US Patent Class 363
ELECTRIC POWER CONVERSION SYSTEMS
 Electronic File Wrappers |  Electronic Patent Documents |  Paper Patent Documents | Current as of: June, 1999
|  and Services |
| Electronic File Wrappers | Electronic Patent Documents | Paper Patent Documents | Current as of: June, 1999
| and Services |
| DF | CLASS NOTES | |
| 1 | DF | CASCADED OR COMBINED, DIVERSE CONVERSIONS IN WHICH THE FREQUENCY OR PHASE OR COMBINED CONVERSION IS WITHOUT INTERMEDIATE CONVERSION TO D.C. |
| 2 | DF | .~ Current and phase (e.g., D.C.-Ph1-Ph2) |
| 3 | DF | .~.~ Phase 1 to phase 2 to D.C. |
| 4 | DF | .~.~.~ Single phase to polyphase to D.C. |
| 5 | DF | .~.~.~ With interphase transformer |
| 6 | DF | .~.~.~.~ Including plural anode/single cathode device |
| 7 | DF | .~.~.~ With dynamic rectifier in phase 2 to D.C. stage (e.g., commutator type) |
| 8 | DF | .~ Current and frequency (e.g., f1-f2-D.C.) |
| 9 | DF | .~ Combined phase and frequency conversion (i.e., Ph1f1-Ph2f2) |
| 10 | DF | .~.~ By semiconductor device converter |
| 11 | DF | .~.~ By electron tube converter |
| 12 | DF | .~.~ By saturable reactor converter |
| 13 | DF | CURRENT CONVERSION |
| 14 | DF | .~ Cryogenic |
| 15 | DF | .~ Including D.C.-A.C.-D.C. converter |
| 16 | DF | .~.~ Having transistorized inverter |
| 17 | DF | .~.~.~ Bridge type |
| 18 | DF | .~.~.~ Single ended self oscillating type |
| 19 | DF | .~.~.~.~ With automatic control of the magnitude of the output voltage or current |
| 20 | DF | .~.~.~ Single ended separately driven type |
| 21 | DF | .~.~.~.~ With automatic control of the magnitude of the output voltage or current |
| 22 | DF | .~.~.~ Double ended (i.e., push-pull) self oscillating tye |
| 23 | DF | .~.~.~.~ With automatic control of the magnitude of the output voltage or current |
| 24 | DF | .~.~.~ Double ended (i.e., push-pull) separately driven type |
| 25 | DF | .~.~.~.~ With automatic control of the magnitude of the output voltage or current |
| 26 | DF | .~.~.~.~.~ Using pulse with modulation |
| 27 | DF | .~.~ Having thyristor inverter (e.g., SCR) |
| 28 | DF | .~.~.~ With automatic control of the magnitude of the output voltage or current |
| 29 | DF | .~.~ Having electron tube inverter |
| 30 | DF | .~.~.~ Single ended type |
| 31 | DF | .~.~.~ Double ended type (i.e., push-pull) |
| 32 | DF | .~.~ Rotary-commutator-type inverter |
| 33 | DF | .~.~ Vibrator-type inverter |
| 34 | DF | .~ Including an A.C.-D.C.-A.C. converter |
| 35 | DF | .~.~ For transfer of power via a high voltage D.C. link (i.e., HVDC transmission system) |
| 36 | DF | .~.~ For change of phase (e.g., number of phases) |
| 37 | DF | .~.~ By semiconductor rectifier and inverter |
| 38 | DF | .~.~ By electron tube rectifier and inverter |
| 39 | DF | .~ With means to introduce or eliminate frequency components |
| 40 | DF | .~.~ In inverter systems |
| 41 | DF | .~.~.~ By pulse modulation technique (e.g., PWM, PPM, etc.) |
| 42 | DF | .~.~.~.~ Including notching |
| 43 | DF | .~.~.~ By step-wave, amplitude summation technique |
| 44 | DF | .~.~ In rectifier systems |
| 45 | DF | .~.~.~ Including means for reducing ripples from the output |
| 46 | DF | .~.~.~.~ With ripple responsive, automatic control |
| 47 | DF | .~.~.~.~ With low pass L or LC filter |
| 48 | DF | .~.~.~.~.~ For semiconductor rectifier |
| 49 | DF | .~ With starting arrangement |
| 50 | DF | .~ Including automatic or integral protection means |
| 51 | DF | .~.~ For high voltage D.C. transmission systems |
| 52 | DF | .~.~ For rectifiers |
| 53 | DF | .~.~.~ Semiconductor type |
| 54 | DF | .~.~.~.~ Thyristor |
| 55 | DF | .~.~ For inverters |
| 56 | DF | .~.~.~ Semiconductor type |
| 57 | DF | .~.~.~.~ Thyristor |
| 58 | DF | .~.~.~.~.~ Bridge |
| 59 | DF | .~ With voltage multiplication means (i.e., V out > V in) |
| 60 | DF | .~.~ Including semiconductor means |
| 61 | DF | .~.~.~ For rectifying |
| 62 | DF | .~ With voltage division by storage type impedance (i.e., V out) |
| 63 | DF | .~ With means to selectively provide D.C. of either polarity |
| 64 | DF | .~ With interphase transformer |
| 65 | DF | .~ Having plural converters for single conversion |
| 66 | DF | .~.~ Including plural anodes and single cathode (e.g., vapor arc device) |
| 67 | DF | .~.~ Plural rectifiers |
| 68 | DF | .~.~.~ In series (e.g., series SCR's, bridge circuits, etc.) |
| 69 | DF | .~.~.~ In parallel |
| 70 | DF | .~.~.~.~ Including semiconductor device |
| 71 | DF | .~.~ Plural inverters |
| 72 | DF | .~.~.~ Master-slave |
| 73 | DF | .~ Constant current to constant voltage or vice versa |
| 74 | DF | .~ With condition responsive means to control the output voltage or current |
| 75 | DF | .~.~ Including inductive integral sensing and control means (e.g., ferroresonant circuit) |
| 76 | DF | .~.~ Including integral sensing and control means for rectifier |
| 77 | DF | .~.~.~ With semiconductor conversion means |
| 78 | DF | .~.~ Cooperating separate sensing and control means |
| 79 | DF | .~.~.~ Including plural sensing or control means |
| 80 | DF | .~.~.~.~ With transistor as control means in the line circuit |
| 81 | DF | .~.~.~.~ By rectifier |
| 82 | DF | .~.~.~.~.~ With inductive control means in the line circuit |
| 83 | DF | .~.~.~.~.~ With electron tube or valve as control means in the line circuit |
| 84 | DF | .~.~.~ For rectifier system |
| 85 | DF | .~.~.~.~ With thyristor control means in the line circuit |
| 86 | DF | .~.~.~.~.~ External to rectifier (e.g., pre or post regulation) |
| 87 | DF | .~.~.~.~.~ For plural phase to D.C. rectifier |
| 88 | DF | .~.~.~.~.~ For full wave rectifier with at least 1 three electrode device |
| 89 | DF | .~.~.~.~ With transistor control means in the line circuit |
| 90 | DF | .~.~.~.~ With inductive control means in the line circuit |
| 91 | DF | .~.~.~.~.~ Saturable reactor (e.g., magnetic amplifier) |
| 92 | DF | .~.~.~.~.~.~ In plural phase to D.C. system |
| 93 | DF | .~.~.~.~.~.~ With plural control windings |
| 94 | DF | .~.~.~.~ With electron tube or valve control means in the line circuit |
| 95 | DF | .~.~.~ For inverter |
| 96 | DF | .~.~.~.~ With thyristor control means in the line circuit |
| 97 | DF | .~.~.~.~ With transistor control means in the line circuit |
| 98 | DF | .~.~.~.~.~ For bridge-type inverter |
| 99 | DF | .~.~.~.~ With electron tube or valve control means in the line circuit |
| 100 | DF | .~ With manual control of the output voltage or current |
| 101 | DF | .~ With auxiliary bucking or boosting EMF |
| 102 | DF | .~ Using dynamoelectric machine converter |
| 103 | DF | .~.~ Plural collector type |
| 104 | DF | .~.~.~ Having plural field windings |
| 105 | DF | .~.~.~ Having auxiliary motor drive |
| 106 | DF | .~ By circuit interrupter type |
| 107 | DF | .~.~ Rotating |
| 108 | DF | .~.~.~ Rectifier (i.e., A.C.-D.C.) |
| 109 | DF | .~.~.~ Inverter (i.e., D.C.-A.C.) |
| 110 | DF | .~.~ Vibrating |
| 111 | DF | .~ Using electronic tube converter |
| 112 | DF | .~.~ With gap in open atmosphere |
| 113 | DF | .~.~ With cathode element control |
| 114 | DF | .~.~ In rectifier systems |
| 115 | DF | .~.~.~ With retarding or delaying control means |
| 116 | DF | .~.~.~ With discharge control means (e.g., grid) |
| 117 | DF | .~.~.~.~ D.C. bias control |
| 118 | DF | .~.~.~.~ Phase angle control |
| 119 | DF | .~.~.~.~ Particular waveform grid excitation |
| 120 | DF | .~.~ In inverter systems |
| 121 | DF | .~.~.~ With discharge control means (e.g., grid) |
| 122 | DF | .~.~.~.~ Grid-like electrode |
| 123 | DF | .~ Using semiconductor-type converter |
| 124 | DF | .~.~ In chopper converter systems |
| 125 | DF | .~.~ In rectifier systems |
| 126 | DF | .~.~.~ Diode |
| 127 | DF | .~.~.~ Transistor |
| 128 | DF | .~.~.~ Thyristor |
| 129 | DF | .~.~.~.~ Plural phase to D.C. |
| 130 | DF | .~.~.~.~ With magnetic control means |
| 131 | DF | .~.~ In transistor inverter systems |
| 132 | DF | .~.~.~ Bridge type |
| 133 | DF | .~.~.~ Double ended (i.e., push-pull) type |
| 134 | DF | .~.~.~.~ Separately driven |
| 135 | DF | .~.~ In thyristor inverter systems |
| 136 | DF | .~.~.~ Bridge type |
| 137 | DF | .~.~.~.~ D.C. to plural phase |
| 138 | DF | .~.~.~.~.~ With commutation means |
| 139 | DF | .~.~.~ Double ended (i.e., push-pull) type |
| 140 | DF | .~ Using impedance-type converter |
| 141 | DF | .~ With cooling means |
| 142 | DF | .~ With means to connect the input to diverse power sources |
| 143 | DF | .~.~ 110/220 Volts A.C. in, constant 110 Volts D.C. out |
| 144 | DF | .~ With conductive support mounting |
| 145 | DF | .~.~ Adapted for use with alternators |
| 146 | DF | .~ Encased in plug housing |
| 147 | DF | .~ Integrated circuit |
| 148 | DF | PHASE CONVERSION (Ph1-Ph2) WITHOUT INTERMEDIATE CONVERSION TO D.C. |
| 149 | DF | .~ With automatic voltage magnitude or phase angle control |
| 150 | DF | .~ By dynamoelectric machine converter |
| 151 | DF | .~ By electron tube converter |
| 152 | DF | .~ By induction-type converter |
| 153 | DF | .~.~ Transformer type |
| 154 | DF | .~.~.~ Stationary |
| 155 | DF | .~.~.~.~ With passive phase shift element |
| 156 | DF | .~ By passive phase shift elements |
| 157 | DF | FREQUENCY CONVERSION (f1-f2) WITHOUT INTERMEDIATE CONVERSION TO D.C. |
| 158 | DF | .~ By varactor |
| 159 | DF | .~ By semiconductor converter |
| 160 | DF | .~.~ Thyristor type |
| 161 | DF | .~.~.~ Positive and negative groups |
| 162 | DF | .~.~.~.~ Including blanking or inhibiting means |
| 163 | DF | .~.~ Transistor type |
| 164 | DF | .~ With automatic voltage magnitude control |
| 165 | DF | .~ With automatic frequency control |
| 166 | DF | .~ By electron tube converter |
| 167 | DF | .~.~ With discharge control means |
| 168 | DF | .~.~.~ Including plural anodes and single cathode device (e.g., vapor arc device) |
| 169 | DF | .~.~.~ Thyratron type |
| 170 | DF | .~ By induction-type converter |
| 171 | DF | .~.~ Transformer |
| 172 | DF | .~.~.~ Saturable core |
| 173 | DF | .~.~ LC circuit |
| 174 | DF | .~.~ Dynamoelectric machine |
| 175 | DF | .~.~.~ Motor generator type |
| 176 | DF | .~.~.~ Including induction motor |
| 177 | DF | .~ By circuit interrupter converter |
| 178 | DF | MISCELLANEOUS |
| FOR | DD | ****************************** |