|
| US4073431 | 18 nov. 1976 | 14 févr. 1978 | Flottweg-Werk Dr. Georg Bruckmayer GmbH & Co. KG | Solid jacket worm centrifuge with rpm differential variable coupling between jacket part and worm part |
| US4085888 | 18 nov. 1976 | 25 avr. 1978 | Flottweg-Werk Dr. Georg Bruckmayer GmbH & Co. KG | Process and apparatus for the treatment of suspensions |
| US4113171 | 12 avr. 1977 | 12 sept. 1978 | | Valve arrangement for limiting torque of a hydraulic motor of a centrifuge |
| US4120447 | 26 oct. 1976 | 17 oct. 1978 | Flottweg-Werk Dr. Georg Bruckmayer GmbH & Co. KG | Pressure-tight solid bowl screw centrifuge |
| US4141488 | 18 août 1977 | 27 févr. 1979 | Koninklijke Nederlandse Papierfabrieken N.W. | Centrifuge |
| US4228949 | 3 oct. 1978 | 21 oct. 1980 | Thomas Broadbent & Sons Limited | Solid bowl scroll discharge decanter centrifuges |
| US4240578 | 26 avr. 1978 | 23 déc. 1980 | | Solid bowl decanter centrifuges of the scroll discharge type |
| US4298162 | 25 janv. 1980 | 3 nov. 1981 | Alfa-Laval Separation A/S | Decanter centrifuge |
| US4327862 | 22 oct. 1979 | 4 mai 1982 | Klockner-Humboldt-Deutz AG | Worm centrifuge |
| US4369915 | 13 févr. 1981 | 25 janv. 1983 | Klockner-Humboldt-Deutz AG | Method and apparatus for regulating the differential rpm of two rotating parts |
| US4381849 | 29 juin 1981 | 3 mai 1983 | Bird Machine Company, Inc. | Solids-liquid slurry separating centrifuge |
| US4411646 | 12 mai 1981 | 25 oct. 1983 | | Decanter centrifuge having differential drive unit |
| US4978331 | 11 juil. 1989 | 18 déc. 1990 | Alfa-Laval AB | Method and apparatus for cleaning in place of a decanter centrifuge |
| US5342279 | 18 août 1992 | 30 août 1994 | Alfa Laval Separation Inc. | Decanter centrifuge having dual motor drive |
| US5344570 | 14 janv. 1993 | 6 sept. 1994 | James E. McLachlan | Method and apparatus for removing solids from a liquid |
| US5403260 | 4 juin 1993 | 4 avr. 1995 | Hutchinson-Hayes International | Automatic frequency controlled motor backdrive |
| US5494584 | 16 juin 1994 | 27 févr. 1996 | James E. McLachlan | Method and apparatus for controlling a pump upstream of a centrifuge |
| US5681256 | 27 oct. 1995 | 28 oct. 1997 | NKK Corporation | Screw decanter centrifuge having a speed-torque controller |
| US6387032 | 17 août 2000 | 14 mai 2002 | Westfalia Separator AG | Screw-type solid bowl centrifuge with multistage planetary gear train |
