Title: Process and apparatus for sorting refuse

Abstract: Refuse, particularly of the household type, is sorted according to density by the following consecutive operations: Sifting the refuse; comminuting the oversize obtained; separating the comminuted material by a gas stream into light and heavy material fractions; separating the heavy material fraction by a liquid stream into two fractions of different density; and separating the two fractions of different density into basic components.

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Inventors: Hoberg, Heinz (Aachen-Laurensberg, DT)
Schulz, Erwin

Application Number: 659854
Filing Date: 1976-02-20
Publication_date: 1977-08-23
Assignee:
Primary Class(es): 241/19 209/137, 209/161, 241/20, 241/24.14, 241/77, 241/DIG38
Other Classes:
US Patent Ref:

1890206	Dec, 1932	Andrews	209/160.
1937190	Nov, 1933	Chance	209/161.
2162392	Jun, 1939	Solomo, Jr. et al.	209/137.
3351195	Nov, 1967	Hukki	209/158.
3802631	Apr, 1974	Boyd	241/DIG.
3848813	Nov, 1974	Stancjyk	241/DIG.
3876157	Apr, 1975	McIntire et al.	241/DIG.
3897215	Jul, 1975	Davidso, Jr. et al.	241/DIG.
3922975	Dec, 1975	Reese	241/DIG.
3925198	Dec, 1975	Eckhoff et al.	241/DIG.

Other Refs:
Primary Examiner: Custer, Jr., Granville Y.
Assistant Examiner:
Attorney: Spencer & Kaye