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| Class 310 | ELECTRICAL GENERATOR OR MOTOR STRUCTURE |
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![[List of Pre Grant Publications for class 310 subclass 1]](../as.gif) | ![[List of Patents for class 310 subclass 1]](../ps.gif) | 1 | EDUCATIONAL OR CONSTRUCTION UNITS OR KITS |
| | 300 | NON-DYNAMOELECTRIC |
| | 301 |  Nuclear reaction |
| | 302 |  Contact potential difference |
| | 303 | P-N semiconductor |
| | 304 | Secondary electron emission |
| | 305 | Direct charge particle emission |
| | 306 | Thermal or pyromagnetic |
| | 308 | Charge accumulating |
| | 311 | Piezoelectric elements and devices |
| | 312 | Adding or subtracting mass |
| | 313R | Surface acoustic wave devices |
| | 314 | Electrical systems |
| | 315 |  Temperature compensation circuits |
| | 316.01 | Input circuit for simultaneous electrical and mechanical output from piezoelectric element |
| | 317 | Input circuit for mechanical output from piezoelectric element |
| | 318 | Input circuit for electrical output from piezoelectric element |
| | 319 | Electrical output circuit |
| | 320 | Piezoelectric slab having different resonant frequencies at different areas |
| | 321 | Combined with resonant structure |
| | 322 | Acoustic wave type generator or receiver |
| | 323.01 | Direct mechanical coupling |
| | 323.02 |  Motor producing continual motion |
| | 323.03 |  Traveling wave motor |
| | 323.12 | Langevin or pencil type motor |
| | 323.16 | Eliptical motion at fixed point (i.e., walking) or Ratchet and Pawl motor |
| | 323.17 | Positions an object |
| | 323.18 | Device performs work on an object (e.g., welding, cutting) |
| | 323.19 | Horn or transmission line |
| | 323.21 | Detector (e.g., sensor) |
| | 324 | Diaphragm |
| | 325 | Sandwich or Langevin type |
| | 326 | Combined with damping structure |
| | 328 | With mechanical energy coupling means |
| | 329 | Including inertia type operator |
| | 330 | Bending type |
| | 333 | Shear or torsional type |
| | 334 | Acoustic wave type generator or receiver |
| | 338 | Force or pressure measuring type |
| | 339 | Voltage, spark or current generator |
| | 340 | Encapsulated or coated |
| | 341 | With temperature modifier and/or gas or vapor atmosphere control |
| | 345 | Supported by elastic material |
| | 346 | With temperature compensating structure |
| | 348 | With mounting or support means |
| | 357 | Orientation of piezoelectric polarization |
| | 360 | Rotation of crystal axis (e.g., cut angle) |
| | 363 | Electrode materials |
| | 365 | Electrode arrangement |
| | 367 | Piezoelectric element shape |
| | 10 | DYNAMOELECTRIC |
| | 11 | Conducting fluid |
| | 15 | Reciprocating |
| | 16 | With cooling or temperature modification |
| | 17 | With other elements |
| | 25 | Reed type |
| | 26 | Magnetostrictive |
| | 27 | Fixed and movable wound elements |
| | 28 | Direct-connected |
| | 31 | Self-actuated interrupter |
| | 36 | Oscillating |
| | 12.01 | Linear |
| | 12.02 | Having structure to facilitate assembly |
| | 12.03 | Micromachine (e.g., MEMS device, nanotechnology) |
| | 12.04 | Specific use device |
| | 12.05 | X-Y positioner |
| | 12.07 | Projector (e.g., rail gun) |
| | 12.08 | Disk drive head motor |
| | 12.09 | Rail vehicle (e.g., train, trolley) |
| | 12.11 | Conveyor or elevator motor |
| | 12.12 | Generator |
| | 12.13 | Plural dynamoelectric machines (e.g., motors, generators) |
| | 12.14 | Motor having both linear and rotary movement |
| | 12.15 | Plural stators or movable elements |
| | 13 | Fixed and movable wound element type |
| | 14 | Solenoid and core type |
| | 12.16 | Voice coil type |
| | 12.17 | Stepping or linear pulse type |
| | 12.18 | Synchronous type (e.g., variable reluctance) |
| | 12.19 | Having structure to facilitate control (e.g., position detector) |
| | 12.21 | Coil structure |
| | 12.24 | Magnet or pole structure |
| | 12.27 | Mechanical element |
| | 40R | Rotary |
| | 40.5 | Self-nutating or moving (e.g., oscillating fan, etc.) |
| | 41 | With mechanical starters |
| | 43 | Molded plastic |
| | 44 | Powdered metal |
| | 45 | Impregnated or coated |
| | 46 | Magnetic motors |
| | 47 | Portable or hand tool (e.g., dry shavers) |
| | 48 | With other elements |
| | 49.01 | Stepping |
| | 49.02 | Having a coil axially concentric to rotor axis (e.g., toroid coil) |
| | 49.03 | With bias magnet to position rotor (e.g., parking magnet, auxiliary flux) |
| | 49.05 | Axially adjacent to rotor end |
| | 49.08 | Having poles extending to opposite radial sides of rotor |
| | 49.09 | Having poles extending to opposite axial ends of rotor |
| | 49.11 | Having particular flux plate or yoke |
| | 49.13 | Having coil bobbin |
| | 49.15 | Having interfitting poles |
| | 49.18 | With rotary to linear conversion |
| | 49.19 | Having plural axially concentric coils |
| | 49.21 | Having a single axially concentric coil |
| | 49.22 | Axially thin type (e.g., disk-shaped motor, planer) |
| | 49.32 | Permanent magnet rotor with axially directed flux path |
| | 49.33 | Having stepping function related to a particular stator winding arrangement |
| | 49.34 | Having particular stator pole feature |
| | 49.37 | Having particular stator-pole to rotor-pole relationship |
| | 49.38 | Having plural rotor cores of different lengths |
| | 49.39 | Plural rotor sections (e.g., segmented rotor) |
| | 49.42 | Having dual axial air gaps |
| | 49.43 | Reluctance type |
| | 49.44 | Having a particular stator pole to rotor pole relationship |
| | 49.45 | Having a stepping function related to a particular stator winding arrangement |
| | 49.46 | Having stator with winding and permanent magnet |
| | 49.47 | Gearing defines stepping effect |
| | 49.51 | Plural stators define stepping effect |
| | 49.52 | Commutator defines stepping effect |
| | 49.53 | Permanent magnet defines stepping effect |
| | 49.54 | Windings define stepping effect |
| | 49.55 | Start or stop locating feature (e.g., parking magnet, detent) |
| | 50 | Portable or hand tool |
| | 51 | Vibration or noise suppression |
| | 52 | Cooling or fluid contact |
| | 53 | With control means |
| | 54 | Liquid coolant |
| | 55 | Nonatmospheric gas |
| | 56 | With gas purification or treating |
| | 57 | Intermediate confined coolant |
| | 58 | Circulation |
| | 66 | With other elements |
| | 67R | Inbuilt or incorporated unit |
| | 68R | Electric circuit elements |
| | 69 | Shaft-driven switch (e.g., blasting generators) |
| | 71 | Connectors, terminals or lead-ins |
| | 72 | Impedance devices |
| | 73 | Illuminating devices |
| | 68A | Manually operable (e.g., switches, rheostats, etc.) |
| | 68B | Condition responsive (e.g., position, torque, etc.) |
| | 68C | Temperature, current-responsive, i.e., protectors |
| | 68D | Conversion elements, (e.g., transformers, rectifiers, etc.) |
| | 68E | Motion responsive (e.g., centrifugal switches) |
| | 74 | Inertia or fly-wheel device |
| | 75R | Drive mechanism |
| | 76 | Brake and clutch |
| | 77 | Brake |
| | 78 | Clutch |
| | 79 | Shaft and armature timing or phasing connection |
| | 80 | Motion conversion |
| | 75A | Spring or gravity drive |
| | 75B | Hand- or foot-operated |
| | 75C | Rim drive (e.g., bicycle generator drive by wheel, rim, or tire) |
| | 75D | Flexible shaft or coupling and hollow shaft drive |
| | 85 | Mechanical shields or protectors |
| | 86 | Shield in air gap |
| | 87 | Submersible |
| | 88 | Dirt, moisture or explosion proof |
| | 89 | Housings, windows or covers |
| | 90 | Bearing or air-gap adjustment or bearing lubrication |
| | 91 | Supports |
| | 92 | Torque-transmitting clutches or brakes |
| | 93 | Brake type |
| | 94 | Automatic control |
| | 96 | With other drive mechanism |
| | 101 | Plural units |
| | 102R | Generator-motor type |
| | 103 | Magnetic field type |
| | 111 | Generated wave-form modification |
| | 112 | Plural units, structurally united |
| | 114 | Plural rotary elements |
| | 115 | Field and armature both rotate |
| | 124 | Plural short-circuited rotary elements |
| | 126 | Plural armatures in common field |
| | 127 | Plural collector-type machines |
| | 128 | Commutator and slip-ring type |
| | 129 | Synchronous or rotary converter |
| | 131 | Different armature circuits |
| | 133 | Common armature winding |
| | 135 | Commutator in field circuit |
| | 136 | Plural commutator type |
| | 143 | Plural slip-ring sets |
| | 148 | Plural sets of brushes |
| | 152 | Permanent magnet machines |
| | 153 | Inbuilt with flywheel (magneto) |
| | 154.01 | Permanent magnet stator |
| | 154.02 | Combined with generating coil |
| | 154.03 | Means for securing magnet |
| | 154.04 | Cantilevered |
| | 154.05 | Axial |
| | 154.07 | Adhesive |
| | 154.08 | Mounted to magnet yoke |
| | 154.11 | Embedded in core or pole |
| | 154.12 | Cylindrical sleeve holder |
| | 154.13 | Holder with pocket for magnet |
| | 154.14 | Spring clip |
| | 154.16 | Axially pressing on magnets |
| | 154.17 | Wedging between |
| | 154.21 | Permanent magnet characterized by the shape of the magnet |
| | 154.22 | With specific dimension |
| | 154.23 | Horseshoe |
| | 154.24 | Bar, square or rectangular |
| | 154.25 | Disk, ring, or cylinder |
| | 154.26 | With means to prevent or reduce demagnetization (i.e., auxiliary magnetic poles) |
| | 154.28 | Specific magnetization |
| | 154.31 | Single pole pair |
| | 154.32 | Permanent magnet extends along an axis |
| | 154.33 | Plural rotors |
| | 154.34 | With adjustable magnetic structure |
| | 154.35 | With specific pole pieces or pole shoes |
| | 154.36 |  Circumferentially spaced poles and magnets |
| | 154.37 | Poles extending axially from magnets |
| | 154.38 | Pole shoe shape |
| | 154.39 | Different size |
| | 154.41 | Laminated |
| | 154.42 | Induced flux return pole |
| | 154.43 | Additional permanent magnets |
| | 154.44 | Additional shield or coating (non-magnetic) |
| | 154.45 | Multiple pole pairs |
| | 154.46 | With specific pole shoe pieces |
| | 154.47 | Magnet extending between two poles |
| | 154.48 | Induce flux return pole |
| | 154.49 | Adjustable |
| | 155 | Inductor type |
| | 156.01 | Permanent magnet rotor |
| | 156.02 | Transverse flux |
| | 156.03 | With a hysteresis ring |
| | 156.04 | Separate portion of the rotor magnet used as a thrust bearing |
| | 156.05 | Separate portion of the rotor magnet used as a magnet for sensing (i.e., for position or frequency) |
| | 156.06 | Combined with flux for sensing |
| | 156.07 | Additional flux directing magnets |
| | 156.08 | Mounting (such as on a surface of a shaft) |
| | 156.09 | Keyed to shaft |
| | 156.11 | Magnets in shaft |
| | 156.12 | Mounted on a sleeve/hub |
| | 156.13 | Keyed to a sleeve/hub |
| | 156.14 | Knurl between the sleeve/hub and a shaft |
| | 156.15 | Induced flux pole on sleeve/hub |
| | 156.16 | Spring mounted |
| | 156.18 | With a threaded fastener |
| | 156.19 | With a wedge |
| | 156.21 | With an adhesive |
| | 156.22 | With an axial end clamp |
| | 156.23 | With casting material around the magnet |
| | 156.24 | Including a spring mount to adjust a flux |
| | 156.25 | Axially offset and radially magnetized magnets |
| | 156.26 | Mounted on a bell shape hub |
| | 156.27 | Including thermal compensation |
| | 156.28 | Sleeve covering magnet face |
| | 156.29 | Sleeve parallel to magnetic face |
| | 156.31 | Banding around magnet |
| | 156.32 | Including an axial air gap |
| | 156.33 | With pole shoes |
| | 156.34 | With a stator between a rotating flux return plate and rotor magnet |
| | 156.35 | With single rotor magnet and plural stators |
| | 156.36 | With plural sets of rotating magnets |
| | 156.38 | Specific shape |
| | 156.48 | Pole shoes/pole pieces |
| | 156.49 | Radial flux path and radially positioned pole shoes |
| | 156.51 | Laminated pole shoes with multiple pole pairs |
| | 156.52 | Laminated pole shoes with single pole pair |
| | 156.53 | Embedded in a core |
| | 156.54 | Induced flux return poles |
| | 156.55 | Circumferential flux path and circumferential pole shoes |
| | 156.56 | Embedded |
| | 156.57 | With slots or holes to guide flux |
| | 156.58 | Different size pole shoes |
| | 156.59 | Pole shoes fixed to hub or shaft |
| | 156.61 | Pole shoes fixed with end plates |
| | 156.62 | Axially magnetized with poles shoes at one end |
| | 156.64 | Axially magnetized with pole shoes at both ends |
| | 156.66 | Claw poles/interfitting poles/lundel |
| | 156.67 | Laminated pole shoes |
| | 156.68 | Poles formed by magnet |
| | 156.69 | Plural sets of claw poles |
| | 156.71 | Claw poles extend in the same axial direction |
| | 156.72 | Additional support for magnet |
| | 156.73 | Additional support for claw pole tips |
| | 156.74 | Damping features |
| | 156.78 | Squirrel cage |
| | 157 | Vertically disposed |
| | 158 | Universal (A.C. or D.C.) |
| | 159 | A.C. |
| | 160 | Frequency converters |
| | 161 | Phase-shifter type |
| | 162 | Synchronous |
| | 166 | Induction |
| | 167 | With repulsion-starting |
| | 168 | Inductor-type generators (variable reluctance) |
| | 171 | Induction generators |
| | 172 | Shifting field (e.g., shading pole) |
| | 173 | Commutated |
| | 177 | D.C. |
| | 179 | Windings and core structure |
| | 180 | Field or excitation windings or structure |
| | 181 | Combined permanent and electromagnet |
| | 182 | With short-circuited winding or conductor |
| | 184 | Plural field windings |
| | 185 | Plural sets of poles |
| | 186 | Interpole, compensating or neutralizing poles |
| | 187 | Slotted or divided pole |
| | 188 | Differentially related |
| | 189 | Variable length or tapped winding |
| | 190 | Magnetic shunts for shifting field flux |
| | 191 | Adjustable magnetic structure |
| | 192 | Nonmagnetic inserts or air gaps |
| | 193 | Nonuniform core cross section |
| | 194 | Coil supports and spools |
| | 195 | Armature or primary |
| | 196 | Corona-prevention |
| | 197 | With short-circuited winding or conductor |
| | 198 | Plural windings |
| | 200 | Variable length or tapped windings |
| | 201 | Bar windings |
| | 202 | Open windings |
| | 203 | Closed windings |
| | 208 | Coils |
| | 209 | Adjustable magnetic structure |
| | 210 | Secondary windings or conductors |
| | 213 | Antiparasitic conductors (imbricated) |
| | 214 | Coil retainers or slot closers |
| | 215 | Slot liners |
| | 216.001 | Core |
| | 216.002 | Pole-less core (i.e., slotless, toothless) |
| | 216.003 | Wire core |
| | 216.004 | Laminated core |
| | 216.005 | Having winding lead accommodation structure |
| | 216.006 | Having particular grain orientation |
| | 216.007 | Plural laminated segments radially united |
| | 216.008 | Plural axially laminated segments circumferentially united |
| | 216.011 | Circumferentially offset laminations |
| | 216.012 | Offset pole teeth |
| | 216.013 | Having axially extended spirally-laminated core |
| | 216.014 | Offset cooling fins |
| | 216.015 | Plural diverse elements |
