US PATENT SUBCLASS 96 / 20
.~.~ Arc, spark, or flashover sensing means

Current as of: June, 1999
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96 /   HD   GAS SEPARATION: APPARATUS

15  DF  ELECTRIC FIELD SEPARATION APPARATUS (E.G., ELECTRICAL PRECIPITATOR, ELECTROSTATIC TYPE, ETC.) {17}
18  DF  .~ With control means responsive to sensed condition {4}
20.~.~ Arc, spark, or flashover sensing means {1}
21  DF  .~.~.~> Current sensing means

DEFINITION

Classification: 96/20

Arc, spark, or flashover sensing means:

(under subclass 18) Apparatus in which means are provided to detect the presence or frequency of sparking discharge in the gaseous fluid mixture (e.g., arc or flashover of current bursts between differently charged parts, such as between discharge and collector electrodes, etc.) and to control or regulate the apparatus based on the detected sparking.

(1) Note. A sparking event or its frequency may be detected indirectly (e.g., by detecting short bursts of increasing system electrical current or decreasing electrode voltage, etc.), but must be specifically claimed to be classified in this subclass.

SEE OR SEARCH CLASS

95, Gas Separation: Processes,

5, for electric field separation processes with control responsive to sensed sparking.