US Patent Class 322
ELECTRICITY: SINGLE GENERATOR SYSTEMS-- Main Headings




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Current as of: June, 1999
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CLASS NOTES
1  DF  PORTABLY MOUNTED
2 R  DF  NONMAGNETIC-TYPE GENERATOR {1}
3  DF  RECIPROCATING AND/OR OSCILLATING-TYPE GENERATOR
4  DF  WITH FLYWHEELS OR MASSIVE MOVING PARTS
5  DF  WITH GENERATOR POLARITY CONTROL {1}
7  DF  COMBINED CONTROL OF GENERATING MEANS AND LOAD CIRCUIT {1}
9  DF  PLURAL DRIVING MEANS
10  DF  WITH PHYSICAL STARTING AND/OR STOPPING OF THE GENERATOR {3}
14  DF  COMBINED CONTROL OF GENERATOR AND DRIVING MEANS {1}
17  DF  AUTOMATIC CONTROL OF GENERATOR OR DRIVING MEANS {13}
38  DF  DRIVING MEANS CONTROL {1}
40  DF  POWER TRANSMITTING MECHANISM CONTROL {1}
44  DF  GENERATOR CONTROL {11}
99  DF  WITH SIGNALS, INDICATORS, RECORDERS, TESTING, ETC.
100  DF  MISCELLANEOUS
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DIGESTS
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DIG 2  DF  Generator field current-responsive systems
DIG 5  DF  Hall effects elements
DIG 6  DF  Ripple sensitive