US PATENT SUBCLASS 96 / 17
.~ Electric charge produced by friction (e.g., by gas flow, etc.)


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}
17.~ Electric charge produced by friction (e.g., by gas flow, etc.)


DEFINITION

Classification: 96/17

Electric charge produced by friction (e.g., by gas flow, etc.):

(under subclass 15) Apparatus in which electrification of a separator part is accomplished by friction between two solid bodies or by flow of gas across or through a solid.

(1) Note. Placing a member in an electric field to charge such member is not included in this subclass.

SEE OR SEARCH THIS CLASS, SUBCLASS:

16, for electric field separation apparatus including radioactive or ultraviolet light ionizers.

80+, for electric field separation apparatus with voltage supply means or circuitry.

SEE OR SEARCH CLASS

55, Gas Separation,

360, for means to ground a filter and serving to prevent shock hazard, the static electricity having no precipitating or separating function. 310, Electrical Generator or Motor Structure,

308+, ; particularly subclass 310 for charge accumulating

electrostatic generators of the friction type.