Subclasses list- 1 EDUCATIONAL OR CONSTRUCTION UNITS OR KITS
Patents: 15 Patent Applications: 6 - 300 NON-DYNAMOELECTRIC
Patents: 76 Patent Applications: 220 - 301 Nuclear reaction
Patents: 17 Patent Applications: 3 - 302 Contact potential difference
Patents: 13 Patent Applications: 0 - 303 P-N semiconductor
Patents: 47 Patent Applications: 5 - 304 Secondary electron emission
Patents: 17 Patent Applications: 0 - 305 Direct charge particle emission
Patents: 20 Patent Applications: 7 - 306 Thermal or pyromagnetic
Patents: 288 Patent Applications: 81 - 307 With heat actuated bimetal element
Patents: 166 Patent Applications: 24 - 308 Charge accumulating
Patents: 85 Patent Applications: 12 - 309 Electrostatic
Patents: 838 Patent Applications: 219 - 310 Friction
Patents: 26 Patent Applications: 3 - 311 Piezoelectric elements and devices
Patents: 625 Patent Applications: 309 - 312 Adding or subtracting mass
Patents: 305 Patent Applications: 34 - 313R Surface acoustic wave devices
Patents: 1179 Patent Applications: 72 - 313A Orientation of piezoelectric material
Patents: 456 Patent Applications: 58 - 313B Interdigitated electrodes
Patents: 802 Patent Applications: 106 - 313C Envelope or apodized
Patents: 162 Patent Applications: 39 - 313D Grating or reflector in wave path
Patents: 623 Patent Applications: 43 - 314 Electrical systems
Patents: 79 Patent Applications: 54 - 315 Temperature compensation circuits
Patents: 129 Patent Applications: 13 - 316.01 Input circuit for simultaneous electrical and mechanical output from piezoelectric element
Patents: 653 Patent Applications: 40 - 316.02 Traveling wave motor
Patents: 209 Patent Applications: 9 - 316.03 Charging and discharging
Patents: 130 Patent Applications: 16 - 317 Input circuit for mechanical output from piezoelectric element
Patents: 868 Patent Applications: 261 - 318 Input circuit for electrical output from piezoelectric element
Patents: 262 Patent Applications: 63 - 319 Electrical output circuit
Patents: 336 Patent Applications: 98 - 320 Piezoelectric slab having different resonant frequencies at different areas
Patents: 361 Patent Applications: 39 - 321 Combined with resonant structure
Patents: 481 Patent Applications: 49 - 322 Acoustic wave type generator or receiver
Patents: 418 Patent Applications: 76 - 323.01 Direct mechanical coupling
Patents: 229 Patent Applications: 38 - 323.02 Motor producing continual motion
Patents: 342 Patent Applications: 155 - 323.03 Traveling wave motor
Patents: 113 Patent Applications: 11 - 323.04 Stator
Patents: 87 Patent Applications: 8 - 323.05 Support
Patents: 40 Patent Applications: 4 - 323.06 Piezoelectric element or electrode
Patents: 102 Patent Applications: 17 - 323.07 Oval track
Patents: 22 Patent Applications: 1 - 323.08 Armature
Patents: 40 Patent Applications: 2 - 323.09 Pressing means detail
Patents: 65 Patent Applications: 8 - 323.11 Specific material or composition
Patents: 55 Patent Applications: 3 - 323.12 Langevin or pencil type motor
Patents: 97 Patent Applications: 2 - 323.13 Output member detail
Patents: 43 Patent Applications: 1 - 323.14 Roller or ball element
Patents: 19 Patent Applications: 0 - 323.15 Material or material property
Patents: 22 Patent Applications: 0 - 323.16 Eliptical motion at fixed point (i.e., walking) or Ratchet and Pawl motor
Patents: 144 Patent Applications: 80 - 323.17 Positions an object
Patents: 151 Patent Applications: 10 - 323.18 Device performs work on an object (e.g., welding, cutting)
Patents: 62 Patent Applications: 4 - 323.19 Horn or transmission line
Patents: 82 Patent Applications: 2 - 323.21 Detector (e.g., sensor)
Patents: 127 Patent Applications: 24 - 324 Diaphragm
Patents: 683 Patent Applications: 77 - 325 Sandwich or Langevin type
Patents: 208 Patent Applications: 14 - 326 Combined with damping structure
Patents: 304 Patent Applications: 30 - 327 On back of piezoelectric element
Patents: 203 Patent Applications: 23 - 328 With mechanical energy coupling means
Patents: 2133 Patent Applications: 391 - 329 Including inertia type operator
Patents: 315 Patent Applications: 33 - 330 Bending type
Patents: 617 Patent Applications: 75 - 331 Plural elements
Patents: 433 Patent Applications: 40 - 332 Multimorph
Patents: 366 Patent Applications: 30 - 333 Shear or torsional type
Patents: 207 Patent Applications: 25 - 334 Acoustic wave type generator or receiver
Patents: 1076 Patent Applications: 198 - 335 With lens or reflector
Patents: 294 Patent Applications: 28 - 336 Nondestructive testing type
Patents: 198 Patent Applications: 33 - 337 Underwater type
Patents: 324 Patent Applications: 4 - 338 Force or pressure measuring type
Patents: 426 Patent Applications: 88 - 339 Voltage, spark or current generator
Patents: 516 Patent Applications: 246 - 340 Encapsulated or coated
Patents: 288 Patent Applications: 78 - 341 With temperature modifier and/or gas or vapor atmosphere control
Patents: 53 Patent Applications: 17 - 342 For plural piezoelectric elements
Patents: 28 Patent Applications: 2 - 343 With heating element
Patents: 48 Patent Applications: 5 - 344 Sealed unit
Patents: 362 Patent Applications: 131 - 345 Supported by elastic material
Patents: 146 Patent Applications: 11 - 346 With temperature compensating structure
Patents: 275 Patent Applications: 37 - 347 Compensated air gap
Patents: 4 Patent Applications: 0 - 348 With mounting or support means
Patents: 784 Patent Applications: 225 - 349 Air gap
Patents: 57 Patent Applications: 3 - 350 Adjustable
Patents: 6 Patent Applications: 0 - 351 Suspended by thin member
Patents: 71 Patent Applications: 11 - 352 Point contact on major surfce only
Patents: 48 Patent Applications: 2 - 353 Contact at edges only
Patents: 98 Patent Applications: 8 - 354 Clamped
Patents: 67 Patent Applications: 12 - 355 Spring bias
Patents: 47 Patent Applications: 9 - 356 90 degrees to major surface and margin clamped only
Patents: 12 Patent Applications: 1 - 357 Orientation of piezoelectric polarization
Patents: 176 Patent Applications: 49 - 358 Ceramic composition (e.g., barium titanate)
Patents: 552 Patent Applications: 174 - 359 More than one poling direction (e.g., Rosen transformer)
Patents: 280 Patent Applications: 24 - 360 Rotation of crystal axis (e.g., cut angle)
Patents: 152 Patent Applications: 23 - 361 Quartz
Patents: 184 Patent Applications: 20 - 362 Rochelle salt
Patents: 2 Patent Applications: 1 - 363 Electrode materials
Patents: 283 Patent Applications: 107 - 364 Multilayer
Patents: 288 Patent Applications: 81 - 365 Electrode arrangement
Patents: 416 Patent Applications: 190 - 366 More than two
Patents: 915 Patent Applications: 187 - 367 Piezoelectric element shape
Patents: 325 Patent Applications: 118 - 368 Rectangular plate
Patents: 182 Patent Applications: 8 - 369 Circular disc, ring, or cylinder
Patents: 350 Patent Applications: 22 - 370 "U" or "tuning fork" shape
Patents: 287 Patent Applications: 119 - 371 Sphere or hemisphere
Patents: 36 Patent Applications: 1 - 10 DYNAMOELECTRIC
Patents: 140 Patent Applications: 68 - 11 Conducting fluid
Patents: 232 Patent Applications: 27 - 12 Linear
Patents: 1746 Patent Applications: 509 - 13 Fixed and movable wound elements
Patents: 526 Patent Applications: 11 - 14 Solenoid and core type
Patents: 306 Patent Applications: 77 - 15 Reciprocating
Patents: 494 Patent Applications: 143 - 16 With cooling or temperature modification
Patents: 44 Patent Applications: 10 - 17 With other elements
Patents: 178 Patent Applications: 26 - 19 Speed control or time delay
Patents: 17 Patent Applications: 2 - 20 Motion-converting mechanism
Patents: 117 Patent Applications: 41 - 21 Pivoted or flat-spring armature
Patents: 32 Patent Applications: 2 - 22 Plural armatures
Patents: 33 Patent Applications: 3 - 23 Solenoid and core type
Patents: 92 Patent Applications: 16 - 24 Plural cores
Patents: 70 Patent Applications: 16 - 25 Reed type
Patents: 47 Patent Applications: 66 - 26 Magnetostrictive
Patents: 272 Patent Applications: 40 - 27 Fixed and movable wound elements
Patents: 135 Patent Applications: 4 - 28 Direct-connected
Patents: 13 Patent Applications: 34 - 29 Pivoted or flat-spring armature
Patents: 81 Patent Applications: 12 - 30 Solenoid and core
Patents: 159 Patent Applications: 31 - 31 Self-actuated interrupter
Patents: 6 Patent Applications: 2 - 32 Pivoted or flat-spring armature
Patents: 16 Patent Applications: 1 - 33 Plural armatures
Patents: 9 Patent Applications: 0 - 34 Solenoid and core
Patents: 38 Patent Applications: 1 - 35 Successively energized solenoid coils
Patents: 37 Patent Applications: 1 - 36 Oscillating
Patents: 356 Patent Applications: 70 - 37 With motion-converting mechanism
Patents: 64 Patent Applications: 21 - 38 Direct-connected
Patents: 36 Patent Applications: 38 - 39 With interrupter
Patents: 21 Patent Applications: 0 - 40R Rotary
Patents: 80 Patent Applications: 15 - 40.5 Self-nutating or moving (e.g., oscillating fan, etc.)
Patents: 9 Patent Applications: 3 - 41 With mechanical starters
Patents: 64 Patent Applications: 2 - 42 With assembling, metal casting or machining feature
Patents: 1233 Patent Applications: 61 - 43 Molded plastic
Patents: 836 Patent Applications: 251 - 44 Powdered metal
Patents: 128 Patent Applications: 82 - 45 Impregnated or coated
Patents: 453 Patent Applications: 46 - 46 Magnetic motors
Patents: 192 Patent Applications: 94 - 47 Portable or hand tool (e.g., dry shavers)
Patents: 112 Patent Applications: 4 - 48 With other elements
Patents: 13 Patent Applications: 20 - 49R Step-by-step
Patents: 872 Patent Applications: 50 - 49A Claw-tooth and printed circuit components
Patents: 29 Patent Applications: 11 - 50 Portable or hand tool
Patents: 397 Patent Applications: 135 - 51 Vibration or noise suppression
Patents: 865 Patent Applications: 180 - 52 Cooling or fluid contact
Patents: 688 Patent Applications: 200 - 53 With control means
Patents: 117 Patent Applications: 29 - 54 Liquid coolant
Patents: 608 Patent Applications: 280 - 55 Nonatmospheric gas
Patents: 76 Patent Applications: 16 - 56 With gas purification or treating
Patents: 43 Patent Applications: 8 - 57 Intermediate confined coolant
Patents: 98 Patent Applications: 6 - 58 Circulation
Patents: 666 Patent Applications: 208 - 59 Plural units or plural paths
Patents: 440 Patent Applications: 93 - 60R Self-forced
Patents: 124 Patent Applications: 24 - 61 Rotor passage
Patents: 366 Patent Applications: 79 - 62 Suction pump or fan
Patents: 419 Patent Applications: 116 - 63 Pressure pump or fan
Patents: 281 Patent Applications: 58 - 60A Hollow passages
Patents: 150 Patent Applications: 28 - 64 Heat-exchange structure
Patents: 635 Patent Applications: 175 - 65 Spacers (e.g., laminae, coils, etc.)
Patents: 111 Patent Applications: 7 - 66 With other elements
Patents: 90 Patent Applications: 40 - 67R Inbuilt or incorporated unit
Patents: 1275 Patent Applications: 113 - 67A Bicycle-hub generators
Patents: 89 Patent Applications: 36 - 68R Electric circuit elements
Patents: 879 Patent Applications: 87 - 69 Shaft-driven switch (e.g., blasting generators)
Patents: 14 Patent Applications: 0 - 70R Distributor or timer (e.g., ignition magnetos)
Patents: 52 Patent Applications: 0 - 70A Ignition systems
Patents: 43 Patent Applications: 0 - 71 Connectors, terminals or lead-ins
Patents: 1623 Patent Applications: 598 - 72 Impedance devices
Patents: 120 Patent Applications: 32 - 73 Illuminating devices
Patents: 25 Patent Applications: 10 - 68A Manually operable (e.g., switches, rheostats, etc.)
Patents: 73 Patent Applications: 10 - 68B Condition responsive (e.g., position, torque, etc.)
Patents: 834 Patent Applications: 315 - 68C Temperature, current-responsive, i.e., protectors
Patents: 276 Patent Applications: 50 - 68D Conversion elements, (e.g., transformers, rectifiers, etc.)
Patents: 526 Patent Applications: 213 - 68E Motion responsive (e.g., centrifugal switches)
Patents: 105 Patent Applications: 4 - 74 Inertia or fly-wheel device
Patents: 317 Patent Applications: 43 - 75R Drive mechanism
Patents: 307 Patent Applications: 61 - 76 Brake and clutch
Patents: 43 Patent Applications: 2 - 77 Brake
Patents: 227 Patent Applications: 62 - 78 Clutch
Patents: 158 Patent Applications: 39 - 79 Shaft and armature timing or phasing connection
Patents: 9 Patent Applications: 4 - 80 Motion conversion
Patents: 335 Patent Applications: 107 - 81 Unbalanced weight (e.g., vibrators)
Patents: 325 Patent Applications: 104 - 82 Swash plate
Patents: 73 Patent Applications: 3 - 83 Gearing
Patents: 534 Patent Applications: 269 - 84 Impulse coupling
Patents: 15 Patent Applications: 2 - 75A Spring or gravity drive
Patents: 27 Patent Applications: 6 - 75B Hand- or foot-operated
Patents: 29 Patent Applications: 7 - 75C Rim drive (e.g., bicycle generator drive by wheel, rim, or tire)
Patents: 74 Patent Applications: 28 - 75D Flexible shaft or coupling and hollow shaft drive
Patents: 112 Patent Applications: 11 - 85 Mechanical shields or protectors
Patents: 128 Patent Applications: 36 - 86 Shield in air gap
Patents: 123 Patent Applications: 43 - 87 Submersible
Patents: 324 Patent Applications: 70 - 88 Dirt, moisture or explosion proof
Patents: 308 Patent Applications: 85 - 89 Housings, windows or covers
Patents: 1600 Patent Applications: 366 - 90 Bearing or air-gap adjustment or bearing lubrication
Patents: 1720 Patent Applications: 588 - 90.5 Magnetic bearing
Patents: 1254 Patent Applications: 295 - 91 Supports
Patents: 988 Patent Applications: 167 - 92 Torque-transmitting clutches or brakes
Patents: 113 Patent Applications: 8 - 93 Brake type
Patents: 164 Patent Applications: 22 - 94 Automatic control
Patents: 18 Patent Applications: 2 - 95 By speed
Patents: 23 Patent Applications: 2 - 96 With other drive mechanism
Patents: 26 Patent Applications: 4 - 97 Output bias or resistance device
Patents: 6 Patent Applications: 0 - 98 Drive motor
Patents: 34 Patent Applications: 5 - 99 Gearing
Patents: 59 Patent Applications: 9 - 100 Mechanical clutch
Patents: 26 Patent Applications: 5 - 101 Plural units
Patents: 9 Patent Applications: 0 - 102R Generator-motor type
Patents: 33 Patent Applications: 2 - 102A Homopolar clutches
Patents: 6 Patent Applications: 1 - 103 Magnetic field type
Patents: 293 Patent Applications: 100 - 104 With air-gap shield
Patents: 99 Patent Applications: 15 - 105 Induced or eddy current type
Patents: 204 Patent Applications: 10 - 106 Magnetic reluctance feature
Patents: 21 Patent Applications: 5 - 107 With collection means for induced current
Patents: 1 Patent Applications: 1 - 108 Delivery to external device
Patents: 6 Patent Applications: 0 - 109 Electric motor
Patents: 3 Patent Applications: 0 - 110 Impedance
Patents: 2 Patent Applications: 0 - 111 Generated wave-form modification
Patents: 48 Patent Applications: 2 - 112 Plural units, structurally united
Patents: 559 Patent Applications: 116 - 113 Motor-generator sets
Patents: 215 Patent Applications: 70 - 114 Plural rotary elements
Patents: 540 Patent Applications: 161 - 115 Field and armature both rotate
Patents: 52 Patent Applications: 10 - 116 Limited movement
Patents: 55 Patent Applications: 0 - 117 Mechanical bias
Patents: 9 Patent Applications: 0 - 118 With interconnecting drive mechanism
Patents: 32 Patent Applications: 1 - 119 Fluid-drive mechanism
Patents: 12 Patent Applications: 1 - 120 Friction-drive mechanism
Patents: 5 Patent Applications: 9 - 121 Mechanically controlled element
Patents: 8 Patent Applications: 2 - 122 By additional dynamoelectric machine
Patents: 5 Patent Applications: 0 - 123 Friction brake
Patents: 0 Patent Applications: 0 - 124 Plural short-circuited rotary elements
Patents: 8 Patent Applications: 2 - 125 Squirrel cage type
Patents: 21 Patent Applications: 2 - 126 Plural armatures in common field
Patents: 25 Patent Applications: 7 - 127 Plural collector-type machines
Patents: 16 Patent Applications: 1 - 128 Commutator and slip-ring type
Patents: 26 Patent Applications: 2 - 129 Synchronous or rotary converter
Patents: 10 Patent Applications: 0 - 130 For plural wire D.C. system
Patents: 3 Patent Applications: 0 - 131 Different armature circuits
Patents: 3 Patent Applications: 0 - 132 Polyphase armature winding
Patents: 1 Patent Applications: 0 - 133 Common armature winding
Patents: 2 Patent Applications: 0 - 134 With plural field windings
Patents: 2 Patent Applications: 0 - 135 Commutator in field circuit
Patents: 9 Patent Applications: 0 - 136 Plural commutator type
Patents: 20 Patent Applications: 2 - 137 Double current D. C. machines
Patents: 0 Patent Applications: 0 - 138 Dynamotor type
Patents: 12 Patent Applications: 0 - 139 Hetero-axial excitation
Patents: 1 Patent Applications: 0 - 140 Plural armature windings
Patents: 4 Patent Applications: 1 - 141 Plural field windings
Patents: 1 Patent Applications: 0 - 142 Plural field windings
Patents: 1 Patent Applications: 0 - 143 Plural slip-ring sets
Patents: 10 Patent Applications: 2 - 144 Plural armature windings
Patents: 3 Patent Applications: 0 - 145 Plural sets of poles
Patents: 1 Patent Applications: 0 - 146 Polyphase windings
Patents: 0 Patent Applications: 0 - 147 Slip rings in field circuit
Patents: 3 Patent Applications: 0 - 148 Plural sets of brushes
Patents: 35 Patent Applications: 5 - 149 Plural field windings
Patents: 13 Patent Applications: 1 - 150 Polyphase arrangement
Patents: 2 Patent Applications: 0 - 151 Short circuiting conductor between brushes
Patents: 10 Patent Applications: 0 - 152 Permanent magnet machines
Patents: 187 Patent Applications: 94 - 153 Inbuilt with flywheel (magneto)
Patents: 153 Patent Applications: 17 - 154.01 Permanent magnet stator
Patents: 55 Patent Applications: 23 - 154.02 Combined with generating coil
Patents: 29 Patent Applications: 10 - 154.03 Means for securing magnet
Patents: 28 Patent Applications: 7 - 154.04 Cantilevered
Patents: 27 Patent Applications: 0 - 154.05 Axial
Patents: 36 Patent Applications: 4 - 154.06 Plural sets of magnets
Patents: 31 Patent Applications: 6 - 154.07 Adhesive
Patents: 36 Patent Applications: 5 - 154.08 Mounted to magnet yoke
Patents: 42 Patent Applications: 15 - 154.09 Split housing/yoke
Patents: 16 Patent Applications: 3 - 154.11 Embedded in core or pole
Patents: 35 Patent Applications: 2 - 154.12 Cylindrical sleeve holder
Patents: 20 Patent Applications: 1 - 154.13 Holder with pocket for magnet
Patents: 14 Patent Applications: 0 - 154.14 Spring clip
Patents: 35 Patent Applications: 4 - 154.15 Clip secured to housing
Patents: 22 Patent Applications: 1 - 154.16 Axially pressing on magnets
Patents: 22 Patent Applications: 0 - 154.17 Wedging between
Patents: 34 Patent Applications: 1 - 154.18 With a magnetic wedge
Patents: 8 Patent Applications: 0 - 154.19 With an integral wedge
Patents: 9 Patent Applications: 0 - 154.21 Permanent magnet characterized by the shape of the magnet
Patents: 53 Patent Applications: 12 - 154.22 With specific dimension
Patents: 31 Patent Applications: 6 - 154.23 Horseshoe
Patents: 4 Patent Applications: 0 - 154.24 Bar, square or rectangular
Patents: 6 Patent Applications: 3 - 154.25 Disk, ring, or cylinder
Patents: 24 Patent Applications: 3 - 154.26 With means to prevent or reduce demagnetization (i.e., auxiliary magnetic poles)
Patents: 32 Patent Applications: 0 - 154.27 With an auxiliary pole extending between stator magnet and rotor
Patents: 7 Patent Applications: 1 - 154.28 Specific magnetization
Patents: 46 Patent Applications: 10 - 154.29 Specific position or shape
Patents: 28 Patent Applications: 5 - 154.31 Single pole pair
Patents: 2 Patent Applications: 1 - 154.32 Permanent magnet extends along an axis
Patents: 2 Patent Applications: 0 - 154.33 Plural rotors
Patents: 3 Patent Applications: 1 - 154.34 With adjustable magnetic structure
Patents: 4 Patent Applications: 0 - 154.35 With specific pole pieces or pole shoes
Patents: 5 Patent Applications: 0 - 154.36 Circumferentially spaced poles and magnets
Patents: 6 Patent Applications: 0 - 154.37 Poles extending axially from magnets
Patents: 0 Patent Applications: 0 - 154.38 Pole shoe shape
Patents: 3 Patent Applications: 0 - 154.39 Different size
Patents: 0 Patent Applications: 0 - 154.41 Laminated
Patents: 2 Patent Applications: 0 - 154.42 Induced flux return pole
Patents: 1 Patent Applications: 0 - 154.43 Additional permanent magnets
Patents: 25 Patent Applications: 0 - 154.44 Additional shield or coating (non-magnetic)
Patents: 1 Patent Applications: 0 - 154.45 Multiple pole pairs
Patents: 5 Patent Applications: 8 - 154.46 With specific pole shoe pieces
Patents: 7 Patent Applications: 1 - 154.47 Magnet extending between two poles
Patents: 5 Patent Applications: 0 - 154.48 Induce flux return pole
Patents: 3 Patent Applications: 1 - 154.49 Adjustable
Patents: 0 Patent Applications: 1 - 155 Inductor type
Patents: 93 Patent Applications: 4 - 156.01 Permanent magnet rotor
Patents: 192 Patent Applications: 169 - 156.02 Transverse flux
Patents: 42 Patent Applications: 28 - 156.03 With a hysteresis ring
Patents: 9 Patent Applications: 5 - 156.04 Separate portion of the rotor magnet used as a thrust bearing
Patents: 21 Patent Applications: 14 - 156.05 Separate portion of the rotor magnet used as a magnet for sensing (i.e., for position or frequency)
Patents: 97 Patent Applications: 17 - 156.06 Combined with flux for sensing
Patents: 33 Patent Applications: 11 - 156.07 Additional flux directing magnets
Patents: 27 Patent Applications: 10 - 156.08 Mounting (such as on a surface of a shaft)
Patents: 134 Patent Applications: 72 - 156.09 Keyed to shaft
Patents: 24 Patent Applications: 8 - 156.11 Magnets in shaft
Patents: 44 Patent Applications: 3 - 156.12 Mounted on a sleeve/hub
Patents: 184 Patent Applications: 90 - 156.13 Keyed to a sleeve/hub
Patents: 37 Patent Applications: 6 - 156.14 Knurl between the sleeve/hub and a shaft
Patents: 10 Patent Applications: 4 - 156.15 Induced flux pole on sleeve/hub
Patents: 17 Patent Applications: 6 - 156.16 Spring mounted
Patents: 18 Patent Applications: 11 - 156.17 Spring mounted flux shunt
Patents: 2 Patent Applications: 0 - 156.18 With a threaded fastener
Patents: 26 Patent Applications: 2 - 156.19 With a wedge
Patents: 68 Patent Applications: 7 - 156.21 With an adhesive
Patents: 90 Patent Applications: 22 - 156.22 With an axial end clamp
Patents: 86 Patent Applications: 10 - 156.23 With casting material around the magnet
Patents: 39 Patent Applications: 5 - 156.24 Including a spring mount to adjust a flux
Patents: 5 Patent Applications: 5 - 156.25 Axially offset and radially magnetized magnets
Patents: 62 Patent Applications: 12 - 156.26 Mounted on a bell shape hub
Patents: 170 Patent Applications: 10 - 156.27 Including thermal compensation
Patents: 14 Patent Applications: 1 - 156.28 Sleeve covering magnet face
Patents: 153 Patent Applications: 37 - 156.29 Sleeve parallel to magnetic face
Patents: 26 Patent Applications: 6 - 156.31 Banding around magnet
Patents: 31 Patent Applications: 6 - 156.32 Including an axial air gap
Patents: 179 Patent Applications: 48 - 156.33 With pole shoes
Patents: 12 Patent Applications: 3 - 156.34 With a stator between a rotating flux return plate and rotor magnet
Patents: 29 Patent Applications: 4 - 156.35 With single rotor magnet and plural stators
Patents: 59 Patent Applications: 29 - 156.36 With plural sets of rotating magnets
Patents: 62 Patent Applications: 21 - 156.37 With single stator and plural sets of rotating magnets
Patents: 59 Patent Applications: 26 - 156.38 Specific shape
Patents: 161 Patent Applications: 51 - 156.39 Horseshoe
Patents: 12 Patent Applications: 0 - 156.41 Triangular
Patents: 19 Patent Applications: 2 - 156.42 Star
Patents: 11 Patent Applications: 0 - 156.43 Specific magnetization
Patents: 156 Patent Applications: 56 - 156.44 Different pole width
Patents: 19 Patent Applications: 4 - 156.45 Specific dimensions
Patents: 133 Patent Applications: 9 - 156.46 Shaped to vary air
Patents: 50 Patent Applications: 10 - 156.47 Skewed
Patents: 86 Patent Applications: 15 - 156.48 Pole shoes/pole pieces
Patents: 48 Patent Applications: 11 - 156.49 Radial flux path and radially positioned pole shoes
Patents: 50 Patent Applications: 3 - 156.51 Laminated pole shoes with multiple pole pairs
Patents: 17 Patent Applications: 4 - 156.52 Laminated pole shoes with single pole pair
Patents: 11 Patent Applications: 0 - 156.53 Embedded in a core
Patents: 311 Patent Applications: 103 - 156.54 Induced flux return poles
Patents: 35 Patent Applications: 9 - 156.55 Circumferential flux path and circumferential pole shoes
Patents: 89 Patent Applications: 5 - 156.56 Embedded
Patents: 161 Patent Applications: 13 - 156.57 With slots or holes to guide flux
Patents: 98 Patent Applications: 7 - 156.58 Different size pole shoes
Patents: 6 Patent Applications: 0 - 156.59 Pole shoes fixed to hub or shaft
Patents: 27 Patent Applications: 2 - 156.61 Pole shoes fixed with end plates
Patents: 33 Patent Applications: 0 - 156.62 Axially magnetized with poles shoes at one end
Patents: 7 Patent Applications: 2 - 156.63 Laminated pole shoes
Patents: 1 Patent Applications: 0 - 156.64 Axially magnetized with pole shoes at both ends
Patents: 45 Patent Applications: 3 - 156.65 Laminated pole shoes
Patents: 10 Patent Applications: 0 - 156.66 Claw poles/interfitting poles/lundel
Patents: 44 Patent Applications: 10 - 156.67 Laminated pole shoes
Patents: 1 Patent Applications: 0 - 156.68 Poles formed by magnet
Patents: 5 Patent Applications: 0 - 156.69 Plural sets of claw poles
Patents: 11 Patent Applications: 0 - 156.71 Claw poles extend in the same axial direction
Patents: 8 Patent Applications: 1 - 156.72 Additional support for magnet
Patents: 21 Patent Applications: 6 - 156.73 Additional support for claw pole tips
Patents: 6 Patent Applications: 0 - 156.74 Damping features
Patents: 12 Patent Applications: 1 - 156.75 Damper plate on magnetic face
Patents: 5 Patent Applications: 0 - 156.76 Damper in pole pieces
Patents: 2 Patent Applications: 1 - 156.77 Damper cage around magnet
Patents: 8 Patent Applications: 0 - 156.78 Squirrel cage
Patents: 40 Patent Applications: 15 - 156.79 Including laminated ring
Patents: 5 Patent Applications: 1 - 156.81 Magnet positioned between squirrel cage and stator
Patents: 18 Patent Applications: 0 - 156.82 Axially magnetized magnets or axially positioned magnets
Patents: 8 Patent Applications: 0 - 156.83 Including a flux barrier
Patents: 20 Patent Applications: 9 - 156.84 Flux barrier is a magnet
Patents: 16 Patent Applications: 0 - 157 Vertically disposed
Patents: 69 Patent Applications: 1 - 158 Universal (A.C. or D.C.)
Patents: 29 Patent Applications: 17 - 159 A.C.
Patents: 20 Patent Applications: 12 - 160 Frequency converters
Patents: 26 Patent Applications: 0 - 161 Phase-shifter type
Patents: 11 Patent Applications: 0 - 162 Synchronous
Patents: 335 Patent Applications: 37 - 163 Reaction type
Patents: 58 Patent Applications: 1 - 164 Toroidal coil
Patents: 148 Patent Applications: 19 - 165 D.C. excited
Patents: 51 Patent Applications: 7 - 166 Induction
Patents: 287 Patent Applications: 80 - 167 With repulsion-starting
Patents: 7 Patent Applications: 0 - 168 Inductor-type generators (variable reluctance)
Patents: 502 Patent Applications: 51 - 169 High frequency
Patents: 4 Patent Applications: 0 - 170 Multifrequency
Patents: 5 Patent Applications: 0 - 171 Induction generators
Patents: 87 Patent Applications: 5 - 172 Shifting field (e.g., shading pole)
Patents: 55 Patent Applications: 2 - 173 Commutated
Patents: 8 Patent Applications: 0 - 174 Single phase
Patents: 4 Patent Applications: 0 - 175 Conduction operation
Patents: 1 Patent Applications: 0 - 176 Transformer operation
Patents: 8 Patent Applications: 0 - 177 D.C.
Patents: 54 Patent Applications: 12 - 178 Homopolar
Patents: 186 Patent Applications: 32 - 179 Windings and core structure
Patents: 784 Patent Applications: 216 - 180 Field or excitation windings or structure
Patents: 428 Patent Applications: 107 - 181 Combined permanent and electromagnet
Patents: 325 Patent Applications: 53 - 182 With short-circuited winding or conductor
Patents: 25 Patent Applications: 2 - 183 Damper winding
Patents: 36 Patent Applications: 4 - 184 Plural field windings
Patents: 576 Patent Applications: 71 - 185 Plural sets of poles
Patents: 107 Patent Applications: 7 - 186 Interpole, compensating or neutralizing poles
Patents: 115 Patent Applications: 7 - 187 Slotted or divided pole
Patents: 56 Patent Applications: 5 - 188 Differentially related
Patents: 11 Patent Applications: 0 - 189 Variable length or tapped winding
Patents: 18 Patent Applications: 1 - 190 Magnetic shunts for shifting field flux
Patents: 103 Patent Applications: 9 - 191 Adjustable magnetic structure
Patents: 161 Patent Applications: 37 - 192 Nonmagnetic inserts or air gaps
Patents: 30 Patent Applications: 3 - 193 Nonuniform core cross section
Patents: 58 Patent Applications: 1 - 194 Coil supports and spools
Patents: 361 Patent Applications: 56 - 195 Armature or primary
Patents: 73 Patent Applications: 137 - 196 Corona-prevention
Patents: 66 Patent Applications: 17 - 197 With short-circuited winding or conductor
Patents: 39 Patent Applications: 6 - 198 Plural windings
Patents: 404 Patent Applications: 133 - 199 Combined stationary and rotary
Patents: 6 Patent Applications: 1 - 200 Variable length or tapped windings
Patents: 27 Patent Applications: 3 - 201 Bar windings
Patents: 315 Patent Applications: 97 - 202 Open windings
Patents: 14 Patent Applications: 4 - 203 Closed windings
Patents: 41 Patent Applications: 13 - 204 Equalizers
Patents: 27 Patent Applications: 7 - 205 Multiplex
Patents: 10 Patent Applications: 1 - 206 Lap
Patents: 65 Patent Applications: 12 - 207 Wave
Patents: 110 Patent Applications: 50 - 208 Coils
Patents: 437 Patent Applications: 160 - 209 Adjustable magnetic structure
Patents: 80 Patent Applications: 19 - 210 Secondary windings or conductors
Patents: 20 Patent Applications: 9 - 211 Squirrel cage
Patents: 254 Patent Applications: 67 - 212 Inherently variable impedance (double squirrel cage)
Patents: 34 Patent Applications: 8 - 213 Antiparasitic conductors (imbricated)
Patents: 55 Patent Applications: 11 - 214 Coil retainers or slot closers
Patents: 453 Patent Applications: 106 - 215 Slot liners
Patents: 289 Patent Applications: 150 - 216 Core features
Patents: 1184 Patent Applications: 362 - 217 Securing laminae
Patents: 458 Patent Applications: 135 - 218 Pole assembly and securing means
Patents: 385 Patent Applications: 120 - 219 Current collectors
Patents: 142 Patent Applications: 18 - 220 Spark-reduction
Patents: 90 Patent Applications: 4 - 221 Arc extinguishers
Patents: 19 Patent Applications: 1 - 222 Spark-neutralizing current
Patents: 8 Patent Applications: 1 - 223 Flux compensators
Patents: 10 Patent Applications: 0 - 224 Commutating poles or windings
Patents: 15 Patent Applications: 0 - 225 Short-circuited coil circuit
Patents: 22 Patent Applications: 3 - 226 Field-distortion
Patents: 0 Patent Applications: 0 - 227 With cooling
Patents: 56 Patent Applications: 9 - 228 With cleaning, lubricating, resurfacing or repairing
Patents: 38 Patent Applications: 12 - 229 Brush-traversing
Patents: 27 Patent Applications: 1 - 230 Circumferential brush shifting on reversal
Patents: 20 Patent Applications: 0 - 231 Rotary structure
Patents: 37 Patent Applications: 3 - 232 Slip rings
Patents: 177 Patent Applications: 38 - 233 Commutators
Patents: 288 Patent Applications: 53 - 234 Winding connectors
Patents: 159 Patent Applications: 40 - 235 Molded support
Patents: 129 Patent Applications: 5 - 236 Cylindrical or drum
Patents: 114 Patent Applications: 20 - 237 Disc
Patents: 158 Patent Applications: 21 - 238 Fixed structure
Patents: 63 Patent Applications: 6 - 239 Brush holders or rigging
Patents: 673 Patent Applications: 166 - 240 Brush-lifting
Patents: 37 Patent Applications: 3 - 241 Circumferential adjustment
Patents: 49 Patent Applications: 8 - 242 Brush engagements or guides
Patents: 301 Patent Applications: 43 - 243 Fluid pressure-operated
Patents: 8 Patent Applications: 0 - 244 Brush affixed to pivoted arm
Patents: 53 Patent Applications: 11 - 245 Slidable brush
Patents: 138 Patent Applications: 25 - 246 Pressure arm
Patents: 55 Patent Applications: 5 - 247 Axial spring
Patents: 74 Patent Applications: 18 - 248 Brushes
Patents: 211 Patent Applications: 29 - 249 With electrical connector
Patents: 154 Patent Applications: 17 - 251 Structure (e.g., composite material)
Patents: 97 Patent Applications: 21 - 252 With composition feature
Patents: 43 Patent Applications: 4 - 253 Carbonaceous
Patents: 36 Patent Applications: 13 - 254 Stator structure
Patents: 1447 Patent Applications: 240 - 255 For railway-type machines
Patents: 8 Patent Applications: 0 - 256 Stray field flux loss prevention
Patents: 92 Patent Applications: 1 - 257 Interfitting or claw-tooth stators
Patents: 257 Patent Applications: 123 - 258 Frame and core type
Patents: 398 Patent Applications: 23 - 259 Core assembly
Patents: 406 Patent Applications: 103 - 260 End turn supports
Patents: 327 Patent Applications: 45 - 261 Rotor structure
Patents: 1107 Patent Applications: 227 - 262 High-speed rotor type
Patents: 96 Patent Applications: 14 - 263 Interfitting or claw tooth rotors
Patents: 416 Patent Applications: 116 - 264 Armatures
Patents: 77 Patent Applications: 11 - 265 Drum
Patents: 54 Patent Applications: 7 - 266 Hollow (e.g., double air gap)
Patents: 398 Patent Applications: 65 - 267 Ring
Patents: 60 Patent Applications: 5 - 268 Disc
Patents: 827 Patent Applications: 168 - 269 Salient pole
Patents: 238 Patent Applications: 18 - 270 End turn supports
Patents: 221 Patent Applications: 29 - 271 Banding
Patents: 91 Patent Applications: 12 - 272 Elements
Patents: 5 Patent Applications: 10 - 273 Miscellaneous
Patents: 19 Patent Applications: 7 - 40MM Miniature motors
Patents: 475 Patent Applications: 33 - 800 PIEZOELECTRIC POLYMERS (E.G., MYLAR, PVDF)
Patents: 421 Patent Applications: 25
| DefinitionThis is the residual class for all subject matter, not elsewhere classified, relating to electrical generator or motor structure. (1) Note. This Class was produced in 1953 by making official the unofficial digests which have been established by the Examiners of Division 26 during the period from about 1900 onwards. A caveat is given: while it is believed that the titles and definitions are reasonably accurate, no assurance can be given that all the patents, issued prior to the date of reclassification, are in the proper subclass since only some of these individual patents were read during the reclassification project. Consequently, in making a thorough search in this class, it is advisable to investigate every subclass which may possibly be pertinent and not, in order to shorten the search, to rely upon the principle of superiority of subject matter because of position in the schedule, since that principle is applicable only in classes where each patent has been analyzed and placed in the schedule in accordance with that portion of the disclosed subject matter which is claimed. (2) Note. Since Class 310 takes, under the class definition, only subject matter relating to electrical generator or motor structure not elsewhere classified, its scope can be determined only by determining the scope of other related classes, which classes are listed below under search class. Also consult the search notes in the definitions of these classes. (3) Note. Many mechanical classes contain electrical disclosures, as where an electrical machine is disclosed in a mechanical environment, with which it cooperates. Consequently, in appropriate instances, the search must extend to the class or classes which relate to the environment in which the electrical disclosure may be found. |
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