   ..Ceramic material
  242     .Reverse curve surface
  243     .Concave surface
  223 A   .Turbo machine
  223 B   .Radial flow devices
  244 R   SUPPORT MOUNTING, CARRIER OR FAIRING STRUCTURE
  245 R   .Spinner or fairwater cap
  245 A   ..Water or marine propellers
  246     .Selectively adjustable impeller mount
  244 A   .Turbo machine
  244 B   .Water or marine propellers
  247 R   PROTECTIVE SCREEN OR GUARD
  247 A   .Water or marine propellers
  248     MISCELLANEOUS (E.G., BLADE ROOT OR ROOT BLOCK, ETC.)
  *       ******************************
  *       CROSS-REFERENCE ART COLLECTIONS BASED ON USE OR CHARACTERIC
  *       ******************************
  500     VIBRATION DAMPING FEATURES
  501     FLY BRUSH TYPE IMPELLER
  *       ******************************
  *       DIGESTS
  *       ******************************
  DIG 1   Stalker
  DIG 2   Formulas of curves, etc.
  DIG 3   Sheet metal
  DIG 4   Fluid current motor and generator
  DIG 5   Variable camber or chord length
  DIG 6   Supports for natural fluid current motors
  DIG 7   Inlet and outlet
  DIG 8   Stack or chimney with fluid motor
  DIG 9   Savonius