.~ 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