Light-material segregating method and apparatus

Details Light-material segregating method and apparatus Light-material segregating method and apparatus

1980-02-19

1981-07-21

Cuchlinski, Jr., William A.

Classifying, separating, and assorting solids

Plural, diverse separating operations

Including electrostatic

209 20, 209129, 209138, 209466, B03C 704, B07B 902

Patent

active

042797403

ABSTRACT:
An apparatus and method for separating light and heavy materials from one another. Materials to be separated are transported on a conveyer belt past a set of overhead rollers. Air is sucked through gaps between the rollers with covers surrounding groups of rollers which are coupled to a suction pump. Air is jetted through apertures in the conveyer belt to loosen adherence between lighter materials and larger articles. A high voltage is impressed upon the rollers to provide electrostatic attraction for light dry materials. The rollers may be provided with opposing protrusions which are used to pinch off certain materials.

REFERENCES:
patent: 794647 (1905-07-01), Sutton et al.
patent: 1588881 (1926-06-01), Evans
patent: 1720861 (1929-07-01), Stebbins
patent: 2009928 (1935-07-01), Henry
patent: 2722312 (1955-11-01), Gear
patent: 2947416 (1960-08-01), Ross
patent: 3349902 (1967-10-01), Lafranca, Jr. et al.
patent: 3831748 (1974-08-01), Berkowitz et al.

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