US PATENT SUBCLASS 209 / 127.1
ELECTROSTATIC

Current as of: June, 1999
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209 /   HD   CLASSIFYING, SEPARATING, AND ASSORTING SOLIDS

127.1ELECTROSTATIC {7}
127.2  DF  .~> With heating of particles
127.3  DF  .~> With vibrating trough charging of particles
127.4  DF  .~> Free fall type particle charging
128  DF  .~> Attracting and repelling
129  DF  .~> Attracting
130  DF  .~> Repelling
131  DF  .~> Stratifying

DEFINITION

Classification: 209/127.1

ELECTROSTATIC:

(under the class definition) Methods and means employing electrostatic charges for assorting materials by segregating those having certain characteristics from others having different characteristics.

(1) Note. The characteristics may be of weight, size electroconductivity, hysteresis, etc.

SEE OR SEARCH THIS CLASS, SUBCLASS:

12.2, for electrostatic separation combined with other separating operations classifiable in this class (Class 209).

SEE OR SEARCH CLASS

15, Brushing, Scrubbing, and General Cleaning,

1.5, for machines and implements employing an electrostatic field for removing foreign material from the surface of objects being cleaned.

204, Chemistry: Electrical and Wave Energy, 554+, for electrical (e.g., electrostatic, etc.) or simultaneous electrical and magnetic separation or purification of liquids or magnetic treatment of liquids (other than separation) and subclasses 660+ for corresponding apparatus.