|
| US4056464 | 17. Mai 1976 | 1. Nov. 1977 | | Mineral jigs |
| US4071440 | 22. Juli 1976 | 31. Jan. 1978 | Centralny Osrodek Projektowokonstrukcyjny Maszyn Gorniczych "Komag" | Method and apparatus of stratification with tangential feed |
| US4279741 | 7. Mai 1979 | 21. Juli 1981 | Intercontinental Development Corporation | Method and apparatus for centrifugally separating a heavy fraction from a light weight fraction within a pulp material |
| US4744890 | 21. März 1986 | 17. Mai 1988 | University of Utah | Flotation apparatus and method |
| US4838434 | 17. Mai 1988 | 13. Juni 1989 | University of Utah | Air sparged hydrocyclone flotation apparatus and methods for separating particles from a particulate suspension |
| US4997549 | 19. Sept. 1989 | 5. März 1991 | Advanced Processing Technologies, Inc. | Air-sparged hydrocyclone separator |
| US5333797 | 3. Apr. 1992 | 2. Aug. 1994 | | Commingled recyclables recovery and recycling process and related apparatuses |
| US5588598 | 28. Juli 1994 | 31. Dez. 1996 | | Commingled recyclables recovery and recycling process and related apparatuses |